443 lines
17 KiB
HTML
443 lines
17 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1"> <!-- Use Chrome Frame in IE -->
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<meta name="viewport" content="width=device-width, height=device-height, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
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<meta name="description" content="Create new primitives using custom rendering.">
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<title>Cesium Demo</title>
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<script type="text/javascript" src="../Sandcastle-header.js"></script>
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<script data-dojo-config="async: 1, tlmSiblingOfDojo: 0" src="../../../ThirdParty/dojo-release-1.7.2-src/dojo/dojo.js"></script>
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<script type="text/javascript">
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require({
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baseUrl : '../../..',
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packages: [
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{ name: 'dojo', location: 'ThirdParty/dojo-release-1.7.2-src/dojo' },
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{ name: 'dijit', location: 'ThirdParty/dojo-release-1.7.2-src/dijit' },
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{ name: 'dojox', location: 'ThirdParty/dojo-release-1.7.2-src/dojox' },
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{ name: 'Assets', location: 'Source/Assets' },
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{ name: 'Core', location: 'Source/Core' },
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{ name: 'DynamicScene', location: 'Source/DynamicScene' },
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{ name: 'Renderer', location: 'Source/Renderer' },
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{ name: 'Scene', location: 'Source/Scene' },
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{ name: 'Shaders', location: 'Source/Shaders' },
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{ name: 'ThirdParty', location: 'Source/ThirdParty' },
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{ name: 'Widgets', location: 'Source/Widgets' },
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{ name: 'Workers', location: 'Source/Workers' }
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]
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});
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</script>
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<link rel="Stylesheet" href="../../../ThirdParty/dojo-release-1.7.2-src/dijit/themes/claro/claro.css" type="text/css">
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<link rel="Stylesheet" href="../../../Source/Widgets/Dojo/CesiumViewerWidget.css" type="text/css">
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</head>
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<body class="claro" data-sandcastle-bucket="bucket-dojo.html" data-sandcastle-title="Cesium + Dojo">
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<style>
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body {
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background: #000;
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color: #eee;
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font-family: sans-serif;
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font-size: 9pt;
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padding: 0;
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margin: 0;
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width: 100%;
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height: 100%;
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overflow: hidden;
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}
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.fullSize {
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display: block;
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position: absolute;
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top: 0;
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left: 0;
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border: none;
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width: 100%;
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height: 100%;
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}
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#toolbar {
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margin: 5px;
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padding: 2px 5px;
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position: absolute;
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}
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</style>
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<div id="cesiumContainer" class="fullSize"></div>
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<div id="toolbar">Loading...</div>
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<script id="cesium_sandcastle_script">
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require([
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'Source/Cesium', 'Widgets/Dojo/CesiumWidget', 'dijit/form/Button', 'dijit/form/DropDownButton',
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'dijit/DropDownMenu', 'dijit/MenuItem', 'dojo/on', 'dojo/dom'
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], function(
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Cesium, CesiumWidget, Button, DropDownButton,
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DropDownMenu, MenuItem, on, dom)
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{
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"use strict";
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function renderBox(scene) {
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Sandcastle.declare(renderBox); // For highlighting in Sandcastle.
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var primitives = scene.getPrimitives();
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primitives.add(new Box(Cesium.Ellipsoid.WGS84.cartographicToCartesian(
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Cesium.Cartographic.fromDegrees(-75.59777, 40.03883, 500000.0))));
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}
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var Box = function(position) {
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var ellipsoid = Cesium.Ellipsoid.WGS84;
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this._pickId = undefined;
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this._colorCommand = new Cesium.DrawCommand();
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this._pickCommand = new Cesium.DrawCommand();
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this._colorCommand.primitiveType = this._pickCommand.primitiveType = Cesium.PrimitiveType.LINES;
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this._colorCommand.boundingVolume = this._pickCommand.boundingVolume = new Cesium.BoundingSphere();
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this._colorCommand.modelMatrix = this._pickCommand.modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(position);
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this._commandLists = new Cesium.CommandLists();
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var that = this;
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this._colorCommand.uniformMap = {
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u_color: function() {
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return {
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red: 1.0,
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green: 1.0,
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blue: 0.0,
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alpha: 1.0
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};
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}
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};
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this._pickCommand.uniformMap = {
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u_color: function() {
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return that._pickId.normalizedRgba;
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}
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};
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};
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Box.prototype.update = function(context, frameState, commandList) {
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// Only supports 3D, not 2D or Columbus view.
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if (frameState.mode !== Cesium.SceneMode.SCENE3D) {
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return;
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}
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var colorCommand = this._colorCommand;
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var pickCommand = this._pickCommand;
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if (typeof colorCommand.vertexArray === 'undefined') {
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var vs = '';
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vs += 'attribute vec4 position;';
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vs += 'void main()';
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vs += '{';
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vs += ' gl_Position = czm_modelViewProjection * position;';
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vs += '}';
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var fs = '';
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fs += 'uniform vec4 u_color;';
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fs += 'void main()';
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fs += '{';
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fs += ' gl_FragColor = u_color;';
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fs += '}';
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var dimensions = new Cesium.Cartesian3(500000.0, 500000.0, 500000.0);
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var maximumCorner = dimensions.multiplyByScalar(0.5);
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var minimumCorner = maximumCorner.negate();
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Cesium.BoundingSphere.fromPoints([minimumCorner, maximumCorner], colorCommand.boundingVolume);
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var mesh = Cesium.MeshFilters.toWireframeInPlace(
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Cesium.BoxTessellator.compute({
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minimumCorner: minimumCorner,
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maximumCorner: maximumCorner
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}));
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var attributeIndices = Cesium.MeshFilters.createAttributeIndices(mesh);
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colorCommand.vertexArray = pickCommand.vertexArray = context.createVertexArrayFromMesh({
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mesh: mesh,
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attributeIndices: attributeIndices,
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bufferUsage: Cesium.BufferUsage.STATIC_DRAW
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});
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colorCommand.shaderProgram = pickCommand.shaderProgram = context.getShaderCache().getShaderProgram(vs, fs, attributeIndices);
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colorCommand.renderState = pickCommand.renderState = context.createRenderState({
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depthTest : {
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enabled : true
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}
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});
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this._pickId = context.createPickId(this);
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}
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var pass = frameState.passes;
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this._commandLists.removeAll();
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if (pass.color) {
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this._commandLists.colorList.push(colorCommand);
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}
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if (pass.pick) {
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this._commandLists.pickList.push(pickCommand);
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}
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commandList.push(this._commandLists);
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};
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Box.prototype.isDestroyed = function() {
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return false;
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};
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Box.prototype.destroy = function() {
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var colorCommand = this._colorCommand;
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colorCommand.vertexArray = colorCommand.vertexArray && colorCommand.vertexArray.destroy();
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colorCommand.shaderProgram = colorCommand.shaderProgram && colorCommand.shaderProgram.release();
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this._pickId = this._pickId && this._pickId.destroy();
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return Cesium.destroyObject(this);
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};
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function renderBoxAcrossModes(scene) {
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Sandcastle.declare(renderBoxAcrossModes); // For highlighting in Sandcastle.
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var primitives = scene.getPrimitives();
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primitives.add(new Box2(Cesium.Ellipsoid.WGS84.cartographicToCartesian(
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Cesium.Cartographic.fromDegrees(-75.59777, 40.03883, 500000.0))));
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}
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var Box2 = function(position) {
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var ellipsoid = Cesium.Ellipsoid.WGS84;
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this._ellipsoid = ellipsoid;
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this._pickId = undefined;
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this._colorCommand = new Cesium.DrawCommand();
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this._pickCommand = new Cesium.DrawCommand();
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this._colorCommand.primitiveType = this._pickCommand.primitiveType = Cesium.PrimitiveType.LINES;
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this._colorCommand.boundingVolume = this._pickCommand.boundingVolume = new Cesium.BoundingSphere();
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this._commandLists = new Cesium.CommandLists();
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this._mode = undefined;
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this._projection = undefined;
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this._attributeIndices = {
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position2D : 0,
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position3D : 1
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};
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this._position = position;
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this._modelMatrix = undefined;
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this.morphTime = 1.0;
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var that = this;
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this._colorCommand.uniformMap = {
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u_color : function() {
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return { red : 0.0, green : 1.0, blue : 0.0, alpha : 1.0 };
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},
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u_morphTime : function() {
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return that.morphTime;
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}
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};
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this._pickCommand.uniformMap = {
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u_color : function() {
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return that._pickId.normalizedRgba;
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},
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u_morphTime : function() {
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return that.morphTime;
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}
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};
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};
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Box2.prototype.update = function(context, frameState, commandList) {
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var mode = frameState.mode;
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var projection = frameState.scene2D.projection;
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var colorCommand = this._colorCommand;
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var pickCommand = this._pickCommand;
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if (mode !== this._mode || projection !== this._projection) {
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this._mode = mode;
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this._projection = projection;
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if (typeof mode.morphTime !== 'undefined') {
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this.morphTime = mode.morphTime;
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}
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var zLength = this._ellipsoid.getRadii().getMaximumComponent() * 0.1;
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var x = zLength * 0.1;
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var y = zLength * 0.5;
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var z = zLength;
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this._modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(this._position);
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var dimensions = new Cesium.Cartesian3(500000.0, 500000.0, 500000.0);
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var maximumCorner = dimensions.multiplyByScalar(0.5);
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var minimumCorner = maximumCorner.negate();
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var mesh = Cesium.MeshFilters.toWireframeInPlace(
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Cesium.BoxTessellator.compute({
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minimumCorner: minimumCorner,
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maximumCorner: maximumCorner
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}));
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mesh.attributes.position3D = mesh.attributes.position;
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delete mesh.attributes.position;
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if (mode === Cesium.SceneMode.SCENE3D) {
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mesh.attributes.position2D = { // Not actually used in shader
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value : [0.0, 0.0]
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};
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Cesium.BoundingSphere.fromPoints([
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new Cesium.Cartesian3(-x, -y, -z),
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new Cesium.Cartesian3(x, y, z)
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], colorCommand.boundingVolume);
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} else {
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var positions = mesh.attributes.position3D.values;
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var projectedPositions = [];
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var projectedPositionsFlat = [];
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for (var i = 0; i < positions.length; i += 3) {
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var modelPosition = new Cesium.Cartesian3(positions[i], positions[i + 1], positions[i + 2]);
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var worldPosition = this._modelMatrix.multiplyByPoint(modelPosition);
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positions[i] = worldPosition.x;
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positions[i + 1] = worldPosition.y;
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positions[i + 2] = worldPosition.z;
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var projectedPosition = projection.project(this._ellipsoid.cartesianToCartographic(worldPosition));
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projectedPositions.push(projectedPosition);
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projectedPositionsFlat.push(projectedPosition.z, projectedPosition.x, projectedPosition.y);
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}
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if (mode === Cesium.SceneMode.SCENE2D || mode === Cesium.SceneMode.COLUMBUS_VIEW) {
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Cesium.BoundingSphere.fromPoints(projectedPositions, colorCommand.boundingVolume);
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colorCommand.boundingVolume.center = new Cesium.Cartesian3(colorCommand.boundingVolume.center.z, colorCommand.boundingVolume.center.x, colorCommand.boundingVolume.center.y);
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} else {
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var bv3D = Cesium.BoundingSphere.fromPoints([
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minimumCorner,
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maximumCorner
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]);
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var bv2D = Cesium.BoundingSphere.fromPoints(projectedPositions);
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bv2D.center = new Cesium.Cartesian3(bv2D.center.z, bv2D.center.x, bv2D.center.y);
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bv3D.union(bv2D, colorCommand.boundingVolume);
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}
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mesh.attributes.position2D = {
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componentDatatype : Cesium.ComponentDatatype.FLOAT,
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componentsPerAttribute : 3,
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values : projectedPositionsFlat
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};
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}
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colorCommand.vertexArray = colorCommand.vertexArray && colorCommand.vertexArray.destroy();
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colorCommand.vertexArray = pickCommand.vertexArray = context.createVertexArrayFromMesh({
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mesh : mesh,
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attributeIndices : this._attributeIndices,
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bufferUsage : Cesium.BufferUsage.STATIC_DRAW
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});
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}
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if (typeof colorCommand.shaderProgram === 'undefined') {
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var vs = '';
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vs += 'attribute vec3 position2D;';
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vs += 'attribute vec3 position3D;';
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vs += 'uniform float u_morphTime;';
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vs += 'void main()';
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vs += '{';
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vs += ' vec4 p = czm_columbusViewMorph(position2D, position3D, u_morphTime);';
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vs += ' gl_Position = czm_modelViewProjection * p;';
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vs += '}';
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var fs = '';
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fs += 'uniform vec4 u_color;';
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fs += 'void main()';
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fs += '{';
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fs += ' gl_FragColor = u_color;';
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fs += '}';
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colorCommand.shaderProgram = pickCommand.shaderProgram = context.getShaderCache().getShaderProgram(vs, fs, this._attributeIndices);
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colorCommand.renderState = pickCommand.renderState = context.createRenderState({
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depthTest : {
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enabled : true
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}
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});
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}
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var pass = frameState.passes;
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if (pass.pick && typeof this._pickId === 'undefined') {
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this._pickId = context.createPickId(this);
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}
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var modelMatrix = Cesium.Matrix4.IDENTITY;
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if (mode === Cesium.SceneMode.SCENE3D) {
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modelMatrix = this._modelMatrix;
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}
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this._commandLists.removeAll();
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if (pass.color) {
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colorCommand.modelMatrix = modelMatrix;
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this._commandLists.colorList.push(colorCommand);
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}
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if (pass.pick) {
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pickCommand.modelMatrix = modelMatrix;
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this._commandLists.pickList.push(pickCommand);
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}
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commandList.push(this._commandLists);
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};
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// These functions are the same as before.
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Box2.prototype.isDestroyed = Box.prototype.isDestroyed;
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Box2.prototype.destroy = Box.prototype.destroy;
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function createButtons(widget) {
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var scene = widget.scene;
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var centralBody = widget.centralBody;
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var ellipsoid = widget.ellipsoid;
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var primitives = scene.getPrimitives();
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var transitioner = new Cesium.SceneTransitioner(scene, ellipsoid);
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var sceneMenu = new DropDownMenu({ style: "display: none;"});
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sceneMenu.addChild(new MenuItem({
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label: '2D',
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onClick: function() {
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transitioner.morphTo2D();
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}
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}));
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sceneMenu.addChild(new MenuItem({
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label: 'Columbus View',
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onClick: function() {
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transitioner.morphToColumbusView();
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}
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}));
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sceneMenu.addChild(new MenuItem({
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label: '3D',
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onClick: function() {
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transitioner.morphTo3D();
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}
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}));
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new Button({
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label: 'Render a box',
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onClick: function() {
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primitives.removeAll();
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renderBox(scene);
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Sandcastle.highlight(renderBox);
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}
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}).placeAt('toolbar');
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new Button({
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label: 'Render a box across scene modes',
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onClick: function() {
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primitives.removeAll();
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renderBoxAcrossModes(scene);
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Sandcastle.highlight(renderBoxAcrossModes);
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}
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}).placeAt('toolbar');
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new DropDownButton({
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label : 'Scene Mode',
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dropDown: sceneMenu
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}).placeAt('toolbar');
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}
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var widget = new CesiumWidget();
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widget.placeAt(dom.byId('cesiumContainer'));
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widget.startup();
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dom.byId('toolbar').innerHTML = '';
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createButtons(widget);
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renderBox(widget.scene);
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});
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</script>
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</body>
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</html>
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