2025-03-11 08:25:45 +00:00
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<!--********************************************************************
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* by jiawanlong
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*********************************************************************-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8" />
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2025-03-19 03:00:22 +00:00
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<link rel="stylesheet" href="./../../libs/cesium/Cesium1.98/Widgets/widgets.css" />
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<script type="text/javascript" src="./../../libs/cesium/Cesium1.98/Cesium.js"></script>
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2025-03-11 08:25:45 +00:00
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</head>
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<body style="
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margin: 0;
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overflow: hidden;
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background: #fff;
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width: 100%;
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height: 100%;
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position: absolute;
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top: 0;
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">
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<div id="map" style="margin: 0 auto; width: 100%; height: 100%"></div>
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<script type="text/javascript">
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Cesium.Ion.defaultAccessToken =
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2025-05-29 02:59:44 +00:00
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"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiIyNDMxOTA2NS1lY2Q3LTQ0YmUtOTE1Mi1iNWE2OGYwZjc0MjkiLCJpZCI6MjM1NjMwLCJpYXQiOjE3MzA3MjQzMTJ9.Xhu-9FyVEyqBKWEr0V9Sybt-elTCWHt9peL9-mNh-4E";
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2025-03-11 08:25:45 +00:00
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const viewer = new Cesium.Viewer("map", {
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contextOptions: {
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requestWebgl1: true,
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},
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});
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viewer.scene.debugShowFramesPerSecond = true;
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var controls = [
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Cesium.Cartesian3.fromDegrees(110, 10),
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Cesium.Cartesian3.fromDegrees(111, 11),
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Cesium.Cartesian3.fromDegrees(112, 9),
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Cesium.Cartesian3.fromDegrees(114, 10),
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Cesium.Cartesian3.fromDegrees(113, 8),
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];
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for (var i = 0; i < controls.length; i++) {
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viewer.entities.add({
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position: controls[i],
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point: {
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color: Cesium.Color.RED,
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pixelSize: 10,
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},
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});
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}
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// -----------------------直线--------------------------
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var spline = new Cesium.LinearSpline({
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times: [0.0, 0.25, 0.5, 0.75, 1],
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points: controls,
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});
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var positions = [];
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for (var i = 0; i <= 100; i++) {
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var cartesian3 = spline.evaluate(i / 100);
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positions.push(cartesian3);
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viewer.entities.add({
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position: cartesian3,
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point: {
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color: Cesium.Color.YELLOW,
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pixelSize: 6,
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},
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});
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}
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viewer.entities.add({
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name: "LinearSpline",
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polyline: {
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positions: positions,
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width: 3,
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material: Cesium.Color.GREEN,
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},
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});
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// -----------------------直线--------------------------
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// -----------------------曲线--------------------------
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// 创建CatmullRomSpline对象
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var spline = new Cesium.CatmullRomSpline({
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points: controls,
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times: [0.0, 0.25, 0.5, 0.75, 1],
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});
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// 插值100个点
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var positions = [];
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for (var i = 0; i <= 100; i++) {
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var cartesian3 = spline.evaluate(i / 100);
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positions.push(cartesian3);
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viewer.entities.add({
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position: cartesian3,
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point: {
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color: Cesium.Color.BLUE,
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pixelSize: 6,
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},
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});
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}
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// 将插值所有的点绘制成线
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viewer.entities.add({
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name: "CatmullRomSpline",
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polyline: {
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positions: positions,
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width: 3,
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material: Cesium.Color.WHITE,
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},
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});
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// -----------------------曲线--------------------------
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viewer.zoomTo(viewer.entities);
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</script>
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</body>
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</html>
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