I have a postgis table with some data which looks like this: distance id nr X Y description strecke point gsal_strecke rikz gsal_km_anf_p gsal_km_end_p gsal_geo_compound rk kilometer basepoint ...

I have a problem in doing interactive visualization (in python). It seems that there is no API can both intercept key-events and mouse-events, so I turn to use open3d.visualization.gui to implement ev...