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Split .shp file?

Simtech

Simtech

Messages
25
Country
ireland
So I've been trying to get autogen trees created for the payware photoscenery that I have. I've got the OSM data and Split Vector Layer with QGIS to isolate the natural_type__forest.shp file from the natural.shp file.
Then I run ScenProc using the following;

IMPORTOGR|F:\photoscen\Split\natural_type__forest.shp|*|*|NOREPROJ
#
SPLITGRID|AGN
#
CREATEAGNPOLYVEG|FTYPE=POLYGON;type=forest|{e8b937fd-a1f2-4bd5-8548-2c80d30102af}
#
EXPORTBGL|FSX|AutoGIre|F:\photoscen\AGN

ScenProc starts processing but crashes inexplicably having to be closed after 15 minutes or so. My working assumption was that the .shp file input was too large, is that likely? It covers the whole of Ireland. So I'm trying to split the original into smaller sections, how might I do so with QGIS? I tried loading the natural_type__forest.shp and Vector > Research Tools > Vector grid which produces a grid and then loading that .shp file on top of the original. Am I going in the right direction and what do I then do if so?
 
Hi,

What's the error you get when scenproc stops working? Is it an out of memory error.

Also how big is the shapefile? If I remember correctly up to around 300 mb should be OK.

If you can preprocess the data by cutting it in chunks that will help.

Btw, last command should be EXPORTAGN not EXPORTBGL.
 
Aha

Thanks again Arno! That explains the likely answer for the next question I had.
Firstly the forests .shp file is less than 8MB now that I look at it so that's not it. There was no indication of any kind to tell me what happened, it just crashed.
The program scenProc.exe version 1.0.0.0 stopped interacting with Windows and was closed. To see if more information about the problem is available, check the problem history in the Action Center control panel.
Process ID: 5734
Start Time: 01cf1531ef708147
Termination Time: 0
Application Path: C:\Users\Matthew\Desktop\scenproc_latest_development_release_x64\scenProc.exe
Report Id: cbbf5540-8138-11e3-a1f4-bc5ff4367fb1
failures.jpg

I have 8Gigs of RAM with an i5 at 4.4G Boost
Secondly, I ran ScenProc for a .shp file containing houses and it ran to what was reported as a successful conclusion but produced no .bgl, I will do it again with the EXPORTAGN command instead. I don't know if any of the above is helpful :o
 
Hi,

Less than 8 mb doesn't really sound big. That should work fine. But if it covers the whole of Ireland doing the SPLITGRID step will take quite some time. But it shouldn't hang on that.

Unfortunately the error message doesn't give me a clue what went wrong. So I'm afraid I don't have other tips for now.
 
new release

Fortunately the latest release and using the EXPORTAGN command worked a treat for the forest, on to the buildings now. ;)
 
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