[postgis-users] Create M for 4d Linestrings

[Paul Ramsey]

Can't just makepointm(x(),y(),z())?

On 23-Mar-06, at 5:09 AM, strk at refractions.net wrote:

> There's no function to do that.
> I guess a swapZM() would be nice to have.
> Volunteers ?
> --strk;
>
> On Thu, Mar 23, 2006 at 11:28:44AM +0100, Düster Horst wrote:
>> Hallo
>>
>> I do have a Table with MULTILINESTRINGS and Z value geometries. I  
>> forced
>> this geometries to 4d geometries with the result of all M equals  
>> to 0. Thats
>> correct. Now I want to move all Z values to M values but I can't  
>> find any
>> Postgis function to do that.
>>
>> I'll appreciate any hint.
>>
>> With best regards
>>
>> Dr. Horst Düster
>> GIS-Koordinator, Stv. Amtschef
>>
>> Kanton Solothurn
>> Amt für Geoinformation
>> Abteilung SO!GIS® Koordination
>> Rötistrasse 4
>> CH-4501 Solothurn
>>
>> Tel.: ++41 (0)32 627 25 32
>> Fax: ++41 (0)32 627 22 14
>>
>> horst.duester at bd.so.ch
>> www.sogis.so.ch
>>
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>
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