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multipolygons

A

apollon01

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163
Country
luxembourg
Hello Arno,

Does the scenProc support multipolygons?

After some troubleshooting (some forests not appearing in my scenery) I discovered, that most probably the forests with type=multipolygon are not processed by scenProc.

Can you please confirm?
Is there any workaround?

Thanks,

Milan
 
thank you for the tip

but isn't that done by default?

the manual says that you must specify not to process holes
 
no problem :-)

after some experimenting I found out that the multipolygons actually are processed

the problem must be in my conf file

I will have a closer look at conf file
 
Just a follow-up

the conf file is OK

the trouble seems to be the importogr step and in particular setting the lat lon area to process

when I used rather a narrow area around my troubled multipolygon forest, it did not appear in the scenery
when going larger and larger, it actually appeared

is it possible that setting the lat lon area to process somehow cuts the features out of processing if they stretch outside the set area?

Milan
 
i cant think of anything...
you should prob post a snippet of your script;
so it will be easier for Arno to help you when he chimes in,
 
Hello,

I can confirm what I wrote before - it seems that once the rectangle area set in the importogr step "cuts" through a multipolygon, it is not processed at all and does not appear in the scenery. The normal polygons are working just fine.

This is an issue when working with batch processes with rather high terrain LOD grids.

Regards,

Milan
 
Hi,

I would need to check, but how the position filter works is something that the OGR library does internally (same goes for handling the multipolygons btw). So I'm not sure if I can do much about it. I'll try to find some sample file to test it with.
 
Hello,

I found a workaround - I process overlapping areas to make sure that if in the first one the multipolygon does not fit in entirely and is not processed, in the second one (the overlap I use is 0.2 degrees) it fits (most probably). It seems to work OK so far. Of course, an IMPORTAGN step has to be used.

Regards,

Milan
 
Ok, it's still on the bug list to check if I can do something against it.
 
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