Adding test for vtkInteractorStyleRubberBandZoom

Tests various new modes added to vtkInteractorStyleRubberBandZoom.

Interaction/Style/Testing/Data/Baseline/TestStyleRubberBandZoomPerspective-CenterAtStartPosition.png.md5

+6c5ac5ef623a2c419cc0350c0df1ce46

Interaction/Style/Testing/Data/Baseline/TestStyleRubberBandZoomPerspective-CenterAtStartPositionAndLockAspect.png.md5

+6c5ac5ef623a2c419cc0350c0df1ce46

Interaction/Style/Testing/Data/Baseline/TestStyleRubberBandZoomPerspective-Default.png.md5

+1f82dcbd1215d23f9203a9c0e6e41d6c

Interaction/Style/Testing/Data/Baseline/TestStyleRubberBandZoomPerspective-LockAspect.png.md5

+2f6bf18b92e6f6d213d603a751a971dc

Interaction/Style/Testing/Data/Baseline/TestStyleRubberBandZoomPerspective-ParaViewWay.png.md5

+f67f2f01af729a28f5a7d100e7d86808

Interaction/Style/Testing/Python/CMakeLists.txt

@@ -2,6 +2,7 @@ if(NOT VTK_OPENGL_HAS_OSMESA AND NOT VTK_USE_OFFSCREEN_EGL)
   vtk_add_test_python(
     TestFlyTo.py
     TestStyleRubberBandZoom.py
+    TestStyleRubberBandZoomPerspective.py,NO_RT
     TestInteractorStyleTerrain.py
     TestStyleBaseSpike.py,NO_RT
     TestStyleJoystickActor.py,NO_RT

Interaction/Style/Testing/Python/TestStyleRubberBandZoomPerspective.py

+#!/usr/bin/env python
+from __future__ import print_function
+
+import vtk
+import vtk.test.Testing
+
+class TestStyleRubberBandZoomPerspective(vtk.test.Testing.vtkTest):
+
+    def initPipeline(self):
+        try:
+            if self.pipelineInitialized:
+                # default state
+                self.style.LockAspectToViewportOff()
+                self.style.CenterAtStartPositionOff()
+                self.style.UseDollyForPerspectiveProjectionOn()
+
+                # reset camera too
+                self.renderer.ResetCamera()
+                self.renderWindow.Render()
+        except AttributeError:
+            pass
+
+        self.pipelineInitialized = True
+
+        self.sphere = vtk.vtkSphereSource()
+        self.idFilter = vtk.vtkIdFilter()
+        self.mapper = vtk.vtkPolyDataMapper()
+        self.actor = vtk.vtkActor()
+
+        self.idFilter.PointIdsOff()
+        self.idFilter.CellIdsOn()
+        self.idFilter.SetInputConnection(self.sphere.GetOutputPort())
+
+        self.mapper.SetInputConnection(self.idFilter.GetOutputPort())
+        self.mapper.SetColorModeToMapScalars()
+        self.mapper.SetScalarModeToUseCellFieldData()
+        self.mapper.SelectColorArray("vtkIdFilter_Ids")
+        self.mapper.UseLookupTableScalarRangeOff()
+        self.mapper.SetScalarRange(0, 95)
+        self.actor.SetMapper(self.mapper)
+
+        self.renderer = vtk.vtkRenderer()
+        self.renderer.AddActor(self.actor)
+
+        self.renderWindow = vtk.vtkRenderWindow()
+        self.renderWindow.AddRenderer(self.renderer)
+
+        self.iren = vtk.vtkRenderWindowInteractor()
+        self.iren.SetRenderWindow(self.renderWindow)
+
+        self.style = vtk.vtkInteractorStyleRubberBandZoom()
+        self.iren.SetInteractorStyle(self.style)
+
+        self.renderer.GetActiveCamera().SetPosition(0, 0, -1)
+        self.renderer.ResetCamera()
+        self.renderWindow.Render()
+
+    def interact(self):
+        self.iren.SetEventInformationFlipY(150, 150, 0, 0, "0", 0, "0")
+        self.iren.InvokeEvent("LeftButtonPressEvent")
+        self.iren.SetEventInformationFlipY(192, 182, 0, 0, "0", 0, "0")
+        self.iren.InvokeEvent("MouseMoveEvent")
+        self.iren.InvokeEvent("LeftButtonReleaseEvent")
+
+    def compare(self, suffix):
+        img_file = "TestStyleRubberBandZoomPerspective-%s.png" % suffix
+        vtk.test.Testing.compareImage(self.renderWindow,
+                vtk.test.Testing.getAbsImagePath(img_file), threshold=25)
+        vtk.test.Testing.interact()
+
+    def testDefault(self):
+        print("testDefault")
+        self.initPipeline()
+        self.interact()
+        self.compare("Default")
+
+    def testLockAspect(self):
+        print("testLockAspect")
+        self.initPipeline()
+        self.style.LockAspectToViewportOn()
+        self.interact()
+        self.compare("LockAspect")
+
+    def testCenterAtStartPosition(self):
+        print("testCenterAtStartPosition")
+        self.initPipeline()
+        self.style.CenterAtStartPositionOn()
+        self.interact()
+        self.compare("CenterAtStartPosition")
+
+    def testCenterAtStartPositionAndLockAspect(self):
+        print("testCenterAtStartPositionAndLockAspect")
+        self.initPipeline()
+        self.style.CenterAtStartPositionOn()
+        self.style.LockAspectToViewportOn()
+        self.interact()
+        self.compare("CenterAtStartPositionAndLockAspect")
+
+    def testParaViewWay(self):
+        print("testParaViewWay")
+        self.initPipeline()
+        self.style.CenterAtStartPositionOn()
+        self.style.LockAspectToViewportOn()
+        self.style.UseDollyForPerspectiveProjectionOff()
+        self.interact()
+        self.compare("ParaViewWay")
+
+if __name__ == "__main__":
+    vtk.test.Testing.main([(TestStyleRubberBandZoomPerspective, 'test')])