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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="Use HeadingPitchRoll" />
<meta name="cesium-sandcastle-labels" content="Tutorials" />
<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">
<table class="infoPanel">
<tbody>
<tr>
<td>
Click on the 3D window then use the keyboard to change settings.
</td>
</tr>
<tr>
<td>Heading: <span id="heading"></span>°</td>
</tr>
<tr>
<td>← to left/→ to right</td>
</tr>
<tr>
<td>Pitch: <span id="pitch"></span>°</td>
</tr>
<tr>
<td>↑ to up/↓ to down</td>
</tr>
<tr>
<td>roll: <span id="roll"></span>°</td>
</tr>
<tr>
<td>← + ⇧ left/→ + ⇧ right</td>
</tr>
<tr>
<td>Speed: <span id="speed"></span>m/s</td>
</tr>
<tr>
<td>↑ + ⇧ to speed up/↓ + ⇧ to speed down</td>
</tr>
<tr>
<td>
following aircraft
<input id="fromBehind" type="checkbox" />
</td>
</tr>
</tbody>
</table>
</div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
"use strict";
//Sandcastle_Begin
var viewer = new Cesium.Viewer("cesiumContainer", {
shouldAnimate: true,
});
var canvas = viewer.canvas;
canvas.setAttribute("tabindex", "0"); // needed to put focus on the canvas
canvas.addEventListener("click", function () {
canvas.focus();
});
canvas.focus();
var scene = viewer.scene;
var pathPosition = new Cesium.SampledPositionProperty();
var entityPath = viewer.entities.add({
position: pathPosition,
name: "path",
path: {
show: true,
leadTime: 0,
trailTime: 60,
width: 10,
resolution: 1,
material: new Cesium.PolylineGlowMaterialProperty({
glowPower: 0.3,
taperPower: 0.3,
color: Cesium.Color.PALEGOLDENROD,
}),
},
});
var camera = viewer.camera;
var controller = scene.screenSpaceCameraController;
var r = 0;
var center = new Cesium.Cartesian3();
var hpRoll = new Cesium.HeadingPitchRoll();
var hpRange = new Cesium.HeadingPitchRange();
var speed = 10;
var deltaRadians = Cesium.Math.toRadians(3.0);
var position = Cesium.Cartesian3.fromDegrees(
-123.0744619,
44.0503706,
5000.0
);
var speedVector = new Cesium.Cartesian3();
var fixedFrameTransform = Cesium.Transforms.localFrameToFixedFrameGenerator(
"north",
"west"
);
var planePrimitive = scene.primitives.add(
Cesium.Model.fromGltf({
url: "../../SampleData/models/CesiumAir/Cesium_Air.glb",
modelMatrix: Cesium.Transforms.headingPitchRollToFixedFrame(
position,
hpRoll,
Cesium.Ellipsoid.WGS84,
fixedFrameTransform
),
minimumPixelSize: 128,
})
);
planePrimitive.readyPromise.then(function (model) {
// Play and loop all animations at half-speed
model.activeAnimations.addAll({
multiplier: 0.5,
loop: Cesium.ModelAnimationLoop.REPEAT,
});
// Zoom to model
r = 2.0 * Math.max(model.boundingSphere.radius, camera.frustum.near);
controller.minimumZoomDistance = r * 0.5;
Cesium.Matrix4.multiplyByPoint(
model.modelMatrix,
model.boundingSphere.center,
center
);
var heading = Cesium.Math.toRadians(230.0);
var pitch = Cesium.Math.toRadians(-20.0);
hpRange.heading = heading;
hpRange.pitch = pitch;
hpRange.range = r * 50.0;
camera.lookAt(center, hpRange);
});
document.addEventListener("keydown", function (e) {
switch (e.keyCode) {
case 40:
if (e.shiftKey) {
// speed down
speed = Math.max(--speed, 1);
} else {
// pitch down
hpRoll.pitch -= deltaRadians;
if (hpRoll.pitch < -Cesium.Math.TWO_PI) {
hpRoll.pitch += Cesium.Math.TWO_PI;
}
}
break;
case 38:
if (e.shiftKey) {
// speed up
speed = Math.min(++speed, 100);
} else {
// pitch up
hpRoll.pitch += deltaRadians;
if (hpRoll.pitch > Cesium.Math.TWO_PI) {
hpRoll.pitch -= Cesium.Math.TWO_PI;
}
}
break;
case 39:
if (e.shiftKey) {
// roll right
hpRoll.roll += deltaRadians;
if (hpRoll.roll > Cesium.Math.TWO_PI) {
hpRoll.roll -= Cesium.Math.TWO_PI;
}
} else {
// turn right
hpRoll.heading += deltaRadians;
if (hpRoll.heading > Cesium.Math.TWO_PI) {
hpRoll.heading -= Cesium.Math.TWO_PI;
}
}
break;
case 37:
if (e.shiftKey) {
// roll left until
hpRoll.roll -= deltaRadians;
if (hpRoll.roll < 0.0) {
hpRoll.roll += Cesium.Math.TWO_PI;
}
} else {
// turn left
hpRoll.heading -= deltaRadians;
if (hpRoll.heading < 0.0) {
hpRoll.heading += Cesium.Math.TWO_PI;
}
}
break;
default:
}
});
var headingSpan = document.getElementById("heading");
var pitchSpan = document.getElementById("pitch");
var rollSpan = document.getElementById("roll");
var speedSpan = document.getElementById("speed");
var fromBehind = document.getElementById("fromBehind");
viewer.scene.preUpdate.addEventListener(function (scene, time) {
speedVector = Cesium.Cartesian3.multiplyByScalar(
Cesium.Cartesian3.UNIT_X,
speed / 10,
speedVector
);
position = Cesium.Matrix4.multiplyByPoint(
planePrimitive.modelMatrix,
speedVector,
position
);
pathPosition.addSample(Cesium.JulianDate.now(), position);
Cesium.Transforms.headingPitchRollToFixedFrame(
position,
hpRoll,
Cesium.Ellipsoid.WGS84,
fixedFrameTransform,
planePrimitive.modelMatrix
);
if (fromBehind.checked) {
// Zoom to model
Cesium.Matrix4.multiplyByPoint(
planePrimitive.modelMatrix,
planePrimitive.boundingSphere.center,
center
);
hpRange.heading = hpRoll.heading;
hpRange.pitch = hpRoll.pitch;
camera.lookAt(center, hpRange);
}
});
viewer.scene.preRender.addEventListener(function (scene, time) {
headingSpan.innerHTML = Cesium.Math.toDegrees(hpRoll.heading).toFixed(
1
);
pitchSpan.innerHTML = Cesium.Math.toDegrees(hpRoll.pitch).toFixed(1);
rollSpan.innerHTML = Cesium.Math.toDegrees(hpRoll.roll).toFixed(1);
speedSpan.innerHTML = speed.toFixed(1);
});
//Sandcastle_End
Sandcastle.finishedLoading();
}
if (typeof Cesium !== "undefined") {
window.startupCalled = true;
startup(Cesium);
}
</script>
</body>
</html>