Reiko, You could try something like this:
1. Merge all forests into a single file (if you haven't already); 2. Create a new field in the forests table called something like "border" 3. Create lines that trace the panel boundaries, that separate the forests you want to join; 4. Buffer each of those lines by some small distance (try 1 meter); 5. For each buffer "Select by location" all features in forests that intersect buffer; 6. Use the field calculator in the table to enter a unique identifier for the selected features in the "border" field; 7. Do this for each buffer; 8. Dissolve the forest layer on the border field. Feel free to get in touch. Cheers, Mike Message: 1 Date: Wed, 6 May 2020 14:55:30 -0400 From: RMG<reikogood...@gmail.com> To:qgis-user@lists.osgeo.org Subject: [Qgis-user] combining fragmented forests Message-ID: <CALwVOrJq9njBAdtvVeXLVsVT8SEjcDfp5mp=aydooi93w3t...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" Hello, I have five shapefiles that contain thousands of fragmented forests that I created from a NDVI raster of a large protected area in West Africa, which I separated into five panels. Now, how do I stitch thousands of the fragmented forests at the borders? Each shapefile's attributes have ID, count (number of units), area, and perimeter, so I can visually recognize which fragments need stitching, but because there are so many, I don't think I can do it manually. Any help would be appreciated. Best wishes, Reiko Matsuda Goodwin Comoé Monkey Project<https://www.facebook.com/ComoeMonkeyProject/> Guenon Conservation Community <http://facebook.com/GuenonConservationCommunity/> -------------- next part -------------- An HTML attachment was scrubbed... URL:<http://lists.osgeo.org/pipermail/qgis-user/attachments/20200506/c823b462/attachment-0001.html> ------------------------------
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