Create HouseTextureMapping

HouseTextureMapping/P3.cpp

@@ -0,0 +1,110 @@
+// P3.cpp: implementation of the CP3 class.
+//
+//////////////////////////////////////////////////////////////////////
+
+#include "stdafx.h"
+#include "Test.h"
+#include "P3.h"
+#include "math.h"
+#ifdef _DEBUG
+#undef THIS_FILE
+static char THIS_FILE[]=__FILE__;
+#define new DEBUG_NEW
+#endif
+
+//////////////////////////////////////////////////////////////////////
+// Construction/Destruction
+//////////////////////////////////////////////////////////////////////
+
+CP3::CP3()
+{
+	z=0.0;
+}
+
+CP3::~CP3()
+{
+
+}
+CP3::CP3(double x,double y,double z):CP2(x,y)
+{
+	this->z=z;
+}
+
+CP3 operator +(const CP3 &p0,const CP3 &p1)//和
+{	
+	CP3 p;
+	p.x=p0.x+p1.x;
+	p.y=p0.y+p1.y;
+	p.z=p0.z+p1.z;
+	return p;
+}
+
+CP3 operator -(const CP3 &p0,const CP3 &p1)//差
+{
+	CP3 p;
+	p.x=p0.x-p1.x;
+	p.y=p0.y-p1.y;
+	p.z=p0.z-p1.z;
+	return p;
+}
+
+CP3 operator *(const CP3 &p,double k)//点和常量的积
+{	
+	return CP3(p.x*k,p.y*k,p.z*k);
+}
+
+CP3 operator *(double k,const CP3 &p)//点和常量的积
+{	
+	return CP3(p.x*k,p.y*k,p.z*k);
+}
+
+CP3 operator /(const CP3 &p0,double k)//数除
+{
+	if(fabs(k)<1e-6)
+		k=1.0;
+	CP3 p;
+	p.x=p0.x/k;
+	p.y=p0.y/k;
+	p.z=p0.z/k;
+	return p;
+}
+
+CP3 operator+=(CP3 &p0,CP3 &p1)
+{
+	p0.x=p0.x+p1.x;
+	p0.y=p0.y+p1.y;
+	p0.z=p0.z+p1.z;
+	return p0;
+}
+
+CP3 operator-=(CP3 &p0,CP3 &p1)
+{
+	p0.x=p0.x-p1.x;
+	p0.y=p0.y-p1.y;
+	p0.z=p0.z-p1.z;
+	return p0;
+}
+
+CP3 operator*=(CP3 &p0,double k)
+{
+	p0.x=p0.x*k;
+	p0.y=p0.y*k;
+	p0.z=p0.z*k;
+	return p0;
+}
+
+CP3 operator/=(CP3 &p0,double k)
+{
+	if(fabs(k)<1e-6)
+		k=1.0;
+	p0.x=p0.x/k;
+	p0.y=p0.y/k;
+	p0.z=p0.z/k;
+	return p0;
+}
+
+double CP3::Mag()//长度
+{
+	return sqrt(x*x+y*y+z*z);
+}
+