On Wed, 6 Oct 2021 at 16:35, Peter Friess <pk.fri...@t-online.de> wrote:
> Hi Ian > > My points have a dimension of 3, see below, or let me repeat here: > > gf.createPoint(new Coordinate(enh.getX(), enh.getY(), enh.getZ() > > My points have X,Y,Z. The problem is that the CRS returns 2 as dimension, > which is correct > No that is the problem - your points have a dimension of 3 so you should not pass in 2 here. You could try calling `org.geotools.geometry.jts.LiteCoordinateSequence.guessDimension(Coordinate...)` which should return 3 for your data. > , but in PackedCoordinateSequence it does this check (dimension - > measures < 2) and this measures is 1. measures comes from my Point which > contains XYZ (I checked in the debugger) when it gets converted to > CoordinateSequence and this CoordinateSequence returns the 1 for the measures > (cs.getMeasures()). > > I have no clue what that measures means and why it is 1. I also do not > understand why it is necessary to involve a CRS to get a dimension if a > Point gets (just) cloned. > measures are the M of a POINTMZ or POINTM (so yet another dimension to the coordinate) - you should get 3-1 = 2 (x,y) and all should be well. Yes, it is a show stopper. What I want to try is, use jts-1.11 instead of > jts-1.18. Not sure if that is compatible with Geotools 25.2. It is also not > clear to me, who is responsible for jts. Is it the Geotools team, or some > other team. > It looks like it is a geotools problem, so as a first step raise an issue ( https://osgeo-org.atlassian.net/jira/software/c/projects/GEOT) preferably with a test case. Then either wait for a fix to come, or implement a fix or incentivise someone to care about it for you. Ian -- Ian Turton
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