<!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 the camera to control the view, and create custom event handlers for input."
/>
<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">
<table class="infoPanel">
<tbody>
<tr>
<td>Click on the Cesium display to start.</td>
</tr>
<tr>
<td>w/s - move forward/backward</td>
</tr>
<tr>
<td>a/d - move left/right</td>
</tr>
<tr>
<td>q/e - move up/down</td>
</tr>
<tr>
<td>
left mouse button down plus mouse move changes the look direction
</td>
</tr>
</tbody>
</table>
</div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
"use strict";
//Sandcastle_Begin
var viewer = new Cesium.Viewer("cesiumContainer");
var scene = viewer.scene;
var canvas = viewer.canvas;
canvas.setAttribute("tabindex", "0"); // needed to put focus on the canvas
canvas.onclick = function () {
canvas.focus();
};
var ellipsoid = scene.globe.ellipsoid;
// disable the default event handlers
scene.screenSpaceCameraController.enableRotate = false;
scene.screenSpaceCameraController.enableTranslate = false;
scene.screenSpaceCameraController.enableZoom = false;
scene.screenSpaceCameraController.enableTilt = false;
scene.screenSpaceCameraController.enableLook = false;
var startMousePosition;
var mousePosition;
var flags = {
looking: false,
moveForward: false,
moveBackward: false,
moveUp: false,
moveDown: false,
moveLeft: false,
moveRight: false,
};
var handler = new Cesium.ScreenSpaceEventHandler(canvas);
handler.setInputAction(function (movement) {
flags.looking = true;
mousePosition = startMousePosition = Cesium.Cartesian3.clone(
movement.position
);
}, Cesium.ScreenSpaceEventType.LEFT_DOWN);
handler.setInputAction(function (movement) {
mousePosition = movement.endPosition;
}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
handler.setInputAction(function (position) {
flags.looking = false;
}, Cesium.ScreenSpaceEventType.LEFT_UP);
function getFlagForKeyCode(keyCode) {
switch (keyCode) {
case "W".charCodeAt(0):
return "moveForward";
case "S".charCodeAt(0):
return "moveBackward";
case "Q".charCodeAt(0):
return "moveUp";
case "E".charCodeAt(0):
return "moveDown";
case "D".charCodeAt(0):
return "moveRight";
case "A".charCodeAt(0):
return "moveLeft";
default:
return undefined;
}
}
document.addEventListener(
"keydown",
function (e) {
var flagName = getFlagForKeyCode(e.keyCode);
if (typeof flagName !== "undefined") {
flags[flagName] = true;
}
},
false
);
document.addEventListener(
"keyup",
function (e) {
var flagName = getFlagForKeyCode(e.keyCode);
if (typeof flagName !== "undefined") {
flags[flagName] = false;
}
},
false
);
viewer.clock.onTick.addEventListener(function (clock) {
var camera = viewer.camera;
if (flags.looking) {
var width = canvas.clientWidth;
var height = canvas.clientHeight;
// Coordinate (0.0, 0.0) will be where the mouse was clicked.
var x = (mousePosition.x - startMousePosition.x) / width;
var y = -(mousePosition.y - startMousePosition.y) / height;
var lookFactor = 0.05;
camera.lookRight(x * lookFactor);
camera.lookUp(y * lookFactor);
}
// Change movement speed based on the distance of the camera to the surface of the ellipsoid.
var cameraHeight = ellipsoid.cartesianToCartographic(camera.position)
.height;
var moveRate = cameraHeight / 100.0;
if (flags.moveForward) {
camera.moveForward(moveRate);
}
if (flags.moveBackward) {
camera.moveBackward(moveRate);
}
if (flags.moveUp) {
camera.moveUp(moveRate);
}
if (flags.moveDown) {
camera.moveDown(moveRate);
}
if (flags.moveLeft) {
camera.moveLeft(moveRate);
}
if (flags.moveRight) {
camera.moveRight(moveRate);
}
});
//Sandcastle_End
Sandcastle.finishedLoading();
}
if (typeof Cesium !== "undefined") {
window.startupCalled = true;
startup(Cesium);
}
</script>
</body>
</html>