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// Begin License:
// Copyright (C) 2006-2014 Tobias Sargeant (tobias.sargeant@gmail.com).
// All rights reserved.
//
// This file is part of the Carve CSG Library (http://carve-csg.com/)
//
// This file may be used under the terms of either the GNU General
// Public License version 2 or 3 (at your option) as published by the
// Free Software Foundation and appearing in the files LICENSE.GPL2
// and LICENSE.GPL3 included in the packaging of this file.
//
// This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
// INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE.
// End:
#if defined(HAVE_CONFIG_H)
# include <carve_config.h>
#endif
#include <carve/csg.hpp>
#include <carve/debug_hooks.hpp>
#include <list>
#include <set>
#include <iostream>
#include <algorithm>
#include "intersect_common.hpp"
#include "intersect_classify_common.hpp"
#include "intersect_classify_common_impl.hpp"
namespace carve {
namespace csg {
namespace {
#if defined(_MSC_VER) && _MSC_VER < 1300
// VC++ 6.0 gets an internal compiler when compiling
// the FaceMaker template. Not sure why but for now we just bypass
// the template
class FaceMaker0 {
public:
CSG::Collector &collector;
CSG::Hooks &hooks;
FaceMaker0(CSG::Collector &c, CSG::Hooks &h) : collector(c), hooks(h) {
}
bool pointOn(VertexClassification &vclass, FaceLoop *f, size_t index) const {
return vclass[f->vertices[index]].cls[1] == POINT_ON;
}
void explain(FaceLoop *f, size_t index, PointClass pc) const {
#if defined(CARVE_DEBUG)
std::cerr << "face loop " << f << " from poly " << "ab"[0] << " is easy because vertex " << index << " (" << *f->vertices[index] << ") is " << ENUM(pc) << std::endl;
#endif
}
};
class FaceMaker1 {
public:
CSG::Collector &collector;
CSG::Hooks &hooks;
FaceMaker1(CSG::Collector &c, CSG::Hooks &h) : collector(c), hooks(h) {
}
bool pointOn(VertexClassification &vclass, FaceLoop *f, size_t index) const {
return vclass[f->vertices[index]].cls[0] == POINT_ON;
}
void explain(FaceLoop *f, size_t index, PointClass pc) const {
#if defined(CARVE_DEBUG)
std::cerr << "face loop " << f << " from poly " << "ab"[1] << " is easy because vertex " << index << " (" << *f->vertices[index] << ") is " << ENUM(pc) << std::endl;
#endif
}
};
#else
template <int poly_num>
class FaceMaker {
FaceMaker &operator=(const FaceMaker &);
public:
CSG::Collector &collector;
CSG::Hooks &hooks;
FaceMaker(CSG::Collector &c, CSG::Hooks &h) : collector(c), hooks(h) {
}
bool pointOn(VertexClassification &vclass, FaceLoop *f, size_t index) const {
return vclass[f->vertices[index]].cls[1 - poly_num] == POINT_ON;
}
void explain(FaceLoop *f, size_t index, PointClass pc) const {
#if defined(CARVE_DEBUG)
std::cerr << "face loop " << f << " from poly " << "ab"[poly_num] << " is easy because vertex " << index << " (" << f->vertices[index]->v << ") is " << ENUM(pc) << std::endl;
#endif
}
};
typedef FaceMaker<0> FaceMaker0;
typedef FaceMaker<1> FaceMaker1;
#endif
class ClassifyFaceGroups {
ClassifyFaceGroups &operator=(const ClassifyFaceGroups &);
public:
CSG::Collector &collector;
CSG::Hooks &hooks;
ClassifyFaceGroups(CSG::Collector &c, CSG::Hooks &h) : collector(c), hooks(h) {
}
void classifySimple(FLGroupList &a_loops_grouped,
FLGroupList &b_loops_grouped,
VertexClassification & /* vclass */,
carve::mesh::MeshSet<3> *poly_a,
carve::mesh::MeshSet<3> *poly_b) const {
if (a_loops_grouped.size() < b_loops_grouped.size()) {
performClassifySimpleOnFaceGroups(a_loops_grouped, b_loops_grouped, poly_a, poly_b, collector, hooks);
} else {
performClassifySimpleOnFaceGroups(b_loops_grouped, a_loops_grouped, poly_b, poly_a, collector, hooks);
}
#if defined(CARVE_DEBUG)
std::cerr << "after removal of simple on groups: " << a_loops_grouped.size() << " a groups" << std::endl;
std::cerr << "after removal of simple on groups: " << b_loops_grouped.size() << " b groups" << std::endl;
#endif
}
void classifyEasy(FLGroupList &a_loops_grouped,
FLGroupList &b_loops_grouped,
VertexClassification &vclass,
carve::mesh::MeshSet<3> *poly_a,
const carve::geom::RTreeNode<3, carve::mesh::Face<3> *> *poly_a_rtree,
carve::mesh::MeshSet<3> *poly_b,
const carve::geom::RTreeNode<3, carve::mesh::Face<3> *> *poly_b_rtree) const {
performClassifyEasyFaceGroups(a_loops_grouped, poly_b, poly_b_rtree, vclass, FaceMaker0(collector, hooks), collector, hooks);
performClassifyEasyFaceGroups(b_loops_grouped, poly_a, poly_a_rtree, vclass, FaceMaker1(collector, hooks), collector, hooks);
#if defined(CARVE_DEBUG)
std::cerr << "after removal of easy groups: " << a_loops_grouped.size() << " a groups" << std::endl;
std::cerr << "after removal of easy groups: " << b_loops_grouped.size() << " b groups" << std::endl;
#endif
}
void classifyHard(FLGroupList &a_loops_grouped,
FLGroupList &b_loops_grouped,
VertexClassification & /* vclass */,
carve::mesh::MeshSet<3> *poly_a,
const carve::geom::RTreeNode<3, carve::mesh::Face<3> *> *poly_a_rtree,
carve::mesh::MeshSet<3> *poly_b,
const carve::geom::RTreeNode<3, carve::mesh::Face<3> *> *poly_b_rtree) const {
performClassifyHardFaceGroups(a_loops_grouped, poly_b, poly_b_rtree, FaceMaker0(collector, hooks), collector, hooks);
performClassifyHardFaceGroups(b_loops_grouped, poly_a, poly_a_rtree, FaceMaker1(collector, hooks), collector, hooks);
#if defined(CARVE_DEBUG)
std::cerr << "after removal of hard groups: " << a_loops_grouped.size() << " a groups" << std::endl;
std::cerr << "after removal of hard groups: " << b_loops_grouped.size() << " b groups" << std::endl;
#endif
}
void faceLoopWork(FLGroupList &a_loops_grouped,
FLGroupList &b_loops_grouped,
VertexClassification & /* vclass */,
carve::mesh::MeshSet<3> *poly_a,
const carve::geom::RTreeNode<3, carve::mesh::Face<3> *> *poly_a_rtree,
carve::mesh::MeshSet<3> *poly_b,
const carve::geom::RTreeNode<3, carve::mesh::Face<3> *> *poly_b_rtree) const {
performFaceLoopWork(poly_b, poly_b_rtree, a_loops_grouped, *this, collector, hooks);
performFaceLoopWork(poly_a, poly_a_rtree, b_loops_grouped, *this, collector, hooks);
}
void postRemovalCheck(FLGroupList &a_loops_grouped,
FLGroupList &b_loops_grouped) const {
#if defined(CARVE_DEBUG)
std::cerr << "after removal of on groups: " << a_loops_grouped.size() << " a groups" << std::endl;
std::cerr << "after removal of on groups: " << b_loops_grouped.size() << " b groups" << std::endl;
#endif
}
bool faceLoopSanityChecker(FaceLoopGroup &i) const {
return i.face_loops.size() != 1;
}
void finish(FLGroupList &a_loops_grouped,FLGroupList &b_loops_grouped) const {
#if defined(CARVE_DEBUG)
if (a_loops_grouped.size() || b_loops_grouped.size())
std::cerr << "UNCLASSIFIED! a=" << a_loops_grouped.size() << ", b=" << b_loops_grouped.size() << std::endl;
#endif
}
};
}
void CSG::classifyFaceGroups(const V2Set & /* shared_edges */,
VertexClassification &vclass,
carve::mesh::MeshSet<3> *poly_a,
const carve::geom::RTreeNode<3, carve::mesh::Face<3> *> *poly_a_rtree,
FLGroupList &a_loops_grouped,
const detail::LoopEdges & /* a_edge_map */,
carve::mesh::MeshSet<3> *poly_b,
const carve::geom::RTreeNode<3, carve::mesh::Face<3> *> *poly_b_rtree,
FLGroupList &b_loops_grouped,
const detail::LoopEdges & /* b_edge_map */,
CSG::Collector &collector) {
ClassifyFaceGroups classifier(collector, hooks);
#if defined(CARVE_DEBUG)
std::cerr << "initial groups: " << a_loops_grouped.size() << " a groups" << std::endl;
std::cerr << "initial groups: " << b_loops_grouped.size() << " b groups" << std::endl;
#endif
performClassifyFaceGroups(
a_loops_grouped,
b_loops_grouped,
vclass,
poly_a,
poly_a_rtree,
poly_b,
poly_b_rtree,
classifier,
collector,
hooks);
}
}
}
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