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".nefdbg" extension to dump debug info on CGALNefPolyhedron3+SphereMaps

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This commit is contained in:
Don Bright 2015-10-26 19:43:07 -05:00
parent 53c255d4fd
commit 07e948f522
4 changed files with 137 additions and 7 deletions
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6
src/export.cc
View file

@ -64,6 +64,9 @@ void exportFile(const class Geometry *root_geom, std::ostream &output, FileForma
case OPENSCAD_DXF:
assert(false && "Export Nef polyhedron as DXF not supported");
break;
case OPENSCAD_NEFDBG:
output << N->dump();
break;
default:
assert(false && "Unknown file format");
}
@ -80,6 +83,9 @@ void exportFile(const class Geometry *root_geom, std::ostream &output, FileForma
case OPENSCAD_AMF:
export_amf(*ps, output);
break;
case OPENSCAD_NEFDBG:
PRINT("Not a CGALNefPoly. Add some CSG ops.");
break;
default:
assert(false && "Unsupported file format");
}

3
src/export.h
View file

@ -12,7 +12,8 @@ enum FileFormat {
OPENSCAD_OFF,
OPENSCAD_AMF,
OPENSCAD_DXF,
OPENSCAD_SVG
OPENSCAD_SVG,
OPENSCAD_NEFDBG
};
// void exportFile(const class Geometry *root_geom, std::ostream &output, FileFormat format);

7
src/openscad.cc
View file

@ -344,6 +344,7 @@ int cmdline(const char *deps_output_file, const std::string &filename, Camera &c
const char *ast_output_file = NULL;
const char *term_output_file = NULL;
const char *echo_output_file = NULL;
const char *nefdbg_output_file = NULL;
std::string suffix = boosty::extension_str( output_file );
boost::algorithm::to_lower( suffix );
@ -358,6 +359,7 @@ int cmdline(const char *deps_output_file, const std::string &filename, Camera &c
else if (suffix == ".ast") ast_output_file = output_file;
else if (suffix == ".term") term_output_file = output_file;
else if (suffix == ".echo") echo_output_file = output_file;
else if (suffix == ".nefdbg") nefdbg_output_file = output_file;
else {
PRINTB("Unknown suffix for output file %s\n", output_file);
return 1;
@ -540,6 +542,11 @@ int cmdline(const char *deps_output_file, const std::string &filename, Camera &c
fstream.close();
}
}
if (nefdbg_output_file) {
if (!checkAndExport(root_geom, 3, OPENSCAD_NEFDBG, nefdbg_output_file))
return 1;
}
#else
PRINT("OpenSCAD has been compiled without CGAL support!\n");
return 1;

128
src/svg.cc
View file

@ -16,7 +16,9 @@ std::string svg_header( int widthpx, int heightpx )
{
std::stringstream out;
out << "<svg width='" << widthpx << "px' height='" << heightpx << "px'"
<< " xmlns='http://www.w3.org/2000/svg' version='1.1'>";
<< " xmlns='http://www.w3.org/2000/svg' version='1.1'>\n";
out << "<!-- please do not write code depending on this format -->\n";
out << "<!-- it is for debugging only and subject to change -->\n";
return out.str();
}
@ -189,6 +191,92 @@ std::string dump_svg( const CGAL_Nef_polyhedron2 &N )
return tmp;
}
std::string point_dump( CGAL_Point_3 p )
{
std::stringstream out;
out << CGAL::to_double(p.x()) << ","
<< CGAL::to_double(p.y()) << ","
<< CGAL::to_double(p.z());
return out.str();
}
std::string point_dump( CGAL::Sphere_point<CGAL_Kernel3> p )
{
std::stringstream out;
out << CGAL::to_double(p.x()) << ","
<< CGAL::to_double(p.y()) << ","
<< CGAL::to_double(p.z());
return out.str();
}
std::string vert_dump( CGAL_Nef_polyhedron3::Vertex_const_handle vch )
{
return point_dump( vch->point() );
}
std::string vert_dump( CGAL_Nef_polyhedron3::Nef_polyhedron_S2::SVertex_const_handle vch )
{
return point_dump( vch->point() );
}
/*
Dump the 'sphere map' of every vertex in a CGAL Nef Polyhedron3
see http://doc.cgal.org/latest/Nef_3/index.html
*/
std::string sphere_map_dump( const CGAL_Nef_polyhedron3& N)
{
std::stringstream out;
typedef CGAL_Nef_polyhedron3::Vertex_const_iterator Vertex_const_iterator;
typedef CGAL_Nef_polyhedron3::Nef_polyhedron_S2 Nef_polyhedron_S2;
typedef Nef_polyhedron_S2::SVertex_const_handle SVertex_const_handle;
typedef Nef_polyhedron_S2::SHalfedge_const_handle SHalfedge_const_handle;
typedef Nef_polyhedron_S2::SHalfloop_const_handle SHalfloop_const_handle;
typedef Nef_polyhedron_S2::SFace_const_iterator SFace_const_iterator;
typedef Nef_polyhedron_S2::SFace_cycle_const_iterator SFace_cycle_const_iterator;
Vertex_const_iterator v;
out << "<!-- sphere map begin -->\n";
int counter = 0;
for (v = N.vertices_begin(); v!= N.vertices_end(); v++ ) {
counter++;
out << "<!-- vertex sphere map begin. vertex counter is " << counter << "\n";
out << " vertex coordinates: " << vert_dump( v ) << "-->\n";
Nef_polyhedron_S2 S(N.get_sphere_map(v));
out << " vertex sphere map info\n";
out << " number of svertices: " << S.number_of_svertices() << std::endl;
out << " number of shalfedges: " << S.number_of_shalfedges() << std::endl;
out << " number of shalfloops: " << S.number_of_shalfloops() << std::endl;
out << " number of sfaces: " << S.number_of_sfaces() << std::endl;
out << " number of sface cycles: " << S.number_of_sface_cycles() << std::endl;
out << " connected_components: " << S.number_of_connected_components() << "\n";
out << " integrity check...(asserts if not OK)\n";
S.check_integrity_and_topological_planarity();
// S.print_statistics( out );
int i=0;
SFace_const_iterator sf;
for(sf = S.sfaces_begin(); sf != S.sfaces_end(); sf++) {
SFace_cycle_const_iterator it;
out << " the sface cycles of sface " << i++ << " start with an\n";
for(it = sf->sface_cycles_begin(); it != sf->sface_cycles_end(); it++) {
if (it.is_svertex())
out << " svertex at position "
<< vert_dump( SVertex_const_handle(it) ) << "\n";
else if (it.is_shalfedge())
out << " shalfedge from "
<< vert_dump( SHalfedge_const_handle(it)->source() ) << " to "
<< vert_dump( SHalfedge_const_handle(it)->target() ) << std::endl;
else if (it.is_shalfloop())
out << " shalfloop lying in the plane "
<< SHalfloop_const_handle(it)->circle() << std::endl;
else
out << " unknown bug\n";
}
}
out << "\n vertex sphere map end -->\n";
}
out << "<!-- sphere map end -->\n";
return out.str();
}
// This uses the Shell Explorer pattern from the CGAL Manual to dump the 3d Nef Polyhedron information
// http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Nef_3/Chapter_main.html#Subsection_29.7.2
@ -200,11 +288,27 @@ public:
{
bbox = CGALUtils::boundingBox(N);
}
void visit(CGAL_Nef_polyhedron3::Vertex_const_handle ) {}
void visit(CGAL_Nef_polyhedron3::Halfedge_const_handle ) {}
void visit(CGAL_Nef_polyhedron3::SHalfedge_const_handle ) {}
void visit(CGAL_Nef_polyhedron3::SHalfloop_const_handle ) {}
void visit(CGAL_Nef_polyhedron3::SFace_const_handle ) {}
void visit(CGAL_Nef_polyhedron3::Vertex_const_handle vch)
{
CGAL_Point_3 p = vch->point();
out << " <!-- vertex " << point_dump( p ) << " -->\n";
}
void visit(CGAL_Nef_polyhedron3::Halfedge_const_handle )
{
out << " <!-- halfedge --> \n";
}
void visit(CGAL_Nef_polyhedron3::SHalfedge_const_handle )
{
out << " <!-- shalfedge --> \n";
}
void visit(CGAL_Nef_polyhedron3::SHalfloop_const_handle )
{
out << " <!-- shalfloop --> \n";
}
void visit(CGAL_Nef_polyhedron3::SFace_const_handle )
{
out << " <!-- sface --> \n";
}
void visit( CGAL_Nef_polyhedron3::Halffacet_const_handle hfacet )
{
int contour_count = 0;
@ -254,6 +358,18 @@ std::string dump_svg( const CGAL_Nef_polyhedron3 &N )
out << "<!--CGAL_Nef_polyhedron3 dump begin-->\n";
out << svg_header() << "\n" << svg_border() << "\n";
out << svg_styleblock( linewidth ) << "\n" << svg_axes() << "\n";
out << "\n<!-- CGAL Nef Polyhedron data"
<< "\nnumber of vertices " << N.number_of_vertices()
<< "\nnumber of halfedges " << N.number_of_halfedges()
<< "\nnumber of edges " << N.number_of_edges()
<< "\nnumber of halffacets " << N.number_of_halffacets()
<< "\nnumber of facets " << N.number_of_facets()
<< "\nnumber of volumes " << N.number_of_volumes()
<< "\nis_simple()? " << N.is_simple()
<< "\nis_valid()? " << (const_cast<CGAL_Nef_polyhedron3&>(N)).is_valid()
<< "\n -->\n";
out << "<!-- CGAL Nef Polyhedron sphere map: -->\n";
out << sphere_map_dump( N );
CGAL_Nef_polyhedron3::Volume_const_iterator c;
CGAL_forall_volumes(c,N) {