New answers tagged 3d
0
Assuming the LineStrings are digitized in the correct order (start point is most elevated), running
SELECT ln_id,
vtx_id,
geom
FROM (
SELECT ln.<id> AS ln_id,
dmp.path[1] AS vtx_id,
dmp.geom,
ST_Z(dmp.geom) < LAG(ST_Z(dmp.geom)) OVER(PARTITION BY ln.<id> ORDER BY dmp.path[1]) AS is_valid
FROM &...
0
You probably don't have to export the 3D view. This is just a visualisation. The source data is what you want to be looking at. Am guessing that your source data is going to be a Digital Elevation Model (DEM) or TIN. Possibly a raster gridded dataset might be suitable also.
All of this will of course depend on what Rhino can support as an input file.
The ...
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