Mercurial > hg > orthanc-wsi
annotate ViewerPlugin/viewer.js @ 322:778e08291d52
re-enabling built-in support of plain TIFF
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 16 Oct 2024 18:42:10 +0200 |
parents | 0683312e21ba |
children | c42083d50ddf |
rev | line source |
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0 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
0 | 8 * |
9 * This program is free software: you can redistribute it and/or | |
10 * modify it under the terms of the GNU Affero General Public License | |
11 * as published by the Free Software Foundation, either version 3 of | |
12 * the License, or (at your option) any later version. | |
13 * | |
14 * This program is distributed in the hope that it will be useful, but | |
15 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 * Affero General Public License for more details. | |
18 * | |
19 * You should have received a copy of the GNU Affero General Public License | |
20 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
21 **/ | |
22 | |
23 | |
24 // For IE compatibility | |
25 if (!window.console) window.console = {}; | |
26 if (!window.console.log) window.console.log = function () { }; | |
27 | |
28 | |
29 // http://stackoverflow.com/a/21903119/881731 | |
30 function GetUrlParameter(sParam) | |
31 { | |
32 var sPageURL = decodeURIComponent(window.location.search.substring(1)); | |
33 var sURLVariables = sPageURL.split('&'); | |
34 var sParameterName; | |
35 var i; | |
36 | |
37 for (i = 0; i < sURLVariables.length; i++) | |
38 { | |
39 sParameterName = sURLVariables[i].split('='); | |
40 | |
41 if (sParameterName[0] === sParam) | |
42 { | |
43 return sParameterName[1] === undefined ? '' : sParameterName[1]; | |
44 } | |
45 } | |
46 | |
47 return ''; | |
48 }; | |
49 | |
50 | |
51 | |
52 $(document).ready(function() { | |
53 var seriesId = GetUrlParameter('series'); | |
54 if (seriesId.length == 0) | |
55 { | |
56 alert('Error - No series ID specified!'); | |
57 } | |
58 else | |
59 { | |
60 $.ajax({ | |
61 url : '../pyramids/' + seriesId, | |
62 error: function() { | |
63 alert('Error - Cannot get the pyramid structure of series: ' + seriesId); | |
64 }, | |
65 success : function(series) { | |
66 var width = series['TotalWidth']; | |
67 var height = series['TotalHeight']; | |
68 var countLevels = series['Resolutions'].length; | |
69 | |
70 // Maps always need a projection, but Zoomify layers are not geo-referenced, and | |
71 // are only measured in pixels. So, we create a fake projection that the map | |
72 // can use to properly display the layer. | |
73 var proj = new ol.proj.Projection({ | |
74 code: 'pixel', | |
75 units: 'pixels', | |
76 extent: [0, 0, width, height] | |
77 }); | |
78 | |
79 var extent = [0, -height, width, 0]; | |
80 | |
81 // Disable the rotation of the map, and inertia while panning | |
82 // http://stackoverflow.com/a/25682186 | |
83 var interactions = ol.interaction.defaults({ | |
84 altShiftDragRotate : false, | |
85 pinchRotate : false, | |
86 dragPan: false | |
87 }).extend([ | |
88 new ol.interaction.DragPan({kinetic: false}) | |
89 ]); | |
90 | |
91 var layer = new ol.layer.Tile({ | |
92 extent: extent, | |
93 source: new ol.source.TileImage({ | |
94 projection: proj, | |
95 tileUrlFunction: function(tileCoord, pixelRatio, projection) { | |
96 return ('../tiles/' + seriesId + '/' + | |
97 (countLevels - 1 - tileCoord[0]) + '/' + tileCoord[1] + '/' + (-tileCoord[2] - 1)); | |
98 }, | |
99 tileGrid: new ol.tilegrid.TileGrid({ | |
100 extent: extent, | |
101 resolutions: series['Resolutions'].reverse(), | |
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Viewer can display DICOM pyramids whose tile sizes vary across levels
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102 tileSizes: series['TilesSizes'].reverse() |
0 | 103 }) |
104 }), | |
105 wrapX: false, | |
106 projection: proj | |
107 }); | |
108 | |
109 | |
110 var map = new ol.Map({ | |
111 target: 'map', | |
112 layers: [ layer ], | |
113 view: new ol.View({ | |
114 projection: proj, | |
115 center: [width / 2, -height / 2], | |
116 zoom: 0, | |
117 minResolution: 1 // Do not interpelate over pixels | |
118 }), | |
119 interactions: interactions | |
120 }); | |
121 | |
122 map.getView().fit(extent, map.getSize()); | |
123 } | |
124 }); | |
125 } | |
126 }); |