Test for face texture with duplicate texture points.

IO/PLY/Testing/CMakeLists.txt

@@ -4,7 +4,8 @@ vtk_module_test_data(
   Data/bunny.ply
   Data/squareTextured.ply
   Data/squareTexturedFaces.ply
-  Data/vtk.png)
+  Data/vtk.png
+  Data/2vtk.png)
 
 add_subdirectory(Cxx)
 

IO/PLY/Testing/Cxx/CMakeLists.txt

@@ -7,8 +7,10 @@ vtk_add_test_cxx(vtkIOPLYCxxTests tests
   )
 vtk_add_test_cxx(vtkIOPLYCxxTests tests
   TestPLYReaderTextureUVPoints,TestPLYReaderTextureUV.cxx squareTextured.ply
+  vtk.png
 )
 vtk_add_test_cxx(vtkIOPLYCxxTests tests
   TestPLYReaderTextureUVFaces,TestPLYReaderTextureUV.cxx squareTexturedFaces.ply
+  2vtk.png
 )
 vtk_test_cxx_executable(vtkIOPLYCxxTests tests)

IO/PLY/Testing/Cxx/TestPLYReaderTextureUV.cxx

@@ -36,9 +36,12 @@ int TestPLYReaderTextureUV( int argc, char *argv[] )
     return EXIT_FAILURE;
   }
   std::string fn = "Data/";
-  fn += argv[1];
-  const char* fname = vtkTestUtilities::ExpandDataFileName(argc, argv, fn.c_str());
-  const char* fnameImg = vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/vtk.png");
+  std::string plyName = fn + argv[1];
+  std::string imageName = fn + argv[2];
+  const char* fname = vtkTestUtilities::ExpandDataFileName(
+    argc, argv, plyName.c_str());
+  const char* fnameImg = vtkTestUtilities::ExpandDataFileName(
+    argc, argv, imageName.c_str());
 
   // Test if the reader thinks it can open the file.
   if (0 == vtkPLYReader::CanReadFile(fname))

Testing/Data/2vtk.png.sha512

+578d7d00a06e2459970e191cfc9a143e949e7fdc141c87e0a5b88ab44c4103fb1efe1368681c5433719da77caea62e3f68820aaf425f5ff5130eaea953f10515

Testing/Data/squareTexturedFaces.ply.sha512

-f5bec009bc0f2a1c040ac594aa210a5845f23c732358f132e8df3dc1ee414bde8919c12def49be6832fc0c22ab6a1aced784c286d432c57b51a59477ff79ba87
+673205df28c0514ee54055ecbdcb0810a254cf45d5608660f3e9b33141f21acc972b345d829cf2ea827d58113fed903289a0b6431cc22a7c25bf6c335c73e61a