Timeline for Rasterizing polygons in shapefile using GDAL
Current License: CC BY-SA 4.0
16 events
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Aug 9, 2022 at 18:00 | history | tweeted | twitter.com/StackGIS/status/1557064176392183808 | ||
Aug 8, 2022 at 19:08 | history | edited | Kadir Şahbaz | CC BY-SA 4.0 |
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Aug 8, 2022 at 17:29 | answer | added | Bằng Rikimaru | timeline score: 0 | |
Nov 26, 2021 at 6:38 | history | edited | Taras♦ | CC BY-SA 4.0 |
added 269 characters in body; edited title
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Nov 26, 2021 at 3:51 | answer | added | user2856 | timeline score: 1 | |
Nov 25, 2021 at 23:25 | comment | added | LostinSpatialAnalysis | Success! This worked! Thank you! I see that the out-of-scale issue is caused by a discrepancy between degrees and lon/lat, but how did you know to choose exactly 0.0001? Sorry I have always been a bit confused between pixel size and resolution. Is 0.0001 the one "correct" size value or just the best approximation? I am just trying to understand so I know how to set the most appropriate pixel size next time. | |
Nov 25, 2021 at 19:42 | comment | added | LostinSpatialAnalysis |
Good point there. I had tried changing the burn value there to 1, but this resulted in a raster that just a black square with all 0 value. I tried your gdal.Rasterize() suggestion and it works, and produces the .tif raster like I want, but when I open the file in QGIS, it is as well just a black square, with all 0 value pixels. I tried leaving xRes and yRes blank, but that didn't work. I then tried setting them both to 100, but then the black square was far beyond the extent of the NYC polygons. I am just trying to get the output raster to match the size/extent of the input shapefile.
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Nov 24, 2021 at 23:51 | answer | added | snowman2 | timeline score: 2 | |
Nov 24, 2021 at 23:12 | history | edited | LostinSpatialAnalysis | CC BY-SA 4.0 |
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S Nov 24, 2021 at 23:10 | history | suggested | user78863 | CC BY-SA 4.0 |
Edited title for clarity.
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Nov 24, 2021 at 23:08 | review | Suggested edits | |||
S Nov 24, 2021 at 23:10 | |||||
Nov 24, 2021 at 21:48 | answer | added | user78863 | timeline score: 0 | |
Nov 24, 2021 at 21:07 | comment | added | LostinSpatialAnalysis |
Good suggestion, thanks. I used gdal.UseExceptions() and pasted the new error traceback message in my post. The error is telling my my 0x0 dataset is illegal, and I am not sure what this means, but perhaps it could be an error with my projection. I am trying to figure out what this means, or which step resulted in this problem raster.
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Nov 24, 2021 at 21:05 | history | edited | LostinSpatialAnalysis | CC BY-SA 4.0 |
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Nov 24, 2021 at 20:57 | comment | added | mikewatt | Try enabling exceptions and seeing if you get a more helpful error | |
Nov 24, 2021 at 20:47 | history | asked | LostinSpatialAnalysis | CC BY-SA 4.0 |