0

I have a raster file (TIF file) and want to use its extent as a mask. I need this mask to be able to extract other shape files /raster files by this mask.

How can I convert my raster file to a simple mask (shp.file) regarding only the outline of my raster file?

Improve this question
2
  • Using which software? – Spacedman Oct 4 '19 at 18:50
  • QGIS 3.6. or ArcGIS – Boing Oct 4 '19 at 20:33
1

Try converting it using the Raster To Polygon tool which:

Converts a raster dataset to polygon features.

then you can use it as a Mask.

Improve this answer
1
  • but if use the Raster to Polygon option, I have also the "information" from the raster in the new polygone file. I just need the exact shape or outline to use it as a mask. how can I do that? – Boing Oct 5 '19 at 13:59
0

In QGIS, you can use the Tile Index tool from:

Raster / Miscellaneous / Tile Index
Improve this answer
0

You can find the solution here. For my opinion the best solution is second. Work on vactor or raster layer.

Under Vector menu go to Research tools and you will find polygon from layer extent. Also under processing you will find that function.

In QGIS 3 use ctrl+k and start typing extent.

Improve this answer
2
  • in my QGIS ( 2.4.) version, on the menue "Vector" within the "research tools" I don t find the "polygon from layer extent", there are these options: select by location, create grid, extract layer extent, random points in extent, random points in layer bounds, random points inside polygons, random selection, random selection within subsets, regular points. It 's not the "random points inside polygons", isn't it? Where can I find this tool? – Boing Oct 5 '19 at 13:50
  • @Boing - If it's possible, update QGIS to newest version. – GSienko Oct 5 '19 at 20:25

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.