DragControls.html 3.2 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="utf-8" />
  5. <base href="../../../" />
  6. <script src="page.js"></script>
  7. <link type="text/css" rel="stylesheet" href="page.css" />
  8. </head>
  9. <body>
  10. [page:EventDispatcher] &rarr;
  11. <h1>[name]</h1>
  12. <p class="desc">
  13. This class can be used to provide a drag'n'drop interaction.
  14. </p>
  15. <h2>Import</h2>
  16. <p>
  17. [name] is an add-on, and must be imported explicitly.
  18. See [link:#manual/introduction/Installation Installation / Addons].
  19. </p>
  20. <code>
  21. import { DragControls } from 'three/addons/controls/DragControls.js';
  22. </code>
  23. <h2>Code Example</h2>
  24. <code>
  25. const controls = new DragControls( objects, camera, renderer.domElement );
  26. // add event listener to highlight dragged objects
  27. controls.addEventListener( 'dragstart', function ( event ) {
  28. event.object.material.emissive.set( 0xaaaaaa );
  29. } );
  30. controls.addEventListener( 'dragend', function ( event ) {
  31. event.object.material.emissive.set( 0x000000 );
  32. } );
  33. </code>
  34. <h2>Examples</h2>
  35. <p>[example:misc_controls_drag misc / controls / drag ]</p>
  36. <h2>Constructor</h2>
  37. <h3>[name]( [param:Array objects], [param:Camera camera], [param:HTMLDOMElement domElement] )</h3>
  38. <p>
  39. <p>
  40. [page:Array objects]: An array of draggable 3D objects.
  41. </p>
  42. <p>
  43. [page:Camera camera]: The camera of the rendered scene.
  44. </p>
  45. <p>
  46. [page:HTMLDOMElement domElement]: The HTML element used for event listeners.
  47. </p>
  48. <p>
  49. Creates a new instance of [name].
  50. </p>
  51. </p>
  52. <h2>Events</h2>
  53. <h3>dragstart</h3>
  54. <p>
  55. Fires when the user starts to drag a 3D object.
  56. </p>
  57. <h3>drag</h3>
  58. <p>
  59. Fires when the user drags a 3D object.
  60. </p>
  61. <h3>dragend</h3>
  62. <p>
  63. Fires when the user has finished dragging a 3D object.
  64. </p>
  65. <h3>hoveron</h3>
  66. <p>
  67. Fires when the pointer is moved onto a 3D object, or onto one of its children.
  68. </p>
  69. <h3>hoveroff</h3>
  70. <p>
  71. Fires when the pointer is moved out of a 3D object.
  72. </p>
  73. <h2>Properties</h2>
  74. <h3>[property:Boolean enabled]</h3>
  75. <p>
  76. Whether or not the controls are enabled.
  77. </p>
  78. <h3>[property:Boolean transformGroup]</h3>
  79. <p>
  80. This option only works if the [page:DragControls.objects] array contains a single draggable group object.
  81. If set to `true`, [name] does not transform individual objects but the entire group. Default is `false`.
  82. </p>
  83. <h2>Methods</h2>
  84. <p>See the base [page:EventDispatcher] class for common methods.</p>
  85. <h3>[method:undefined activate] ()</h3>
  86. <p>
  87. Adds the event listeners of the controls.
  88. </p>
  89. <h3>[method:undefined deactivate] ()</h3>
  90. <p>
  91. Removes the event listeners of the controls.
  92. </p>
  93. <h3>[method:undefined dispose] ()</h3>
  94. <p>
  95. Should be called if the controls is no longer required.
  96. </p>
  97. <h3>[method:Array getObjects] ()</h3>
  98. <p>
  99. Returns the array of draggable objects.
  100. </p>
  101. <h3>[method:Raycaster getRaycaster] ()</h3>
  102. <p>
  103. Returns the internal [page:Raycaster] instance that is used for intersection tests.
  104. </p>
  105. <h2>Source</h2>
  106. <p>
  107. [link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/controls/DragControls.js examples/jsm/controls/DragControls.js]
  108. </p>
  109. </body>
  110. </html>