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Results tagged with raster
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user 207614
Raster is a data format consisting of regular grids of values, usually stored in an image-like format.
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Raster misalignment when gridded
I have a shapefile (green point layer below) in which I use gdal_grid to grid it into raster and then gdalwarp to transform from the source reference system (EPSG:27700) to the destination reference system …
- 137
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Offsetting dataset to match another using QGIS
I have a raster (raster #1) which looks like so
and a second raster (raster #2) like this
What I want to achieve using QGIS is Fill in Raster #1's gaps with sensible values that have been influenced … by Raster #2
So to do so, I thought the process may be:
Offset Raster #2's z values by those of Raster #1
Use the Raster Calculator tool to then fill in the NULL/0 values of Raster #1 with the newly offset …
- 137
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Offset raster Z value with second raster
Effectively, I would like to interpolate the raster with holes in it. …
- 137
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Gridding and reprojection of raster shifting its placement
I've been using Python to get through my workflow of:
Convert input file to a shapefile
Use the shapefile to calculate extents, cell size, etc
Grid the raster using gdal_grid
Re-project the raster to … However, once reprojected, the raster seems to shift position which is confusing me. …
- 137
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Python - same GDAL command giving different results
I've been using GDAL warp to re-project a tiff I have.
On the GDAL commandline I use gdalwarp -t_srs EPSG:3857 C:/test/test_file.tif C:/test/test_file_gdal.tif
Similarly, I wanted to run this function …
- 137