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