Merged LesionTracker and OHIF Viewer, refactored out common components

Packages/viewerbase/lib/metaDataProvider.js

@@ -0,0 +1,82 @@
+var metaDataLookup = {};
+
+addMetaData = function(imageId, data) {
+    var instanceMetaData = data.instance;
+    var seriesMetaData = data.series;
+    var studyMetaData = data.study;
+    var imageIndex = data.imageIndex;
+    var numImages = data.numImages;
+
+    var metaData = {};
+
+    metaData.study = {
+        date: instanceMetaData.studyDate,
+        time: instanceMetaData.studyTime,
+        description: instanceMetaData.studyDescription
+    };
+
+    metaData.series = {
+        description: seriesMetaData.seriesDescription,
+        number: seriesMetaData.seriesNumber,
+        modality: seriesMetaData.modality,
+        instanceUid: seriesMetaData.instanceUid,
+        numImages: numImages
+    };
+
+    metaData.instance = {
+        number: instanceMetaData.instanceNumber,
+        index: imageIndex
+    };
+
+    metaData.patient = {
+        name: instanceMetaData.patientName,
+        id: instanceMetaData.patientId
+    };
+
+    // If there is sufficient information, populate
+    // the imagePlane object for easier use in the Viewer
+    if (instanceMetaData.frameOfReferenceUID &&
+        instanceMetaData.imageOrientationPatient &&
+        instanceMetaData.imagePositionPatient) {
+
+        var imageOrientation = instanceMetaData.imageOrientationPatient.split('\\');
+        var imagePosition = instanceMetaData.imagePositionPatient.split('\\');
+
+        var columnPixelSpacing = 1.0;
+        var rowPixelSpacing = 1.0;
+        if (instanceMetaData.pixelSpacing) {
+            var split = instanceMetaData.pixelSpacing.split('\\');
+            rowPixelSpacing = parseFloat(split[0]);
+            columnPixelSpacing = parseFloat(split[1]);
+        }
+        
+        metaData.imagePlane = {
+            frameOfReferenceUID: instanceMetaData.frameOfReferenceUID,
+            rows: instanceMetaData.rows,
+            columns: instanceMetaData.columns,
+            rowCosines: new cornerstoneMath.Vector3(parseFloat(imageOrientation[0]), parseFloat(imageOrientation[1]), parseFloat(imageOrientation[2])),
+            columnCosines: new cornerstoneMath.Vector3(parseFloat(imageOrientation[3]), parseFloat(imageOrientation[4]), parseFloat(imageOrientation[5])),
+            imagePositionPatient: new cornerstoneMath.Vector3(parseFloat(imagePosition[0]), parseFloat(imagePosition[1]), parseFloat(imagePosition[2])),
+            rowPixelSpacing: rowPixelSpacing,
+            columnPixelSpacing: columnPixelSpacing,
+        };
+    }
+
+    // Add the metaData to the imageId lookup object
+    metaDataLookup[imageId] = metaData;
+};
+
+function provider(type, imageId) {
+    var imageMetaData = metaDataLookup[imageId];
+    if (!imageMetaData) {
+        return;
+    }
+
+    if (imageMetaData.hasOwnProperty(type)) {
+        return imageMetaData[type];
+    }
+}
+
+Meteor.startup(function() {
+    cornerstoneTools.metaData.addProvider(provider);
+});