fix(AbstractMapper): Add missing class hierarchy

Added missing class hierarchy for AbstractMapper.
Removed extra extend calls from VolumeMapper.

Author: DrewLazzeriKitware

Sources/Rendering/Core/AbstractMapper/index.js

@@ -5,18 +5,20 @@ import macro from 'vtk.js/Sources/macros';
 // ----------------------------------------------------------------------------
 
 function vtkAbstractMapper(publicAPI, model) {
+  model.classHierarchy.push('vtkAbstractMapper');
   publicAPI.update = () => {
     publicAPI.getInputData();
   };
 
   publicAPI.addClippingPlane = (plane) => {
     if (plane.getClassName() !== 'vtkPlane') {
-      return;
+      return false;
     }
-    for (let i = 0; i < model.clippingPlanes.length; i++) {
-      if (model.clippingPlanes[i] === plane) return;
+    if (!model.clippingPlanes.includes(plane)) {
+      model.clippingPlanes.push(plane);
+      return true;
     }
-    model.clippingPlanes.push(plane);
+    return false;
   };
 
   publicAPI.getNumberOfClippingPlanes = () => model.clippingPlanes.length;
@@ -27,9 +29,10 @@ function vtkAbstractMapper(publicAPI, model) {
 
   publicAPI.removeClippingPlane = (i) => {
     if (i < 0 || i >= 6) {
-      return;
+      return false;
     }
     model.clippingPlanes.splice(i, 1);
+    return true;
   };
 
   publicAPI.getClippingPlanes = () => model.clippingPlanes;

Sources/Rendering/Core/VolumeMapper/index.js

@@ -99,10 +99,6 @@ export function extend(publicAPI, model, initialValues = {}) {
 
   vtkAbstractMapper.extend(publicAPI, model, initialValues);
 
-  // Build VTK API
-  macro.obj(publicAPI, model);
-  macro.algo(publicAPI, model, 1, 0);
-
   macro.setGet(publicAPI, model, [
     'sampleDistance',
     'imageSampleDistance',