On Wed, 6 Oct 2021 at 17:03, Peter Friess <pk.fri...@t-online.de> wrote:

> Sorry Ian,
>
> I don't get it. I create a Coordinate and pass 3 values: 
> enh.getX(),enh.getY(),
> enh.getZ(). Why are you telling me I pass 2? I also stated I check in the
> debugger the Coordinate has x, y, and z.
>

> The problem is that the CRS returns 2 as dimension, which is correct

This is the problem!!! You should be passing in *3* then the check would
pass! At no point did I suggest you passed in two.

Please produce a small test case so we can all see what is happening.

Ian

> Peter
>
>
> Am 06.10.2021 um 17:52 schrieb Ian Turton:
>
>
>
> 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
>
>

-- 
Ian Turton
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