mirror of https://github.com/CesiumGS/cesium.git
183 lines
6.0 KiB
HTML
183 lines
6.0 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="An example for how to use the HeightReference property on different geometry entities."
|
|
/>
|
|
<meta name="cesium-sandcastle-labels" content="Geometries" />
|
|
<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>
|
|
<script id="cesium_sandcastle_script">
|
|
window.startup = async function (Cesium) {
|
|
"use strict";
|
|
//Sandcastle_Begin
|
|
const ellipsoidTerrainProvider = new Cesium.EllipsoidTerrainProvider();
|
|
const worldTerrain = Cesium.Terrain.fromWorldTerrain();
|
|
|
|
const viewer = new Cesium.Viewer("cesiumContainer", {
|
|
baseLayerPicker: false,
|
|
terrain: worldTerrain,
|
|
});
|
|
|
|
// depth test against terrain is required to make the polygons clamp to terrain
|
|
// instead of showing through it from underground
|
|
viewer.scene.globe.depthTestAgainstTerrain = true;
|
|
|
|
Sandcastle.addToolbarMenu([
|
|
{
|
|
text: "Polygons",
|
|
onselect: function () {
|
|
viewer.entities.removeAll();
|
|
addPolygons();
|
|
},
|
|
},
|
|
{
|
|
text: "Boxes, Cylinders and Ellipsoids",
|
|
onselect: function () {
|
|
viewer.entities.removeAll();
|
|
addGeometries();
|
|
},
|
|
},
|
|
]);
|
|
|
|
Sandcastle.addToolbarMenu([
|
|
{
|
|
text: "Terrain Enabled",
|
|
onselect: function () {
|
|
viewer.scene.setTerrain(worldTerrain);
|
|
},
|
|
},
|
|
{
|
|
text: "Terrain Disabled",
|
|
onselect: function () {
|
|
viewer.scene.terrainProvider = ellipsoidTerrainProvider;
|
|
},
|
|
},
|
|
]);
|
|
|
|
const longitude = 6.950615989890521;
|
|
const latitude = 45.79546589994886;
|
|
const delta = 0.001;
|
|
|
|
function addGeometry(i, j) {
|
|
const west = longitude + delta * i;
|
|
const north = latitude + delta * j + delta;
|
|
|
|
const type = Math.floor(Math.random() * 3);
|
|
if (type === 0) {
|
|
viewer.entities.add({
|
|
position: Cesium.Cartesian3.fromDegrees(west, north, 0.0),
|
|
box: {
|
|
dimensions: new Cesium.Cartesian3(40.0, 30.0, 50.0),
|
|
material: Cesium.Color.fromRandom({ alpha: 1.0 }),
|
|
heightReference: Cesium.HeightReference.CLAMP_TO_GROUND,
|
|
},
|
|
});
|
|
} else if (type === 1) {
|
|
viewer.entities.add({
|
|
position: Cesium.Cartesian3.fromDegrees(west, north, 0.0),
|
|
cylinder: {
|
|
length: 50.0,
|
|
topRadius: 20.0,
|
|
bottomRadius: 20.0,
|
|
material: Cesium.Color.fromRandom({ alpha: 1.0 }),
|
|
heightReference: Cesium.HeightReference.CLAMP_TO_GROUND,
|
|
},
|
|
});
|
|
} else {
|
|
viewer.entities.add({
|
|
position: Cesium.Cartesian3.fromDegrees(west, north, 0.0),
|
|
ellipsoid: {
|
|
radii: new Cesium.Cartesian3(20.0, 15.0, 25.0),
|
|
material: Cesium.Color.fromRandom({ alpha: 1.0 }),
|
|
heightReference: Cesium.HeightReference.CLAMP_TO_GROUND,
|
|
},
|
|
});
|
|
}
|
|
}
|
|
|
|
function addGeometries() {
|
|
for (let i = 0; i < 4; i++) {
|
|
for (let j = 0; j < 4; j++) {
|
|
addGeometry(i, j);
|
|
}
|
|
}
|
|
viewer.zoomTo(viewer.entities);
|
|
}
|
|
|
|
function addPolygon(i, j) {
|
|
const west = longitude + delta * i;
|
|
const east = longitude + delta * i + delta;
|
|
|
|
const south = latitude + delta * j;
|
|
const north = latitude + delta * j + delta;
|
|
const a = Cesium.Cartesian3.fromDegrees(west, south);
|
|
const b = Cesium.Cartesian3.fromDegrees(west, north);
|
|
const c = Cesium.Cartesian3.fromDegrees(east, north);
|
|
const d = Cesium.Cartesian3.fromDegrees(east, south);
|
|
|
|
const positions = [a, b, c, d];
|
|
viewer.entities.add({
|
|
polygon: {
|
|
hierarchy: positions,
|
|
material: Cesium.Color.fromRandom({ alpha: 1 }),
|
|
height: 40.0,
|
|
heightReference: Cesium.HeightReference.RELATIVE_TO_GROUND,
|
|
extrudedHeight: 0.0,
|
|
extrudedHeightReference: Cesium.HeightReference.CLAMP_TO_GROUND,
|
|
},
|
|
});
|
|
}
|
|
|
|
function addPolygons() {
|
|
// create 16 polygons that are side-by-side
|
|
for (let i = 0; i < 4; i++) {
|
|
for (let j = 0; j < 4; j++) {
|
|
addPolygon(i, j);
|
|
}
|
|
}
|
|
viewer.camera.lookAt(
|
|
Cesium.Cartesian3.fromDegrees(longitude, latitude, 1500),
|
|
new Cesium.HeadingPitchRange(
|
|
-Cesium.Math.PI / 2,
|
|
-Cesium.Math.PI_OVER_FOUR,
|
|
2000,
|
|
),
|
|
);
|
|
viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
|
|
}
|
|
//Sandcastle_End
|
|
};
|
|
if (typeof Cesium !== "undefined") {
|
|
window.startupCalled = true;
|
|
window.startup(Cesium).catch((error) => {
|
|
"use strict";
|
|
console.error(error);
|
|
});
|
|
Sandcastle.finishedLoading();
|
|
}
|
|
</script>
|
|
</body>
|
|
</html>
|