NYC.zip old B3dm format ?

CesiumJS
1

1. A concise explanation of the problem you’re experiencing.

layout.png
layout.png891×491 8.29 KB

https://s3.amazonaws.com/cesiumjs/3DTiles/NewYork.zip

How is the B3DMs in NewYork.zip valid according to specs ?

**File \NewYork\1\0\1.b3dm **

Highlighted BYTE 0x14 - 0x18 should be batchTableJSONByteLength ?

Is this old format ?

2019_08_11_01_05_47_HxD_C_data_NewYork_1_0_1.b3dm_.png
2019_08_11_01_05_47_HxD_C_data_NewYork_1_0_1.b3dm_.png1879×575 314 KB

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.

1.b3dm (153 KB)

2

I haven’t looked too deeply at this tileset, but it is possible that the spec has been modified since I think it was created before 3D Tiles was an OGC community standard.

You could try uploading the source CityGML (https://www1.nyc.gov/site/doitt/initiatives/3d-building.page) to your ion account and get a new tileset from Cesium ion.