<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
<meta name="description" content="Add billboard images and markers to the scene.">
<meta name="cesium-sandcastle-labels" content="Beginner, Showcases">
<title>Billboards2</title>
<script type="text/javascript" src="../Sandcastle-header.js"></script>
<script type="text/javascript" src="../../../ThirdParty/requirejs-2.1.20/require.js"></script>
<script type="text/javascript">
require.config({
baseUrl : '../../../Source',
waitSeconds : 60
});
</script>
</head>
<body class="sandcastle-loading" data-sandcastle-bucket="bucket-requirejs.html">
<style>
@import url(../templates/bucket.css);
</style>
<div id="cesiumContainer" class="fullSize"></div>
<div id="loadingOverlay"><h1>Loading...</h1></div>
<div id="toolbar"></div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
'use strict';
//Sandcastle_Begin
let viewer = new Cesium.Viewer('cesiumContainer');
function addBillboard() {
// Sandcastle.declare(addBillboard);
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard :{
image : '../images/Cesium_Logo_overlay.png'
}
});
}
function setBillboardProperties() {
// Sandcastle.declare(setBillboardProperties);
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard : {
image : '../images/Cesium_Logo_overlay.png', // default: undefined
show : true, // default
// 指定billboard的像素偏移量。
pixelOffset : new Cesium.Cartesian2(0, -50), // default: (0, 0)
// 指定眼睛偏移量。(未测试。)
eyeOffset : new Cesium.Cartesian3(0.0, 0.0, 0.0), // default
// 指定水平原点。
horizontalOrigin : Cesium.HorizontalOrigin.CENTER, // default
verticalOrigin : Cesium.VerticalOrigin.BOTTOM, // default: CENTER
scale : 2.0, // default: 1.0
color : Cesium.Color.LIME, // default: WHITE
rotation : Cesium.Math.PI_OVER_FOUR, // default: 0.0
// 指定沿哪个轴旋转。
alignedAxis : Cesium.Cartesian3.ZERO, // default
width : 100, // default: undefined
height : 25 // default: undefined
}
});
}
function changeBillboardProperties() {
// Sandcastle.declare(changeBillboardProperties);
let entity = viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883, 300000.0),
billboard : {
image : '../images/Cesium_Logo_overlay.png'
}
});
let billboard = entity.billboard;
billboard.scale = 3.0;
billboard.color = Cesium.Color.WHITE.withAlpha(0.25);
}
function sizeBillboardInMeters() {
// Sandcastle.declare(sizeBillboardInMeters);
let entity = viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard : {
image : '../images/Cesium_Logo_overlay.png',
// 指定此广告牌的大小是否应以米为单位。
sizeInMeters : true
}
});
viewer.zoomTo(entity);
}
function addMultipleBillboards() {
// Sandcastle.declare(addMultipleBillboards);
let logoUrl = '../images/Cesium_Logo_overlay.png';
let facilityUrl = '../images/facility.gif';
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard : {
image : logoUrl
}
});
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-80.50, 35.14),
billboard : {
image : facilityUrl
}
});
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-80.12, 25.46),
billboard : {
image : facilityUrl
}
});
}
function scaleByDistance() {
// Sandcastle.declare(scaleByDistance);
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard : {
image : '../images/facility.gif',
scaleByDistance : new Cesium.NearFarScalar(1.5e2, 2.0, 1.5e7, 0.5)
}
});
}
function fadeByDistance() {
// Sandcastle.declare(fadeByDistance);
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard : {
image : '../images/Cesium_Logo_overlay.png',
translucencyByDistance : new Cesium.NearFarScalar(1.5e2, 1, 1.5e7, 0)
}
});
}
function offsetByDistance() {
// Sandcastle.declare(offsetByDistance);
Cesium.when.all([
Cesium.Resource.fetchImage('../images/Cesium_Logo_overlay.png'),
Cesium.Resource.fetchImage('../images/facility.gif')
],
function(images) {
// 当查看者缩小到离设施广告牌更近的地方时，
// 将cesium徽标广告牌上的像素偏移量增加到此高度。
let facilityHeight = images[1].height;
// 搭配广告牌，随着观众的接近而分开
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard : {
image : images[1],
horizontalOrigin : Cesium.HorizontalOrigin.CENTER,
verticalOrigin : Cesium.VerticalOrigin.BOTTOM
}
});
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard : {
image : images[0],
horizontalOrigin : Cesium.HorizontalOrigin.CENTER,
verticalOrigin : Cesium.VerticalOrigin.BOTTOM,
pixelOffset : new Cesium.Cartesian2(0.0, -facilityHeight),
pixelOffsetScaleByDistance : new Cesium.NearFarScalar(1.0e3, 1.0, 1.5e6, 0.0),
translucencyByDistance : new Cesium.NearFarScalar(1.0e3, 1.0, 1.5e6, 0.1)
}
});
});
}
function addMarkerBillboards() {
// Sandcastle.declare(addMarkerBillboards);
// Add several billboards based on the above image in the atlas.
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard : {
image : '../images/whiteShapes.png',
// new Cesium.BoundingRectangle(x, y, width, height)
imageSubRegion : new Cesium.BoundingRectangle(49, 43, 18, 18),
color : Cesium.Color.LIME
}
});
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-84.0, 39.0),
billboard : {
image : '../images/whiteShapes.png',
imageSubRegion : new Cesium.BoundingRectangle(61, 23, 18, 18),
color : new Cesium.Color(0, 0.5, 1.0, 1.0)
}
});
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-70.0, 41.0),
billboard : {
image : '../images/whiteShapes.png',
imageSubRegion : new Cesium.BoundingRectangle(67, 80, 14, 14),
color : new Cesium.Color(0.5, 0.9, 1.0, 1.0)
}
});
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-73.0, 37.0),
billboard : {
image : '../images/whiteShapes.png',
imageSubRegion : new Cesium.BoundingRectangle(27, 103, 22, 22),
color : Cesium.Color.RED
}
});
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-79.0, 35.0),
billboard : {
image : '../images/whiteShapes.png',
imageSubRegion : new Cesium.BoundingRectangle(105, 105, 18, 18),
color : Cesium.Color.YELLOW
}
});
}
let terrainProvider;
function disableDepthTest() {
// Sandcastle.declare(disableDepthTest);
terrainProvider = viewer.terrainProvider;
viewer.terrainProvider = Cesium.createWorldTerrain();
viewer.scene.globe.depthTestAgainstTerrain = true;
viewer.entities.add({
position : Cesium.Cartesian3.fromDegrees(-122.1958, 46.1915),
billboard : {
image : '../images/facility.gif',
heightReference : Cesium.HeightReference.CLAMP_TO_GROUND,
disableDepthTestDistance : Number.POSITIVE_INFINITY
}
});
viewer.zoomTo(viewer.entities);
}
Sandcastle.addToolbarMenu([
{
text : 'Add billboard',
onselect : function() {
addBillboard();
Sandcastle.highlight(addBillboard);
}
},
{
text : 'Set billboard properties at creation',
onselect : function() {
setBillboardProperties();
Sandcastle.highlight(setBillboardProperties);
}
},
{
text : 'Change billboard properties',
onselect : function() {
changeBillboardProperties();
Sandcastle.highlight(changeBillboardProperties);
}
},
{
text : 'Size billboard in meters',
onselect : function() {
sizeBillboardInMeters();
Sandcastle.highlight(sizeBillboardInMeters);
}
},
{
text : 'Add multiple billboards',
onselect : function() {
addMultipleBillboards();
Sandcastle.highlight(addMultipleBillboards);
}
},
{
text : 'Scale by viewer distance',
onselect : function() {
scaleByDistance();
Sandcastle.highlight(scaleByDistance);
}
},
{
text : 'Fade by viewer distance',
onselect : function() {
fadeByDistance();
Sandcastle.highlight(fadeByDistance);
}
},
{
text : 'Offset by viewer distance',
onselect : function() {
offsetByDistance();
Sandcastle.highlight(offsetByDistance);
}
},
{
text : 'Add marker billboards',
onselect : function() {
addMarkerBillboards();
Sandcastle.highlight(addMarkerBillboards);
}
},
{
text : 'Disable the depth test when clamped to ground',
onselect : function() {
disableDepthTest();
Sandcastle.highlight(disableDepthTest);
}
}
]);
Sandcastle.reset = function () {
viewer.camera.flyHome(0);
viewer.entities.removeAll();
if (Cesium.defined(terrainProvider)) {
viewer.terrainProvider = terrainProvider;
terrainProvider = undefined;
viewer.scene.globe.depthTestAgainstTerrain = false;
}
};
//Sandcastle_End
Sandcastle.finishedLoading();
}
if (typeof Cesium !== 'undefined') {
startup(Cesium);
} else if (typeof require === 'function') {
require(['Cesium'], startup);
}
</script>
</body>
</html>
cesium 1.52 demo _ Billboards2.html
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转载自blog.csdn.net/weixin_42193179/article/details/85785909
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