cornerstone-math

<!doctype html> <html lang="en"> <head> <title>Code coverage report for src\matrix4.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../prettify.css" /> <link rel="stylesheet" href="../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../index.html">all files</a> / <a href="index.html">src/</a> matrix4.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 8.7% Statements 18/207 </div> <div class='fl pad1y space-right2'> 72.73% Branches 32/44 </div> <div class='fl pad1y space-right2'> 9.09% Functions 1/11 </div> <div class='fl pad1y space-right2'> 3.51% Lines 6/171 </div> </div> </div> <div class='status-line low'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295</td><td class="line-coverage quiet">            4×         4×   4× 4× 4× 4×                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            </td><td class="text"><pre class="prettyprint lang-js">import Vector3 from './vector3.js';   // Based on THREE.JS class Matrix4 {   constructor (n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44) { this.elements = new Float32Array(16);   // TODO: if n11 is undefined, then just set to identity, otherwise copy all other values into matrix // We should not support semi specification of Matrix4, it is just weird.   const te = this.elements;   te[0] = (n11 !== undefined) ? n11 : 1; te[4] = n12 || 0; te[8] = n13 || 0; te[12] = n14 || 0; te[1] = n21 || 0; te[5] = (n22 !== undefined) ? n22 : 1; te[9] = n23 || 0; te[13] = n24 || 0; te[2] = n31 || 0; te[6] = n32 || 0; te[10] = (n33 !== undefined) ? n33 : 1; te[14] = n34 || 0; te[3] = n41 || 0; te[7] = n42 || 0; te[11] = n43 || 0; te[15] = (n44 !== undefined) ? n44 : 1;   }   makeRotationFromQuaternion (q) { const te = this.elements;   let x = q.x, y = q.y, z = q.z, w = q.w; let x2 = x + x, y2 = y + y, z2 = z + z; let xx = x * x2, xy = x * y2, xz = x * z2; let yy = y * y2, yz = y * z2, zz = z * z2; let wx = w * x2, wy = w * y2, wz = w * z2;   te[0] = 1 - (yy + zz); te[4] = xy - wz; te[8] = xz + wy;   te[1] = xy + wz; te[5] = 1 - (xx + zz); te[9] = yz - wx;   te[2] = xz - wy; te[6] = yz + wx; te[10] = 1 - (xx + yy);   // Last column te[3] = 0; te[7] = 0; te[11] = 0;   // Bottom row te[12] = 0; te[13] = 0; te[14] = 0; te[15] = 1;   return this; }   multiplyMatrices (a, b) { const ae = a.elements; const be = b.elements; const te = this.elements;   let a11 = ae[0], a12 = ae[4], a13 = ae[8], a14 = ae[12]; let a21 = ae[1], a22 = ae[5], a23 = ae[9], a24 = ae[13]; let a31 = ae[2], a32 = ae[6], a33 = ae[10], a34 = ae[14]; let a41 = ae[3], a42 = ae[7], a43 = ae[11], a44 = ae[15];   let b11 = be[0], b12 = be[4], b13 = be[8], b14 = be[12]; let b21 = be[1], b22 = be[5], b23 = be[9], b24 = be[13]; let b31 = be[2], b32 = be[6], b33 = be[10], b34 = be[14]; let b41 = be[3], b42 = be[7], b43 = be[11], b44 = be[15];   te[0] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41; te[4] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42; te[8] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43; te[12] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;   te[1] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41; te[5] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42; te[9] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43; te[13] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;   te[2] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41; te[6] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42; te[10] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43; te[14] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;   te[3] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41; te[7] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42; te[11] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43; te[15] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;   return this; }   multiply (m, n) {   if (n !== undefined) {   console.warn('DEPRECATED: Matrix4\'s .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.');   return this.multiplyMatrices(m, n); }   return this.multiplyMatrices(this, m); }   getInverse (m, throwOnInvertible) {   // Based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm const te = this.elements; const me = m.elements;   let n11 = me[0], n12 = me[4], n13 = me[8], n14 = me[12]; let n21 = me[1], n22 = me[5], n23 = me[9], n24 = me[13]; let n31 = me[2], n32 = me[6], n33 = me[10], n34 = me[14]; let n41 = me[3], n42 = me[7], n43 = me[11], n44 = me[15];   te[0] = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44; te[4] = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44; te[8] = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44; te[12] = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34; te[1] = n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44; te[5] = n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44; te[9] = n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44; te[13] = n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34; te[2] = n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44; te[6] = n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44; te[10] = n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44; te[14] = n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34; te[3] = n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43; te[7] = n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43; te[11] = n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43; te[15] = n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33;   const det = n11 * te[0] + n21 * te[4] + n31 * te[8] + n41 * te[12];   if (det === 0) {   const msg = 'Matrix4.getInverse(): can\'t invert matrix, determinant is 0';   if (throwOnInvertible || false) {   throw new Error(msg);   } else {   console.warn(msg);   }   this.identity();   return this; }   this.multiplyScalar(1 / det);   return this;   }   applyToVector3Array () {   const v1 = new Vector3();   return function (array, offset, length) {   if (offset === undefined) { offset = 0; } if (length === undefined) { length = array.length; }   for (var i = 0, j = offset; i < length; i += 3, j += 3) {   v1.x = array[j]; v1.y = array[j + 1]; v1.z = array[j + 2];   v1.applyMatrix4(this);   array[j] = v1.x; array[j + 1] = v1.y; array[j + 2] = v1.z;   }   return array;   };   }   makeTranslation (x, y, z) {   this.set( 1, 0, 0, x, 0, 1, 0, y, 0, 0, 1, z, 0, 0, 0, 1 );   return this;   }   multiplyScalar (s) {   const te = this.elements;   te[0] *= s; te[4] *= s; te[8] *= s; te[12] *= s; te[1] *= s; te[5] *= s; te[9] *= s; te[13] *= s; te[2] *= s; te[6] *= s; te[10] *= s; te[14] *= s; te[3] *= s; te[7] *= s; te[11] *= s; te[15] *= s;   return this;   }   set (n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44) {   const te = this.elements;   te[0] = n11; te[4] = n12; te[8] = n13; te[12] = n14; te[1] = n21; te[5] = n22; te[9] = n23; te[13] = n24; te[2] = n31; te[6] = n32; te[10] = n33; te[14] = n34; te[3] = n41; te[7] = n42; te[11] = n43; te[15] = n44;   return this;   }   makeScale (x, y, z) {   this.set( x, 0, 0, 0, 0, y, 0, 0, 0, 0, z, 0, 0, 0, 0, 1 );   return this;   } }   export default Matrix4;  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Thu Jun 09 2022 09:24:32 GMT+0200 (Central European Summer Time) </div> </div> <script src="../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../sorter.js"></script> </body> </html>