/// \todo move this function into an include
bool is_mesh_valid(Polyhedron *pMesh) {
if (!pMesh->is_closed())
{
QMessageBox msgBox;
msgBox.setText("The mesh is not closed.");
msgBox.exec();
return false;
}
if (!pMesh->is_pure_triangle())
{
QMessageBox msgBox;
msgBox.setText("The mesh is not a pure triangle mesh.");
msgBox.exec();
return false;
}
// the algorithm is only applicable on a mesh
// that has only one connected component
std::size_t num_component;
CGAL::Counting_output_iterator output_it(&num_component);
CGAL::internal::corefinement::extract_connected_components(*pMesh, output_it);
++output_it;
if (num_component != 1)
{
QMessageBox msgBox;
QString str = QString("The mesh is not a single closed mesh.\n It has %1 components.").arg(num_component);
msgBox.setText(str);
msgBox.exec();
return false;
}
return true;
}
inline void forward(std::istream& input_stream, std::ostream& output_stream)
{
std::istreambuf_iterator<char> input_begin(input_stream);
std::istreambuf_iterator<char> input_end;
std::ostreambuf_iterator<char> output_it(output_stream);
std::copy(input_begin, input_end, output_it);
}
inline void forward(std::istream& input_stream, std::ostream& output_stream, std::streamsize size)
{
std::istreambuf_iterator<char> input_it(input_stream);
std::ostreambuf_iterator<char> output_it(output_stream);
while (size-- > 0)
*output_it++ = *input_it++;
}
