Hi,
The GDAL ogrtindex might be of good help to create an index of various
vector sources: https://gdal.org/programs/ogrtindex.html
And you can possibly "gdalmanage identify -r some_path" to find all GDAL
recognizable datasets: https://gdal.org/programs/gdalmanage.html
Even
Le 12/05/2024 à 23:41, Tony Shepherd (FarmMaps NZ) via QGIS-User a écrit :
Hi Nigel
Thank you, that works a treat, although it does fail if I try to merge
a line feature at the same time as a polygon. That is not a big deal
and can get around that.
Your comment, “Then parse these through to the merge vector layer”. I
can’t see a way of parsing the filelist.txt to the tool. I am not
experienced in using python.
Cheers
TIby
*From:*Nigel Berjak - S3 Technologies <ni...@s3.co.za>
*Sent:* Friday, May 10, 2024 6:03 PM
*To:* Nyall Dawson <nyall.daw...@gmail.com>
*Cc:* Tony Shepherd (FarmMaps NZ) <t...@farmmaps.nz>;
qgis-user@lists.osgeo.org
*Subject:* Re: [Qgis-user] Search through folders and combine SHP files
Hi
For your listing, although it would not provide the file type i.e.
point, line, polygon etc, you could simply create a DOS batch command
(dir/s *.shp > shapefilelist.txt) to locate all the file and generate
a list of their locations. Then parse these through to the merge
vector layer. If you are merging them all into a Geopackage, then file
type would not be relevant and you could then sort them once they are
in a single location. I don't think the Geopackage would have a
limitation on the number of files and records in it.
Perhaps this can assist.
---
Regards,
Nigel Berjak
S3 Technologies
Geographic Information Systems & Large Format Printing specialists
T: +27 33 3423681
F: +27 86 6721242
E: ni...@s3.co.za <mailto:ni...@s3.co.za>
Website: http://www.S3.co.za <http://www.S3.co.za>
Please consider the environment before printing this email.
On 2024-05-10 04:06, Nyall Dawson via QGIS-User wrote:
On Fri, 10 May 2024 at 09:06, Tony Shepherd (FarmMaps NZ) via
QGIS-User <qgis-user@lists.osgeo.org
<mailto:qgis-user@lists.osgeo.org>> wrote:
Hi
I have loads, literally thousands, of SHP, GPKG, TAB files
located in loads of different folders and sub-folders.
Is there a plugin that will trawl through a set of folders,
copy say just the polygons from each file into a new file, and
populate a field with say the filename and folder the
polygon(s) came from?
Essentially combining a heap of files into one with some
metadata about where the data came from?
Why? I have files from clients dating back about 20 years.
Clients sell properties. Properties get subdivided. New
clients come and see us, and often we don't realise we have
GIS info on file for that property from many years ago,
usually under a different name. It would be handy to see a
polygon on the screen and easily go back to some old GIS data.
Maybe I am missing an easy tool to do this, but I can't see
anything obvious.
You could use the "Merge Vector Layers" tool from the Processing
toolbox, that does everything you want. The trickiest bit would be
getting a master list of ALL your shapefiles/etc you want to
combine and passing this to the tool. It's not going to be easy
from the GUI itself, as that only allows you to add files from a
single folder at once.
I'd run the tool on the files from a single folder, then checkout
the processing history dialog and copy the python command which
corresponds to what you just did. You could then adapt this
command to pass a complete list of all the files you want to
combine. (It's quite straightforward in Python to build a list of
files which recursively match a file pattern -- see eg
https://stackoverflow.com/a/2186565
<https://stackoverflow.com/a/2186565>)
Hope that helps!
Nyall
Cheers
Tony
------------------------------------------------------------------------------------------------------------------
*Tony Shepherd*
/ GeoSpatial Manager @ FarmMaps NZ & Photographer @ Shepherd
Photos/
/*Phone*/*–* 027 435 6193 | /*Website*/*–
*shepherdphotos.co.nz <http://shepherdphotos.co.nz/>
/*Email*/*– Maps*t...@farmmaps.nz <mailto:t...@farmmaps.nz>|
/*Email*/*– Photos* t...@shepherdphotos.co.nz
<mailto:t...@shepherdphotos.co.nz>
/*Facebook*/TonyShepherdPhotos
<https://www.facebook.com/TonyShepherdPhotos>
FM_logo1_small (Custom)
_______________________________________________
QGIS-User mailing list
QGIS-User@lists.osgeo.org <mailto:QGIS-User@lists.osgeo.org>
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
<https://lists.osgeo.org/mailman/listinfo/qgis-user>
Unsubscribe:
https://lists.osgeo.org/mailman/listinfo/qgis-user
<https://lists.osgeo.org/mailman/listinfo/qgis-user>
_______________________________________________
QGIS-User mailing list
QGIS-User@lists.osgeo.org <mailto:QGIS-User@lists.osgeo.org>
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
<https://lists.osgeo.org/mailman/listinfo/qgis-user>
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
<https://lists.osgeo.org/mailman/listinfo/qgis-user>
_______________________________________________
QGIS-User mailing list
QGIS-User@lists.osgeo.org
List info:https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe:https://lists.osgeo.org/mailman/listinfo/qgis-user
--
http://www.spatialys.com
My software is free, but my time generally not.
_______________________________________________
QGIS-User mailing list
QGIS-User@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
