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Gridlines - breaking my AGN

K

Kelvin Richardson

Resource contributor
Messages
152
Country
newzealand
Hi Arno,

So I've managed to get the vegetation autogen into my sim, looking really nice. Screenshots at bottom of page in link below.
http://nzff.org/viewtopic.php?f=9&t=25635


However, there's something happening with the tiles as you see in my attached screenshot from Annotator.

I am guessing that it may be when I split my shape files up in QGIS then as ScenProc processes them in smaller chunks, it must be sewing them back together or not writing the data at a certain distance from the edge of the tile.

I'm really hoping you may have an answer for me as it took 2 days for the processing of the shape files.

Any ideas?

Thanks in advance.

Kelvin
test1.jpg
 
Hi,

Do you also see those lines in FS itself or only in Annotator?

scenProc will split the polygons to the autogen LOD tiles. But that should normally not give gaps. Was your input data continuous as well?
 
Hi Arno,

Yes, what I see in Annotator I also see in FS.
There are strips of missing autogen.

The data is continuous, I have rechecked the location of a gap in FS with the actual data and the data shows no issues.

I split the shape files so scenproc can manage smaller chunks as any file size over ~30mb seems to stall the process infinitely.

It would be nice to have scenproc parse larger files to avoid splitting shape files, if this is the issue.

Do you think I need to overlap the tiles by an amount when splitting? Any other ideas?

If you need any files to test I can supply to you.

Love your work!

Cheers

Kelvin
 
Hi,

A 30 MB shapefile should not be a problem, I have processed bigger files.

It would be interesting to see where the gaps come from. Might be a bug in the SPLITGRID step or something went wrong when you chopped the data. If you export to SHP after you run the SPLITGRID step do you see the gaps as well then?
 
After I export to SHP and the AGN files are generated, this is when I see the gaps. I'll do a little more testing and come back to you.

Just out of curiosity, how big can the files be that scenproc can process?

Thanks
 
I should also add that I am using the development version. In addition to my question above is there a changelog for releases?
 
Not really, but scenProc will show the memory usage so that's a good indication how close you are to the limits.
 
Hi Arno,

I've done further tests. It appears I am still getting the gaps between the grids as per my previous screenshots.

This is doing my head in, do you have any possible ideas I could try?

Thanks in advance.

Oh and Merry Christmas.

Kelvin
 
Would you have a sample file I could have a look at?
 
Hi Arno

Sorry for the late response but I've been busy. So I've sacrificed time as I have decided to process the shape file on two pieces, having split between two of our islands so I'm just merging all my Agn's together now and I'll check the results. It seems like the bigger the shp file the waiting time grows exponentially but with less concern for issues due to not chopping up the shape file.
 
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