How to use the image map below as the material after setting the extradedHeight for polygons

CesiumJS
1

image

2

Hi @dalidaliW,

It should be possible to add a texture to an extruded polygon as follows, as shown in this Sandcastle example.

const texturedPolygon = viewer.entities.add({
  name:
    "Extruded textured polygon with per-position heights and custom texture coordinates",
  polygon: {
    hierarchy: Cesium.Cartesian3.fromDegreesArrayHeights([
      -118.4,
      40.4,
      50000,
      -118.4,
      37,
      30000,
      -114.2,
      38.0,
      35000,
      -108.0,
      37,
      30000,
      -108.0,
      40.4,
      50000,
    ]),
    textureCoordinates: {
      positions: [
        new Cesium.Cartesian2(0, 1),
        new Cesium.Cartesian2(0, 0),
        new Cesium.Cartesian2(0.5, 0),
        new Cesium.Cartesian2(1, 0),
        new Cesium.Cartesian2(1, 1),
      ],
    },
    perPositionHeight: true,
    extrudedHeight: 1000,
    material: "../images/Cesium_Logo_Color.jpg",
  },
});