svg_lines.html 2.7 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js svg - lines</title>
  5. <meta charset="utf-8">
  6. <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
  7. <link type="text/css" rel="stylesheet" href="main.css">
  8. <style>
  9. a {
  10. color: #08f;
  11. }
  12. svg {
  13. display: block;
  14. }
  15. </style>
  16. </head>
  17. <body>
  18. <div id="info">
  19. <a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> svg - lines
  20. </div>
  21. <script type="module">
  22. import {
  23. BufferGeometry,
  24. Color,
  25. Float32BufferAttribute,
  26. Line,
  27. LineBasicMaterial,
  28. LineDashedMaterial,
  29. PerspectiveCamera,
  30. Scene
  31. } from "../build/three.module.js";
  32. import { SVGRenderer } from './jsm/renderers/SVGRenderer.js';
  33. var camera, scene, renderer;
  34. init();
  35. animate();
  36. function init() {
  37. camera = new PerspectiveCamera( 33, window.innerWidth / window.innerHeight, 0.1, 100 );
  38. camera.position.z = 10;
  39. scene = new Scene();
  40. scene.background = new Color( 0, 0, 0 );
  41. renderer = new SVGRenderer();
  42. renderer.setSize( window.innerWidth, window.innerHeight );
  43. document.body.appendChild( renderer.domElement );
  44. //
  45. var vertices = [];
  46. var divisions = 50;
  47. for ( var i = 0; i <= divisions; i ++ ) {
  48. var v = ( i / divisions ) * ( Math.PI * 2 );
  49. var x = Math.sin( v );
  50. var z = Math.cos( v );
  51. vertices.push( x, 0, z );
  52. }
  53. var geometry = new BufferGeometry();
  54. geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
  55. //
  56. for ( var i = 1; i <= 3; i ++ ) {
  57. var material = new LineBasicMaterial( {
  58. color: Math.random() * 0xffffff,
  59. linewidth: 10
  60. } );
  61. var line = new Line( geometry, material );
  62. line.scale.setScalar( i / 3 );
  63. scene.add( line );
  64. }
  65. var material = new LineDashedMaterial( {
  66. color: 'blue',
  67. linewidth: 1,
  68. dashSize: 10,
  69. gapSize: 10
  70. } );
  71. var line = new Line( geometry, material );
  72. line.scale.setScalar( 2 );
  73. scene.add( line );
  74. //
  75. window.addEventListener( 'resize', onWindowResize, false );
  76. }
  77. function onWindowResize() {
  78. camera.aspect = window.innerWidth / window.innerHeight;
  79. camera.updateProjectionMatrix();
  80. renderer.setSize( window.innerWidth, window.innerHeight );
  81. }
  82. function animate() {
  83. var count = 0;
  84. var time = performance.now() / 1000;
  85. scene.traverse( function ( child ) {
  86. child.rotation.x = count + ( time / 3 );
  87. child.rotation.z = count + ( time / 4 );
  88. count ++;
  89. } );
  90. renderer.render( scene, camera );
  91. requestAnimationFrame( animate );
  92. }
  93. </script>
  94. </body>
  95. </html>