74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
|
/**
|
||
|
|
* PANDA 3D SOFTWARE
|
||
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
||
|
|
*
|
||
|
|
* All use of this software is subject to the terms of the revised BSD
|
||
|
|
* license. You should have received a copy of this license along
|
||
|
|
* with this source code in a file named "LICENSE."
|
||
|
|
*
|
||
|
|
* @file eggPolygon.h
|
||
|
|
* @author drose
|
||
|
|
* @date 1999-01-16
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef EGGPOLYGON_H
|
||
|
|
#define EGGPOLYGON_H
|
||
|
|
|
||
|
|
#include "pandabase.h"
|
||
|
|
|
||
|
|
#include "eggPrimitive.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A single polygon.
|
||
|
|
*/
|
||
|
|
class EXPCL_PANDA_EGG EggPolygon : public EggPrimitive {
|
||
|
|
PUBLISHED:
|
||
|
|
INLINE explicit EggPolygon(const std::string &name = "");
|
||
|
|
INLINE EggPolygon(const EggPolygon ©);
|
||
|
|
INLINE EggPolygon &operator = (const EggPolygon ©);
|
||
|
|
|
||
|
|
virtual EggPolygon *make_copy() const override;
|
||
|
|
|
||
|
|
virtual bool cleanup() override;
|
||
|
|
|
||
|
|
bool calculate_normal(LNormald &result, CoordinateSystem cs = CS_default) const;
|
||
|
|
bool is_planar() const;
|
||
|
|
|
||
|
|
INLINE bool recompute_polygon_normal(CoordinateSystem cs = CS_default);
|
||
|
|
|
||
|
|
INLINE bool triangulate_into(EggGroupNode *container, bool convex_also) const;
|
||
|
|
PT(EggPolygon) triangulate_in_place(bool convex_also);
|
||
|
|
|
||
|
|
virtual void write(std::ostream &out, int indent_level) const override;
|
||
|
|
|
||
|
|
private:
|
||
|
|
bool decomp_concave(EggGroupNode *container, int asum, int x, int y) const;
|
||
|
|
bool triangulate_poly(EggGroupNode *container, bool convex_also);
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
static TypeHandle get_class_type() {
|
||
|
|
return _type_handle;
|
||
|
|
}
|
||
|
|
static void init_type() {
|
||
|
|
EggPrimitive::init_type();
|
||
|
|
register_type(_type_handle, "EggPolygon",
|
||
|
|
EggPrimitive::get_class_type());
|
||
|
|
}
|
||
|
|
virtual TypeHandle get_type() const override {
|
||
|
|
return get_class_type();
|
||
|
|
}
|
||
|
|
virtual TypeHandle force_init_type() override {
|
||
|
|
init_type();
|
||
|
|
return get_class_type();
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
static TypeHandle _type_handle;
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
#include "eggPolygon.I"
|
||
|
|
|
||
|
|
#endif
|