Vector3.html 12 KB

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  1. <!DOCTYPE html>
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  3. <head>
  4. <meta charset="utf-8" />
  5. <base href="../../" />
  6. <script src="list.js"></script>
  7. <script src="page.js"></script>
  8. <link type="text/css" rel="stylesheet" href="page.css" />
  9. </head>
  10. <body>
  11. <h1>[name]</h1>
  12. <div class="desc">3D vector.</div>
  13. <h2>Example</h2>
  14. <code>var a = new THREE.Vector3( 1, 0, 0 );
  15. var b = new THREE.Vector3( 0, 1, 0 );
  16. var c = new THREE.Vector3();
  17. c.crossVectors( a, b );
  18. </code>
  19. <h2>Constructor</h2>
  20. <h3>[name]( [page:Float x], [page:Float y], [page:Float z] )</h3>
  21. <div>
  22. x -- [page:Float] the vector's x value <br />
  23. y -- [page:Float] the vector's y value <br />
  24. z -- [page:Float] the vector's z value
  25. </div>
  26. <div>
  27. A 3 dimensional vector
  28. </div>
  29. <h2>Properties</h2>
  30. <h3>[property:Float x]</h3>
  31. <h3>[property:Float y]</h3>
  32. <h3>[property:Float z]</h3>
  33. <h2>Methods</h2>
  34. <h3>[method:Vector3 set]( [page:Float x], [page:Float y], [page:Float z] ) [page:Vector3 this]</h3>
  35. <div>
  36. Sets value of this vector.
  37. </div>
  38. <h3>[method:Vector3 setX]( [page:Float x] ) [page:Vector3 this]</h3>
  39. <div>
  40. Sets x value of this vector.
  41. </div>
  42. <h3>[method:Vector3 setY]( [page:Float y] ) [page:Vector3 this]</h3>
  43. <div>
  44. Sets y value of this vector.
  45. </div>
  46. <h3>[method:Vector3 setZ]( [page:Float z] ) [page:Vector3 this]</h3>
  47. <div>
  48. Sets z value of this vector.
  49. </div>
  50. <h3>[method:Vector3 copy]( [page:Vector3 v] ) [page:Vector3 this]</h3>
  51. <div>
  52. Copies value of *v* to this vector.
  53. </div>
  54. <h3>[method:Vector3 add]( [page:Vector3 v] ) [page:Vector3 this]</h3>
  55. <div>
  56. Adds *v* to this vector.
  57. </div>
  58. <h3>[method:Vector3 addVectors]( [page:Vector3 a], [page:Vector3 b] ) [page:Vector3 this]</h3>
  59. <div>
  60. Sets this vector to *a + b*.
  61. </div>
  62. <h3>[method:Vector3 sub]( [page:Vector3 v] ) [page:Vector3 this]</h3>
  63. <div>
  64. Subtracts *v* from this vector.
  65. </div>
  66. <h3>[method:Vector3 subVectors]( [page:Vector3 a], [page:Vector3 b] ) [page:Vector3 this]</h3>
  67. <div>
  68. Sets this vector to *a - b*.
  69. </div>
  70. <h3>[method:Vector3 multiplyScalar]( [page:Float s] ) [page:Vector3 this]</h3>
  71. <div>
  72. Multiplies this vector by scalar *s*.
  73. </div>
  74. <h3>[method:Vector3 divideScalar]( [page:Float s] ) [page:Vector3 this]</h3>
  75. <div>
  76. Divides this vector by scalar *s*.<br />
  77. Set vector to *( 0, 0, 0 )* if *s == 0*.
  78. </div>
  79. <h3>[method:Vector3 negate]() [page:Vector3 this]</h3>
  80. <div>
  81. Inverts this vector.
  82. </div>
  83. <h3>[method:Float dot]( [page:Vector3 v] )</h3>
  84. <div>
  85. Computes dot product of this vector and *v*.
  86. </div>
  87. <h3>[method:Float lengthSq]()</h3>
  88. <div>
  89. Computes squared length of this vector.
  90. </div>
  91. <h3>[method:Float length]()</h3>
  92. <div>
  93. Computes length of this vector.
  94. </div>
  95. <h3>[method:Float lengthManhattan]()</h3>
  96. <div>
  97. Computes Manhattan length of this vector.<br />
  98. [link:http://en.wikipedia.org/wiki/Taxicab_geometry]
  99. </div>
  100. <h3>[method:Vector3 normalize]() [page:Vector3 this]</h3>
  101. <div>
  102. Normalizes this vector. Transforms this Vector into a Unit vector by dividing the vector by it's length.
  103. </div>
  104. <h3>[method:Float distanceTo]( [page:Vector3 v] )</h3>
  105. <div>
  106. Computes distance of this vector to *v*.
  107. </div>
  108. <h3>[method:Float distanceToSquared]( [page:Vector3 v] )</h3>
  109. <div>
  110. Computes squared distance of this vector to *v*.
  111. </div>
  112. <h3>[method:Vector3 setLength]( [page:Float l] ) [page:Vector3 this]</h3>
  113. <div>
  114. Normalizes this vector and multiplies it by *l*.
  115. </div>
  116. <h3>[method:Vector3 cross]( [page:Vector3 v] ) [page:Vector3 this]</h3>
  117. <div>
  118. Sets this vector to cross product of itself and *v*.
  119. </div>
  120. <h3>[method:Vector3 crossVectors]( [page:Vector3 a], [page:Vector3 b] ) [page:Vector3 this]</h3>
  121. <div>
  122. Sets this vector to cross product of *a* and *b*.
  123. </div>
  124. <h3>[method:Vector3 setFromMatrixPosition]( [page:Matrix4 m] ) [page:Vector3 this]</h3>
  125. <div>
  126. Sets this vector extracting position from matrix transform.
  127. </div>
  128. <h3>[method:Vector3 setFromMatrixScale]( [page:Matrix4 m] ) [page:Vector3 this]</h3>
  129. <div>
  130. Sets this vector extracting scale from matrix transform.
  131. </div>
  132. <h3>[method:Boolean equals]( [page:Vector3 v] )</h3>
  133. <div>
  134. Checks for strict equality of this vector and *v*.
  135. </div>
  136. <h3>[method:Vector3 clone]()</h3>
  137. <div>
  138. Clones this vector.
  139. </div>
  140. <h3>[method:Vector3 clamp]([page:Vector3 min], [page:Vector3 max]) [page:Vector3 this]</h3>
  141. <div>
  142. min -- [page:Vector3] <br />
  143. max -- [page:Vector3]
  144. </div>
  145. <div>
  146. If this vector's x, y or z value is greater than the max vector's x, y or z value, it is replaced by the corresponding value. <br /><br />
  147. If this vector's x, y or z value is less than the min vector's x, y or z value, it is replace by the corresponding value.
  148. </div>
  149. <h3>[method:Vector3 clampScalar]([page:Float min], [page:Float max]) [page:Vector3 this]</h3>
  150. <div>
  151. min -- [page:Float] the minimum value the components will be clamped to <br />
  152. max -- [page:Float] the maximum value the components will be clamped to
  153. </div>
  154. <div>
  155. If this vector's x, y or z values are greater than the max value, they are replaced by the max value. <br /> If this vector's x, y or z values are less than the min value, they are replace by the min value.
  156. </div>
  157. <h3>[method:Vector3 floor]()</h3>
  158. <div>
  159. The components of the vector are rounded downwards (towards negative infinity) to an integer value.
  160. </div>
  161. <h3>[method:Vector3 ceil]()</h3>
  162. <div>
  163. The components of the vector are rounded upwards (towards positive infinity) to an integer value.
  164. </div>
  165. <h3>[method:Vector3 round]()</h3>
  166. <div>
  167. The components of the vector are rounded towards the nearest integer value.
  168. </div>
  169. <h3>[method:Vector3 roundToZero]()</h3>
  170. <div>
  171. The components of the vector are rounded towards zero (up if negative, down if positive) to an integer value.
  172. </div>
  173. <h3>[method:Vector3 applyMatrix3]([page:Matrix3 m]) [page:Vector3 this]</h3>
  174. <div>
  175. m -- [page:Matrix3]
  176. </div>
  177. <div>
  178. Multiplies this vector times a 3 x 3 matrix.
  179. </div>
  180. <h3>[method:Vector3 applyMatrix4]([page:Matrix3 m]) [page:Vector3 this]</h3>
  181. <div>
  182. m -- [page:Matrix4]
  183. </div>
  184. <div>
  185. Multiplies this vector by 4 x 3 subset of a Matrix4.
  186. </div>
  187. <h3>[method:Vector3 projectOnPlane]([page:Vector3 planeNormal]) [page:Vector3 this]</h3>
  188. <div>
  189. planeNormal -- [page:Vector3 planeNormal] A vector representing a plane normal.
  190. </div>
  191. <div>
  192. Projects this vector onto a plane by subtracting this vector projected onto the plane's normal from this vector.
  193. </div>
  194. <h3>[method:Vector3 projectOnVector]([page:Vector3]) [page:Vector3 this]</h3>
  195. <div>
  196. vector -- [page:Vector3]
  197. </div>
  198. <div>
  199. Projects this vector onto another vector.
  200. </div>
  201. <h3>[method:Vector3 addScalar]([page:Float]) [page:Vector3 this]</h3>
  202. <div>
  203. s -- [page:Float]
  204. </div>
  205. <div>
  206. Adds a s to this vector.
  207. </div>
  208. <h3>[method:Vector3 divide]([page:Vector3 v]) [page:Vector3 this]</h3>
  209. <div>
  210. v -- [page:Vector3]
  211. </div>
  212. <div>
  213. Divides this vector by vector v.
  214. </div>
  215. <h3>[method:Vector3 min]([page:Vector3 v]) [page:Vector3 this]</h3>
  216. <div>
  217. v -- [page:Vector3]
  218. </div>
  219. <div>
  220. If this vector's x, y, or z value is less than vector v's x, y, or z value, that value is replaced by the corresponding vector v value.
  221. </div>
  222. <h3>[method:Vector3 max]([page:Vector3 v]) [page:Vector3 this]</h3>
  223. <div>
  224. v -- [page:Vector3]
  225. </div>
  226. <div>
  227. If this vector's x, y, or z value is greater than vector v's x, y, or z value, that value is replaced by the corresponding vector v value.
  228. </div>
  229. <h3>[method:Vector3 setComponent]([page:Integer index], [page:Float value]) [page:Vector3 this]</h3>
  230. <div>
  231. index -- 0, 1, or 2 <br />
  232. value -- [page:Float]
  233. </div>
  234. <div>
  235. If index equals 0 the method sets this vector's x value to value <br />
  236. If index equals 1 the method sets this vector's y value to value <br />
  237. If index equals 2 the method sets this vector's z value to value
  238. </div>
  239. <h3>[method:Vector3 transformDirection]([page:Matrix4 m]) [page:Vector3 this]</h3>
  240. <div>
  241. m -- [page:Matrix4]
  242. </div>
  243. <div>
  244. Transforms the direction of this vector by a matrix (a 3 x 3 subset of a Matrix4) and then normalizes the result.
  245. </div>
  246. <h3>[method:Vector3 multiplyVectors]([page:Vector3 a], [page:Vector3 b]) [page:Vector3 this]</h3>
  247. <div>
  248. a -- [page:Vector3] <br />
  249. b -- [page:Vector3]
  250. </div>
  251. <div>
  252. Sets this vector equal to the result of multiplying vector a by vector b.
  253. </div>
  254. <h3>[method:Float getComponent]([page:Integer index])</h3>
  255. <div>
  256. index -- [page:Integer] 0, 1, or 2
  257. </div>
  258. <div>
  259. Returns the value of the vector component x, y, or z by an index. <br /><br />
  260. Index 0: x <br />
  261. Index 1: y <br />
  262. Index 2: z <br />
  263. </div>
  264. <h3>[method:Vector3 applyAxisAngle]([page:Vector3 axis], [page:Float angle]) [page:Vector3 this]</h3>
  265. <div>
  266. axis -- A normalized [page:Vector3] <br />
  267. angle -- An angle in radians
  268. </div>
  269. <div>
  270. Applies a rotation specified by an axis and an angle to this vector.
  271. </div>
  272. <h3>[method:Vector3 lerp]([page:Vector3 v], [page:Float alpha]) [page:Vector3 this]</h3>
  273. <div>
  274. v -- [page:Vector3] <br />
  275. alpha -- [page:Float] between 0 and 1.
  276. </div>
  277. <div>
  278. Linear Interpolation between this vector and vector v, where alpha is the percent along the line.
  279. </div>
  280. <h3>[method:Vector3 lerpVectors]([page:Vector3 v1], [page:Vector3 v2], [page:Float alpha]) [page:Vector3 this]</h3>
  281. <div>
  282. v1 -- [page:Vector3] <br />
  283. v2 -- [page:Vector3] <br />
  284. alpha -- [page:Float] between 0 and 1.
  285. </div>
  286. <div>
  287. Sets this vector to be the vector linearly interpolated between *v1* and *v2* with *alpha* factor.
  288. </div>
  289. <h3>[method:Float angleTo]([page:Vector3 v])</h3>
  290. <div>
  291. v -- [page:Vector3]
  292. </div>
  293. <div>
  294. Returns the angle between this vector and vector v in radians.
  295. </div>
  296. <h3>[method:Vector3 setFromMatrixColumn]([page:Integer index], [page:Matrix4 matrix]) [page:Vector3 this]</h3>
  297. <div>
  298. index -- 0, 1, 2, or 3 <br />
  299. matrix -- [page:Matrix4]
  300. </div>
  301. <div>
  302. Sets this vector's x, y, and z equal to the column of the matrix specified by the index.
  303. </div>
  304. <h3>[method:Vector3 reflect]([page:Vector3 normal]) [page:Vector3 this]</h3>
  305. <div>
  306. normal -- [page:Vector3] the normal to the reflecting plane
  307. </div>
  308. <div>
  309. Reflect incident vector off of plane orthogonal to normal. normal is assumed to have unit length.
  310. </div>
  311. <h3>[method:Vector3 fromArray]([page:Array array]) [page:Vector3 this]</h3>
  312. <div>
  313. array -- [page:Array] [x, y, z]
  314. </div>
  315. <div>
  316. Sets the vector's components based on an array formatted like [x, y, z]
  317. </div>
  318. <h3>[method:Vector3 multiply]([page:Vector3 v]) [page:Vector3 this]</h3>
  319. <div>
  320. v -- [page:Vector3] <br />
  321. </div>
  322. <div>
  323. Multipies this vector by vector v.
  324. </div>
  325. <h3>[method:Vector3 applyProjection]([page:Matrix4 m]) [page:Vector3 this]</h3>
  326. <div>
  327. m -- [page:Matrix4] projection matrix.
  328. </div>
  329. <div>
  330. Multiplies this vector and m, and divides by perspective.
  331. </div>
  332. <h3>[method:Array toArray]( [page:Array array] )</h3>
  333. <div>
  334. array -- Optional array to store the vector.
  335. </div>
  336. <div>
  337. Assigns this vector's x value to array[0]. <br />
  338. Assigns this vector's y value to array[1]. <br />
  339. Assigns this vector's z value to array[2]. <br />
  340. Returns the created array.
  341. </div>
  342. <h3>[method:Vector3 applyEuler]([page:Euler euler]) [page:Vector3 this]</h3>
  343. <div>
  344. euler -- [page:Euler]
  345. </div>
  346. <div>
  347. Applies euler transform to this vector by converting the [page:Euler] obect to a [page:Quaternion] and applying.
  348. </div>
  349. <h3>[method:Vector3 applyQuaternion]([page:Quaternion quaternion]) [page:Vector3 this]</h3>
  350. <div>
  351. quaternion -- [page:Quaternion]
  352. </div>
  353. <div>
  354. Applies a [page:Quaternion] transform to this vector.
  355. </div>
  356. <h3>[method:Vector3 project]( [page:Camera camera] )</h3>
  357. <div>
  358. [page:Camera camera] — camera to use in the projection.<br />
  359. </div>
  360. <div>
  361. Projects the vector with the camera.
  362. </div>
  363. <h3>[method:Vector3 unproject]( [page:Camera camera] )</h3>
  364. <div>
  365. [page:Camera camera] — camera to use in the projection.<br />
  366. </div>
  367. <div>
  368. Unprojects the vector with the camera.
  369. </div>
  370. <h2>Source</h2>
  371. [link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
  372. </body>
  373. </html>