3DTiles are colorized by kml datasource

CesiumJS
1

Hi everyone,
I am working on a project where I have used cesiumjs. I can render 3dtiles from cesium ion in the cesium viewer easily. But If I render the kml file from cesium ion, the 3dtiles and osm buildings are colorized by kml color.

Before rendering kml file

image
image1263×528 96.3 KB

After rendering kml file
image
image1290×531 44.3 KB

I have used clampToGround:true for kml file. But still, the issue exists.
Is it possible to render kml file under 3dtiles and osm buildings?

Can anyone help me?

Thanks in advance.

2

Hi there,

clampToGround: true is the default for KML. Have you tried clampToGround: false?

3

Hello,
Thanks for your response.
Yes, I have also tried clampToGround: false. But It did not solve the issue.
Still, the 3dtiles and osm buildings are colorized by kml.

4

Thanks for checking.

What you’re looking for is to set the Classification type to TERRAIN so you are not colorizing any 3D tilesets.

I don’t think I see a top level KML option to change this, but you can iterate through the data source entities and set the classification types:

const dataSource = await Cesium.KmlDataSource.load(/*... */);
for (const entity of dataSource.entities.values) {
    if (Cesium.defined(entity.polygon)) {
        entity.polygon.classificationType = Cesium.ClassificationType.TERRAIN;
    }

    // Any other entity geometries...
}
5

Hi,
Classification type to
TERRAIN solved the issue.

Thank you @Gabby_Getz for your help.