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#pragma once
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#ifndef BASE_FUNCTION_EXTEND
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#define BASE_FUNCTION_EXTEND
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#include "SSBase/DrawModel/BaseFunction.h"
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class AFX_EXT_CLASS CBaseFunctionExtend :public CBaseFunction
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{
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public:
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CBaseFunctionExtend();
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virtual ~CBaseFunctionExtend();
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public:
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int IsSegmentCross(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4);
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int LineCrossPoint(double x1, double y1, double k1, double x2, double y2, double k2, double& x0, double& y0);
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double DotProduct(double x1, double y1, double x2, double y2);
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double CrossProduct(double x1, double y1, double x2, double y2);
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//计算直线与线段的交点，成功返回1，若无，返回0，若重合，返回2.
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//参数 a,b为直线向量，lx0,ly0为直线上一点坐标，（sx1,sy1)(sx2,sy2)为线段两端点，若存在交点(cx,cy)为交点坐标
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int SegLineCrossPoint(double a, double b, double lx0, double ly0,
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double sx1, double sy1, double sx2, double sy2, double& cx, double& cy);
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//计算三角形A(x1,y1) B(x2,y2) C(x3,y3)，顶点B的角平分线与AC边交点(x0,y0)如果ABC共线，求角平分线上距离为1任意一点
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bool GetAngularBisector(double x1, double y1, double x2, double y2, double x3, double y3, double& x0, double& y0);
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};
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#endif
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