How i can set height from attribute in geojson?

VCityTeam / py3dtilers

Tilers accepting various input formats (OBJ, 3DCity databases, GeoJson, IFC) and producing 3DTiles tilesets.

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How i can set height from attribute in geojson? #178

Open jshirokov-bs opened 11 months ago

jshirokov-bs commented 11 months ago

Hi! I have some problem with py3dtilers. So, I have a geojson with ~50 objects with the attribute "h_m" (height). I tried to use this attribute in the console, but I couldn't use the attributes correctly - the objects didn't get the height according to the data. I also tried to reproject the data into cesium (coordinates, but the objects were displayed in the area of Africa, not Eastern Europe. Am I doing something wrong?

I am applying a visualization screen and a data set

building_pr.zip

LorenzoMarnat commented 11 months ago

Hello, I think this issue is linked to #135 (Py3Dtilers doesn't support degree projections as input).

Some workaround would be to:

Use a GIS software (I used QGIS) to export your GeoJSON file in EPSG:4087 proj (this prj uses meter unit)
Use this reprojected file as input in Py3DTilers and choose your output projection

Example:

geojson-tiler -i building_pr_4087.geojson -o building_pr_4978 --z 0 --crs_in EPSG:4087 --crs_out EPSG:4978

Result (in cesium):