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Picking.html
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Picking.html
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<!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 mouse to select and manipulate objects in the scene."
/>
<meta name="cesium-sandcastle-labels" content="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>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
"use strict";
//Sandcastle_Begin
const viewer = new Cesium.Viewer("cesiumContainer", {
selectionIndicator: false,
infoBox: false,
});
const scene = viewer.scene;
if (!scene.pickPositionSupported) {
window.alert("This browser does not support pickPosition.");
}
let handler;
Sandcastle.addDefaultToolbarButton(
"Show Cartographic Position on Mouse Over",
function () {
const entity = viewer.entities.add({
label: {
show: false,
showBackground: true,
font: "14px monospace",
horizontalOrigin: Cesium.HorizontalOrigin.LEFT,
verticalOrigin: Cesium.VerticalOrigin.TOP,
pixelOffset: new Cesium.Cartesian2(15, 0),
},
});
// Mouse over the globe to see the cartographic position
handler = new Cesium.ScreenSpaceEventHandler(scene.canvas);
handler.setInputAction(function (movement) {
const cartesian = viewer.camera.pickEllipsoid(
movement.endPosition,
scene.globe.ellipsoid
);
if (cartesian) {
const cartographic = Cesium.Cartographic.fromCartesian(
cartesian
);
const longitudeString = Cesium.Math.toDegrees(
cartographic.longitude
).toFixed(2);
const latitudeString = Cesium.Math.toDegrees(
cartographic.latitude
).toFixed(2);
entity.position = cartesian;
entity.label.show = true;
entity.label.text =
`Lon: ${` ${longitudeString}`.slice(-7)}\u00B0` +
`\nLat: ${` ${latitudeString}`.slice(-7)}\u00B0`;
} else {
entity.label.show = false;
}
}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
}
);
Sandcastle.addToolbarButton("Pick Entity", function () {
const entity = viewer.entities.add({
position: Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard: {
image: "../images/Cesium_Logo_overlay.png",
},
});
// If the mouse is over the billboard, change its scale and color
handler = new Cesium.ScreenSpaceEventHandler(scene.canvas);
handler.setInputAction(function (movement) {
const pickedObject = scene.pick(movement.endPosition);
if (Cesium.defined(pickedObject) && pickedObject.id === entity) {
entity.billboard.scale = 2.0;
entity.billboard.color = Cesium.Color.YELLOW;
} else {
entity.billboard.scale = 1.0;
entity.billboard.color = Cesium.Color.WHITE;
}
}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
});
Sandcastle.addToolbarButton("Drill-Down Picking", function () {
const pickedEntities = new Cesium.EntityCollection();
const pickColor = Cesium.Color.YELLOW.withAlpha(0.5);
function makeProperty(entity, color) {
const colorProperty = new Cesium.CallbackProperty(function (
time,
result
) {
if (pickedEntities.contains(entity)) {
return pickColor.clone(result);
}
return color.clone(result);
},
false);
entity.polygon.material = new Cesium.ColorMaterialProperty(
colorProperty
);
}
const red = viewer.entities.add({
polygon: {
hierarchy: Cesium.Cartesian3.fromDegreesArray([
-70.0,
30.0,
-60.0,
30.0,
-60.0,
40.0,
-70.0,
40.0,
]),
height: 0,
},
});
makeProperty(red, Cesium.Color.RED.withAlpha(0.5));
const blue = viewer.entities.add({
polygon: {
hierarchy: Cesium.Cartesian3.fromDegreesArray([
-75.0,
34.0,
-63.0,
34.0,
-63.0,
40.0,
-75.0,
40.0,
]),
height: 0,
},
});
makeProperty(blue, Cesium.Color.BLUE.withAlpha(0.5));
const green = viewer.entities.add({
polygon: {
hierarchy: Cesium.Cartesian3.fromDegreesArray([
-67.0,
36.0,
-55.0,
36.0,
-55.0,
30.0,
-67.0,
30.0,
]),
height: 0,
},
});
makeProperty(green, Cesium.Color.GREEN.withAlpha(0.5));
// Move the primitive that the mouse is over to the top.
handler = new Cesium.ScreenSpaceEventHandler(scene.canvas);
handler.setInputAction(function (movement) {
// get an array of all primitives at the mouse position
const pickedObjects = scene.drillPick(movement.endPosition);
if (Cesium.defined(pickedObjects)) {
//Update the collection of picked entities.
pickedEntities.removeAll();
for (let i = 0; i < pickedObjects.length; ++i) {
const entity = pickedObjects[i].id;
pickedEntities.add(entity);
}
}
}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
});
Sandcastle.addToolbarButton("Pick position", function () {
const modelEntity = viewer.entities.add({
name: "milktruck",
position: Cesium.Cartesian3.fromDegrees(-123.0744619, 44.0503706),
model: {
uri:
"../../SampleData/models/CesiumMilkTruck/CesiumMilkTruck.glb",
},
});
viewer.zoomTo(modelEntity);
const labelEntity = viewer.entities.add({
label: {
show: false,
showBackground: true,
font: "14px monospace",
horizontalOrigin: Cesium.HorizontalOrigin.LEFT,
verticalOrigin: Cesium.VerticalOrigin.TOP,
pixelOffset: new Cesium.Cartesian2(15, 0),
},
});
// Mouse over the globe to see the cartographic position
handler = new Cesium.ScreenSpaceEventHandler(scene.canvas);
handler.setInputAction(function (movement) {
let foundPosition = false;
const scene = viewer.scene;
if (scene.mode !== Cesium.SceneMode.MORPHING) {
const pickedObject = scene.pick(movement.endPosition);
if (
scene.pickPositionSupported &&
Cesium.defined(pickedObject) &&
pickedObject.id === modelEntity
) {
const cartesian = viewer.scene.pickPosition(
movement.endPosition
);
if (Cesium.defined(cartesian)) {
const cartographic = Cesium.Cartographic.fromCartesian(
cartesian
);
const longitudeString = Cesium.Math.toDegrees(
cartographic.longitude
).toFixed(2);
const latitudeString = Cesium.Math.toDegrees(
cartographic.latitude
).toFixed(2);
const heightString = cartographic.height.toFixed(2);
labelEntity.position = cartesian;
labelEntity.label.show = true;
labelEntity.label.text =
`Lon: ${` ${longitudeString}`.slice(-7)}\u00B0` +
`\nLat: ${` ${latitudeString}`.slice(-7)}\u00B0` +
`\nAlt: ${` ${heightString}`.slice(-7)}m`;
labelEntity.label.eyeOffset = new Cesium.Cartesian3(
0.0,
0.0,
-cartographic.height *
(scene.mode === Cesium.SceneMode.SCENE2D ? 1.5 : 1.0)
);
foundPosition = true;
}
}
}
if (!foundPosition) {
labelEntity.label.show = false;
}
}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
});
Sandcastle.reset = function () {
viewer.entities.removeAll();
handler = handler && handler.destroy();
};
//Sandcastle_End
Sandcastle.finishedLoading();
}
if (typeof Cesium !== "undefined") {
window.startupCalled = true;
startup(Cesium);
}
</script>
</body>
</html>