Comments (2)
hunzikp
commented on August 19, 2024
Hi Roger,
Currently, the only way to do this is to copy your raster, and then crop the copied raster. E.g.
vx_crop <- vx1$copy()
vx_crop$crop(extent(buffer_wgs84))
On a related note: Cropping prior to extraction shouldn't make a huge time difference. If it does, this might be the result of issue #22. Maybe you can speed things up by installing the development version of velox.
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rogerhyam
commented on August 19, 2024
Thanks. I installed the binary version of the package so am probably on an older version. I'll look into building from the dev version.
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Related Issues (20)
- Velox Got A Lot Lot Lot Slower? HOT 1
- Error: long vectors not supported yet: memory.c:3451
- Failed to install on Mac HOT 5
- vx$extract_points failure HOT 1
- copy VeloxRaster object
- Access cell number of extracted value? HOT 3
- Velox extract error: "Error in boostFactory$makePointGrid ... std::bad_alloc" HOT 6
- velox extract area weighted mean
- Include st. dev, min and max focal functions when applying a moving window kernel filter
- extract for lines files
- pointextract.cpp - unused input?
- GeoTIFF raster values "reasonable" with raster extract but all NA velox extract HOT 2
- Feature request: raster arithmetic!
- along = TRUE argument for extract function?
- CRAN archive notification HOT 24
- Failed trying to install in Mac HOT 3
- fatal error: 'math.h' file not found macos Catalina
- compatibility with R 4.0 HOT 3
- Unable to install package HOT 1
- Velox is still the fastest, but compatibility issues make it difficult to share HOT 1
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