1. A concise explanation of the problem you’re experiencing.
2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.
3. Context. Why do you need to do this? We might know a better way to accomplish your goal.
4. The Cesium version you’re using, your operating system and browser.
i want to display multiple color polyline in cesium。
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var viewer = new Cesium.Viewer(‘cesiumContainer’);
var primitive = new Cesium.Primitive({
geometryInstances : new Cesium.GeometryInstance({
geometry : new Cesium.PolylineGeometry({
positions : [
Cesium.Cartesian3.fromElements(-2822918.76, -1347627.64, 5539750.33),
Cesium.Cartesian3.fromElements(-2860091, -1790883.7, 6104936.09),
Cesium.Cartesian3.fromElements(-2869994.31, -2212991.67, 6598178.01)
],
width : 2.0,
vertexFormat : Cesium.PolylineColorAppearance.VERTEX_FORMAT,
colors: [Cesium.Color.RED, Cesium.Color.BLUE],
colorsPerVertex: false
})
}),
appearance : new Cesium.PolylineColorAppearance({
translucent : false
})
});
viewer.scene.primitives.add(primitive);
but can’t chang primitive positions at run time;
entity can chang positions at runtime with callback，but can’t display multiple color。
how can i do this?