Test for clipping closed surface with InsideOut and multiple planes

Filters/General/Testing/Cxx/CMakeLists.txt

@@ -64,6 +64,7 @@ vtk_add_test_cxx(vtkFiltersGeneralCxxTests data_tests
   BoxClipOrientedPointData.cxx
   BoxClipPointData.cxx
   TestClipClosedSurface1.cxx
+  TestClipClosedSurface2.cxx
   TestDataSetGradient.cxx
   TestDataSetGradientPrecompute.cxx
   TestDateToNumeric.cxx

Filters/General/Testing/Cxx/TestClipClosedSurface1.cxx

@@ -19,7 +19,6 @@
 #include "vtkRenderWindowInteractor.h"
 #include "vtkRenderer.h"
 #include "vtkTestUtilities.h"
-#include "vtkTesting.h"
 #include "vtkTransform.h"
 #include "vtkTransformPolyDataFilter.h"
 #include "vtkVolume16Reader.h"

Filters/General/Testing/Cxx/TestClipClosedSurface2.cxx

+// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
+// SPDX-License-Identifier: BSD-3-Clause
+
+/**Description
+ * Test for closed surface clipping with multiple planes
+ */
+
+#include "vtkActor.h"
+#include "vtkCamera.h"
+#include "vtkClipClosedSurface.h"
+#include "vtkNew.h"
+#include "vtkPlane.h"
+#include "vtkPlaneCollection.h"
+#include "vtkPolyDataMapper.h"
+#include "vtkProperty.h"
+#include "vtkRenderWindow.h"
+#include "vtkRenderWindowInteractor.h"
+#include "vtkRenderer.h"
+#include "vtkSuperquadricSource.h"
+#include "vtkTransform.h"
+
+int TestClipClosedSurface2(int vtkNotUsed(argc), char* vtkNotUsed(argv)[])
+{
+  cout << "CTEST_FULL_OUTPUT (Avoid ctest truncation of output)" << endl;
+
+  // Initialize the render window
+  vtkNew<vtkRenderWindow> renWin;
+  renWin->SetMultiSamples(0);
+  renWin->SetSize(301, 300); // Intentional NPOT size
+
+  vtkNew<vtkRenderer> ren;
+  ren->SetBackground(0.3, 0.3, 0.32);
+  renWin->AddRenderer(ren);
+
+  vtkNew<vtkRenderWindowInteractor> iren;
+  iren->SetRenderWindow(renWin);
+
+  vtkNew<vtkSuperquadricSource> source;
+  source->SetPhiResolution(24);
+  source->SetPhiRoundness(0.5);
+  source->SetThetaResolution(24);
+  source->SetThetaRoundness(0.5);
+
+  // Define the clipping planes
+  vtkNew<vtkPlane> clipPlane1;
+  clipPlane1->SetOrigin(0.27, -0.16, 0.46);
+  clipPlane1->SetNormal(0.48, -0.29, 0.83);
+  vtkNew<vtkPlane> clipPlane2;
+  clipPlane2->SetOrigin(-0.39, 0.22, 0.30);
+  clipPlane2->SetNormal(-0.8, -0.31, 0.5);
+  vtkNew<vtkPlane> clipPlane3;
+  clipPlane3->SetOrigin(0.16, -0.19, 0.42);
+  clipPlane3->SetNormal(0.0, -0.95, 0.31);
+
+  // Group the planes into a collection
+  vtkNew<vtkPlaneCollection> planes;
+  planes->AddItem(clipPlane1);
+  planes->AddItem(clipPlane2);
+  planes->AddItem(clipPlane3);
+
+  // Create a clip
+  vtkNew<vtkClipClosedSurface> clip;
+  clip->SetClippingPlanes(planes);
+  clip->SetInputConnection(source->GetOutputPort());
+  clip->SetBaseColor(0.44, 0.31, 0.31);
+  clip->SetClipColor(0.87, 0.63, 0.87);
+  clip->SetScalarModeToColors();
+  clip->GenerateClipFaceOutputOn();
+  clip->GenerateFacesOn();
+  clip->GenerateOutlineOff();
+  clip->InsideOutOn();
+
+  // Add the clip actor to the viewport
+  vtkNew<vtkPolyDataMapper> clipMapper;
+  clipMapper->SetInputConnection(clip->GetOutputPort());
+  vtkNew<vtkActor> clipActor;
+  clipActor->SetMapper(clipMapper);
+  clipActor->GetProperty()->SetDiffuse(0.5);
+  clipActor->GetProperty()->SetAmbient(0.5);
+  ren->AddActor(clipActor);
+
+  // Add the triangulated clip face
+  double n[3];
+  clipPlane3->GetNormal(n);
+  vtkMath::MultiplyScalar(n, 0.5);
+  vtkNew<vtkTransform> t;
+  t->Translate(n);
+  vtkNew<vtkPolyDataMapper> clipFaceMapper;
+  clipFaceMapper->SetInputConnection(clip->GetOutputPort(1));
+  vtkNew<vtkActor> clipFaceActor;
+  clipFaceActor->SetMapper(clipFaceMapper);
+  clipFaceActor->SetUserTransform(t);
+  clipFaceActor->GetProperty()->SetColor(0.18, 0.54, 0.34);
+  clipFaceActor->GetProperty()->SetDiffuse(0.5);
+  clipFaceActor->GetProperty()->SetAmbient(0.5);
+  ren->AddActor(clipFaceActor);
+
+  ren->GetActiveCamera()->SetViewUp(0, -1, 0);
+  ren->ResetCamera();
+  renWin->Render();
+  iren->Start();
+
+  return EXIT_SUCCESS;
+}

Filters/General/Testing/Data/Baseline/TestClipClosedSurface2.png.sha512

+dcd5023168ffa880b4689c4565cdd5f9f1971f10ddf4548f256329bab72fa0717906eb3b8ecbbd8e9bda7a2f84610db9edac1d5fc0d1e41440d3a8bb25a8335f