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measurement.html
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measurement.html
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<!DOCTYPE html>
<html lang="en">
<head>
<!-- Use correct character set. -->
<meta charset="utf-8">
<!-- Tell IE to use the latest, best version. -->
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<!-- Make the application on mobile take up the full browser screen and disable user scaling. -->
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
<title>3D Measure</title>
<script src="Cesium/Cesium.js"></script>
<style>
@import url(Cesium/Widgets/widgets.css);
html, body, #cesiumContainer {
width: 100%; height: 100%; margin: 0; padding: 0; overflow: hidden;
}
</style>
</head>
<body>
<div id="cesiumContainer"></div>
<script>
Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI0ZDIwYzM1MC1kYWNmLTQyMWQtYWFlNi02YWY2MjFjZDZkZmMiLCJpZCI6ODc5MSwic2NvcGVzIjpbImFzciIsImdjIl0sImlhdCI6MTU1MjgyMzI3N30.FVbhAcjUughhOY044nMiv9gYLXf8pQI7kFnvGtjNPGE';
// Construct the viewer, with a high-res terrain source pre-selected.
var viewer = new Cesium.Viewer('cesiumContainer');
var camera = viewer.camera;
var scene = viewer.scene;
var globe = scene.globe;
var ellipsoid = Cesium.Ellipsoid.WGS84;
var geodesic = new Cesium.EllipsoidGeodesic();
var tileset = scene.primitives.add(new Cesium.Cesium3DTileset({
url: 'Tileset/tileset.json'
}));
tileset.readyPromise.then(function() {
// console.log(tileset);
var boundingSphere = tileset.boundingSphere;
camera.viewBoundingSphere(boundingSphere, new Cesium.HeadingPitchRange(0.5, -0.2, boundingSphere.radius * 4.0));
camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
}).otherwise(function(error) {
throw(error);
});
tileset.allTilesLoaded.addEventListener(function() {
console.log('All tiles are loaded');
});
var points = scene.primitives.add(new Cesium.PointPrimitiveCollection());
var point1, point2;
var point1GeoPosition, point2GeoPosition;
var polylines = scene.primitives.add(new Cesium.PolylineCollection());
var polyline1, polyline2, polyline3;
var distanceLabel, verticalLabel, horizontalLabel;
var LINEPOINTCOLOR = Cesium.Color.RED;
// var labels = scene.primitives.add(new Cesium.LabelCollection({scene: scene}));
var label = {
font : '14px monospace',
showBackground : true,
horizontalOrigin : Cesium.HorizontalOrigin.CENTER,
verticalOrigin : Cesium.VerticalOrigin.CENTER,
pixelOffset : new Cesium.Cartesian2(0, 0),
eyeOffset: new Cesium.Cartesian3(0,0,-50),
fillColor: Cesium.Color.WHITE,
};
function addDistanceLabel(point1, point2, height) {
point1.cartographic = ellipsoid.cartesianToCartographic(point1.position);
point2.cartographic = ellipsoid.cartesianToCartographic(point2.position);
point1.longitude = parseFloat(Cesium.Math.toDegrees(point1.position.x));
point1.latitude = parseFloat(Cesium.Math.toDegrees(point1.position.y));
point2.longitude = parseFloat(Cesium.Math.toDegrees(point2.position.x));
point2.latitude = parseFloat(Cesium.Math.toDegrees(point2.position.y));
label.text = getHorizontalDistanceString(point1, point2);
horizontalLabel = viewer.entities.add({
position: getMidpoint(point1, point2, point1GeoPosition.height),
label: label
});
label.text = getDistanceString(point1, point2);
distanceLabel = viewer.entities.add({
position: getMidpoint(point1, point2, height),
label: label
});
label.text = getVerticalDistanceString();
verticalLabel = viewer.entities.add({
position: getMidpoint(point2, point2, height),
label: label
});
};
function getHorizontalDistanceString(point1, point2) {
geodesic.setEndPoints(point1.cartographic, point2.cartographic);
var meters = geodesic.surfaceDistance.toFixed(2);
if (meters >= 1000) {
return (meters / 1000).toFixed(1) + ' км';
}
return meters + ' м';
};
function getVerticalDistanceString() {
var heights = [point1GeoPosition.height, point2GeoPosition.height];
var meters = Math.max.apply(Math, heights) - Math.min.apply(Math, heights);
if (meters >= 1000) {
return (meters / 1000).toFixed(1) + ' км';
}
return meters.toFixed(2) + ' м';
};
function getDistanceString(point1, point2) {
geodesic.setEndPoints(point1.cartographic, point2.cartographic);
var horizontalMeters = geodesic.surfaceDistance.toFixed(2);
var heights = [point1GeoPosition.height, point2GeoPosition.height];
var verticalMeters = Math.max.apply(Math, heights) - Math.min.apply(Math, heights);
var meters = Math.pow((Math.pow(horizontalMeters, 2) + Math.pow(verticalMeters, 2)), 0.5);
if (meters >= 1000) {
return (meters / 1000).toFixed(1) + ' км';
}
return meters.toFixed(2) + ' м';
};
function getMidpoint(point1, point2, height) {
var scratch = new Cesium.Cartographic();
geodesic.setEndPoints(point1.cartographic, point2.cartographic);
var midpointCartographic = geodesic.interpolateUsingFraction(0.5, scratch);
return Cesium.Cartesian3.fromRadians(midpointCartographic.longitude, midpointCartographic.latitude, height);
};
// Mouse over the globe to see the cartographic position
var handler = new Cesium.ScreenSpaceEventHandler(scene.canvas);
handler.setInputAction(function(click) {
if (scene.mode !== Cesium.SceneMode.MORPHING) {
var pickedObject = scene.pick(click.position);
if (scene.pickPositionSupported && Cesium.defined(pickedObject)) {
var cartesian = viewer.scene.pickPosition(click.position);
// console.log(cartesian);
if (Cesium.defined(cartesian)) {
if (points.length === 2) {
points.removeAll();
polylines.removeAll();
viewer.entities.remove(distanceLabel);
viewer.entities.remove(horizontalLabel);
viewer.entities.remove(verticalLabel);
}
//add first point
if (points.length === 0) {
point1 = points.add({
position : new Cesium.Cartesian3(cartesian.x, cartesian.y, cartesian.z),
color : LINEPOINTCOLOR
});
} //add second point and lines
else if (points.length === 1) {
point2 = points.add({
position : new Cesium.Cartesian3(cartesian.x, cartesian.y, cartesian.z),
color : LINEPOINTCOLOR
});
point1GeoPosition = Cesium.Cartographic.fromCartesian(point1.position);
point2GeoPosition = Cesium.Cartographic.fromCartesian(point2.position);
point3GeoPosition = Cesium.Cartographic.fromCartesian(new Cesium.Cartesian3(point2.position.x, point2.position.y, point1.position.z));
var pl1Positions = [
new Cesium.Cartesian3.fromRadians(point1GeoPosition.longitude, point1GeoPosition.latitude, point1GeoPosition.height),
new Cesium.Cartesian3.fromRadians(point2GeoPosition.longitude, point2GeoPosition.latitude, point2GeoPosition.height)
];
var pl2Positions = [
new Cesium.Cartesian3.fromRadians(point2GeoPosition.longitude, point2GeoPosition.latitude, point2GeoPosition.height),
new Cesium.Cartesian3.fromRadians(point2GeoPosition.longitude, point2GeoPosition.latitude, point1GeoPosition.height)
];
var pl3Positions = [
new Cesium.Cartesian3.fromRadians(point1GeoPosition.longitude, point1GeoPosition.latitude, point1GeoPosition.height),
new Cesium.Cartesian3.fromRadians(point2GeoPosition.longitude, point2GeoPosition.latitude, point1GeoPosition.height)
];
polyline1 = polylines.add({
show : true,
positions : pl1Positions,
width : 1,
material: new Cesium.Material({
fabric : {
type : 'Color',
uniforms : {
color : LINEPOINTCOLOR
}
}
})
});
polyline2 = polylines.add({
show : true,
positions : pl2Positions,
width : 1,
material: new Cesium.Material({
fabric : {
type : 'PolylineDash',
uniforms : {
color : LINEPOINTCOLOR,
}
},
})
});
polyline3 = polylines.add({
show : true,
positions : pl3Positions,
width : 1,
material: new Cesium.Material({
fabric : {
type : 'PolylineDash',
uniforms : {
color : LINEPOINTCOLOR,
}
},
})
});
var labelZ;
if (point2GeoPosition.height >= point1GeoPosition.height) {
labelZ = point1GeoPosition.height + (point2GeoPosition.height - point1GeoPosition.height)/2.0;
} else {
labelZ = point2GeoPosition.height + (point1GeoPosition.height - point2GeoPosition.height)/2.0;
};
addDistanceLabel(point1, point2, labelZ);
}
}
}
}
}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
</script>
</body>
</html>