68 lines
1.4 KiB
C++
68 lines
1.4 KiB
C++
//-----------------------------------------------------------------------------+
|
||
// Copyright (C), 1998-2007, SH Software Co. Ltd.
|
||
// = FileName : XTriangle类
|
||
// = Version : ver2.0
|
||
// = Author : zjq
|
||
// = CreateDate : 2002-09-09
|
||
// = Description: XTriangle类声明
|
||
// = Maintainers:
|
||
//
|
||
//-----------------------------------------------------------------------------+
|
||
#ifndef _XTRIANGLE_H_
|
||
#define _XTRIANGLE_H_
|
||
|
||
#ifndef _XPOINT_H_
|
||
#include "XPoint.h"
|
||
#endif
|
||
|
||
#ifndef _X3DFACE_H_
|
||
#include "X3DFace.h"
|
||
#endif
|
||
|
||
#define SIDE1_INVISIBLE 0x01
|
||
#define SIDE2_INVISIBLE 0x02
|
||
#define SIDE3_INVISIBLE 0x04
|
||
|
||
// 用三角形拼多边形
|
||
class GEOAPI XTriangle
|
||
{
|
||
public:
|
||
|
||
XTriangle(const XPoint &pt1, const XPoint &pt2, const XPoint &pt3, int nFlag=0);
|
||
virtual ~XTriangle();
|
||
|
||
void Ecs2Wcs(XVector3D vtEcs);
|
||
void Wcs2Ecs(XVector3D vtEcs);
|
||
|
||
void AsFace(X3DFace &face) const;
|
||
|
||
int IsLinear();
|
||
int IsInvisible();
|
||
|
||
// 1~3－命中1～3点；-1~-3 －命中1~3边；0－外部；4－内部
|
||
int HitTest2d(const XPoint &ptTest) const;
|
||
|
||
enum HitType
|
||
{
|
||
HIT_SIDE1 = -1, //边1
|
||
HIT_SIDE2 = -2, //边2
|
||
HIT_SIDE3 = -3, //边3
|
||
|
||
HIT_OUTSIDE = 0, //外部
|
||
|
||
HIT_VERTEX1 = 1, //顶点1
|
||
HIT_VERTEX2 = 2, //顶点2
|
||
HIT_VERTEX3 = 3, //顶点3
|
||
|
||
HIT_INSIDE = 4 //内部
|
||
};
|
||
|
||
public:
|
||
|
||
int m_nFlag;
|
||
|
||
XPoint vertex1, vertex2, vertex3;
|
||
};
|
||
#endif
|
||
|