縮放在目前代碼只有3D的,2D自己想想(╯▽╰)吧

投影矩陣公式: 3D

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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks;namespace ConsoleApplication6 {class Matrix3x3 {public double m11, m12, m13;public double m21, m22, m23;public double m31, m32, m33;#region 縮放public static Matrix3x3 setUpScale(float Kx, float Ky, float Kz){Matrix3x3 m = new Matrix3x3();m.m11 = Kx; m.m12 = 0; m.m13 = 0;m.m11 = 0; m.m12 = Ky; m.m13 = 0;m.m11 = 0; m.m12 = 0; m.m13 = Kz;return m;}public static Matrix3x3 setUpScale(Vector3 v){Matrix3x3 m = new Matrix3x3();m.m11 = v.x; m.m12 = 0; m.m13 = 0;m.m11 = 0; m.m12 = v.y; m.m13 = 0;m.m11 = 0; m.m12 = 0; m.m13 = v.z;return m;}#endregion#region 正交投影/// <summary>/// 投影到xy,xz,yz其中一個(gè)平面/// </summary>/// <param name="axis">1=xy,2=xz,3=yz</param>public void setUpProject(int axis) {switch (axis){case 1://xy平面m11 = 1; m12 = 0; m13 =0;m21 = 0; m22 = 1; m23 =0;m31 = 0; m32 = 0; m33 =0;break;case 2://xz平面m11 = 1; m12 = 0; m13 =0;m21 = 0; m22 = 0; m23 =0;m31 = 0; m32 = 0; m33 =1;break;case 3://yz平面m11 = 0; m12 = 0; m13 =0;m21 = 0; m22 = 1; m23 =0;m31 = 0; m32 = 0; m33 =1;break;}}//投影到任意一個(gè)平面public void setUpProject(Vector3 v) {m11 = 1 - v.x * v.x;m22 = 1 - v.y * v.y;m33 = 1 - v.z * v.z;m12 = m21 = -v.x * v.y;m13 = m31 = -v.x * v.z;m23 = m32 = -v.y * v.z;}#endregion }class Vector3 {public double x, y, z;public Vector3(double x, double y, double z) {this.x = x;this.y = y;this.z = z;}public override string ToString(){return string.Format("{0} {1} {2}", x, y, z);}}}

轉(zhuǎn)載于:https://www.cnblogs.com/plateFace/p/4458527.html

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