Mercurial > hg > orthanc-stl

annotate Sources/viewer.js @ 1:0f03a8a0bd6f

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encoding of RT-STRUCT as STL
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 17 Jul 2023 18:54:31 +0200
parents 4e889a8e8be2
children 549ba7ada071
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1 /**
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2 * SPDX-FileCopyrightText: 2023 Sebastien Jodogne, UCLouvain, Belgium
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3 * SPDX-License-Identifier: GPL-3.0-or-later
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4 */
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5
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6 /**
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7 * STL plugin for Orthanc
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8 * Copyright (C) 2023 Sebastien Jodogne, UCLouvain, Belgium
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9 *
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10 * This program is free software: you can redistribute it and/or
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11 * modify it under the terms of the GNU General Public License as
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12 * published by the Free Software Foundation, either version 3 of the
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13 * License, or (at your option) any later version.
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14 *
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15 * This program is distributed in the hope that it will be useful, but
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16 * WITHOUT ANY WARRANTY; without even the implied warranty of
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17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 * General Public License for more details.
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19 *
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20 * You should have received a copy of the GNU General Public License
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21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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22 **/
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23
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24
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25 import * as THREE from 'three';
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26
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27 import { OrbitControls } from './OrbitControls.js';
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28 import { STLLoader } from './STLLoader.js';
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29
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30
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31 // http://stackoverflow.com/a/21903119/881731
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32 function GetUrlParameter(sParam)
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33 {
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34 var sPageURL = decodeURIComponent(window.location.search.substring(1));
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35 var sURLVariables = sPageURL.split('&');
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36
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37 for (var i = 0; i < sURLVariables.length; i++) {
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38 var sParameterName = sURLVariables[i].split('=');
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39
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40 if (sParameterName[0] === sParam) {
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41 return sParameterName[1] === undefined ? '' : sParameterName[1];
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42 }
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43 }
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44
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45 return '';
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46 };
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47
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48 var instanceId = GetUrlParameter('instance');
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49
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50
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51 const scene = new THREE.Scene();
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52
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53 const renderer = new THREE.WebGLRenderer();
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54 renderer.setSize(window.innerWidth, window.innerHeight);
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55 document.body.appendChild(renderer.domElement);
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56
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57 const material = new THREE.MeshPhongMaterial();
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58
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59 const light = new THREE.AmbientLight(0x555555);
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60 scene.add(light);
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61
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62 const light2 = new THREE.PointLight(0xaaaaaa, 2);
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63 light2.position.set(10, 10, 10);
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64 scene.add(light2);
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65
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66 const loader = new STLLoader()
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67 loader.load(
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68 '../../instances/' + instanceId + '/content/0042-0011',
0
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69 function (geometry) {
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70 const frustumSize = 200;
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71
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72 geometry.computeBoundingBox();
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73 geometry.translate(-(geometry.boundingBox.min.x + geometry.boundingBox.max.x) / 2.0,
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74 -(geometry.boundingBox.min.y + geometry.boundingBox.max.y) / 2.0,
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75 -(geometry.boundingBox.min.z + geometry.boundingBox.max.z) / 2.0);
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76
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77 var maxSize = Math.max(geometry.boundingBox.max.x - geometry.boundingBox.min.x,
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78 geometry.boundingBox.max.y - geometry.boundingBox.min.y,
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79 geometry.boundingBox.max.z - geometry.boundingBox.min.z);
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80
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81 geometry.scale((frustumSize / 2.0) / maxSize,
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82 (frustumSize / 2.0) / maxSize,
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83 (frustumSize / 2.0) / maxSize);
0
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84
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85 const mesh = new THREE.Mesh(geometry, material);
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86 scene.add(mesh);
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87
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88 const aspect = window.innerWidth / window.innerHeight;
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89 const camera = new THREE.OrthographicCamera(
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90 frustumSize * aspect / - 2, frustumSize * aspect / 2,
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91 frustumSize / 2, frustumSize / - 2, 1, frustumSize);
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92
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93 camera.position.z = 100;
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94
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95 const controls = new OrbitControls(camera, renderer.domElement);
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96
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97 //controls.update() must be called after any manual changes to the camera's transform
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98 controls.update();
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99
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100 function animate() {
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101 requestAnimationFrame(animate);
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102
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103 // required if controls.enableDamping or controls.autoRotate are set to true
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104 controls.update();
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105 light2.position.copy(camera.position);
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106
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107 renderer.render(scene, camera);
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108 }
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109
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110 animate();
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111
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112 function onWindowResize() {
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113 const aspect = window.innerWidth / window.innerHeight;
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114 camera.left = - frustumSize * aspect / 2;
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115 camera.right = frustumSize * aspect / 2;
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116 camera.top = frustumSize / 2;
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117 camera.bottom = - frustumSize / 2;
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118 camera.updateProjectionMatrix();
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119 renderer.setSize(window.innerWidth, window.innerHeight);
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120 }
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121
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122 window.addEventListener('resize', onWindowResize );
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123 },
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124 function (xhr) {
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125 },
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126 function (error) {
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127 console.log(error);
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128 }
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129 );