autocal: 序列页阵列预览工具、2D 图点可见度，标签顺序与送到标定页

- 标签顺序：几何与安装 放到 测试序列 之前
- 序列点增加可选 uv_px（向后兼容），点表新增 U/V 列；加入所选点、删除所选、
  送到标定页（按 U/V 经同一套求解加入标定队列并切换页面）
- 已选点结果改显示在选点区状态行，不再写入全局顶部状态条
- 序列页左上区改紧凑：名称与备注同一行，分“阵列”“运动参数”两页；
  运动参数每行三组，输入框改用 compactField
- 新增阵列工具（array_plan.py、ui/array_tool.py）：UV 规则网格（可蛇形遍历）与
  阶段预设，逐点检查是否在曲面内、是否留有边距，候选点实时预览在 2D 图上，
  只有可用点才能加入，已在序列里的点不重复加入
- 2D 平面图：标记改为缩放后再绘制并加深色描边，修复缩小后点不清；
  底图可选 原图/灰度/变暗/仅轮廓，点色可选 黄/白/青/橙/灰（默认灰度+黄，写入偏好）；
  序列点带编号并连线显示遍历顺序，选中行高亮
- 新增测试 test_sequence_uv、test_sequence_to_capture、test_array_plan、test_array_tool

apps/autocal/config/locales/en_US.json

@@ -494,7 +494,18 @@
     "preview_solve_failed": "Solve failed: {error}",
     "loaded": "Bundle loaded: {vertices} vertices · {triangles} triangles · {extent} mm · {scale} mm per unit",
     "load_failed": "Load failed: {error}",
-    "picked": "Picked: residual {residual}° · yaw {yaw}° · pitch {pitch}°"
+    "picked": "Picked: residual {residual}° · yaw {yaw}° · pitch {pitch}°",
+    "bg_label": "Map",
+    "colour_label": "Dots",
+    "bg_original": "Original",
+    "bg_gray": "Grey",
+    "bg_dim": "Dimmed",
+    "bg_outline": "Outline",
+    "colour_yellow": "Yellow",
+    "colour_white": "White",
+    "colour_cyan": "Cyan",
+    "colour_orange": "Orange",
+    "colour_grey": "Grey"
   },
   "sequence": {
     "title": "Test sequence design",
@@ -556,7 +567,19 @@
     "imported": "Sequence imported: {name} ({count} points)",
     "import_warnings": "Import reported {count} warning(s)",
     "confirm_discard": "The current sequence has not been exported. Importing replaces it. Continue?",
-    "points_hint": "Coordinates are generated and checked per point; they are not typed. A typed coordinate is one nothing has checked, and one wrong number ruins a run."
+    "points_hint": "Coordinates are generated and checked per point; they are not typed. A typed coordinate is one nothing has checked, and one wrong number ruins a run.",
+    "col_u": "U (px)",
+    "col_v": "V (px)",
+    "btn_send": "Send to capture ({count})",
+    "send_tip": "Add the selected points to the capture page's queue by U/V and switch to it.",
+    "send_none": "Select rows that have U/V first.",
+    "btn_add_picked": "Add picked point",
+    "add_picked_tip": "Add the point just picked on the 2D map to the sequence, with its U/V.",
+    "btn_remove": "Remove selected",
+    "add_picked_none": "Pick a point on the 2D map first.",
+    "add_picked_duplicate": "That point is already row {row} of the sequence.",
+    "tab_array": "Array",
+    "tab_motion": "Motion"
   },
   "action": {
     "ok": "Done",
@@ -903,7 +926,8 @@
       "queue_removed": "Point removed: {site}",
       "skipped": "Point skipped: {site}",
       "stopped": "Stopped; the data already written is kept.",
-      "done": "Session finished: {path}"
+      "done": "Session finished: {path}",
+      "queue_added_many": "{added} point(s) added to the capture queue, {refused} could not be added."
     },
     "recording": {
       "title": "Recording",
@@ -974,5 +998,33 @@
     "confirm_title": "Write UNITS",
     "confirm_body": "The following UNITS will be written to the controller:\n{changes}\n\nAfterwards every millimetre and degree reading, and every pose-move target, is recomputed with the new equivalent. Confirm that the platform is stopped and the mechanical ratio has been checked.",
     "confirm_rotary": "Note: UNITS for {roles} is not the calibration equivalent {cal}; the rotary axis has no angle scale at that value, so pose moves are refused until it is recalibrated."
+  },
+  "array": {
+    "mode": "Type",
+    "margin": "Margin (px)",
+    "rows": "Rows",
+    "cols": "Columns",
+    "u_pitch": "U pitch (px)",
+    "v_pitch": "V pitch (px)",
+    "centre_u": "Centre U",
+    "centre_v": "Centre V",
+    "preset": "Stage",
+    "mode_grid": "Regular grid",
+    "mode_preset": "Staged preset",
+    "serpentine": "Serpentine order",
+    "centre_from_pick": "Centre on pick",
+    "centre_from_pick_tip": "Use the point just picked on the flat map as the grid centre.",
+    "show_preview": "Preview on the map",
+    "btn_add": "Add to sequence ({count})",
+    "none": "No candidate points.",
+    "all_ok": "{total} candidates, all on the surface.",
+    "some_bad": "{total} candidates: {usable} usable, {off} off the surface, {edge} too near the edge. Only usable points can be added.",
+    "preset_hint": "Staged presets are the suggested starting layout, taken from the planning figure: confirm the hardware with stage 0, then add more. Every point is checked against the current surface; ones off it or inside the margin get a red cross and are not added. A point already in the sequence is not added twice.",
+    "preset_stage0": "Stage 0 · hardware check (1 point)",
+    "preset_stage1": "Stage 1 · calibration 3×3 (9 points)",
+    "preset_stage1_check": "Stage 1 · independent checks (4 points)",
+    "preset_stage2": "Stage 2 · more calibration (8 points)",
+    "preset_stage2_check": "Stage 2 · more checks (4 points)",
+    "added": "{added} point(s) added, {repeated} already in the sequence, {failed} could not be solved."
   }
 }

apps/autocal/config/locales/zh_CN.json

@@ -494,7 +494,18 @@
     "preview_solve_failed": "求解失败：{error}",
     "loaded": "已载入导出包：{vertices} 顶点 · {triangles} 三角面 · {extent} mm · 每单位 {scale} mm",
     "load_failed": "载入失败: {error}",
-    "picked": "已选点：残差 {residual}° · yaw {yaw}° · pitch {pitch}°"
+    "picked": "已选点：残差 {residual}° · yaw {yaw}° · pitch {pitch}°",
+    "bg_label": "底图",
+    "colour_label": "点色",
+    "bg_original": "原图",
+    "bg_gray": "灰度",
+    "bg_dim": "变暗",
+    "bg_outline": "仅轮廓",
+    "colour_yellow": "黄",
+    "colour_white": "白",
+    "colour_cyan": "青",
+    "colour_orange": "橙",
+    "colour_grey": "灰"
   },
   "sequence": {
     "title": "测试序列设计",
@@ -556,7 +567,19 @@
     "imported": "已导入序列: {name}（{count} 点）",
     "import_warnings": "导入有 {count} 项提示",
     "confirm_discard": "当前序列尚未导出，导入将替换它。是否继续？",
-    "points_hint": "坐标由网格生成并逐点校验，不接受手工输入：手工输入的坐标没有任何检查，一个错数字会毁掉整条序列。"
+    "points_hint": "坐标由网格生成并逐点校验，不接受手工输入：手工输入的坐标没有任何检查，一个错数字会毁掉整条序列。",
+    "col_u": "U (px)",
+    "col_v": "V (px)",
+    "btn_send": "送到标定页（{count}）",
+    "send_tip": "把选中的点按 U/V 加入标定采集页的点队列，并切换到该页。",
+    "send_none": "先选中带 U/V 的行。",
+    "btn_add_picked": "加入所选点",
+    "add_picked_tip": "把平面图上刚点选的点加入序列（带 U/V）。",
+    "btn_remove": "删除所选",
+    "add_picked_none": "先在平面图上点选一个点。",
+    "add_picked_duplicate": "该点已在序列第 {row} 行。",
+    "tab_array": "阵列",
+    "tab_motion": "运动参数"
   },
   "action": {
     "ok": "完成",
@@ -903,7 +926,8 @@
       "queue_removed": "已删除测点 {site}",
       "skipped": "已跳过测点 {site}",
       "stopped": "已停止，已写入的数据保留。",
-      "done": "本场标定已结束：{path}"
+      "done": "本场标定已结束：{path}",
+      "queue_added_many": "已加入 {added} 个点到标定队列，{refused} 个未能加入。"
     },
     "recording": {
       "title": "录像",
@@ -974,5 +998,33 @@
     "confirm_title": "写入 UNITS",
     "confirm_body": "将向控制器写入以下 UNITS：\n{changes}\n\n写入后，全部毫米和角度读数以及姿态移动的目标都按新当量重新计算。请确认平台已停止，并已核对机械传动比。",
     "confirm_rotary": "注意：{roles} 的 UNITS 不是标定当量 {cal}，旋转轴在该当量下没有角度标定，姿态移动会被拒绝，直到重新标定。"
+  },
+  "array": {
+    "mode": "类型",
+    "margin": "边距 (px)",
+    "rows": "行数",
+    "cols": "列数",
+    "u_pitch": "U 间距 (px)",
+    "v_pitch": "V 间距 (px)",
+    "centre_u": "中心 U",
+    "centre_v": "中心 V",
+    "preset": "阶段",
+    "mode_grid": "规则网格",
+    "mode_preset": "阶段预设",
+    "serpentine": "蛇形遍历",
+    "centre_from_pick": "取选点为中心",
+    "centre_from_pick_tip": "把平面图上刚点选的点作为网格中心。",
+    "show_preview": "在平面图上预览",
+    "btn_add": "加入序列（{count}）",
+    "none": "没有候选点。",
+    "all_ok": "{total} 个候选点，全部落在曲面内。",
+    "some_bad": "{total} 个候选点：可用 {usable}，曲面外 {off}，太靠边 {edge}。只有可用的点能加入。",
+    "preset_hint": "阶段预设是建议的起始布点，坐标取自规划图；先用阶段 0 确认硬件，再逐级加密。每个点都会按当前曲面检查，落在曲面外或边距内的会标红叉，不会被加入。已在序列里的点不会重复添加。",
+    "preset_stage0": "阶段 0 · 硬件自检（1 点）",
+    "preset_stage1": "阶段 1 · 标定 3×3（9 点）",
+    "preset_stage1_check": "阶段 1 · 独立验证（4 点）",
+    "preset_stage2": "阶段 2 · 标定加点（8 点）",
+    "preset_stage2_check": "阶段 2 · 验证加点（4 点）",
+    "added": "已加入 {added} 个点，{repeated} 个已在序列里，{failed} 个求解失败。"
   }
 }

apps/autocal/docs/sequence-format.md

@@ -101,6 +101,7 @@ to another bench's number.
 | `id` | 1-based, stable within the file; used for run progress and resume |
 | `target_mm` | where the axes go — required, with all three of `x`, `y`, `z` |
 | `sensor_mm` | where that point lands on the sensor; optional but written |
+| `uv_px` | `{u, v}`: the point's place on the flat map, in pixels from the map origin; optional (added without a version change, older files simply lack it). The capture page takes its points by U/V, so a point with `uv_px` can be sent there directly |
 | `clearance_mm` | the standoff for this point |
 | `enabled` | false = designed but deliberately skipped |
 | `note` | free text |

apps/autocal/src/orisys_autocal/array_plan.py

@@ -0,0 +1,165 @@
+"""Candidate calibration points in U/V, and the check that each one is usable.
+
+A sequence is designed on the flat map, so the natural coordinates are the map's
+own: ``U`` and ``V`` in pixels from the map origin (the same numbers the capture
+page takes and the point table shows). This module makes arrays of them and says,
+for each, whether the surface is really there. It imports no Qt, so the
+arithmetic is tested without a display.
+
+Two sources of points:
+
+* a **regular grid** around a centre, optionally walked in a serpentine so the
+  stage does not fly back across the patch after every row;
+* **staged presets** — a deliberately small first set that proves the hardware, then
+  larger sets added only once the smaller one behaves. The U/V of the presets are
+  the suggested starting layout, read off the planning figure; the check below is
+  what decides whether each one is usable on the loaded surface.
+"""
+
+from __future__ import annotations
+
+from collections.abc import Sequence
+from dataclasses import dataclass
+
+import numpy as np
+
+from .sensor.uv_flat import uv_origin
+
+#: Why a candidate is unusable. Empty for a usable one.
+OFF_SURFACE = "off_surface"
+NEAR_EDGE = "near_edge"
+
+#: Largest array one request may build; a typo in a pitch must not freeze the UI.
+MAX_POINTS = 400
+
+
+@dataclass(frozen=True)
+class Candidate:
+    """One proposed point and whether the surface supports it."""
+
+    u: int
+    v: int
+    valid: bool = True
+    reason: str = ""
+    label: str = ""
+
+
+#: Suggested layouts, ``name -> ((label, u, v), ...)``. Staged on purpose: later
+#: sets are *added* to earlier ones. The one overlap is C13, the stage-0 point, which
+#: is also the centre of the stage-1 grid; a point already in the sequence is not
+#: added twice, so adding stage 1 after stage 0 simply skips it.
+PRESETS: dict[str, tuple[tuple[str, int, int], ...]] = {
+    # Hardware check: one interior point, away from every edge.
+    "stage0": (("C13", 0, 470),),
+    # First model: a centred 3 x 3, all well inside the mapped area.
+    "stage1": (
+        ("C06", -165, 320), ("C07", 0, 320), ("C08", 165, 320),
+        ("C12", -130, 470), ("C13", 0, 470), ("C14", 130, 470),
+        ("C18", -195, 620), ("C19", 0, 620), ("C20", 195, 620),
+    ),
+    # Independent checks for stage 1: between the model's points, never on them.
+    "stage1_check": (
+        ("V06", -240, 395), ("V07", 0, 395), ("V08", 240, 395), ("V10", 0, 545),
+    ),
+    # Stage 2 additions: towards the edges and the top and bottom.
+    "stage2": (
+        ("C02", -260, 180), ("C03", 0, 180), ("C04", 260, 180),
+        ("C11", -260, 470), ("C15", 260, 470),
+        ("C22", -250, 750), ("C23", 0, 750), ("C24", 250, 750),
+    ),
+    "stage2_check": (
+        ("V03", -260, 250), ("V04", 0, 250), ("V05", 260, 250), ("V13", 0, 685),
+    ),
+}
+
+PRESET_KEYS: tuple[str, ...] = tuple(PRESETS)
+
+
+def grid_uv(
+    rows: int,
+    cols: int,
+    u_pitch: float,
+    v_pitch: float,
+    centre: tuple[float, float] = (0.0, 0.0),
+    *,
+    serpentine: bool = True,
+) -> list[tuple[int, int]]:
+    """A ``rows x cols`` grid centred on ``centre``, bottom row first.
+
+    Rows run along U. With ``serpentine`` every second row is walked backwards, so
+    the visiting order is a path with no long return strokes. An oversized request
+    raises instead of building it: the preview redraws on every keystroke.
+    """
+    rows, cols = int(rows), int(cols)
+    if rows < 1 or cols < 1:
+        return []
+    if rows * cols > MAX_POINTS:
+        raise ValueError(f"{rows} x {cols} points is more than the {MAX_POINTS} allowed")
+    points: list[tuple[int, int]] = []
+    for row in range(rows):
+        v = centre[1] + (row - (rows - 1) / 2.0) * float(v_pitch)
+        columns = [
+            centre[0] + (col - (cols - 1) / 2.0) * float(u_pitch) for col in range(cols)
+        ]
+        if serpentine and row % 2 == 1:
+            columns.reverse()
+        points.extend((int(round(u)), int(round(v))) for u in columns)
+    return points
+
+
+def preset_uv(key: str) -> list[tuple[str, int, int]]:
+    """The labelled points of one preset; an unknown name is an error."""
+    try:
+        return list(PRESETS[key])
+    except KeyError as exc:
+        raise ValueError(f"no such preset: {key!r}") from exc
+
+
+def check_candidates(
+    flat,
+    points: Sequence[tuple[int, int] | tuple[str, int, int]],
+    margin_px: int = 0,
+    *,
+    origin: tuple[int, int] | None = None,
+) -> list[Candidate]:
+    """Mark each ``(u, v)`` (or ``(label, u, v)``) usable or not on this surface.
+
+    Unusable means the pixel is not on the mapped surface, or — when a margin is
+    asked for — that the mapped area does not extend ``margin_px`` pixels around it
+    in every direction. A press near the edge lands partly off the sensor, which is
+    the thing the margin exists to avoid. With no surface loaded nothing can be
+    vouched for, so every point is reported off-surface.
+    """
+    if flat is None:
+        return [_candidate(point, False, OFF_SURFACE) for point in points]
+    covered = np.asarray(flat.face_index) >= 0
+    height, width = covered.shape
+    origin_x, origin_y = origin if origin is not None else uv_origin(flat)
+    margin = max(0, int(margin_px))
+    found: list[Candidate] = []
+    for point in points:
+        u, v = _uv(point)
+        x, y = origin_x + u, origin_y - v
+        if not (0 <= x < width and 0 <= y < height) or not covered[y, x]:
+            found.append(_candidate(point, False, OFF_SURFACE))
+            continue
+        low_x, high_x = x - margin, x + margin + 1
+        low_y, high_y = y - margin, y + margin + 1
+        inside = low_x >= 0 and low_y >= 0 and high_x <= width and high_y <= height
+        if margin and (not inside or not covered[low_y:high_y, low_x:high_x].all()):
+            found.append(_candidate(point, False, NEAR_EDGE))
+            continue
+        found.append(_candidate(point, True, ""))
+    return found
+
+
+def _uv(point) -> tuple[int, int]:
+    if len(point) == 3:
+        return int(point[1]), int(point[2])
+    return int(point[0]), int(point[1])
+
+
+def _candidate(point, valid: bool, reason: str) -> Candidate:
+    label = str(point[0]) if len(point) == 3 else ""
+    u, v = _uv(point)
+    return Candidate(u=u, v=v, valid=valid, reason=reason, label=label)

apps/autocal/src/orisys_autocal/preferences.py

@@ -275,6 +275,10 @@ def default_preferences() -> dict[str, Any]:
         #: Where the tool is, in the table frame, mm. A tool-tip offset belongs
         #: here. The bench X shift is the initial position, not this number.
         "finger_tool_xy_mm": [0.0, 3.0],
+        # How the 2D map and its dots are drawn: a grey map with yellow dots reads
+        # on the multi-coloured texture where the original does not.
+        "finger_view_background": "gray",
+        "finger_marker_colour": "yellow",
         #: Where 「回初始位」 parks the table, mm. After the power cycle the
         #: coordinate origin sits on the previous park, so this is the origin:
         #: one millimetre back in X and 15 mm back in Y from the old target.

apps/autocal/src/orisys_autocal/sequence_io.py

@@ -92,6 +92,10 @@ class SequencePoint:
     id: int
     target_mm: dict[str, float]
     sensor_mm: dict[str, float] | None = None
+    #: Where the point is on the flat map (AutoCal's U/V, pixels from the map
+    #: origin), as ``{"u": .., "v": ..}``. Optional: the capture page takes its
+    #: points by U/V, so a point that has them can be sent there without a search.
+    uv_px: dict[str, float] | None = None
     clearance_mm: float = 0.0
     enabled: bool = True
     note: str = ""
@@ -106,6 +110,8 @@ class SequencePoint:
         }
         if self.sensor_mm is not None:
             payload["sensor_mm"] = {axis: float(self.sensor_mm.get(axis, 0.0)) for axis in "xyz"}
+        if self.uv_px is not None:
+            payload["uv_px"] = {axis: float(self.uv_px.get(axis, 0.0)) for axis in "uv"}
         return payload
 
 
@@ -414,6 +420,7 @@ def _parse_points(
             if axis not in target:
                 raise SequenceFormatError(f"{where}: target_mm is missing '{axis}'")
         sensor = entry.get("sensor_mm")
+        uv = entry.get("uv_px")
         points.append(
             SequencePoint(
                 id=int(_number(entry.get("id"), index)),
@@ -423,6 +430,11 @@ def _parse_points(
                     if isinstance(sensor, dict)
                     else None
                 ),
+                uv_px=(
+                    {axis: _number(uv.get(axis), 0.0) for axis in "uv"}
+                    if isinstance(uv, dict) and "u" in uv and "v" in uv
+                    else None
+                ),
                 clearance_mm=_number(entry.get("clearance_mm"), 0.0),
                 enabled=bool(entry.get("enabled", True)),
                 note=str(entry.get("note") or ""),

apps/autocal/src/orisys_autocal/ui/array_tool.py

@@ -0,0 +1,268 @@
+"""The array tool of the sequence page: propose points on the map, see them, add them.
+
+It is a small form and nothing more. The tool turns its fields into a list of U/V
+candidates (``array_plan``) and announces it; the window checks each one against the
+loaded surface, draws them on the 2D map, and hands the verdict back through
+:meth:`ArrayTool.set_checked`. Only candidates the surface supports can be added, so
+a sequence never receives a point nothing has checked — the rule the point table's
+hint states.
+"""
+
+from __future__ import annotations
+
+from orisys_app_shared.i18n import t
+from PySide6.QtCore import Signal
+from PySide6.QtWidgets import (
+    QCheckBox,
+    QComboBox,
+    QGridLayout,
+    QHBoxLayout,
+    QLabel,
+    QPushButton,
+    QSpinBox,
+    QStackedWidget,
+    QVBoxLayout,
+    QWidget,
+)
+
+from ..array_plan import (
+    NEAR_EDGE,
+    OFF_SURFACE,
+    PRESET_KEYS,
+    Candidate,
+    grid_uv,
+    preset_uv,
+)
+
+MODES: tuple[str, ...] = ("grid", "preset")
+
+#: Defaults for a first look: a 3 x 3 centred on the middle of the patch.
+_DEFAULTS = {
+    "rows": 3, "cols": 3, "u_pitch": 130, "v_pitch": 150,
+    "centre_u": 0, "centre_v": 470, "margin": 15,
+}
+
+
+class ArrayTool(QWidget):
+    """Grid or staged-preset candidates, previewed on the map before they are added."""
+
+    #: ``(points, margin_px)``: raw candidates, to be checked against the surface.
+    #: Always sent, whether or not they are drawn: the count and the add button need
+    #: the verdict either way.
+    previewChanged = Signal(object, int)
+    #: The usable candidates, as :class:`~orisys_autocal.array_plan.Candidate`.
+    addRequested = Signal(object)
+    #: Take the point picked on the map as the grid's centre.
+    centreFromPickRequested = Signal()
+
+    def __init__(self, parent: QWidget | None = None) -> None:
+        super().__init__(parent)
+        self._checked: list[Candidate] = []
+        self._spins: dict[str, QSpinBox] = {}
+        self._labels: dict[str, QLabel] = {}
+
+        column = QVBoxLayout(self)
+        column.setContentsMargins(4, 6, 4, 4)
+        column.setSpacing(6)
+
+        top = QHBoxLayout()
+        top.setSpacing(8)
+        self.mode_combo = self._combo()
+        for mode in MODES:
+            self.mode_combo.addItem("", mode)
+        self._labels["mode"] = QLabel(self)
+        self._labels["margin"] = QLabel(self)
+        top.addWidget(self._labels["mode"])
+        top.addWidget(self.mode_combo, 1)
+        top.addWidget(self._labels["margin"])
+        top.addWidget(self._spin("margin", 0, 200), 0)
+        column.addLayout(top)
+
+        self.pages = QStackedWidget(self)
+        self.pages.addWidget(self._build_grid_page())
+        self.pages.addWidget(self._build_preset_page())
+        column.addWidget(self.pages)
+
+        self.info_label = QLabel(self)
+        self.info_label.setObjectName("statusValue")
+        self.info_label.setWordWrap(True)
+        column.addWidget(self.info_label)
+        column.addStretch(1)
+
+        buttons = QHBoxLayout()
+        buttons.setSpacing(8)
+        self.show_check = QCheckBox(self)
+        self.show_check.setChecked(True)
+        self.show_check.toggled.connect(self._emit_preview)
+        self.add_button = QPushButton(self)
+        self.add_button.setObjectName("primaryButton")
+        self.add_button.clicked.connect(self._on_add)
+        buttons.addWidget(self.show_check)
+        buttons.addStretch(1)
+        buttons.addWidget(self.add_button)
+        column.addLayout(buttons)
+
+        self.mode_combo.currentIndexChanged.connect(self._on_mode)
+        self.preset_combo.currentIndexChanged.connect(self._emit_preview)
+        self.serpentine_check.toggled.connect(self._emit_preview)
+        for spin in self._spins.values():
+            spin.valueChanged.connect(self._emit_preview)
+        self.retranslate()
+        self._sync_add()
+
+    # ------------------------------------------------------------------ widgets
+
+    def _combo(self) -> QComboBox:
+        combo = QComboBox(self)
+        combo.setObjectName("compactField")
+        combo.setFixedHeight(26)
+        return combo
+
+    def _spin(self, key: str, low: int, high: int) -> QSpinBox:
+        spin = QSpinBox(self)
+        spin.setObjectName("compactField")
+        spin.setRange(low, high)
+        spin.setValue(_DEFAULTS.get(key, 0))
+        spin.setFixedHeight(26)
+        spin.setMinimumWidth(64)
+        self._spins[key] = spin
+        return spin
+
+    def _build_grid_page(self) -> QWidget:
+        page = QWidget(self)
+        grid = QGridLayout(page)
+        grid.setContentsMargins(0, 0, 0, 0)
+        grid.setHorizontalSpacing(8)
+        grid.setVerticalSpacing(6)
+        specs = (
+            ("rows", 1, 20), ("cols", 1, 20),
+            ("u_pitch", 1, 1500), ("v_pitch", 1, 1500),
+            ("centre_u", -1500, 1500), ("centre_v", -1500, 1500),
+        )
+        for index, (key, low, high) in enumerate(specs):
+            row, side = divmod(index, 2)
+            self._labels[key] = QLabel(page)
+            grid.addWidget(self._labels[key], row, side * 2)
+            grid.addWidget(self._spin(key, low, high), row, side * 2 + 1)
+        self.serpentine_check = QCheckBox(page)
+        self.serpentine_check.setChecked(True)
+        self.centre_button = QPushButton(page)
+        self.centre_button.setProperty("rail", True)
+        self.centre_button.clicked.connect(self.centreFromPickRequested)
+        grid.addWidget(self.serpentine_check, 3, 0, 1, 2)
+        grid.addWidget(self.centre_button, 3, 2, 1, 2)
+        grid.setColumnStretch(1, 1)
+        grid.setColumnStretch(3, 1)
+        return page
+
+    def _build_preset_page(self) -> QWidget:
+        page = QWidget(self)
+        column = QVBoxLayout(page)
+        column.setContentsMargins(0, 0, 0, 0)
+        column.setSpacing(6)
+        row = QHBoxLayout()
+        self._labels["preset"] = QLabel(page)
+        self.preset_combo = self._combo()
+        for key in PRESET_KEYS:
+            self.preset_combo.addItem("", key)
+        row.addWidget(self._labels["preset"])
+        row.addWidget(self.preset_combo, 1)
+        column.addLayout(row)
+        self.preset_hint = QLabel(page)
+        self.preset_hint.setObjectName("hintLabel")
+        self.preset_hint.setWordWrap(True)
+        column.addWidget(self.preset_hint)
+        column.addStretch(1)
+        return page
+
+    # -------------------------------------------------------------------- state
+
+    @property
+    def mode(self) -> str:
+        return str(self.mode_combo.currentData() or MODES[0])
+
+    @property
+    def margin_px(self) -> int:
+        return int(self._spins["margin"].value())
+
+    def spin(self, key: str) -> QSpinBox:
+        return self._spins[key]
+
+    def set_centre(self, u: int, v: int) -> None:
+        for key, value in (("centre_u", u), ("centre_v", v)):
+            self._spins[key].setValue(int(round(value)))
+
+    def candidates(self) -> list[tuple]:
+        """The raw proposed points for the current fields, ``(u, v)`` or ``(label, u, v)``."""
+        if self.mode == "preset":
+            return preset_uv(str(self.preset_combo.currentData()))
+        return grid_uv(
+            self._spins["rows"].value(),
+            self._spins["cols"].value(),
+            self._spins["u_pitch"].value(),
+            self._spins["v_pitch"].value(),
+            (self._spins["centre_u"].value(), self._spins["centre_v"].value()),
+            serpentine=self.serpentine_check.isChecked(),
+        )
+
+    def previewing(self) -> bool:
+        return self.show_check.isChecked()
+
+    def usable(self) -> list[Candidate]:
+        return [c for c in self._checked if c.valid]
+
+    def set_checked(self, checked: list[Candidate]) -> None:
+        """The surface's verdict on the current candidates; updates the count and the button."""
+        self._checked = list(checked)
+        usable = len(self.usable())
+        off = sum(1 for c in checked if c.reason == OFF_SURFACE)
+        edge = sum(1 for c in checked if c.reason == NEAR_EDGE)
+        if not checked:
+            self.info_label.setText(t("array.none"))
+        elif not (off or edge):
+            self.info_label.setText(t("array.all_ok", total=len(checked)))
+        else:
+            self.info_label.setText(
+                t("array.some_bad", total=len(checked), usable=usable, off=off, edge=edge)
+            )
+        self._sync_add()
+
+    # ----------------------------------------------------------------- behaviour
+
+    def _on_mode(self, *_args) -> None:
+        self.pages.setCurrentIndex(MODES.index(self.mode))
+        self._emit_preview()
+
+    def _emit_preview(self, *_args) -> None:
+        try:
+            points = self.candidates()
+        except ValueError:
+            points = []
+        self.previewChanged.emit(points, self.margin_px)
+        self._sync_add()
+
+    def _on_add(self) -> None:
+        usable = self.usable()
+        if usable:
+            self.addRequested.emit(usable)
+
+    def _sync_add(self) -> None:
+        count = len(self.usable())
+        self.add_button.setEnabled(count > 0)
+        self.add_button.setText(t("array.btn_add", count=count))
+
+    # ------------------------------------------------------------- translations
+
+    def retranslate(self) -> None:
+        for key, label in self._labels.items():
+            label.setText(t(f"array.{key}"))
+        for index, mode in enumerate(MODES):
+            self.mode_combo.setItemText(index, t(f"array.mode_{mode}"))
+        for index, key in enumerate(PRESET_KEYS):
+            self.preset_combo.setItemText(index, t(f"array.preset_{key}"))
+        self.preset_hint.setText(t("array.preset_hint"))
+        self.serpentine_check.setText(t("array.serpentine"))
+        self.centre_button.setText(t("array.centre_from_pick"))
+        self.centre_button.setToolTip(t("array.centre_from_pick_tip"))
+        self.show_check.setText(t("array.show_preview"))
+        self._sync_add()

apps/autocal/src/orisys_autocal/ui/calibration_panel.py

@@ -1058,6 +1058,67 @@ class CalibrationPanel(QWidget):
         self.set_message(t("cap.message.queue_added", site=site_id))
         self._refresh()
 
+    def add_uv_points(self, uvs: list[tuple[float, float]]) -> tuple[int, int]:
+        """Queue points given by U/V, with the page's current levels, hold and repeats.
+
+        The sequence page designs the points and this is where they are taken: each
+        goes through the same solve and the same ``controller.add_point`` as a point
+        added by hand, so a sequence row cannot reach the queue by any other road.
+        Returns ``(added, refused)``; a frozen queue refuses everything at once.
+        """
+        added = refused = 0
+        try:
+            controller = self._ensure_controller()
+            levels = self._levels()
+            hold = self._hold_value()
+            existing = [row.site_id for row in controller.model().sites]
+        except ActionBlocked as exc:
+            self.set_message(t(exc.reason))
+            self._refresh()
+            return 0, len(uvs)
+        except (OSError, RuntimeError, ValueError, KeyError, TypeError) as exc:
+            self.set_message(t("calibration.error").format(detail=exc))
+            self._refresh()
+            return 0, len(uvs)
+        problem = ""
+        site_id = ""
+        for u, v in uvs:
+            try:
+                point, normal, pose, uv = self._solve_uv(float(u), float(v))
+                site_id = next_point_id(existing)
+                controller.add_point(
+                    site_id,
+                    point[0],
+                    point[1],
+                    point[2],
+                    normal,
+                    pose,
+                    levels,
+                    hold,
+                    self.repeats.value(),
+                    uv_px=uv,
+                )
+            except ActionBlocked as exc:
+                problem = t(exc.reason)
+                refused += len(uvs) - added - refused
+                break
+            except (OSError, RuntimeError, ValueError, KeyError, TypeError) as exc:
+                problem = t("calibration.error").format(detail=exc)
+                refused += 1
+                continue
+            existing.append(site_id)
+            added += 1
+        if added:
+            self._selected_site = site_id
+            self._clear_live_reach()
+            self.site_id.setText(next_point_id(existing))
+        if problem and not added:
+            self.set_message(problem)
+        else:
+            self.set_message(t("cap.message.queue_added_many", added=added, refused=refused))
+        self._refresh()
+        return added, refused
+
     def _update_point(self) -> None:
         """Retake the selected point at the current UV position.
 

apps/autocal/src/orisys_autocal/ui/sensor_panel.py

@@ -27,10 +27,11 @@ from pathlib import Path
 
 import numpy as np
 from orisys_app_shared.i18n import t
-from PySide6.QtCore import QPoint, Qt, Signal
+from PySide6.QtCore import QPointF, Qt, Signal
-from PySide6.QtGui import QColor, QImage, QPainter, QPen, QPixmap
+from PySide6.QtGui import QBrush, QColor, QImage, QPainter, QPainterPath, QPen, QPixmap
 from PySide6.QtWidgets import (
     QCheckBox,
+    QComboBox,
     QDoubleSpinBox,
     QGridLayout,
     QGroupBox,
@@ -55,6 +56,18 @@ from ..sensor.uv_flat import FlatSurface, uv_origin
 #: this is a pixel and a half — finer than the view can render anyway.
 _POINT_MATCH_MM = 0.02
 
+#: How the flat map can be drawn behind the marks, and the colours the marks can take.
+#: The texture is multi-coloured, so no single mark colour reads on all of it; the
+#: operator picks the pairing that works for the patch in front of them.
+BACKGROUNDS: tuple[str, ...] = ("original", "gray", "dim", "outline")
+MARKER_COLOURS: tuple[tuple[str, str], ...] = (
+    ("yellow", "#ffd60a"),
+    ("white", "#ffffff"),
+    ("cyan", "#32d7ff"),
+    ("orange", "#ff9f0a"),
+    ("grey", "#b8b8c0"),
+)
+
 
 class FlatSurfaceView(QLabel):
     """The flat image, clickable, with the picked pixel cross-haired.
@@ -80,6 +93,13 @@ class FlatSurfaceView(QLabel):
         self._pixmap: QPixmap | None = None
         self._marker: tuple[int, int] | None = None
         self._selected: tuple[int, int] | None = None
+        self._background = BACKGROUNDS[0]
+        self._marker_colour = QColor(MARKER_COLOURS[0][1])
+        self._sequence: list[tuple[int, int, str, bool]] = []
+        self._candidates: list[tuple[int, int, bool]] = []
+        self._show_path = True
+        #: Background name -> native-size pixmap, rebuilt when the map changes.
+        self._bases: dict[str, QPixmap] = {}
         self.setCursor(Qt.CursorShape.CrossCursor)
 
     @property
@@ -90,6 +110,7 @@ class FlatSurfaceView(QLabel):
         self._flat = flat
         self._marker = None
         self._selected = None
+        self._bases = {}
         if flat is None:
             self._pixmap = None
             self.clear()
@@ -143,55 +164,173 @@ class FlatSurfaceView(QLabel):
             return None
         return int(columns[best]), int(rows[best])
 
-    def _marked(self) -> QPixmap | None:
+    # ------------------------------------------------------------------ styling
-        """The native-size image with both markers drawn on it, or ``None``."""
+
-        if self._pixmap is None:
+    def set_background(self, mode: str) -> None:
+        """How the map itself is drawn, so the dots have something to stand out from."""
+        if mode not in BACKGROUNDS:
+            mode = BACKGROUNDS[0]
+        if mode != self._background:
+            self._background = mode
+            self._refresh()
+
+    @property
+    def background(self) -> str:
+        return self._background
+
+    def set_marker_colour(self, colour: QColor | str) -> None:
+        self._marker_colour = QColor(colour)
+        self._refresh()
+
+    @property
+    def marker_colour(self) -> QColor:
+        return QColor(self._marker_colour)
+
+    def set_sequence_points(self, points: list[tuple[int, int, str, bool]]) -> None:
+        """The sequence's points as ``(x_px, y_px, label, selected)`` on the raster."""
+        self._sequence = list(points)
+        self._refresh()
+
+    def set_candidates(self, candidates: list[tuple[int, int, bool]]) -> None:
+        """Proposed points as ``(x_px, y_px, usable)``: previewed, not yet in the list."""
+        self._candidates = list(candidates)
+        self._refresh()
+
+    def set_show_path(self, show: bool) -> None:
+        self._show_path = bool(show)
+        self._refresh()
+
+    def _base(self) -> QPixmap | None:
+        """The map in the chosen background, native size, without any marks."""
+        if self._flat is None or self._pixmap is None:
             return None
-        if self._marker is None and self._selected is None:
+        cached = self._bases.get(self._background)
-            return self._pixmap
+        if cached is not None:
-        canvas = self._pixmap.copy()
+            return cached
+        image = self._flat.image_rgb
+        if self._background == "original":
+            pixmap = self._pixmap
+        else:
+            covered = (self._flat.face_index >= 0)[..., None]
+            if self._background == "gray":
+                grey = image.astype(np.float32) @ np.array([0.299, 0.587, 0.114], np.float32)
+                shade = np.clip(grey * 0.75, 0, 255).astype(np.uint8)
+                data = np.repeat(shade[..., None], 3, axis=2)
+            elif self._background == "dim":
+                data = (image.astype(np.float32) * 0.4).astype(np.uint8)
+            else:  # "outline": the patch as a flat grey shape on near-black
+                data = np.where(covered, np.uint8(78), np.uint8(14)) * np.ones(3, np.uint8)
+            data = np.ascontiguousarray(data, dtype=np.uint8)
+            height, width = data.shape[:2]
+            qimage = QImage(data.data, width, height, 3 * width, QImage.Format.Format_RGB888)
+            pixmap = QPixmap.fromImage(qimage.copy())
+        self._bases[self._background] = pixmap
+        return pixmap
+
+    def _paint_marks(self, canvas: QPixmap, scale: float) -> None:
+        """Draw every mark on the *scaled* map, at a size that is legible on screen.
+
+        The marks used to be drawn on the native 1024-pixel image and scaled down
+        with it, so a six-pixel dot was under two pixels wide on a pane a quarter
+        the size, on top of a multi-coloured texture. Drawing after the scale keeps
+        every mark the same on-screen size whatever the pane, and each gets a dark
+        outline so it reads on any colour.
+        """
+        if not (self._sequence or self._candidates or self._marker or self._selected):
+            return
+
+        def at(x: float, y: float) -> QPointF:
+            return QPointF((x + 0.5) * scale, (y + 0.5) * scale)
+
+        colour = self._marker_colour
         painter = QPainter(canvas)
+        painter.setRenderHint(QPainter.RenderHint.Antialiasing, True)
         try:
+            if self._show_path and len(self._sequence) > 1:
+                painter.setPen(QPen(QColor(0, 0, 0, 170), 3.5))
+                for first, second in zip(self._sequence, self._sequence[1:]):
+                    painter.drawLine(at(first[0], first[1]), at(second[0], second[1]))
+                path = QColor(colour)
+                path.setAlpha(210)
+                painter.setPen(QPen(path, 1.6))
+                for first, second in zip(self._sequence, self._sequence[1:]):
+                    painter.drawLine(at(first[0], first[1]), at(second[0], second[1]))
+            for x, y, usable in self._candidates:
+                centre = at(x, y)
+                if usable:
+                    painter.setBrush(QBrush())
+                    painter.setPen(QPen(QColor(0, 0, 0, 230), 4))
+                    painter.drawEllipse(centre, 5.0, 5.0)
+                    painter.setPen(QPen(colour, 2))
+                    painter.drawEllipse(centre, 5.0, 5.0)
+                else:
+                    for width, pen_colour in ((4.5, QColor(0, 0, 0, 230)), (2.0, QColor("#ff453a"))):
+                        painter.setPen(QPen(pen_colour, width))
+                        painter.drawLine(centre + QPointF(-4, -4), centre + QPointF(4, 4))
+                        painter.drawLine(centre + QPointF(-4, 4), centre + QPointF(4, -4))
+            font = painter.font()
+            font.setPixelSize(11)
+            font.setBold(True)
+            painter.setFont(font)
+            for x, y, label, selected in self._sequence:
+                centre = at(x, y)
+                radius = 6.5 if selected else 4.5
+                painter.setPen(QPen(QColor(0, 0, 0, 235), 2.5))
+                painter.setBrush(QColor("#ffffff") if selected else colour)
+                painter.drawEllipse(centre, radius, radius)
+                if selected:
+                    painter.setPen(QPen(colour, 2))
+                    painter.setBrush(QBrush())
+                    painter.drawEllipse(centre, radius + 3.0, radius + 3.0)
+                if label:
+                    text = QPainterPath()
+                    text.addText(centre.x() + radius + 3, centre.y() - radius, font, label)
+                    painter.setBrush(QBrush())
+                    painter.setPen(QPen(QColor(0, 0, 0, 230), 3.2))
+                    painter.drawPath(text)
+                    painter.setPen(Qt.PenStyle.NoPen)
+                    painter.setBrush(QColor("#ffffff"))
+                    painter.drawPath(text)
             if self._marker is not None:
-                x, y = self._marker
+                centre = at(*self._marker)
-                painter.setPen(QPen(Qt.GlobalColor.white, 1, Qt.PenStyle.SolidLine))
+                for width, pen_colour in ((4.0, QColor(0, 0, 0, 230)), (1.6, colour)):
-                painter.drawLine(x - 8, y, x + 8, y)
+                    painter.setPen(QPen(pen_colour, width))
-                painter.drawLine(x, y - 8, x, y + 8)
+                    painter.drawLine(centre + QPointF(-9, 0), centre + QPointF(9, 0))
-                painter.setPen(QPen(Qt.GlobalColor.black, 1, Qt.PenStyle.SolidLine))
+                    painter.drawLine(centre + QPointF(0, -9), centre + QPointF(0, 9))
-                painter.drawEllipse(QPoint(x, y), 5, 5)
             if self._selected is not None:
-                x, y = self._selected
+                centre = at(*self._selected)
-                painter.setPen(QPen(QColor("#ffffff"), 2))
+                painter.setPen(QPen(QColor(0, 0, 0, 235), 4))
-                painter.setBrush(QColor("#d92d20"))
+                painter.setBrush(QBrush())
-                painter.drawEllipse(QPoint(x, y), 6, 6)
+                painter.drawEllipse(centre, 7.0, 7.0)
+                painter.setPen(QPen(QColor("#ff453a"), 2.2))
+                painter.setBrush(QColor("#ff453a"))
+                painter.drawEllipse(centre, 5.0, 5.0)
         finally:
             painter.end()
-        return canvas
 
     def _refresh(self) -> None:
-        """Scale the marked image to fit the pane and show all of it."""
+        """Scale the map to fit the pane, then draw the marks on the result."""
-        marked = self._marked()
+        base = self._base()
-        if marked is None:
+        if base is None or base.width() <= 0 or base.height() <= 0:
-            return
-        if self._flat is None or marked.width() <= 0 or marked.height() <= 0:
             return
         available_w = max(1, self.width())
         available_h = max(1, self.height())
-        scale = min(available_w / marked.width(), available_h / marked.height())
+        # Never magnify: a pane larger than the image shows it as it is.
-        # Never magnify: a 320-pixel pane showing a 1024 image should not blur it
+        scale = min(available_w / base.width(), available_h / base.height(), 1.0)
-        # up, and a pane larger than the image can centre it as-is.
-        scale = min(scale, 1.0)
         if scale >= 1.0:
-            self.setPixmap(marked)
+            shown = base.copy()
-            return
+        else:
-        self.setPixmap(
+            shown = base.scaled(
-            marked.scaled(
+                max(1, int(base.width() * scale)),
-                max(1, int(marked.width() * scale)),
+                max(1, int(base.height() * scale)),
-                max(1, int(marked.height() * scale)),
                 Qt.AspectRatioMode.KeepAspectRatio,
                 Qt.TransformationMode.SmoothTransformation,
             )
-        )
+            # The true factor after rounding to whole pixels, so marks land on
+            # the pixel they name.
+            scale = shown.width() / base.width()
+        self._paint_marks(shown, scale)
+        self.setPixmap(shown)
 
     def resizeEvent(self, event) -> None:  # noqa: N802 - Qt naming
         super().resizeEvent(event)
@@ -235,6 +374,9 @@ class FingerPanel(QGroupBox):
     #: Whether to ask before moving. Persisted; the window honours it for every
     #: pose move, including the rail's return-to-zero.
     confirmChanged = Signal(bool)
+    #: The 2D map's look changed: ``(background, marker colour name)``. Persisted by
+    #: the window; the choice is the operator's and outlives the session.
+    viewStyleChanged = Signal(str, str)
 
     def __init__(
         self,
@@ -361,6 +503,37 @@ class FingerPanel(QGroupBox):
         # that crops the UV space instead of shrinking it.
         column.addWidget(self.view, 1)
 
+        # How the map and its marks are drawn. The texture is multi-coloured, so the
+        # background and the dot colour are a pair the operator tunes by eye.
+        style = QHBoxLayout()
+        style.setContentsMargins(0, 0, 0, 0)
+        style.setSpacing(6)
+        self.bg_label = QLabel(box)
+        self.bg_label.setObjectName("hintLabel")
+        self.bg_combo = QComboBox(box)
+        self.bg_combo.setObjectName("compactField")
+        self.colour_label = QLabel(box)
+        self.colour_label.setObjectName("hintLabel")
+        self.colour_combo = QComboBox(box)
+        self.colour_combo.setObjectName("compactField")
+        for combo in (self.bg_combo, self.colour_combo):
+            combo.setFixedHeight(26)
+            combo.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Fixed)
+        for mode in BACKGROUNDS:
+            self.bg_combo.addItem("", mode)
+        for name, hex_value in MARKER_COLOURS:
+            self.colour_combo.addItem("", name)
+            self.colour_combo.setItemData(
+                self.colour_combo.count() - 1, QColor(hex_value), Qt.ItemDataRole.DecorationRole
+            )
+        self.bg_combo.currentIndexChanged.connect(self._on_view_style)
+        self.colour_combo.currentIndexChanged.connect(self._on_view_style)
+        style.addWidget(self.bg_label)
+        style.addWidget(self.bg_combo, 1)
+        style.addWidget(self.colour_label)
+        style.addWidget(self.colour_combo, 1)
+        column.addLayout(style)
+
         self.view_label = QLabel(box)
         self.view_label.setObjectName("hintLabel")
         self.view_label.setWordWrap(True)
@@ -876,6 +1049,16 @@ class FingerPanel(QGroupBox):
         self._sync_sim_button()
         self.refresh_readouts(point, normal, pose, face)
         self._refresh_path()
+        # The result stays with the views that made it. It used to be pushed into
+        # the window's global status strip, which every page shares, so a
+        # geometry detail ended up beside the connection and stop controls.
+        text = t(
+            "finger.picked",
+            residual=f"{row['residual']:.3f}",
+            yaw=f"{row['yaw']:.2f}",
+            pitch=f"{row['pitch']:.2f}",
+        )
+        self.status_label.setText(text if row["residual"] <= 0.5 else f"⚠ {text}")
         return row
 
     # ----------------------------------------------------------------- readouts
@@ -1041,7 +1224,67 @@ class FingerPanel(QGroupBox):
 
     # ------------------------------------------------------------- translations
 
+    def _on_view_style(self, *_args) -> None:
+        mode = str(self.bg_combo.currentData() or BACKGROUNDS[0])
+        name = str(self.colour_combo.currentData() or MARKER_COLOURS[0][0])
+        hex_value = dict(MARKER_COLOURS).get(name, MARKER_COLOURS[0][1])
+        self.view.set_background(mode)
+        self.view.set_marker_colour(hex_value)
+        self.viewStyleChanged.emit(mode, name)
+
+    def set_view_style(self, mode: str, colour: str) -> None:
+        """Apply a remembered look without announcing it as a change."""
+        for combo, value in ((self.bg_combo, mode), (self.colour_combo, colour)):
+            index = combo.findData(value)
+            if index >= 0:
+                combo.blockSignals(True)
+                combo.setCurrentIndex(index)
+                combo.blockSignals(False)
+        self._on_view_style_silent()
+
+    def _on_view_style_silent(self) -> None:
+        mode = str(self.bg_combo.currentData() or BACKGROUNDS[0])
+        name = str(self.colour_combo.currentData() or MARKER_COLOURS[0][0])
+        self.view.set_background(mode)
+        self.view.set_marker_colour(dict(MARKER_COLOURS).get(name, MARKER_COLOURS[0][1]))
+
+    def view_style(self) -> tuple[str, str]:
+        return (
+            str(self.bg_combo.currentData() or BACKGROUNDS[0]),
+            str(self.colour_combo.currentData() or MARKER_COLOURS[0][0]),
+        )
+
+    def solve_pixel_row(self, x: int, y: int) -> dict[str, float] | None:
+        """The pose row for a map pixel, with no effect on the picked point or the views.
+
+        The same numbers a click produces (see :meth:`handle_pick`), for callers that
+        are laying out many points at once and must not move the single picked one.
+        """
+        flat = self.view.flat
+        if flat is None:
+            return None
+        sample = flat.sample(x, y)
+        if sample is None:
+            return None
+        point, normal, _face = sample
+        origin_x, origin_y = uv_origin(flat)
+        pose = self._stack.solve(point, normal)
+        return {
+            "x": float(point[0]), "y": float(point[1]), "z": float(point[2]),
+            "X": float(pose.target_xy_mm[0]), "Y": float(pose.target_xy_mm[1]),
+            "Z": float(pose.contact_z_mm),
+            "yaw": float(pose.yaw_deg), "pitch": float(pose.pitch_deg),
+            "residual": float(pose.residual_deg),
+            "u_px": x - origin_x, "v_px": origin_y - y,
+        }
+
     def retranslate(self) -> None:
+        self.bg_label.setText(t("finger.bg_label"))
+        self.colour_label.setText(t("finger.colour_label"))
+        for index, mode in enumerate(BACKGROUNDS):
+            self.bg_combo.setItemText(index, t(f"finger.bg_{mode}"))
+        for index, (name, _hex) in enumerate(MARKER_COLOURS):
+            self.colour_combo.setItemText(index, t(f"finger.colour_{name}"))
         self.setTitle(t("finger.title"))
         self.path_label.setText(t("finger.bundle_path"))
         self.load_button.setText(t("finger.load"))

apps/autocal/src/orisys_autocal/ui/sequence_panel.py

@@ -40,6 +40,7 @@ from PySide6.QtWidgets import (
     QLabel,
     QLineEdit,
     QPushButton,
+    QTabWidget,
     QTableWidget,
     QTableWidgetItem,
     QVBoxLayout,
@@ -53,6 +54,7 @@ from ..sequence_io import (
     format_span,
     summarise,
 )
+from .array_tool import ArrayTool
 
 #: Profile fields, in form order: ``(key, locale_key, kind)``.
 #: ``kind`` is ``choice`` (a combo box) or ``number`` (a line edit).
@@ -72,7 +74,7 @@ PROFILE_FIELDS: tuple[tuple[str, str, str], ...] = (
 )
 
 #: How many rows the two-column profile form has.
-PROFILE_ROWS = (len(PROFILE_FIELDS) + 1) // 2
+PROFILE_ROWS = (len(PROFILE_FIELDS) + 2) // 3
 
 #: Point-table columns: ``(key, locale_key)``.
 #:
@@ -84,17 +86,25 @@ POINT_COLUMNS: tuple[tuple[str, str], ...] = (
     ("x", "sequence.col_x"),
     ("y", "sequence.col_y"),
     ("z", "sequence.col_z"),
+    ("u", "sequence.col_u"),
+    ("v", "sequence.col_v"),
     ("status", "sequence.col_status"),
     ("sensitivity", "sequence.col_sensitivity"),
     ("samples", "sequence.col_samples"),
 )
 
+#: Column index by key, so no code has to count columns.
+_COL = {key: index for index, (key, _locale_key) in enumerate(POINT_COLUMNS)}
+
+#: Columns whose text is centred.
+_CENTRED = ("u", "v", "status", "sensitivity", "samples")
+
 #: Editability of the point table. Positions are *generated*, not typed: a typed
 #: coordinate is one that nothing has checked against the sensor.
 _EDITABLE_POINT_COLUMNS: tuple[str, ...] = ()
 
 #: Column widths of the point table, by column index.
-_POINT_COLUMN_WIDTHS = (60, 150, 150, 150, 140, 190, 110)
+_POINT_COLUMN_WIDTHS = (50, 110, 110, 110, 100, 100, 110, 160, 100)
 
 #: Reserved controls and the phase that will fill each one.
 PENDING_CONTROLS: tuple[str, ...] = ("generate", "simulate", "dry_run")
@@ -151,6 +161,13 @@ class SequenceStep:
 class SequencePanel(QGroupBox):
     """Workflow P5: profile, preview, validation and the point list."""
 
+    #: The list changed (rows added, removed or replaced), or the selection did: the
+    #: window redraws the sequence on the 2D map from either.
+    pointsChanged = Signal()
+    #: Add the point picked on the 2D map to the list.
+    addPickedRequested = Signal()
+    #: Send the selected rows' U/V to the capture page's queue: ``[(u, v), ...]``.
+    sendToCaptureRequested = Signal(object)
     generateRequested = Signal()
     simulateRequested = Signal()
     dryRunRequested = Signal()
@@ -202,57 +219,70 @@ class SequencePanel(QGroupBox):
         box.setObjectName("groupBox")
         outer = QVBoxLayout(box)
         outer.setContentsMargins(10, 8, 10, 8)
-        outer.setSpacing(4)
+        outer.setSpacing(6)
 
         # The name is what the document is called on disk and in the export, so
         # it lives at the top of the block that defines the sequence rather than
-        # in a dialog.
+        # in a dialog. Name and note share one row: two stacked full-width rows
+        # took more height than the whole array tool below them.
         name_row = QHBoxLayout()
         name_row.setSpacing(8)
         self._name_label = QLabel(box)
         self._name_label.setObjectName("hintLabel")
         self.name_edit = QLineEdit(box)
+        self.name_edit.setObjectName("compactField")
         self.name_edit.setFixedHeight(28)
-        name_row.addWidget(self._name_label)
-        name_row.addWidget(self.name_edit, 1)
-        outer.addLayout(name_row)
-
         self._note_label = QLabel(box)
         self._note_label.setObjectName("hintLabel")
         self.note_edit = QLineEdit(box)
+        self.note_edit.setObjectName("compactField")
         self.note_edit.setFixedHeight(28)
-        outer.addWidget(self._note_label)
+        name_row.addWidget(self._name_label)
-        outer.addWidget(self.note_edit)
+        name_row.addWidget(self.name_edit, 1)
+        name_row.addWidget(self._note_label)
+        name_row.addWidget(self.note_edit, 1)
+        outer.addLayout(name_row)
 
-        grid = QGridLayout()
+        # Two pages: where the points go (the array tool) and how each is measured
-        grid.setContentsMargins(0, 0, 0, 0)
+        # (the motion parameters). The parameters are set once and then left alone,
+        # so they sit behind a tab instead of taking half the block every time.
+        self.profile_tabs = QTabWidget(box)
+        self.profile_tabs.setObjectName("innerTabs")
+        self.array_tool = ArrayTool(self.profile_tabs)
+        self.profile_tabs.addTab(self.array_tool, "")
+        params = QWidget(self.profile_tabs)
+        grid = QGridLayout(params)
+        grid.setContentsMargins(4, 8, 4, 4)
         grid.setHorizontalSpacing(10)
-        grid.setVerticalSpacing(4)
+        grid.setVerticalSpacing(6)
-        outer.addLayout(grid)
 
-        # Two fields per row: label, field, label, field. Seeing the whole profile
+        # Three label/field pairs per row, so the whole profile is visible at once
-        # at once is what lets an operator sanity-check a pitch against a depth.
+        # (that is what lets an operator sanity-check a pitch against a depth) in a
+        # third of the height two pairs per row took.
         for index, (key, _locale_key, kind) in enumerate(PROFILE_FIELDS):
-            row, side = divmod(index, 2)
+            row, side = divmod(index, 3)
             column = side * 2
-            label = QLabel(box)
+            label = QLabel(params)
             label.setObjectName("hintLabel")
             grid.addWidget(label, row, column)
             self._profile_labels.append(label)
 
             if kind == "choice":
-                field: QWidget = QComboBox(box)
+                field: QWidget = QComboBox(params)
-                field.setFixedHeight(28)
                 self._choices[key] = field  # type: ignore[assignment]
             else:
-                field = QLineEdit(box)
+                field = QLineEdit(params)
+            field.setObjectName("compactField")
             field.setFixedHeight(28)
             field.setProperty("fieldKey", key)
             grid.addWidget(field, row, column + 1)
             self._profile_fields[key] = field
 
-        grid.setColumnStretch(1, 1)
+        for column in (1, 3, 5):
-        grid.setColumnStretch(3, 1)
+            grid.setColumnStretch(column, 1)
+        grid.setRowStretch(PROFILE_ROWS, 1)
+        self.profile_tabs.addTab(params, "")
+        outer.addWidget(self.profile_tabs, 1)
         self._profile_box = box
         return box
 
@@ -392,7 +422,10 @@ class SequencePanel(QGroupBox):
 
         self.table = QTableWidget(len(_EXAMPLE_POINTS), len(POINT_COLUMNS), box)
         self.table.verticalHeader().setVisible(False)
-        self.table.setSelectionMode(QTableWidget.SelectionMode.NoSelection)
+        # Rows are selectable: a few of them are sent to the capture page, and a
+        # whole-row highlight says which ones.
+        self.table.setSelectionBehavior(QTableWidget.SelectionBehavior.SelectRows)
+        self.table.setSelectionMode(QTableWidget.SelectionMode.ExtendedSelection)
         self.table.setEditTriggers(QTableWidget.EditTrigger.NoEditTriggers)
         self.table.setAlternatingRowColors(True)
         for index, width in enumerate(_POINT_COLUMN_WIDTHS):
@@ -405,20 +438,7 @@ class SequencePanel(QGroupBox):
         self.table.setMinimumHeight(120)
 
         for row, (x, y, z) in enumerate(_EXAMPLE_POINTS):
-            values = {
+            self._write_row(row, str(row + 1), x, y, z, None, t("sequence.status_pending"))
-                0: str(row + 1),
-                1: f"{x:.3f}",
-                2: f"{y:.3f}",
-                3: f"{z:.3f}",
-                4: t("sequence.status_pending"),
-                5: "—",
-                6: "—",
-            }
-            for column_index, text in values.items():
-                item = QTableWidgetItem(text)
-                if column_index >= 4:
-                    item.setTextAlignment(Qt.AlignmentFlag.AlignCenter)
-                self.table.setItem(row, column_index, item)
 
         # The count and span line: the two numbers an operator reasons with, and
         # the only place a wrong pitch or margin shows up before a seven-minute
@@ -428,6 +448,27 @@ class SequencePanel(QGroupBox):
         self.summary_label.setWordWrap(True)
 
         column.addWidget(self.table, 1)
+
+        # What to do with the rows: take the point picked on the map, drop rows,
+        # and hand the selected ones to the capture page.
+        actions = QHBoxLayout()
+        actions.setContentsMargins(0, 0, 0, 0)
+        actions.setSpacing(8)
+        self.add_picked_button = QPushButton(box)
+        self.add_picked_button.setProperty("rail", True)
+        self.add_picked_button.clicked.connect(self.addPickedRequested)
+        self.remove_button = QPushButton(box)
+        self.remove_button.setProperty("rail", True)
+        self.remove_button.clicked.connect(self.remove_selected)
+        self.send_button = QPushButton(box)
+        self.send_button.setObjectName("primaryButton")
+        self.send_button.clicked.connect(self._on_send)
+        actions.addWidget(self.add_picked_button)
+        actions.addWidget(self.remove_button)
+        actions.addStretch(1)
+        actions.addWidget(self.send_button)
+        column.addLayout(actions)
+        self.table.itemSelectionChanged.connect(self._sync_action_buttons)
         column.addWidget(self.summary_label)
 
         self.point_hint = QLabel(box)
@@ -505,26 +546,108 @@ class SequencePanel(QGroupBox):
     def point_row_count(self) -> int:
         return self.table.rowCount()
 
-    def append_point(self, x: float, y: float, z: float, status: str = "") -> int:
+    def _write_row(
-        """Add a generated point. Used by the generator once P5 exists."""
+        self,
+        row: int,
+        index_text: str,
+        x: float,
+        y: float,
+        z: float,
+        uv: tuple[float, float] | None,
+        status: str,
+    ) -> None:
+        """Fill one row by column key, so the layout lives in one place."""
+        values = {
+            "index": index_text,
+            "x": f"{x:.3f}",
+            "y": f"{y:.3f}",
+            "z": f"{z:.3f}",
+            "u": "—" if uv is None else f"{uv[0]:.1f}",
+            "v": "—" if uv is None else f"{uv[1]:.1f}",
+            "status": status,
+            "sensitivity": "—",
+            "samples": "—",
+        }
+        for key, text in values.items():
+            item = QTableWidgetItem(text)
+            if key in _CENTRED:
+                item.setTextAlignment(Qt.AlignmentFlag.AlignCenter)
+            self.table.setItem(row, _COL[key], item)
+
+    def append_point(
+        self,
+        x: float,
+        y: float,
+        z: float,
+        status: str = "",
+        uv: tuple[float, float] | None = None,
+    ) -> int:
+        """Add a point: from the 2D map's pick, or from the generator once P5 exists."""
         row = self.table.rowCount()
         self.table.insertRow(row)
-        values = {
+        self._write_row(row, str(row + 1), x, y, z, uv, status or t("sequence.status_pending"))
-            0: str(row + 1),
+        self._dirty = True
-            1: f"{x:.3f}",
+        self.refresh_summary()
-            2: f"{y:.3f}",
+        self._sync_action_buttons()
-            3: f"{z:.3f}",
-            4: status or t("sequence.status_pending"),
-            5: "—",
-            6: "—",
-        }
-        for column, text in values.items():
-            item = QTableWidgetItem(text)
-            if column >= 4:
-                item.setTextAlignment(Qt.AlignmentFlag.AlignCenter)
-            self.table.setItem(row, column, item)
         return row
 
+    def remove_selected(self) -> int:
+        """Remove the selected rows and renumber the rest; returns how many went."""
+        rows = self.selected_rows()
+        for row in reversed(rows):
+            self.table.removeRow(row)
+        for row in range(self.table.rowCount()):
+            item = self.table.item(row, _COL["index"])
+            if item is not None:
+                item.setText(str(row + 1))
+        if rows:
+            self._dirty = True
+            self.refresh_summary()
+        self._sync_action_buttons()
+        return len(rows)
+
+    def selected_rows(self) -> list[int]:
+        return sorted({index.row() for index in self.table.selectionModel().selectedRows()})
+
+    def uv_of_row(self, row: int) -> tuple[float, float] | None:
+        """The row's U/V, or ``None`` when it has none (a placeholder or imported row)."""
+        cells = self.point_row(row)
+        try:
+            return float(cells["u"]), float(cells["v"])
+        except (TypeError, ValueError):
+            return None
+
+    def selected_uv(self) -> list[tuple[float, float]]:
+        """U/V of the selected rows that have one, in list order."""
+        found = (self.uv_of_row(row) for row in self.selected_rows())
+        return [uv for uv in found if uv is not None]
+
+    def _on_send(self) -> None:
+        uvs = self.selected_uv()
+        if uvs:
+            self.sendToCaptureRequested.emit(uvs)
+
+    def map_points(self) -> list[tuple[int, float, float, bool]]:
+        """``(row number, u, v, selected)`` for every row with a U/V, in list order."""
+        selected = set(self.selected_rows())
+        found = []
+        for row in range(self.table.rowCount()):
+            uv = self.uv_of_row(row)
+            if uv is not None:
+                found.append((row + 1, uv[0], uv[1], row in selected))
+        return found
+
+    def _sync_action_buttons(self) -> None:
+        rows = self.selected_rows()
+        self.pointsChanged.emit()
+        self.remove_button.setEnabled(bool(rows))
+        with_uv = len(self.selected_uv())
+        self.send_button.setEnabled(with_uv > 0)
+        self.send_button.setText(t("sequence.btn_send", count=with_uv))
+        self.send_button.setToolTip(
+            t("sequence.send_tip") if with_uv else t("sequence.send_none")
+        )
+
     # ----------------------------------------------------------- points & state
 
     def points(self) -> list[SequencePoint]:
@@ -536,8 +659,14 @@ class SequencePanel(QGroupBox):
                 target = {axis: float(cells[axis]) for axis in "xyz"}
             except (TypeError, ValueError):
                 continue  # a placeholder row that was never generated
+            uv = self.uv_of_row(row)
             points.append(
-                SequencePoint(id=row + 1, target_mm=target, enabled=cells["status"] != t("sequence.status_skipped"))
+                SequencePoint(
+                    id=row + 1,
+                    target_mm=target,
+                    uv_px=None if uv is None else {"u": uv[0], "v": uv[1]},
+                    enabled=cells["status"] != t("sequence.status_skipped"),
+                )
             )
         return points
 
@@ -547,22 +676,23 @@ class SequencePanel(QGroupBox):
         for point in points:
             row = self.table.rowCount()
             self.table.insertRow(row)
-            values = {
+            uv = (
-                0: str(point.id),
+                None
-                1: f"{point.target_mm.get('x', 0.0):.3f}",
+                if point.uv_px is None
-                2: f"{point.target_mm.get('y', 0.0):.3f}",
+                else (float(point.uv_px.get("u", 0.0)), float(point.uv_px.get("v", 0.0)))
-                3: f"{point.target_mm.get('z', 0.0):.3f}",
+            )
-                4: t("sequence.status_pending") if point.enabled else t("sequence.status_skipped"),
+            self._write_row(
-                5: "—",
+                row,
-                6: "—",
+                str(point.id),
-            }
+                point.target_mm.get("x", 0.0),
-            for column, text in values.items():
+                point.target_mm.get("y", 0.0),
-                item = QTableWidgetItem(text)
+                point.target_mm.get("z", 0.0),
-                if column >= 4:
+                uv,
-                    item.setTextAlignment(Qt.AlignmentFlag.AlignCenter)
+                t("sequence.status_pending") if point.enabled else t("sequence.status_skipped"),
-                self.table.setItem(row, column, item)
+            )
         self._dirty = True
         self.refresh_summary()
+        self._sync_action_buttons()
 
     @property
     def dirty(self) -> bool:
@@ -619,6 +749,9 @@ class SequencePanel(QGroupBox):
         for key, combo in self._choices.items():
             _fill_choice(combo, key)
 
+        self.profile_tabs.setTabText(0, t("sequence.tab_array"))
+        self.profile_tabs.setTabText(1, t("sequence.tab_motion"))
+        self.array_tool.retranslate()
         self._name_label.setText(t("sequence.field_name"))
         self.name_edit.setPlaceholderText(t("sequence.name_hint"))
         self._note_label.setText(t("sequence.field_note"))
@@ -639,10 +772,14 @@ class SequencePanel(QGroupBox):
 
         self.table.setHorizontalHeaderLabels([t(locale_key) for _key, locale_key in POINT_COLUMNS])
         for row in range(self.table.rowCount()):
-            item = self.table.item(row, 4)
+            item = self.table.item(row, _COL["status"])
             if item is not None and item.text() in ("", t("sequence.status_pending")):
                 item.setText(t("sequence.status_pending"))
         self.point_hint.setText(t("sequence.points_hint"))
+        self.add_picked_button.setText(t("sequence.btn_add_picked"))
+        self.add_picked_button.setToolTip(t("sequence.add_picked_tip"))
+        self.remove_button.setText(t("sequence.btn_remove"))
+        self._sync_action_buttons()
         self.refresh_summary()
 
 

apps/autocal/src/orisys_autocal/ui/window.py

@@ -56,7 +56,7 @@ from ..sensor import (
     rasterise,
     texture_path_for,
 )
-from ..sensor.uv_flat import DEFAULT_FLAT_SIZE
+from ..sensor.uv_flat import DEFAULT_FLAT_SIZE, uv_origin
 from ..sequence_io import (
     FILE_SUFFIX,
     SequenceDocument,
@@ -402,6 +402,20 @@ class AutoCalMainWindow(QMainWindow):
         self.run_bar.abortRequested.connect(self._on_run_abort)
         self.sequence_panel.exportRequested.connect(self._on_export_sequence)
         self.sequence_panel.importRequested.connect(self._on_import_sequence)
+        # The array tool proposes points, the map shows them, the table keeps them.
+        self.sequence_panel.pointsChanged.connect(self._refresh_sequence_overlay)
+        tool = self.sequence_panel.array_tool
+        tool.previewChanged.connect(self._on_array_preview)
+        tool.addRequested.connect(self._on_array_add)
+        tool.centreFromPickRequested.connect(self._on_array_centre_from_pick)
+        self.finger_panel.viewStyleChanged.connect(self._on_view_style_changed)
+        self.finger_panel.set_view_style(
+            str(self.prefs.get("finger_view_background") or "gray"),
+            str(self.prefs.get("finger_marker_colour") or "yellow"),
+        )
+        self._refresh_array_preview()
+        self.sequence_panel.addPickedRequested.connect(self._on_add_picked_to_sequence)
+        self.sequence_panel.sendToCaptureRequested.connect(self._on_send_sequence_to_capture)
         self.finger_panel.loadRequested.connect(self._on_load_bundle)
         self.finger_panel.pickRequested.connect(self._on_pick_point)
         self.finger_panel.stackChanged.connect(self._on_finger_stack_changed)
@@ -519,6 +533,9 @@ class AutoCalMainWindow(QMainWindow):
         self.finger_panel.set_bundle(bundle, flat)
         self.calibration_panel.set_flat(flat, str(path))
         self.finger_panel.set_texture_state(textured=flat.textured, path=str(texture_path or ""))
+        # A new surface changes which candidates are usable and where they sit.
+        self._refresh_array_preview()
+        self._refresh_sequence_overlay()
         self.prefs["finger_bundle_path"] = str(path)
         info = bundle.describe()
         self._report_sequence(
@@ -591,16 +608,124 @@ class AutoCalMainWindow(QMainWindow):
             # A UV gap or no bundle: the panel says which; do not imply success.
             self.statusBar().showMessage(self.finger_panel.status_label.text())
             return
-        self._report_sequence(
+        # Success is shown by the picker's own status line (see handle_pick); the
-            t(
+        # strip at the top is for the platform and for actions, not for a pick.
-                "finger.picked",
+
-                residual=f"{row['residual']:.3f}",
+    # ----------------------------------------------------------- array and map
-                yaw=f"{row['yaw']:.2f}",
+
-                pitch=f"{row['pitch']:.2f}",
+    def _map_origin(self) -> tuple[int, int] | None:
-            ),
+        flat = self.finger_panel.view.flat
-            ok=row["residual"] <= 0.5,
+        if flat is None:
+            return None
+        try:
+            return uv_origin(flat)
+        except ValueError:
+            return None
+
+    def _refresh_sequence_overlay(self) -> None:
+        """Draw the sequence's points, in order, on the 2D map."""
+        view = self.finger_panel.view
+        origin = self._map_origin()
+        if origin is None:
+            view.set_sequence_points([])
+            return
+        view.set_sequence_points(
+            [
+                (origin[0] + int(round(u)), origin[1] - int(round(v)), str(number), selected)
+                for number, u, v, selected in self.sequence_panel.map_points()
+            ]
         )
 
+    def _refresh_array_preview(self) -> None:
+        tool = self.sequence_panel.array_tool
+        try:
+            points = tool.candidates()
+        except ValueError:
+            points = []
+        self._on_array_preview(points, tool.margin_px)
+
+    def _on_array_preview(self, points: object, margin: int) -> None:
+        """Check the tool's candidates against the surface and draw the verdict."""
+        from ..array_plan import check_candidates
+
+        tool = self.sequence_panel.array_tool
+        view = self.finger_panel.view
+        try:
+            checked = check_candidates(view.flat, list(points), margin)  # type: ignore[call-overload]
+        except ValueError:
+            checked = []
+        tool.set_checked(checked)
+        origin = self._map_origin()
+        if origin is None or not tool.previewing():
+            view.set_candidates([])
+            return
+        view.set_candidates(
+            [(origin[0] + c.u, origin[1] - c.v, c.valid) for c in checked]
+        )
+
+    def _on_array_add(self, candidates: object) -> None:
+        """Add the usable candidates, each solved on the surface, skipping repeats."""
+        origin = self._map_origin()
+        if origin is None:
+            return
+        added = repeated = failed = 0
+        for candidate in list(candidates):  # type: ignore[call-overload]
+            uv = (float(candidate.u), float(candidate.v))
+            if any(
+                existing is not None
+                and abs(existing[0] - uv[0]) < 0.5
+                and abs(existing[1] - uv[1]) < 0.5
+                for existing in (
+                    self.sequence_panel.uv_of_row(i)
+                    for i in range(self.sequence_panel.point_row_count())
+                )
+            ):
+                repeated += 1
+                continue
+            row = self.finger_panel.solve_pixel_row(origin[0] + candidate.u, origin[1] - candidate.v)
+            if row is None:
+                failed += 1
+                continue
+            self.sequence_panel.append_point(
+                row["X"], row["Y"], row["Z"], uv=(row["u_px"], row["v_px"])
+            )
+            added += 1
+        self.statusBar().showMessage(
+            t("array.added", added=added, repeated=repeated, failed=failed)
+        )
+
+    def _on_array_centre_from_pick(self) -> None:
+        picked = self.finger_panel.points()
+        if not picked:
+            self.statusBar().showMessage(t("sequence.add_picked_none"))
+            return
+        self.sequence_panel.array_tool.set_centre(picked[0]["u_px"], picked[0]["v_px"])
+
+    def _on_view_style_changed(self, background: str, colour: str) -> None:
+        self.prefs["finger_view_background"] = background
+        self.prefs["finger_marker_colour"] = colour
+
+    def _on_add_picked_to_sequence(self) -> None:
+        """Append the point picked on the 2D map to the sequence, with its U/V."""
+        picked = self.finger_panel.points()
+        if not picked:
+            self.statusBar().showMessage(t("sequence.add_picked_none"))
+            return
+        row = picked[0]
+        uv = (float(row["u_px"]), float(row["v_px"]))
+        for index in range(self.sequence_panel.point_row_count()):
+            existing = self.sequence_panel.uv_of_row(index)
+            if existing and abs(existing[0] - uv[0]) < 0.5 and abs(existing[1] - uv[1]) < 0.5:
+                self.statusBar().showMessage(t("sequence.add_picked_duplicate", row=index + 1))
+                return
+        self.sequence_panel.append_point(row["X"], row["Y"], row["Z"], uv=uv)
+
+    def _on_send_sequence_to_capture(self, uvs: object) -> None:
+        """Queue the selected sequence points on the capture page, and show it."""
+        added, _refused = self.calibration_panel.add_uv_points(list(uvs))  # type: ignore[arg-type]
+        if added:
+            self.workspace.set_current_key("sensor")
+
     def _on_finger_stack_changed(self) -> None:
         """The mounting pose, the tool position or the limits moved.
 

apps/autocal/src/orisys_autocal/ui/workspace.py

@@ -23,12 +23,12 @@ from .sequence_panel import SequencePanel
 from .record_overview_dialog import RecordOverviewPage
 
 #: Tab identity -> locale key for its label. Order is the display order, and it
-#: follows the work: commission the axes, describe the sequence, watch the
+#: follows the work: commission the axes, set up the geometry and mounting, design
-#: sensor, capture data, then review calibration records.
+#: the sequence against it, watch the sensor, capture data, then review records.
 TABS: tuple[tuple[str, str], ...] = (
     ("axes", "workspace.tab_axes"),
-    ("sequence", "workspace.tab_sequence"),
     ("finger", "workspace.tab_finger"),
+    ("sequence", "workspace.tab_sequence"),
     ("sensor", "workspace.tab_sensor"),
     ("records", "workspace.tab_records"),
 )

apps/autocal/tests/test_array_plan.py

@@ -0,0 +1,88 @@
+"""Candidate arrays on the flat map: the grid, the presets and the on-surface check."""
+
+from __future__ import annotations
+
+from types import SimpleNamespace
+
+import numpy as np
+import pytest
+from orisys_autocal import array_plan
+from orisys_autocal.array_plan import (
+    NEAR_EDGE,
+    OFF_SURFACE,
+    PRESETS,
+    check_candidates,
+    grid_uv,
+    preset_uv,
+)
+
+
+def _flat(width: int = 200, height: int = 200, hole: tuple[int, int, int, int] | None = None):
+    """A fully covered raster, optionally with a rectangular hole (x0, y0, x1, y1)."""
+    covered = np.ones((height, width), dtype=np.int32)
+    if hole:
+        x0, y0, x1, y1 = hole
+        covered[y0:y1, x0:x1] = -1
+    return SimpleNamespace(face_index=covered, width=width, height=height)
+
+
+def test_a_grid_is_centred_and_bottom_row_first():
+    points = grid_uv(2, 3, 10, 20, centre=(0, 100), serpentine=False)
+    assert points == [(-10, 90), (0, 90), (10, 90), (-10, 110), (0, 110), (10, 110)]
+
+
+def test_a_serpentine_walks_every_second_row_backwards():
+    points = grid_uv(2, 3, 10, 20, centre=(0, 100), serpentine=True)
+    assert points[3:] == [(10, 110), (0, 110), (-10, 110)]
+
+
+def test_an_empty_or_oversized_grid():
+    assert grid_uv(0, 3, 10, 10) == []
+    with pytest.raises(ValueError, match="more than"):
+        grid_uv(30, 30, 1, 1)
+
+
+def test_presets_overlap_only_at_the_hardware_check_point():
+    labels = [label for key in PRESETS for label, _u, _v in PRESETS[key]]
+    assert sorted(label for label in set(labels) if labels.count(label) > 1) == ["C13"]
+    # The first-model grid is centred on the hardware-check point.
+    assert ("C13", 0, 470) in PRESETS["stage1"]
+    assert ("C13", 0, 470) in PRESETS["stage0"]
+    assert preset_uv("stage0") == [("C13", 0, 470)]
+    with pytest.raises(ValueError):
+        preset_uv("nope")
+    assert array_plan.PRESET_KEYS[0] == "stage0"
+
+
+def test_a_point_on_the_surface_is_valid_and_off_it_is_not():
+    flat = _flat(hole=(40, 40, 60, 60))
+    origin = (100, 150)  # raster (x, y) = (100 + u, 150 - v)
+    result = check_candidates(flat, [(0, 100), (-50, 100)], origin=origin)
+    assert [c.valid for c in result] == [True, False]
+    assert result[1].reason == OFF_SURFACE  # raster (50, 50) is in the hole
+
+
+def test_outside_the_raster_is_off_surface_not_an_error():
+    result = check_candidates(_flat(), [(900, 900)], origin=(100, 150))
+    assert result[0].valid is False and result[0].reason == OFF_SURFACE
+
+
+def test_a_margin_rejects_points_too_close_to_a_hole_or_the_border():
+    flat = _flat(hole=(100, 60, 110, 70))
+    origin = (100, 150)
+    # raster (100, 75): five pixels below the hole's bottom edge.
+    near = check_candidates(flat, [(0, 75)], margin_px=8, origin=origin)[0]
+    far = check_candidates(flat, [(0, 75)], margin_px=3, origin=origin)[0]
+    assert (near.valid, near.reason) == (False, NEAR_EDGE)
+    assert far.valid
+    # The raster border counts as an edge.
+    assert check_candidates(flat, [(-98, 100)], margin_px=5, origin=origin)[0].reason == NEAR_EDGE
+
+
+def test_labels_survive_the_check_and_no_surface_vouches_for_nothing():
+    flat = _flat()
+    kept = check_candidates(flat, [("C13", 0, 100)], origin=(100, 150))[0]
+    assert kept.label == "C13" and kept.valid
+    none = check_candidates(None, [("C13", 0, 100), (1, 2)])
+    assert [c.valid for c in none] == [False, False]
+    assert none[0].label == "C13" and none[1].label == ""

apps/autocal/tests/test_array_tool.py

@@ -0,0 +1,127 @@
+"""The array tool and the 2D map's look: what the operator sees and what the tool offers."""
+
+from __future__ import annotations
+
+import numpy as np
+from orisys_app_shared.i18n import t
+from orisys_autocal.array_plan import Candidate
+from orisys_autocal.ui.sensor_panel import FlatSurfaceView
+from PySide6.QtGui import QColor
+
+
+def _synthetic_flat(size: int = 64):
+    from orisys_autocal.sensor.uv_flat import FlatSurface
+
+    image = np.zeros((size, size, 3), dtype=np.uint8)
+    image[..., 2] = 200  # a plain blue map: any yellow on it is a mark
+    return FlatSurface(
+        size_hw=(size, size),
+        image_rgb=image,
+        positions_mm=np.zeros((size, size, 3)),
+        normals=np.tile(np.array([0.0, 0.0, 1.0]), (size, size, 1)),
+        face_index=np.zeros((size, size), dtype=np.int32),
+        uv_min=(0.0, 0.0),
+        uv_max=(1.0, 1.0),
+    )
+
+
+def test_marks_stay_visible_when_the_map_is_scaled_down(qt_app):
+    view = FlatSurfaceView()
+    view.resize(32, 32)  # half the map's size
+    view.set_flat(_synthetic_flat(64))
+    view.set_marker_colour("#ffd60a")
+    view.set_sequence_points([(32, 32, "", False)])
+    shown = view.pixmap().toImage()
+    centre = QColor(shown.pixel(shown.width() // 2, shown.height() // 2))
+    # The mark is drawn after the scale, so its colour is at the centre of the
+    # shown image instead of being smeared into the blue by the downscale.
+    assert centre.red() > 220 and centre.green() > 180 and centre.blue() < 80
+
+
+def test_the_background_can_be_changed_and_marks_survive_it(qt_app):
+    view = FlatSurfaceView()
+    view.resize(64, 64)
+    view.set_flat(_synthetic_flat(64))
+    before = QColor(view.pixmap().toImage().pixel(2, 2))
+    for mode in ("gray", "dim", "outline"):
+        view.set_background(mode)
+        after = QColor(view.pixmap().toImage().pixel(2, 2))
+        assert after != before, mode
+        assert view.background == mode
+    view.set_background("nonsense")
+    assert view.background == "original"
+
+
+def test_unusable_candidates_are_drawn_apart_from_usable_ones(qt_app):
+    view = FlatSurfaceView()
+    view.resize(64, 64)
+    view.set_flat(_synthetic_flat(64))
+    view.set_marker_colour("#ffd60a")
+    view.set_candidates([(32, 32, False)])
+    shown = view.pixmap().toImage()
+    red_pixels = sum(
+        1
+        for x in range(24, 41)
+        for y in range(24, 41)
+        if QColor(shown.pixel(x, y)).red() > 200 and QColor(shown.pixel(x, y)).green() < 110
+    )
+    assert red_pixels > 0
+
+
+def test_the_look_is_chosen_on_the_page_and_reported(make_window):
+    window = make_window()
+    panel = window.finger_panel
+    seen: list[tuple[str, str]] = []
+    panel.viewStyleChanged.connect(lambda mode, colour: seen.append((mode, colour)))
+    panel.bg_combo.setCurrentIndex(panel.bg_combo.findData("dim"))
+    panel.colour_combo.setCurrentIndex(panel.colour_combo.findData("white"))
+    assert panel.view_style() == ("dim", "white")
+    assert seen[-1] == ("dim", "white")
+    assert window.prefs["finger_view_background"] == "dim"
+    assert panel.view.marker_colour == QColor("#ffffff")
+    window.close()
+
+
+def test_the_grid_has_rows_times_columns_candidates_and_follows_its_fields(make_window):
+    window = make_window()
+    tool = window.sequence_panel.array_tool
+    assert len(tool.candidates()) == 9
+    tool.spin("rows").setValue(2)
+    tool.spin("cols").setValue(5)
+    assert len(tool.candidates()) == 10
+    tool.mode_combo.setCurrentIndex(tool.mode_combo.findData("preset"))
+    assert tool.mode == "preset"
+    tool.preset_combo.setCurrentIndex(tool.preset_combo.findData("stage0"))
+    assert tool.candidates() == [("C13", 0, 470)]
+    window.close()
+
+
+def test_only_usable_candidates_can_be_added(make_window):
+    window = make_window()
+    tool = window.sequence_panel.array_tool
+    added: list = []
+    tool.addRequested.connect(added.append)
+    tool.set_checked([Candidate(0, 0, False, "off_surface")])
+    assert not tool.add_button.isEnabled()
+    tool.set_checked([Candidate(0, 0, True), Candidate(5, 5, False, "near_edge")])
+    assert tool.add_button.isEnabled()
+    assert tool.add_button.text() == t("array.btn_add", count=1)
+    tool.add_button.click()
+    assert [c.u for c in added[0]] == [0]
+    window.close()
+
+
+def test_adding_candidates_skips_a_point_already_in_the_sequence(make_window, monkeypatch):
+    window = make_window()
+    panel = window.sequence_panel
+    monkeypatch.setattr(window, "_map_origin", lambda: (100, 150))
+    monkeypatch.setattr(
+        window.finger_panel,
+        "solve_pixel_row",
+        lambda x, y: {"X": 1.0, "Y": 2.0, "Z": 3.0, "u_px": x - 100.0, "v_px": 150.0 - y},
+    )
+    before = panel.point_row_count()
+    window._on_array_add([Candidate(10, 20), Candidate(30, 40)])  # noqa: SLF001
+    window._on_array_add([Candidate(10, 20), Candidate(50, 60)])  # noqa: SLF001
+    assert panel.point_row_count() == before + 3
+    window.close()

apps/autocal/tests/test_record_overview.py

@@ -188,7 +188,7 @@ def test_calibration_review_action_opens_records_tab(make_window, overview_sessi
     root, _, _ = overview_session
     monkeypatch.setattr(QFileDialog, "getExistingDirectory", lambda *args: str(root))
     window = make_window()
-    assert window.workspace.page_keys() == ["axes", "sequence", "finger", "sensor", "records"]
+    assert window.workspace.page_keys() == ["axes", "finger", "sequence", "sensor", "records"]
     window.calibration_panel.review_button.click()
     assert window.workspace.current_key() == "records"
     page = window.workspace.page("records")

apps/autocal/tests/test_sequence_to_capture.py

@@ -0,0 +1,95 @@
+"""Sequence rows with U/V, the buttons that act on them, and the tab order."""
+
+from __future__ import annotations
+
+from orisys_app_shared.i18n import t
+
+
+def test_the_geometry_tab_comes_before_the_sequence_tab(make_window):
+    window = make_window()
+    assert window.workspace.page_keys() == ["axes", "finger", "sequence", "sensor", "records"]
+    window.close()
+
+
+def test_the_point_table_shows_u_and_v(make_window):
+    window = make_window()
+    panel = window.sequence_panel
+    keys = panel.column_keys()
+    assert keys.index("u") == keys.index("z") + 1 and keys.index("v") == keys.index("u") + 1
+    row = panel.append_point(1.0, 2.0, 3.0, uv=(-130.0, 470.0))
+    cells = panel.point_row(row)
+    assert (cells["u"], cells["v"]) == ("-130.0", "470.0")
+    # The placeholder rows have none, and say so.
+    assert panel.point_row(0)["u"] == "—"
+    assert panel.uv_of_row(0) is None
+    assert panel.uv_of_row(row) == (-130.0, 470.0)
+    window.close()
+
+
+def test_send_is_off_until_a_row_with_uv_is_selected(make_window):
+    window = make_window()
+    panel = window.sequence_panel
+    row = panel.append_point(1.0, 2.0, 3.0, uv=(10.0, 20.0))
+    assert not panel.send_button.isEnabled()
+    panel.table.selectRow(0)  # a placeholder without U/V
+    assert not panel.send_button.isEnabled()
+    panel.table.selectRow(row)
+    assert panel.send_button.isEnabled()
+    assert panel.send_button.text() == t("sequence.btn_send", count=1)
+    window.close()
+
+
+def test_sending_emits_the_selected_uv_and_removing_renumbers(make_window):
+    window = make_window()
+    panel = window.sequence_panel
+    first = panel.append_point(1.0, 0.0, 0.0, uv=(10.0, 20.0))
+    second = panel.append_point(2.0, 0.0, 0.0, uv=(30.0, 40.0))
+    sent: list = []
+    panel.sendToCaptureRequested.connect(sent.append)
+    panel.table.selectRow(second)
+    panel.send_button.click()
+    assert sent == [[(30.0, 40.0)]]
+
+    panel.table.selectRow(first)
+    assert panel.remove_selected() == 1
+    assert panel.point_row(panel.point_row_count() - 1)["index"] == str(panel.point_row_count())
+    window.close()
+
+
+def test_a_picked_point_is_added_once_with_its_uv(make_window):
+    window = make_window()
+    panel = window.sequence_panel
+    window.finger_panel._point = {  # noqa: SLF001 - stands in for a click on a real surface
+        "X": 1.5, "Y": 2.5, "Z": 12.4, "u_px": -130.0, "v_px": 470.0,
+    }
+    before = panel.point_row_count()
+    window._on_add_picked_to_sequence()  # noqa: SLF001
+    window._on_add_picked_to_sequence()  # noqa: SLF001 - the same point again
+    assert panel.point_row_count() == before + 1
+    assert panel.uv_of_row(before) == (-130.0, 470.0)
+    window.close()
+
+
+def test_sending_to_capture_queues_the_points_and_opens_that_page(make_window, monkeypatch):
+    window = make_window()
+    calls: list = []
+    monkeypatch.setattr(
+        window.calibration_panel, "add_uv_points", lambda uvs: calls.append(uvs) or (len(uvs), 0)
+    )
+    window.workspace.set_current_key("sequence")
+    window._on_send_sequence_to_capture([(1.0, 2.0)])  # noqa: SLF001
+    assert calls == [[(1.0, 2.0)]]
+    assert window.workspace.current_key() == "sensor"
+    window.close()
+
+
+def test_a_pick_reports_in_the_picker_not_in_the_global_strip(make_window):
+    window = make_window()
+    strip_before = window.status_strip.last_action_text() if hasattr(
+        window.status_strip, "last_action_text"
+    ) else None
+    window._on_pick_point(1, 1)  # noqa: SLF001 - no bundle: the picker says why
+    assert window.finger_panel.status_label.text() == t("finger.no_bundle")
+    if strip_before is not None:
+        assert window.status_strip.last_action_text() == strip_before
+    window.close()

apps/autocal/tests/test_sequence_uv.py

@@ -0,0 +1,47 @@
+"""U/V on sequence points: the optional field and the way it travels in a document."""
+
+from __future__ import annotations
+
+import json
+
+from orisys_autocal.sequence_io import SequencePoint, from_document, to_document
+
+PROFILE = {"mode": "plane", "pitch_mm": 2.0, "repeats": 1}
+
+
+def _round_trip(points):
+    document = to_document(profile=PROFILE, points=points)
+    # Through JSON text, as a file would carry it.
+    return from_document(json.loads(json.dumps(document)), current_profile=PROFILE)
+
+
+def test_uv_survives_a_round_trip():
+    point = SequencePoint(
+        id=1, target_mm={"x": 1.0, "y": 2.0, "z": 3.0}, uv_px={"u": -130.0, "v": 470.5}
+    )
+    back = _round_trip([point]).points[0]
+    assert back.uv_px == {"u": -130.0, "v": 470.5}
+
+
+def test_a_point_without_uv_stays_without_it():
+    point = SequencePoint(id=1, target_mm={"x": 1.0, "y": 2.0, "z": 3.0})
+    document = to_document(profile=PROFILE, points=[point])
+    assert "uv_px" not in document["points"][0]
+    assert _round_trip([point]).points[0].uv_px is None
+
+
+def test_an_older_file_with_no_uv_still_loads():
+    document = to_document(
+        profile=PROFILE,
+        points=[SequencePoint(id=1, target_mm={"x": 0.0, "y": 0.0, "z": 12.4})],
+    )
+    assert from_document(document, current_profile=PROFILE).points[0].uv_px is None
+
+
+def test_a_half_written_uv_is_ignored_rather_than_half_used():
+    document = to_document(
+        profile=PROFILE,
+        points=[SequencePoint(id=1, target_mm={"x": 0.0, "y": 0.0, "z": 12.4})],
+    )
+    document["points"][0]["uv_px"] = {"u": 5.0}
+    assert from_document(document, current_profile=PROFILE).points[0].uv_px is None