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概述

图元和实体类似,可以通过图元对象进行属性的动态修改。

javascript
if (primitive) {
  primitive.appearance.material = Cesium.Material.fromType('Color', {
    color: Cesium.Color.YELLOW.withAlpha(0.5)
  })
}

if (primitive2) {
  primitive2.getGeometryInstanceAttributes('rect3').color = Cesium.ColorGeometryInstanceAttribute.toValue(Cesium.Color.GREEN.withAlpha(0.5))
}
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