Files
openmesh/src/Unittests/unittests_trimesh_others.cc
2016-11-07 20:31:30 +01:00

176 lines
5.1 KiB
C++

#include <gtest/gtest.h>
#include <Unittests/unittests_common.hh>
#include <iostream>
namespace {
class OpenMeshOthers : public OpenMeshBase {
protected:
// This function is called before each test is run
virtual void SetUp() {
}
// This function is called after all tests are through
virtual void TearDown() {
// Do some final stuff with the member data here...
}
// Member already defined in OpenMeshBase
//Mesh mesh_;
};
/*
* ====================================================================
* Define tests below
* ====================================================================
*/
/*
* Checking for feature edges based on angle
*/
TEST_F(OpenMeshOthers, IsEstimatedFeatureEdge) {
mesh_.clear();
// Add some vertices
Mesh::VertexHandle vhandle[4];
vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 0, 0));
vhandle[1] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
vhandle[2] = mesh_.add_vertex(Mesh::Point(1, 1, 0));
vhandle[3] = mesh_.add_vertex(Mesh::Point(0, 0, 1));
// Add four faces
std::vector<Mesh::VertexHandle> face_vhandles;
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[2]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[3]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[0]);
mesh_.add_face(face_vhandles);
// ===============================================
// Setup complete
// ===============================================
// Check one Request only vertex normals
// Face normals are required for vertex and halfedge normals, so
// that prevent access to non existing properties are in place
mesh_.request_vertex_normals();
mesh_.request_halfedge_normals();
mesh_.request_face_normals();
// Automatically compute all normals
// As only vertex normals are requested and no face normals, this will compute nothing.
mesh_.update_normals();
Mesh::HalfedgeIter he_it = mesh_.halfedges_begin();
EXPECT_TRUE(mesh_.is_estimated_feature_edge(*he_it,0.0)) << "Wrong feature edge detection 0.0";
EXPECT_TRUE(mesh_.is_estimated_feature_edge(*he_it,0.125 * M_PI)) << "Wrong feature edge detection 0.125";
EXPECT_TRUE(mesh_.is_estimated_feature_edge(*he_it,0.25 * M_PI)) << "Wrong feature edge detection 0.25";
EXPECT_TRUE(mesh_.is_estimated_feature_edge(*he_it,0.375 * M_PI)) << "Wrong feature edge detection 0.375";
EXPECT_TRUE(mesh_.is_estimated_feature_edge(*he_it,0.5 * M_PI)) << "Wrong feature edge detection 0.5";
EXPECT_FALSE(mesh_.is_estimated_feature_edge(*he_it,0.625 * M_PI))<< "Wrong feature edge detection 0.625";
EXPECT_FALSE(mesh_.is_estimated_feature_edge(*he_it,0.75 * M_PI)) << "Wrong feature edge detection 0.75";
EXPECT_FALSE(mesh_.is_estimated_feature_edge(*he_it,0.875 * M_PI))<< "Wrong feature edge detection 0.875";
EXPECT_FALSE(mesh_.is_estimated_feature_edge(*he_it,1.0 * M_PI)) << "Wrong feature edge detection 1.0";
}
/*
* Checking for feature edges based on angle
*/
TEST_F(OpenMeshOthers, CalcDihedralAngre ) {
mesh_.clear();
/* Test setup:
*
* 1 -- 2
* | / |
* | / |
* 0 -- 3
*/
// Add some vertices
Mesh::VertexHandle vhandle[4];
vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 0, 0));
vhandle[1] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
vhandle[2] = mesh_.add_vertex(Mesh::Point(1, 1, 0));
vhandle[3] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
// Add four faces
std::vector<Mesh::VertexHandle> face_vhandles;
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[2]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
// ===============================================
// Setup complete
// ===============================================
Mesh::HalfedgeHandle he = mesh_.halfedge_handle(4);
EXPECT_EQ( 0 , mesh_.to_vertex_handle(he).idx() ) << "Wrong halfedge!" << std::endl;
EXPECT_EQ( 2 , mesh_.from_vertex_handle(he).idx() ) << "Wrong halfedge!" << std::endl;
EXPECT_EQ( 2 , mesh_.edge_handle(he).idx() ) << "Wrong Edge!" << std::endl;
Mesh::EdgeHandle eh = mesh_.edge_handle(he);
EXPECT_EQ( 0.0 , mesh_.calc_dihedral_angle(eh) ) << "Wrong Dihedral angle!" << std::endl;
// Modify point
Mesh::Point tmp = ( Mesh::Point(0.0, 0.0, -1.0) + Mesh::Point(1.0, 1.0, -1.0) ) * static_cast<Mesh::Point::value_type>(0.5);
mesh_.point(vhandle[2]) = tmp;
double difference = fabs( 1.36944 - mesh_.calc_dihedral_angle(eh) );
EXPECT_LT(difference, 0.00001) << "Wrong Dihedral angle, Difference is to big!" << std::endl;
}
}