daid303
84 linhas
2.1 KiB
C++
84 linhas
2.1 KiB
C++
/** Copyright (C) 2013 David Braam - Released under terms of the AGPLv3 License */
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#ifndef FLOAT_POINT_H
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#define FLOAT_POINT_H
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/*
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Floating point 3D points are used during model loading as 3D vectors.
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They represent millimeters in 3D space.
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*/
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#include "utils/intpoint.h"
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#include <stdint.h>
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#include <math.h>
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class FPoint3
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{
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public:
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double x,y,z;
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FPoint3() {}
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FPoint3(double _x, double _y, double _z): x(_x), y(_y), z(_z) {}
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FPoint3 operator+(const FPoint3& p) const { return FPoint3(x+p.x, y+p.y, z+p.z); }
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FPoint3 operator-(const FPoint3& p) const { return FPoint3(x-p.x, y-p.y, z-p.z); }
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FPoint3 operator*(const double f) const { return FPoint3(x*f, y*f, z*f); }
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FPoint3 operator/(const double f) const { return FPoint3(x/f, y/f, z/f); }
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FPoint3& operator += (const FPoint3& p) { x += p.x; y += p.y; z += p.z; return *this; }
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FPoint3& operator -= (const FPoint3& p) { x -= p.x; y -= p.y; z -= p.z; return *this; }
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bool operator==(FPoint3& p) const { return x==p.x&&y==p.y&&z==p.z; }
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bool operator!=(FPoint3& p) const { return x!=p.x||y!=p.y||z!=p.z; }
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double max()
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{
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if (x > y && x > z) return x;
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if (y > z) return y;
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return z;
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}
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bool testLength(double len)
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{
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return vSize2() <= len*len;
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}
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double vSize2()
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{
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return x*x+y*y+z*z;
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}
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double vSize()
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{
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return sqrt(vSize2());
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}
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};
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class FMatrix3x3
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{
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public:
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double m[3][3];
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FMatrix3x3()
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{
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m[0][0] = 1.0;
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m[1][0] = 0.0;
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m[2][0] = 0.0;
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m[0][1] = 0.0;
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m[1][1] = 1.0;
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m[2][1] = 0.0;
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m[0][2] = 0.0;
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m[1][2] = 0.0;
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m[2][2] = 1.0;
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}
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Point3 apply(FPoint3 p)
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{
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return Point3(
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(p.x * m[0][0] + p.y * m[1][0] + p.z * m[2][0]) * 1000.0,
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(p.x * m[0][1] + p.y * m[1][1] + p.z * m[2][1]) * 1000.0,
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(p.x * m[0][2] + p.y * m[1][2] + p.z * m[2][2]) * 1000.0);
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}
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};
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#endif//INT_POINT_H
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