Original Upstream PR: OHIF#5858

New point tool for scoord3d points:

Context

Fixes #107

Improves DICOM SR annotation visualization. Per maintainer feedback: create sub-types of Probe and RectangleROI with custom configuration rather than modifying base tools. SRPoint and SRRectangleROI show the semantic label (e.g. "Lesion" from Finding concept) instead of intensity/coordinates or area/stats, and are used only for SR hydration—they do not replace Probe/RectangleROI in the toolbar.

Client feedback addressed:

• Point annotations (Probe): Show label instead of intensity/coordinates; render as compact cross (plus) marker per medical imaging convention; make annotations locked (non-movable).
• Bounding box annotations (RectangleROI): Show label matching right panel; area/intensity stats off by default; make annotations locked.

Changes & Results

New SR subtypes

• SRPoint – sub-type of Probe; custom SRPointTool renders a compact cross marker; getSRPointTextLines returns only the label.
• SRRectangleROI – sub-type of RectangleROI; getSRRectangleROITextLines returns only the label.

Files added

• extensions/cornerstone-dicom-sr/src/tools/SRPointTool.ts – extends ProbeTool with custom renderAnnotation that draws a cross (plus) via drawPath; compact size (6px), reduced text padding.
• extensions/cornerstone-dicom-sr/src/utils/srToolGetTextLines.ts – getTextLines implementations for SR subtypes.

Files modified

• extensions/cornerstone-dicom-sr/src/tools/toolNames.ts – added SRPoint, SRRectangleROI.
• extensions/cornerstone-dicom-sr/src/init.ts – register SRPointTool and SRRectangleROI tool instances with getTextLines; dashed line styles.
• extensions/cornerstone-dicom-sr/src/utils/hydrateStructuredReport.ts – use SRPoint/SRRectangleROI as toolNameForRendering when hydrating Probe/RectangleROI; always lock hydrated annotations.
• extensions/cornerstone-dicom-sr/src/tools/DICOMSRDisplayTool.ts – renderPoint draws cross via drawPath; reduced text box padding (6px).
• extensions/cornerstone-dicom-sr/src/utils/addSRAnnotation.ts – set isLocked: true and call locking.setAnnotationLocked() for preview annotations.
• extensions/cornerstone-dicom-sr/src/utils/getLabelFromDCMJSImportedToolData.js – fallback to finding.CodeMeaning for standard DICOM codes (e.g. "Lesion").
• modes/basic/src/initToolGroups.ts – add SRPoint, SRRectangleROI as passive tools (default, MPR, SRToolGroup).
• modes/basic-test-mode/src/initToolGroups.ts – same.
• modes/usAnnotation/src/initToolGroups.js – same.
• extensions/cornerstone/src/utils/measurementServiceMappings/measurementServiceMappingsFactory.ts – SRPoint → POINT, SRRectangleROI → RECTANGLE.
• extensions/cornerstone/src/initMeasurementService.ts – add SRPoint, SRRectangleROI to supported tools.
• extensions/cornerstone/src/utils/measurementServiceMappings/constants/supportedTools.js – add SRPoint, SRRectangleROI.

Design decisions

• Probe and RectangleROI remain in the toolbar; SRPoint and SRRectangleROI are passive tools for hydration display only.
• Base ProbeTool and RectangleROITool unchanged; only subtypes added.
• Point markers use cross (plus) shape per medical imaging convention (e.g. 3D Slicer Cross2D); compact size and reduced padding for minimal dead space.

Testing

1. Load a study with DICOM SR measurements (SCOORD point and/or SCOORD rectangle).
2. Hydrate the SR display set.
3. Verify point annotations show label (e.g. "Lesion") and a compact cross marker instead of intensity/coordinates.
4. Verify rectangle annotations show label instead of area/intensity stats.
5. Verify all SR annotations are locked (non-movable).
6. Verify Probe and RectangleROI still appear and work in the toolbar for user-created annotations.

E2E snapshots may need regeneration for Scoord3dProbe, ScoordRectangle:

cd Viewers && cross-env TEST_ENV=true npx playwright test tests/Scoord3dProbe.spec.ts tests/ScoordRectangle.spec.ts --update-snapshots

Before: Point annotations showed intensity/coordinates; rectangle showed area/stats.
After: Point annotations show label + compact cross marker; rectangle shows label only; all SR annotations locked.

Checklist

PR

• My Pull Request title is descriptive, accurate and follows the
  semantic-release format and guidelines.

Suggested PR title: feat(cornerstone-dicom-sr): add SRPoint and SRRectangleROI subtypes for label-only SR hydration with cross markers

Code

• My code has been well-documented (function documentation, inline comments,
  etc.)

Public Documentation Updates

• The documentation page has been updated as necessary for any public API
  additions or removals. (N/A – internal extension tools only)

Tested Environment

• OS: macOS 14.x (darwin 24.6.0)
• Node version: 18.x / 20.x
• Browser: Chrome (latest), Safari (latest)