feat: 🎸 Add support for POINT and OPEN_PLANAR for RT

* feat: 🎸 Add support for POINT and OPEN_PLANAR for RT

extensions/dicom-rt/src/loadRTStruct.js

@@ -76,21 +76,15 @@ export default async function loadRTStruct(
 
     const isSupported = false;
 
-    for (let c = 0; c < ContourSequence.length; c++) {
+    const ContourSequenceArray = _toArray(ContourSequence);
+
+    for (let c = 0; c < ContourSequenceArray.length; c++) {
       const {
         ContourImageSequence,
         ContourData,
         NumberOfContourPoints,
         ContourGeometricType,
-      } = ContourSequence[c];
+      } = ContourSequenceArray[c];
-
-      if (ContourGeometricType !== 'CLOSED_PLANAR') {
-        // TODO: Do we want to visualise types other than closed planar?
-        // We could easily do open planar and point.
-        continue;
-      }
-
-      isSupported = true;
 
       const sopInstanceUID = ContourImageSequence.ReferencedSOPInstanceUID;
       const imageId = _getImageId(imageIdSopInstanceUidPairs, sopInstanceUID);
@@ -102,6 +96,13 @@ export default async function loadRTStruct(
 
       const imagePlane = cornerstone.metaData.get('imagePlaneModule', imageId);
       const points = [];
+      let measurementData;
+
+      switch (ContourGeometricType) {
+        case 'CLOSED_PLANAR':
+        case 'OPEN_PLANAR':
+        case 'POINT':
+          isSupported = true;
 
           for (let p = 0; p < NumberOfContourPoints * 3; p += 3) {
             points.push({
@@ -113,15 +114,20 @@ export default async function loadRTStruct(
 
           transformPointsToImagePlane(points, imagePlane);
 
-      const measurementData = {
+          measurementData = {
             handles: {
               points,
             },
+            type: ContourGeometricType,
             structureSetSeriesInstanceUid: rtStructDataset.SeriesInstanceUID,
             ROINumber: ReferencedROINumber,
           };
 
           imageIdSpecificToolData.push(measurementData);
+          break;
+        default:
+          continue;
+      }
     }
 
     _setROIContourMetadata(
@@ -314,3 +320,7 @@ function _getImageIdSopInstanceUidPairsForDisplaySet(
     };
   });
 }
+
+function _toArray(objOrArray) {
+  return Array.isArray(objOrArray) ? objOrArray : [objOrArray];
+}

extensions/dicom-rt/src/tools/RTStructDisplayTool.js

@@ -4,6 +4,7 @@ import TOOL_NAMES from '../utils/toolNames';
 
 // Cornerstone 3rd party dev kit imports
 const draw = importInternal('drawing/draw');
+const drawCircle = importInternal('drawing/drawCircle');
 const drawJoinedLines = importInternal('drawing/drawJoinedLines');
 const getNewContext = importInternal('drawing/getNewContext');
 const BaseTool = importInternal('base/BaseTool');
@@ -74,20 +75,50 @@ export default class RTStructDisplayTool extends BaseTool {
         colorArray[2]
       },${opacity})`;
 
-      lineWidth;
+      switch (data.type) {
+        case 'CLOSED_PLANAR':
+          this._renderClosedPlanar(context, eventData.element, points, {
+            color,
+            lineWidth,
+          });
+          break;
+        case 'POINT':
+          this._renderPoint(context, eventData.element, points, {
+            color,
+            lineWidth,
+          });
+          break;
+        case 'OPEN_PLANAR':
+          this._renderOpenPlanar(context, eventData.element, points, {
+            color,
+            lineWidth,
+          });
+          break;
+      }
+    }
+  }
 
+  _renderClosedPlanar(context, element, points, options) {
     draw(context, context => {
       drawJoinedLines(
         context,
-          eventData.element,
+        element,
         points[points.length - 1],
         points,
-          {
+        options
-            color,
-            lineWidth,
-          }
       );
     });
   }
+
+  _renderPoint(context, element, points, options) {
+    draw(context, context => {
+      drawCircle(context, element, points[0], 3, options);
+    });
+  }
+
+  _renderOpenPlanar(context, element, points, options) {
+    draw(context, context => {
+      drawJoinedLines(context, element, points[0], points, options);
+    });
   }
 }