Pixyco-XYZ/openmesh
5
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

- PLY Reader/Writer: Support for face colors (Thanks to Steve and Barb Demlow for the patch)

Browse Source
This commit is contained in:
Jan Möbius
2019-02-21 12:49:56 +01:00
parent a63cbdb10e
commit 3fbc166201
7 changed files with 362 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

139
src/Unittests/unittests_read_write_PLY.cc
View File

@@ -800,4 +800,143 @@ TEST_F(OpenMeshReadWritePLY, FailOnUnknownPropertyTypeForLists) {
EXPECT_EQ(0u, mesh_.n_faces()) << "The number of loaded faces is not correct!";
}
/*
* Load an ASCII PLY file of a cube with float RGB face colors
*/
TEST_F(OpenMeshReadWritePLY, LoadSimplePLYWithFaceColors) {
mesh_.clear();
mesh_.request_face_colors();
OpenMesh::IO::Options options;
options += OpenMesh::IO::Options::FaceColor;
bool ok = OpenMesh::IO::read_mesh(mesh_, "cube-minimal-faceColors.ply",options);
EXPECT_TRUE(ok) << "Unable to load cube-minimal-faceColors.ply";
EXPECT_EQ(8u , mesh_.n_vertices()) << "The number of loaded vertices is not correct!";
EXPECT_EQ(18u, mesh_.n_edges()) << "The number of loaded edges is not correct!";
EXPECT_EQ(12u, mesh_.n_faces()) << "The number of loaded faces is not correct!";
EXPECT_EQ(107, mesh_.color(mesh_.face_handle(0))[0] ) << "Wrong face color at face 0";
EXPECT_EQ(117, mesh_.color(mesh_.face_handle(0))[1] ) << "Wrong face color at face 0";
EXPECT_EQ(177, mesh_.color(mesh_.face_handle(0))[2] ) << "Wrong face color at face 0";
EXPECT_EQ(107, mesh_.color(mesh_.face_handle(3))[0] ) << "Wrong face color at face 3";
EXPECT_EQ(255, mesh_.color(mesh_.face_handle(3))[1] ) << "Wrong face color at face 3";
EXPECT_EQ(135, mesh_.color(mesh_.face_handle(3))[2] ) << "Wrong face color at face 3";
EXPECT_EQ(163, mesh_.color(mesh_.face_handle(4))[0] ) << "Wrong face color at face 4";
EXPECT_EQ(107, mesh_.color(mesh_.face_handle(4))[1] ) << "Wrong face color at face 4";
EXPECT_EQ(177, mesh_.color(mesh_.face_handle(4))[2] ) << "Wrong face color at face 4";
EXPECT_EQ(255, mesh_.color(mesh_.face_handle(7))[0] ) << "Wrong face color at face 7";
EXPECT_EQ(140, mesh_.color(mesh_.face_handle(7))[1] ) << "Wrong face color at face 7";
EXPECT_EQ(107, mesh_.color(mesh_.face_handle(7))[2] ) << "Wrong face color at face 7";
EXPECT_FALSE(options.vertex_has_normal()) << "Wrong user options are returned!";
EXPECT_FALSE(options.vertex_has_texcoord()) << "Wrong user options are returned!";
EXPECT_FALSE(options.vertex_has_color()) << "Wrong user options are returned!";
EXPECT_TRUE(options.face_has_color()) << "Wrong user options are returned!";
EXPECT_FALSE(options.color_has_alpha()) << "Wrong user options are returned!";
EXPECT_FALSE(options.is_binary()) << "Wrong user options are returned!";
mesh_.release_face_colors();
}
/*
* Write and read PLY files with face colors in various formats
*/
TEST_F(OpenMeshReadWritePLY, WriteAndReadPLYWithFaceColors) {
struct Format {
Format(const char* outFileName, OpenMesh::IO::Options options) :
_outFileName(outFileName),
_options(options)
{}
const char* _outFileName;
const OpenMesh::IO::Options _options;
}
formats[] =
{
Format("cube-minimal-faceColors_ascii_uchar.ply",
OpenMesh::IO::Options::Default),
Format("cube-minimal-faceColors_ascii_float.ply",
OpenMesh::IO::Options::ColorFloat),
Format("cube-minimal-faceColors_binary_uchar.ply",
OpenMesh::IO::Options::Binary),
Format("cube-minimal-faceColors_binary_float.ply",
OpenMesh::IO::Options::Binary | OpenMesh::IO::Options::ColorFloat),
// Test writing/reading alpha values (all default 1.0/255), but the test mesh
// Color type has no alpha channel so there's nothing to test below
Format("cube-minimal-faceColors_alpha_ascii_uchar.ply",
OpenMesh::IO::Options::ColorAlpha),
Format("cube-minimal-faceColors_alpha_ascii_float.ply",
OpenMesh::IO::Options::ColorFloat | OpenMesh::IO::Options::ColorAlpha),
Format("cube-minimal-faceColors_alpha_binary_uchar.ply",
OpenMesh::IO::Options::Binary | OpenMesh::IO::Options::ColorAlpha),
Format("cube-minimal-faceColors_alpha_binary_float.ply",
OpenMesh::IO::Options::Binary | OpenMesh::IO::Options::ColorFloat | OpenMesh::IO::Options::ColorAlpha),
};
for (size_t i = 0; i < sizeof(formats) / sizeof(Format); ++i)
{
const char* outFileName = formats[i]._outFileName;
mesh_.clear();
mesh_.request_face_colors();
OpenMesh::IO::Options options;
options += OpenMesh::IO::Options::FaceColor;
bool ok = OpenMesh::IO::read_mesh(mesh_, "cube-minimal-faceColors.ply", options);
EXPECT_TRUE(ok) << "Unable to load cube-minimal-faceColors.ply";
options = formats[i]._options;
options += OpenMesh::IO::Options::FaceColor;
ok = OpenMesh::IO::write_mesh(mesh_, outFileName, options);
EXPECT_TRUE(ok) << "Unable to write " << outFileName;
// Reset for reading: let the reader determine binary/float/etc.
options = OpenMesh::IO::Options::FaceColor;
mesh_.clear();
ok = OpenMesh::IO::read_mesh(mesh_, outFileName, options);
EXPECT_TRUE(ok) << "Unable to load " << outFileName;
EXPECT_EQ(8u , mesh_.n_vertices()) << "The number of loaded vertices is not correct: " << outFileName;
EXPECT_EQ(18u, mesh_.n_edges()) << "The number of loaded edges is not correct: " << outFileName;
EXPECT_EQ(12u, mesh_.n_faces()) << "The number of loaded faces is not correct: " << outFileName;
EXPECT_EQ(107, mesh_.color(mesh_.face_handle(0))[0] ) << "Wrong face color at face 0: " << outFileName;
EXPECT_EQ(117, mesh_.color(mesh_.face_handle(0))[1] ) << "Wrong face color at face 0: " << outFileName;
EXPECT_EQ(177, mesh_.color(mesh_.face_handle(0))[2] ) << "Wrong face color at face 0: " << outFileName;
EXPECT_EQ(107, mesh_.color(mesh_.face_handle(3))[0] ) << "Wrong face color at face 3: " << outFileName;
EXPECT_EQ(255, mesh_.color(mesh_.face_handle(3))[1] ) << "Wrong face color at face 3: " << outFileName;
EXPECT_EQ(135, mesh_.color(mesh_.face_handle(3))[2] ) << "Wrong face color at face 3: " << outFileName;
EXPECT_EQ(163, mesh_.color(mesh_.face_handle(4))[0] ) << "Wrong face color at face 4: " << outFileName;
EXPECT_EQ(107, mesh_.color(mesh_.face_handle(4))[1] ) << "Wrong face color at face 4: " << outFileName;
EXPECT_EQ(177, mesh_.color(mesh_.face_handle(4))[2] ) << "Wrong face color at face 4: " << outFileName;
EXPECT_EQ(255, mesh_.color(mesh_.face_handle(7))[0] ) << "Wrong face color at face 7: " << outFileName;
EXPECT_EQ(140, mesh_.color(mesh_.face_handle(7))[1] ) << "Wrong face color at face 7: " << outFileName;
EXPECT_EQ(107, mesh_.color(mesh_.face_handle(7))[2] ) << "Wrong face color at face 7: " << outFileName;
EXPECT_FALSE(options.vertex_has_normal()) << "Wrong user options are returned: " << outFileName;
EXPECT_FALSE(options.vertex_has_texcoord()) << "Wrong user options are returned: " << outFileName;
EXPECT_FALSE(options.vertex_has_color()) << "Wrong user options are returned: " << outFileName;
EXPECT_TRUE(options.face_has_color()) << "Wrong user options are returned: " << outFileName;
EXPECT_EQ(formats[i]._options.color_is_float(), options.color_is_float()) <<
"Wrong user options are returned: " << outFileName;
EXPECT_EQ(formats[i]._options.is_binary(), options.is_binary()) <<
"Wrong user options are returned: " << outFileName;
mesh_.release_face_colors();
}
}
}