[Gvsig_english] problem with split geometry tool (1251)

[Wolfgang Qual]

Hello Sergio,
I am using a workaround now:
created a new polygon theme which can be used as a clip stencil for the 
river shapefile: result: river with smaller polygons.
Besides, I discovered that the grey box of the split tool is not always 
displayed. If the selection is done a second time, the grey box is 
displayed.
Anyway: great tool. Somtimes little bit moody ;)

Best,
Wolfgang


Wolfgang Qual schrieb:
> Dear Sergio,  
> yes, I have seen that grey square, too (or - to be honest, only the grey
> colour of that square). My problem is that the geometry of the river
> "ISAR" (this is the river which flows through the city of munich) is
> quite long - therefore, the bounding box is very big. I have to do some
> detailled split-operations, which are located in the middle of the huge
> bounding box. so what to do? I understand that this is somehow
> exceptional, but I would appreciate, if a solution could be found in
> future versions. Do you think that this could be done? 
> Many thanks for your reply. 
>
> Best regards
> Wolfgang
>
>
> Am Mittwoch, den 04.11.2009, 18:08 +0100 schrieb Sergio Clark:
>   
>> Hi Wolfgang,
>>
>> We've noticed a similar behaviour in some cases. I think it's necessary 
>> to cross "all" the geometry bounding box in order to split it correctly. 
>> You should see a grey square that shows those limits just after 
>> selecting the split tool. Could this be your case? (somewhere in the 
>> logfile it says "line_not_cross_rectangle").
>>
>> Regards,
>> Sergio.
>>
>>
>> Sergio Clark
>> Equipo gvSIG
>> IVER T.I., S.A.
>> www.iver.es
>> www.gvsig.com
>>
>>
>>
>> Wolfgang Qual escribió:
>>     
>>> Hi list,
>>> I would like to create a map that shows areas along a river, where 
>>> bathing is allowed and where not. My idea was
>>> 1) create a buffer theme from the river shapefile
>>> 2) use the difference-geoprocess to get only the buffer, but not the 
>>> area of the river
>>> 3) use split geometry (new edit tool) to separate several sections of 
>>> the theme generated in 2)
>>> Sometimes, the split tool worked, but obivously only for the smaller 
>>> elements. (see logfile/screenshot)
>>> It would be great, if I could use the geoprocessing as it would save 
>>> me quite some time (otherwise, I will have to digitize by hand...)
>>>
>>> Any comments are appreciated very much.
>>> Best,
>>> Wolfgang
>>>
>>>
>>> -- 
>>>
>>> 	*Wolfgang Qual
>>>
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-- 

	*Wolfgang Qual

* *Referat für Gesundheit und Umwelt*
Umweltschutz
Umweltvorsorge
RGU-UW 11

Bayerstraße 28a
80335 München

Telefon +49 - 89 - 233 - 4 77 17
Telefax +49 - 89 - 233 - 4 77 05

http://www.muenchen.de/umweltatlas
uw11.rgu at muenchen.de
Bitte beachten Sie die Hinweise zur elektronischen
Kommunikation mit der Landeshauptstadt München:
http://www.muenchen.de/ekomm

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