Opened 8 years ago

Last modified 6 years ago

#2756 new defect

ST_Extrude of M geometries looses M

Reported by: robe Owned by: colivier
Priority: low Milestone: PostGIS SFCGAL
Component: sfcgal Version: 2.1.x
Keywords: Cc:


I'm not sure if this is a bug or anything that can be done about it. At very least we should probably document the behavior that M coordinates are lost during extrude process.

SELECT ST_AsText(ST_Extrude('LINESTRING M (-10 50 1,50 -10 1)'::geometry, 20.1,20.1,20.1) );

This is one of the garden monkey tests which yields:

POLYHEDRALSURFACE Z (((-10 50 0,50 -10 0,70.1 10.1 20.1,10.1 70.1 20.1,-10 50 0)))

Change History (4)

comment:1 Changed 6 years ago by robe

Still issue with SFCGAL 1.2.0

comment:2 Changed 6 years ago by robe

Milestone: PostGIS 2.2.0PostGIS SFCGAL

comment:4 Changed 6 years ago by hmercier

Yes this is a feature :) we don't know what to do when creating a new M, so we ignore them.

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