feat(overlayPlaneMetadata): Add metadata provider paths for DICOM Ove…

…rlays (#240) * DICOM Overlays Adds 'overlayPlaneModule' type returning an array of DICOM overlays. This array is then added the 'overlays' propertry of the image. This is then read by the overlays tool see - [cornerstonejs/cornerstoneTools#788](cornerstonejs/cornerstoneTools#809) see issue [cornerstonejs/cornerstoneTools#780](cornerstonejs/cornerstoneTools#780) see DICOM overlays standard - http://dicom.nema.org/dicom/2013/output/chtml/part03/sect_C.9.html * DICOM Overlays Adds 'overlayPlaneModule' type returning an array of DICOM overlays. This array is then added the 'overlays' propertry of the image. This is then read by the overlays tool see - [cornerstonejs/cornerstoneTools#788](cornerstonejs/cornerstoneTools#809) see issue [cornerstonejs/cornerstoneTools#780](cornerstonejs/cornerstoneTools#780) see DICOM overlays standard - http://dicom.nema.org/dicom/2013/output/chtml/part03/sect_C.9.html
cornerstonejs · Feb 8, 2019 · 1f1352d · 1f1352d
1 parent 5128065
commit 1f1352d
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diff --git a/packages/dicomImageLoader/src/imageLoader/wadors/metaData/metaDataProvider.js b/packages/dicomImageLoader/src/imageLoader/wadors/metaData/metaDataProvider.js
@@ -130,6 +130,47 @@ function metaDataProvider (type, imageId) {
     };
   }
 
+  if (type === 'overlayPlaneModule') {
+    const overlays = [];
+
+    for (let overlayGroup = 0x00; overlayGroup <= 0x1E; overlayGroup += 0x02) {
+      let groupStr = `x60${overlayGroup.toString(16)}`;
+      if (groupStr.length === 4) {
+        groupStr = `x600${overlayGroup.toString(16)}`;
+      }
+
+      const data = getValue(metaData[`${groupStr}3000`]);
+      if (!data) {
+        continue;
+      }
+
+      const pixelData = [];
+      for (let i = 0; i < data.length; i++) {
+        for (let k = 0; k < 8; k++) {
+          const byte_as_int = metaData.Value[data.dataOffset + i];
+          pixelData[i * 8 + k] = (byte_as_int >> k) & 0b1; // eslint-disable-line no-bitwise
+        }
+      }
+
+      overlays.push({
+        rows: getNumberValue(metaData[`${groupStr}0010`]),
+        columns: getNumberValue(metaData[`${groupStr}0011`]),
+        type: getValue(metaData[`${groupStr}0040`]),
+        x: getNumberValue(metaData[`${groupStr}0050`], 1) - 1,
+        y: getNumberValue(metaData[`${groupStr}0050`], 0) - 1,
+        pixelData,
+        description: getValue(metaData[`${groupStr}0022`]),
+        label: getValue(metaData[`${groupStr}1500`]),
+        roiArea: getValue(metaData[`${groupStr}1301`]),
+        roiMean: getValue(metaData[`${groupStr}1302`]),
+        roiStandardDeviation: getValue(metaData[`${groupStr}1303`])
+      });
+    }
+
+    return {
+      overlays
+    };
+  }
 }
 
 export default metaDataProvider;
diff --git a/packages/dicomImageLoader/src/imageLoader/wadouri/metaData/metaDataProvider.js b/packages/dicomImageLoader/src/imageLoader/wadouri/metaData/metaDataProvider.js
@@ -121,6 +121,48 @@ function metaDataProvider (type, imageId) {
       }
     };
   }
+
+  if (type === 'overlayPlaneModule') {
+    const overlays = [];
+
+    for (let overlayGroup = 0x00; overlayGroup <= 0x1E; overlayGroup += 0x02) {
+      let groupStr = `x60${overlayGroup.toString(16)}`;
+      if (groupStr.length === 4) {
+        groupStr = `x600${overlayGroup.toString(16)}`;
+      }
+
+      const data = dataSet.elements[`${groupStr}3000`];
+      if (!data) {
+        continue;
+      }
+
+      const pixelData = [];
+      for (let i = 0; i < data.length; i++) {
+        for (let k = 0; k < 8; k++) {
+          const byte_as_int = dataSet.byteArray[data.dataOffset + i];
+          pixelData[i * 8 + k] = (byte_as_int >> k) & 0b1; // eslint-disable-line no-bitwise
+        }
+      }
+
+      overlays.push({
+        rows: dataSet.uint16(`${groupStr}0010`),
+        columns: dataSet.uint16(`${groupStr}0011`),
+        type: dataSet.string(`${groupStr}0040`),
+        x: dataSet.int16(`${groupStr}0050`, 1) - 1,
+        y: dataSet.int16(`${groupStr}0050`, 0) - 1,
+        pixelData,
+        description: dataSet.string(`${groupStr}0022`),
+        label: dataSet.string(`${groupStr}1500`),
+        roiArea: dataSet.string(`${groupStr}1301`),
+        roiMean: dataSet.string(`${groupStr}1302`),
+        roiStandardDeviation: dataSet.string(`${groupStr}1303`)
+      });
+    }
+
+    return {
+      overlays
+    };
+  }
 }
 
 export default metaDataProvider;