webglFramework/Thirdparty/three.js-master/src/extras/core/Shape.js

   1 import { PathPrototype } from './PathPrototype';
   2 import { Path } from './Path';
   3
   4 /**
   5  * @author zz85 / http://www.lab4games.net/zz85/blog
   6  * Defines a 2d shape plane using paths.
   7  **/
   8
   9 // STEP 1 Create a path.
  10 // STEP 2 Turn path into shape.
  11 // STEP 3 ExtrudeGeometry takes in Shape/Shapes
  12 // STEP 3a - Extract points from each shape, turn to vertices
  13 // STEP 3b - Triangulate each shape, add faces.
  14
  15 function Shape() {
  16
  17         Path.apply( this, arguments );
  18
  19         this.holes = [];
  20
  21 }
  22
  23 Shape.prototype = Object.assign( Object.create( PathPrototype ), {
  24
  25         constructor: Shape,
  26
  27         getPointsHoles: function ( divisions ) {
  28
  29                 var holesPts = [];
  30
  31                 for ( var i = 0, l = this.holes.length; i < l; i ++ ) {
  32
  33                         holesPts[ i ] = this.holes[ i ].getPoints( divisions );
  34
  35                 }
  36
  37                 return holesPts;
  38
  39         },
  40
  41         // Get points of shape and holes (keypoints based on segments parameter)
  42
  43         extractAllPoints: function ( divisions ) {
  44
  45                 return {
  46
  47                         shape: this.getPoints( divisions ),
  48                         holes: this.getPointsHoles( divisions )
  49
  50                 };
  51
  52         },
  53
  54         extractPoints: function ( divisions ) {
  55
  56                 return this.extractAllPoints( divisions );
  57
  58         }
  59
  60 } );
  61
  62
  63 export { Shape };