feat(IRepresentation): expose actor and mapper

Author: floryst

src/core/Geometry2DRepresentation.tsx

@@ -161,8 +161,10 @@ export default forwardRef(function Geometry2DRepresentation(
         setDataAvailable(true);
         representation.dataChanged();
       },
+      getActor,
+      getMapper,
     }),
-    [renderer]
+    [renderer, getActor, getMapper]
   );
 
   const downstream = useMemo<IDownstream>(

src/core/GeometryRepresentation.tsx

@@ -174,8 +174,10 @@ export default forwardRef(function GeometryRepresentation(
         setDataAvailable(true);
         representation.dataChanged();
       },
+      getActor,
+      getMapper,
     }),
-    [renderer]
+    [renderer, getActor, getMapper]
   );
 
   const downstream = useMemo<IDownstream>(

src/core/ShareDataSet.tsx

@@ -175,6 +175,8 @@ export function RegisterDataSet(props: RegisterDataSetProps) {
       dataAvailable() {
         share.dispatchDataAvailable(id);
       },
+      getActor: () => null,
+      getMapper: () => null,
     }),
     [id, share]
   );

src/core/SliceRepresentation.tsx

@@ -201,8 +201,10 @@ export default forwardRef(function SliceRepresentation(props: Props, fwdRef) {
         setDataAvailable(true);
         representation.dataChanged();
       },
+      getActor,
+      getMapper,
     }),
-    [renderer]
+    [renderer, getActor, getMapper]
   );
 
   const downstream = useMemo<IDownstream>(

src/types.ts

@@ -1,6 +1,8 @@
 import vtkInteractorStyle from '@kitware/vtk.js/Interaction/Style/InteractorStyle';
 import { vtkObject } from '@kitware/vtk.js/interfaces';
+import vtkAbstractMapper from '@kitware/vtk.js/Rendering/Core/AbstractMapper';
 import vtkCamera from '@kitware/vtk.js/Rendering/Core/Camera';
+import vtkProp from '@kitware/vtk.js/Rendering/Core/Prop';
 import vtkRenderer from '@kitware/vtk.js/Rendering/Core/Renderer';
 import vtkRenderWindow from '@kitware/vtk.js/Rendering/Core/RenderWindow';
 import vtkRenderWindowInteractor from '@kitware/vtk.js/Rendering/Core/RenderWindowInteractor';
@@ -70,6 +72,8 @@ export interface IView {
 export interface IRepresentation {
   dataAvailable(): void;
   dataChanged(): void;
+  getActor(): vtkProp | null;
+  getMapper(): vtkAbstractMapper | null;
 }
 
 // There is no sufficient type that overlaps classes like