add support for u/v/w hoverinfo flags

Author: etpinard

package-lock.json

@@ -83,7 +83,7 @@
     "gl-select-box": "^1.0.2",
     "gl-spikes2d": "^1.0.1",
     "gl-surface3d": "^1.3.4",
-    "gl-streamtube3d": "[email protected]:gl-vis/gl-streamtube3d#0ce19fad7570e9d501d7dcc218f3101528dd3e64",
+    "gl-streamtube3d": "[email protected]:gl-vis/gl-streamtube3d#ad17c0af85eda664297d881d5743ed19b7509dc0",
     "glslify": "^6.1.1",
     "has-hover": "^1.0.1",
     "has-passive-events": "^1.0.0",

package.json

@@ -38,19 +38,19 @@ proto.handlePick = function(selection) {
 
     if(selection.object === this.mesh) {
         var pos = selection.data.position;
-
-        // TODO
-        // wait for patch in gl-streamtube3d
-        // to grab u/v/w
+        var uvx = selection.data.velocity;
 
         selection.traceCoordinate = [
             fromDataScale(pos[0], 'xaxis'),
             fromDataScale(pos[1], 'yaxis'),
             fromDataScale(pos[2], 'zaxis'),
 
-            null, null, null,
+            fromDataScale(uvx[0], 'xaxis'),
+            fromDataScale(uvx[1], 'yaxis'),
+            fromDataScale(uvx[2], 'zaxis'),
 
-            selection.data.intensity * this.data._normMax
+            // u/v/w norm
+            selection.data.intensity * this.data._normMax,
         ];
 
         return true;