99 lines
3.4 KiB
TypeScript
99 lines
3.4 KiB
TypeScript
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module es {
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export class MatrixHelper {
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/**
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* 创建一个新的Matrix2D，其中包含两个矩阵的和
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* @param matrix1
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* @param matrix2
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*/
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public static add(matrix1: Matrix2D, matrix2: Matrix2D): Matrix2D {
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let result = Matrix2D.identity;
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result.m11 = matrix1.m11 + matrix2.m11;
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result.m12 = matrix1.m12 + matrix2.m12;
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result.m21 = matrix1.m21 + matrix2.m21;
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result.m22 = matrix1.m22 + matrix2.m22;
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result.m31 = matrix1.m31 + matrix2.m31;
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result.m32 = matrix1.m32 + matrix2.m32;
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return result;
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}
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/**
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* 将一个Matrix2D的元素除以另一个矩阵的元素
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* @param matrix1
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* @param matrix2
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*/
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public static divide(matrix1: Matrix2D, matrix2: Matrix2D) {
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let result = Matrix2D.identity;
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result.m11 = matrix1.m11 / matrix2.m11;
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result.m12 = matrix1.m12 / matrix2.m12;
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result.m21 = matrix1.m21 / matrix2.m21;
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result.m22 = matrix1.m22 / matrix2.m22;
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result.m31 = matrix1.m31 / matrix2.m31;
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result.m32 = matrix1.m32 / matrix2.m32;
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return result;
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}
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/**
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* 创建一个新的Matrix2D，包含两个矩阵的乘法
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* @param matrix1
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* @param matrix2
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*/
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public static mutiply(matrix1: Matrix2D, matrix2: Matrix2D | number) {
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let result = Matrix2D.identity;
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if (matrix2 instanceof Matrix2D) {
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let m11 = (matrix1.m11 * matrix2.m11) + (matrix1.m12 * matrix2.m21);
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let m12 = (matrix2.m11 * matrix2.m12) + (matrix1.m12 * matrix2.m22);
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let m21 = (matrix1.m21 * matrix2.m11) + (matrix1.m22 * matrix2.m21);
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let m22 = (matrix1.m21 * matrix2.m12) + (matrix1.m22 * matrix2.m22);
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let m31 = (matrix1.m31 * matrix2.m11) + (matrix1.m32 * matrix2.m21) + matrix2.m31;
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let m32 = (matrix1.m31 * matrix2.m12) + (matrix1.m32 * matrix2.m22) + matrix2.m32;
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result.m11 = m11;
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result.m12 = m12;
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result.m21 = m21;
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result.m22 = m22;
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result.m31 = m31;
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result.m32 = m32;
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} else if (typeof matrix2 == "number"){
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result.m11 = matrix1.m11 * matrix2;
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result.m12 = matrix1.m12 * matrix2;
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result.m21 = matrix1.m21 * matrix2;
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result.m22 = matrix1.m22 * matrix2;
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result.m31 = matrix1.m31 * matrix2;
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result.m32 = matrix1.m32 * matrix2;
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}
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return result;
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}
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/**
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* 创建一个新的Matrix2D，包含一个矩阵与另一个矩阵的减法。
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* @param matrix1
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* @param matrix2
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*/
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public static subtract(matrix1: Matrix2D, matrix2: Matrix2D) {
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let result = Matrix2D.identity;
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result.m11 = matrix1.m11 - matrix2.m11;
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result.m12 = matrix1.m12 - matrix2.m12;
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result.m21 = matrix1.m21 - matrix2.m21;
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result.m22 = matrix1.m22 - matrix2.m22;
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result.m31 = matrix1.m31 - matrix2.m31;
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result.m32 = matrix1.m32 - matrix2.m32;
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return result;
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}
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}
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}
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