You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
317 lines
10 KiB
HTML
317 lines
10 KiB
HTML
<!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="Visualize worldwide, high-resolution terrain."
|
|
/>
|
|
<meta name="cesium-sandcastle-labels" content="Tutorials, Showcases" />
|
|
<title>Cesium Demo</title>
|
|
<script type="text/javascript" src="../Sandcastle-header.js"></script>
|
|
<script
|
|
type="text/javascript"
|
|
src="../../../Build/CesiumUnminified/Cesium.js"
|
|
nomodule
|
|
></script>
|
|
<script type="module" src="../load-cesium-es6.js"></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 id="terrainMenu"></div>
|
|
<div id="zoomButtons"></div>
|
|
<div id="sampleButtons"></div>
|
|
</div>
|
|
<script id="cesium_sandcastle_script">
|
|
function startup(Cesium) {
|
|
"use strict";
|
|
//Sandcastle_Begin
|
|
var worldTerrain = Cesium.createWorldTerrain({
|
|
requestWaterMask: true,
|
|
requestVertexNormals: true,
|
|
});
|
|
|
|
var viewer = new Cesium.Viewer("cesiumContainer", {
|
|
terrainProvider: worldTerrain,
|
|
});
|
|
|
|
// set lighting to true
|
|
viewer.scene.globe.enableLighting = true;
|
|
|
|
// setup alternative terrain providers
|
|
var ellipsoidProvider = new Cesium.EllipsoidTerrainProvider();
|
|
|
|
var vrTheWorldProvider = new Cesium.VRTheWorldTerrainProvider({
|
|
url: "http://www.vr-theworld.com/vr-theworld/tiles1.0.0/73/",
|
|
credit: "Terrain data courtesy VT MÄK",
|
|
});
|
|
|
|
var arcGisProvider = new Cesium.ArcGISTiledElevationTerrainProvider({
|
|
url:
|
|
"https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer",
|
|
});
|
|
|
|
Sandcastle.addToolbarMenu(
|
|
[
|
|
{
|
|
text: "CesiumTerrainProvider - Cesium World Terrain",
|
|
onselect: function () {
|
|
viewer.terrainProvider = worldTerrain;
|
|
viewer.scene.globe.enableLighting = true;
|
|
},
|
|
},
|
|
{
|
|
text: "CesiumTerrainProvider - Cesium World Terrain - no effects",
|
|
onselect: function () {
|
|
viewer.terrainProvider = Cesium.createWorldTerrain();
|
|
},
|
|
},
|
|
{
|
|
text: "CesiumTerrainProvider - Cesium World Terrain w/ Lighting",
|
|
onselect: function () {
|
|
viewer.terrainProvider = Cesium.createWorldTerrain({
|
|
requestVertexNormals: true,
|
|
});
|
|
viewer.scene.globe.enableLighting = true;
|
|
},
|
|
},
|
|
{
|
|
text: "CesiumTerrainProvider - Cesium World Terrain w/ Water",
|
|
onselect: function () {
|
|
viewer.terrainProvider = Cesium.createWorldTerrain({
|
|
requestWaterMask: true,
|
|
});
|
|
},
|
|
},
|
|
{
|
|
text: "EllipsoidTerrainProvider",
|
|
onselect: function () {
|
|
viewer.terrainProvider = ellipsoidProvider;
|
|
},
|
|
},
|
|
{
|
|
text: "VRTheWorldTerrainProvider",
|
|
onselect: function () {
|
|
viewer.terrainProvider = vrTheWorldProvider;
|
|
},
|
|
},
|
|
{
|
|
text: "ArcGISTerrainProvider",
|
|
onselect: function () {
|
|
viewer.terrainProvider = arcGisProvider;
|
|
},
|
|
},
|
|
],
|
|
"terrainMenu"
|
|
);
|
|
|
|
Sandcastle.addDefaultToolbarMenu(
|
|
[
|
|
{
|
|
text: "Mount Everest",
|
|
onselect: function () {
|
|
lookAtMtEverest();
|
|
},
|
|
},
|
|
{
|
|
text: "Half Dome",
|
|
onselect: function () {
|
|
var target = new Cesium.Cartesian3(
|
|
-2489625.0836225147,
|
|
-4393941.44443024,
|
|
3882535.9454173897
|
|
);
|
|
var offset = new Cesium.Cartesian3(
|
|
-6857.40902037546,
|
|
412.3284835694358,
|
|
2147.5545426812023
|
|
);
|
|
viewer.camera.lookAt(target, offset);
|
|
viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
|
|
},
|
|
},
|
|
{
|
|
text: "San Francisco Bay",
|
|
onselect: function () {
|
|
var target = new Cesium.Cartesian3(
|
|
-2708814.85583248,
|
|
-4254159.450845907,
|
|
3891403.9457429945
|
|
);
|
|
var offset = new Cesium.Cartesian3(
|
|
70642.66030209465,
|
|
-31661.517948317807,
|
|
35505.179997143336
|
|
);
|
|
viewer.camera.lookAt(target, offset);
|
|
viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
|
|
},
|
|
},
|
|
],
|
|
"zoomButtons"
|
|
);
|
|
|
|
var terrainSamplePositions;
|
|
|
|
function lookAtMtEverest() {
|
|
var target = new Cesium.Cartesian3(
|
|
300770.50872389384,
|
|
5634912.131394585,
|
|
2978152.2865545116
|
|
);
|
|
var offset = new Cesium.Cartesian3(
|
|
6344.974098678562,
|
|
-793.3419798081741,
|
|
2499.9508860763162
|
|
);
|
|
viewer.camera.lookAt(target, offset);
|
|
viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
|
|
}
|
|
|
|
function sampleTerrainSuccess(terrainSamplePositions) {
|
|
var ellipsoid = Cesium.Ellipsoid.WGS84;
|
|
|
|
//By default, Cesium does not obsure geometry
|
|
//behind terrain. Setting this flag enables that.
|
|
viewer.scene.globe.depthTestAgainstTerrain = true;
|
|
|
|
viewer.entities.suspendEvents();
|
|
viewer.entities.removeAll();
|
|
|
|
for (var i = 0; i < terrainSamplePositions.length; ++i) {
|
|
var position = terrainSamplePositions[i];
|
|
|
|
viewer.entities.add({
|
|
name: position.height.toFixed(1),
|
|
position: ellipsoid.cartographicToCartesian(position),
|
|
billboard: {
|
|
verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
|
|
scale: 0.7,
|
|
image: "../images/facility.gif",
|
|
},
|
|
label: {
|
|
text: position.height.toFixed(1),
|
|
font: "10pt monospace",
|
|
horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
|
|
pixelOffset: new Cesium.Cartesian2(0, -14),
|
|
fillColor: Cesium.Color.BLACK,
|
|
outlineColor: Cesium.Color.BLACK,
|
|
showBackground: true,
|
|
backgroundColor: new Cesium.Color(0.9, 0.9, 0.9, 0.7),
|
|
backgroundPadding: new Cesium.Cartesian2(4, 3),
|
|
},
|
|
});
|
|
}
|
|
viewer.entities.resumeEvents();
|
|
}
|
|
|
|
function createGrid(rectangleHalfSize) {
|
|
var gridWidth = 41;
|
|
var gridHeight = 41;
|
|
var everestLatitude = Cesium.Math.toRadians(27.988257);
|
|
var everestLongitude = Cesium.Math.toRadians(86.925145);
|
|
var e = new Cesium.Rectangle(
|
|
everestLongitude - rectangleHalfSize,
|
|
everestLatitude - rectangleHalfSize,
|
|
everestLongitude + rectangleHalfSize,
|
|
everestLatitude + rectangleHalfSize
|
|
);
|
|
var terrainSamplePositions = [];
|
|
for (var y = 0; y < gridHeight; ++y) {
|
|
for (var x = 0; x < gridWidth; ++x) {
|
|
var longitude = Cesium.Math.lerp(
|
|
e.west,
|
|
e.east,
|
|
x / (gridWidth - 1)
|
|
);
|
|
var latitude = Cesium.Math.lerp(
|
|
e.south,
|
|
e.north,
|
|
y / (gridHeight - 1)
|
|
);
|
|
var position = new Cesium.Cartographic(longitude, latitude);
|
|
terrainSamplePositions.push(position);
|
|
}
|
|
}
|
|
return terrainSamplePositions;
|
|
}
|
|
|
|
Sandcastle.addToggleButton(
|
|
"Enable Lighting",
|
|
viewer.scene.globe.enableLighting,
|
|
function (checked) {
|
|
viewer.scene.globe.enableLighting = checked;
|
|
}
|
|
);
|
|
|
|
Sandcastle.addToggleButton(
|
|
"Enable fog",
|
|
viewer.scene.fog.enabled,
|
|
function (checked) {
|
|
viewer.scene.fog.enabled = checked;
|
|
}
|
|
);
|
|
|
|
Sandcastle.addToolbarButton(
|
|
"Sample Everest Terrain at Level 9",
|
|
function () {
|
|
var terrainSamplePositions = createGrid(0.005);
|
|
Cesium.when(
|
|
Cesium.sampleTerrain(
|
|
viewer.terrainProvider,
|
|
9,
|
|
terrainSamplePositions
|
|
),
|
|
sampleTerrainSuccess
|
|
);
|
|
lookAtMtEverest();
|
|
},
|
|
"sampleButtons"
|
|
);
|
|
|
|
Sandcastle.addToolbarButton(
|
|
"Sample Most Detailed Everest Terrain",
|
|
function () {
|
|
if (!Cesium.defined(viewer.terrainProvider.availability)) {
|
|
window.alert(
|
|
"sampleTerrainMostDetailed is not supported for the selected terrain provider"
|
|
);
|
|
return;
|
|
}
|
|
var terrainSamplePositions = createGrid(0.0005);
|
|
Cesium.when(
|
|
Cesium.sampleTerrainMostDetailed(
|
|
viewer.terrainProvider,
|
|
terrainSamplePositions
|
|
),
|
|
sampleTerrainSuccess
|
|
);
|
|
lookAtMtEverest();
|
|
},
|
|
"sampleButtons"
|
|
);
|
|
|
|
//Sandcastle_End
|
|
Sandcastle.finishedLoading();
|
|
}
|
|
if (typeof Cesium !== "undefined") {
|
|
window.startupCalled = true;
|
|
startup(Cesium);
|
|
}
|
|
</script>
|
|
</body>
|
|
</html>
|