86 lines
2 KiB
C
86 lines
2 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file eggMesher.h
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* @author drose
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* @date 2005-03-13
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*/
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#ifndef EGGMESHER_H
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#define EGGMESHER_H
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#include "pandabase.h"
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#include "eggMesherEdge.h"
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#include "eggMesherStrip.h"
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#include "eggPolygon.h"
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#include "pvector.h"
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#include "plist.h"
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#include "pset.h"
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#include "pmap.h"
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#include <algorithm>
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/**
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* Collects together unrelated EggPrimitives, determines their edge
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* connectivity, and generates a set of EggTriangleStrips that represent the
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* same geometry.
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*/
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class EXPCL_PANDA_EGG EggMesher {
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public:
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EggMesher();
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void mesh(EggGroupNode *group, bool flat_shaded);
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void write(std::ostream &out) const;
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bool _consider_fans;
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bool _retesselate_coplanar;
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bool _show_quads;
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bool _show_qsheets;
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private:
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void clear();
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bool add_polygon(const EggPolygon *egg_poly,
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EggMesherStrip::MesherOrigin origin);
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void do_mesh();
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PT(EggPrimitive) get_prim(EggMesherStrip &strip);
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typedef plist<EggMesherStrip> Strips;
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typedef pset<EggMesherEdge> Edges;
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typedef pset<EggMesherEdge *> EdgePtrs;
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typedef pmap<int, EdgePtrs> Verts;
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// This is used for show-qsheets.
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typedef pmap<int, LColor> ColorSheetMap;
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int count_vert_edges(const EdgePtrs &edges) const;
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plist<EggMesherStrip> &choose_strip_list(const EggMesherStrip &strip);
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void build_sheets();
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void find_fans();
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void make_quads();
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void mesh_list(Strips &strips);
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static void make_random_color(LColor &color);
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bool _flat_shaded;
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Strips _tris, _quads, _strips;
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Strips _dead, _done;
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Verts _verts;
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Edges _edges;
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int _strip_index;
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EggVertexPool *_vertex_pool;
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ColorSheetMap _color_sheets;
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friend class EggMesherStrip;
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friend class EggMesherFanMaker;
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};
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#include "eggMesher.I"
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#endif
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