How to get pointcloud property?

my .las file have classification property,conversion 3DTiles,how to get classification property?

Hi @zyy1987,

We have a Sandcastle demo that demonstrates this functionality here: Cesium Sandcastle. In particular, this block of code is responsible to assigning points of the point cloud different colors depending on their id:

classificationTileset.style = new Cesium.Cesium3DTileStyle({
  color: {
    conditions: [
      ["${id} === 'roof1'", "color('#004FFF', 0.5)"],
      ["${id} === 'towerBottom1'", "color('#33BB66', 0.5)"],
      ["${id} === 'towerTop1'", "color('#0099AA', 0.5)"],
      ["${id} === 'roof2'", "color('#004FFF', 0.5)"],
      ["${id} === 'tower3'", "color('#FF8833', 0.5)"],
      ["${id} === 'tower4'", "color('#FFAA22', 0.5)"],
      ["true", "color('#FFFF00', 0.5)"],
    ],
  },
});

Let me know if you need further assistance!

Best,
Janine

Thank you for your reply!
knew it in advance for id property,i want get property when load 3DTiles,get property from 3DTiles。