Geometry.html 7.8 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="utf-8" />
  5. <script src="../../list.js"></script>
  6. <script src="../../page.js"></script>
  7. <link type="text/css" rel="stylesheet" href="../../page.css" />
  8. </head>
  9. <body>
  10. <h1>[name]</h1>
  11. <div class="desc">
  12. Base class for geometries.<br />
  13. A geometry holds all data necessary to describe a 3D model.
  14. </div>
  15. <h2>Example</h2>
  16. <code>var geometry = new THREE.Geometry()
  17. geometry.vertices.push( new THREE.Vector3( -10, 10, 0 ) );
  18. geometry.vertices.push( new THREE.Vector3( -10, -10, 0 ) );
  19. geometry.vertices.push( new THREE.Vector3( 10, -10, 0 ) );
  20. geometry.faces.push( new THREE.Face3( 0, 1, 2 ) );
  21. geometry.computeBoundingSphere();
  22. </code>
  23. <h2>Constructor</h2>
  24. <h3>[name]()</h3>
  25. <div>
  26. todo
  27. </div>
  28. <h2>Properties</h2>
  29. <h3>.[page:Integer id]</h3>
  30. <div>
  31. Unique number of this geometry instance
  32. </div>
  33. <h3>.[page:String name]</h3>
  34. <div>
  35. Name for this geometry. Default is an empty string.
  36. </div>
  37. <h3>.[page:Array vertices]</h3>
  38. <div>
  39. Array of [page:Vector3 vertices].<br />
  40. The array of vertices hold every position of points of the model.<br />
  41. To signal an update in this array, [page:Geometry Geometry.verticesNeedUpdate] needs to be set to true.
  42. </div>
  43. <h3>.[page:Array colors]</h3>
  44. <div>
  45. Array of vertex [page:Color colors], matching number and order of vertices.<br />
  46. Used in [page:ParticleSystem], [page:Line] and [page:Ribbon].<br />
  47. [page:Mesh Meshes] use per-face-use-of-vertex colors embedded directly in faces.<br />
  48. To signal an update in this array, [page:Geometry Geometry.colorsNeedUpdate] needs to be set to true.
  49. </div>
  50. <h3>.[page:Array normals]</h3>
  51. <div>
  52. Array of vertex [page:Vector3 normals], matching number and order of vertices.<br />
  53. [link:http://en.wikipedia.org/wiki/Normal_(geometry) Normal vectors] are nessecary for lighting <br />
  54. To signal an update in this array, [page:Geometry Geometry.normalsNeedUpdate] needs to be set to true.
  55. </div>
  56. <h3>.[page:Array faces]</h3>
  57. <div>
  58. Array of [page:Face3 triangles].<br />
  59. The array of faces describe how each vertex in the model is connected with each other.<br />
  60. To signal an update in this array, [page:Geometry Geometry.elementsNeedUpdate] needs to be set to true.
  61. </div>
  62. <h3>.[page:Array faceVertexUvs]</h3>
  63. <div>
  64. Array of face [page:UV] layers.<br />
  65. Each UV layer is an array of [page:UV] matching order and number of vertices in faces.<br />
  66. To signal an update in this array, [page:Geometry Geometry.uvsNeedUpdate] needs to be set to true.
  67. </div>
  68. <h3>.[page:Array morphTargets]</h3>
  69. <div>
  70. Array of morph targets. Each morph target is a Javascript object:
  71. <code>{ name: "targetName", vertices: [ new THREE.Vector3(), ... ] }</code>
  72. Morph vertices match number and order of primary vertices.
  73. </div>
  74. <h3>.[page:Array morphColors]</h3>
  75. <div>
  76. Array of morph colors. Morph colors have similar structure as morph targets, each color set is a Javascript object:
  77. <code>morphColor = { name: "colorName", colors: [ new THREE.Color(), ... ] }</code>
  78. Morph colors can match either number and order of faces (face colors) or number of vertices (vertex colors).
  79. </div>
  80. <h3>.[page:Array morphNormals]</h3>
  81. <div>
  82. Array of morph normals. Morph normals have similar structure as morph targets, each normal set is a Javascript object:
  83. <code>morphNormal = { name: "NormalName", normals: [ new THREE.Vector3(), ... ] }</code>
  84. </div>
  85. <h3>.[page:Array skinWeights]</h3>
  86. <div>
  87. Array of skinning weights, matching number and order of vertices.
  88. </div>
  89. <h3>.[page:Array skinIndices]</h3>
  90. <div>
  91. Array of skinning indices, matching number and order of vertices.
  92. </div>
  93. <h3>.[page:Object boundingBox]</h3>
  94. <div>
  95. Bounding box.
  96. <code>{ min: new THREE.Vector3(), max: new THREE.Vector3() }</code>
  97. </div>
  98. <h3>.[page:Object boundingSphere]</h3>
  99. <div>
  100. Bounding sphere.
  101. <code>{ radius: float }</code>
  102. </div>
  103. <h3>.[page:Boolean hasTangents]</h3>
  104. <div>
  105. True if geometry has tangents. Set in [page:Geometry Geometry.computeTangents].
  106. </div>
  107. <h3>.[page:Boolean dynamic]</h3>
  108. <div>
  109. Set to *true* if attribute buffers will need to change in runtime (using "dirty" flags).<br/>
  110. Unless set to true internal typed arrays corresponding to buffers will be deleted once sent to GPU.<br/>
  111. Defaults to true.
  112. </div>
  113. <h3>.[page:Boolean verticesNeedUpdate]</h3>
  114. <div>
  115. Set to *true* if the vertices array has been updated.
  116. </div>
  117. <h3>.[page:Boolean elementsNeedUpdate]</h3>
  118. <div>
  119. Set to *true* if the faces array has been updated.
  120. </div>
  121. <h3>.[page:Boolean uvsNeedUpdate]</h3>
  122. <div>
  123. Set to *true* if the uvs array has been updated.
  124. </div>
  125. <h3>.[page:Boolean normalsNeedUpdate]</h3>
  126. <div>
  127. Set to *true* if the normals array has been updated.
  128. </div>
  129. <h3>.[page:Boolean tangentsNeedUpdate]</h3>
  130. <div>
  131. Set to *true* if the tangents in the faces has been updated.
  132. </div>
  133. <h3>.[page:Boolean colorsNeedUpdate]</h3>
  134. <div>
  135. Set to *true* if the colors array has been updated.
  136. </div>
  137. <h3>.[page:Boolean lineDistancesNeedUpdate]</h3>
  138. <div>
  139. Set to *true* if the linedistances array has been updated.
  140. </div>
  141. <h3>.[page:Boolean buffersNeedUpdate]</h3>
  142. <div>
  143. Set to *true* if an array has changed in length.
  144. </div>
  145. <h3>.[page:array morphNormals]</h3>
  146. <div>
  147. todo
  148. </div>
  149. <h3>.[page:array lineDistances]</h3>
  150. <div>
  151. todo
  152. </div>
  153. <h2>Methods</h2>
  154. <h3>.applyMatrix( [page:Matrix4 matrix] )</h3>
  155. <div>
  156. Bakes matrix transform directly into vertex coordinates.
  157. </div>
  158. <h3>.computeCentroids()</h3>
  159. <div>
  160. Computes centroids for all faces.
  161. </div>
  162. <h3>.computeFaceNormals()</h3>
  163. <div>
  164. Computes face normals.
  165. </div>
  166. <h3>.computeVertexNormals()</h3>
  167. <div>
  168. Computes vertex normals by averaging face normals.<br />
  169. Face normals must be existing / computed beforehand.
  170. </div>
  171. <h3>.computeMorphNormals()</h3>
  172. <div>
  173. Computes morph normals.
  174. </div>
  175. <h3>.computeTangents()</h3>
  176. <div>
  177. Computes vertex tangents.<br />
  178. Based on [link:http://www.terathon.com/code/tangent.html]<br />
  179. Geometry must have vertex [page:UV UVs] (layer 0 will be used).
  180. </div>
  181. <h3>.computeBoundingBox()</h3>
  182. <div>
  183. Computes bounding box of the geometry, updating [page:Geometry Geometry.boundingBox] attribute.
  184. </div>
  185. <h3>.computeBoundingSphere()</h3>
  186. <div>
  187. Computes bounding sphere of the geometry, updating [page:Geometry Geometry.boundingSphere] attribute.
  188. </div>
  189. <div>Neither bounding boxes or bounding spheres are computed by default. They need to be explicitly computed, otherwise they are *null*.</div>
  190. <h3>.mergeVertices()</h3>
  191. <div>
  192. Checks for duplicate vertices using hashmap.<br />
  193. Duplicated vertices are removed and faces' vertices are updated.
  194. </div>
  195. <h3>.clone()</h3>
  196. <div>
  197. Creates a new clone of the Geometry.
  198. </div>
  199. <h3>.dispose()</h3>
  200. <div>
  201. Removes The object from memory. <br />
  202. Don't forget to call this method when you remove an geometry because it can cuase meomory leaks.
  203. </div>
  204. <h3>.dispatchEvent([page:todo event]) [page:todo]</h3>
  205. <div>
  206. event -- todo
  207. </div>
  208. <div>
  209. todo
  210. </div>
  211. <h3>.hasEventListener([page:todo type], [page:todo listener]) [page:todo]</h3>
  212. <div>
  213. type -- todo <br />
  214. listener -- todo
  215. </div>
  216. <div>
  217. todo
  218. </div>
  219. <h3>.removeEventListener([page:todo type], [page:todo listener]) [page:todo]</h3>
  220. <div>
  221. type -- todo <br />
  222. listener -- todo
  223. </div>
  224. <div>
  225. todo
  226. </div>
  227. <h3>.computeLineDistances() [page:todo]</h3>
  228. <div>
  229. todo
  230. </div>
  231. <h3>.addEventListener([page:todo type], [page:todo listener]) [page:todo]</h3>
  232. <div>
  233. type -- todo <br />
  234. listener -- todo
  235. </div>
  236. <div>
  237. todo
  238. </div>
  239. <h2>Source</h2>
  240. [link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
  241. </body>
  242. </html>