All Questions
Tagged with resampling qgis
14 questions with no upvoted or accepted answers
4
votes
0
answers
387
views
Reprojecting a population raster from LAEA to lonlat
I have a population density raster from the EEA which is based on the CORINE land cover 2000 data.
http://www.eea.europa.eu/data-and-maps/data/population-density-disaggregated-with-corine-land-cover-...
- 285
3
votes
2
answers
473
views
QGIS - Converting Vector to Raster and back to vector to resample resolution of vector data
I would like to convert my polygon data into a raster file to change the pixel resolution and then would like to convert it back to polygon data since this will allow it to be resampled to another ...
- 91
3
votes
0
answers
2k
views
Changing Raster Resolution to match other Raster in QGIS
I have a raster layer of 0.125 degree resolution and another raster layer of 0.0833 degree resolution. Both the raster layers are to be overlapped. So, I want to change the resolution of 0.0833 ...
- 319
2
votes
0
answers
74
views
Resampling while drawing rasterfiles in QGIS 3?
I can not find a solution to resample my rasterfiles in QGIS 3. With Arcmap usually I use "resample while drawing" with the method cubic or bilinear interpolation for continuous data to smooth my ...
- 21
2
votes
0
answers
232
views
Align & Sum Grids in Python
I have two grids.
One, call it A, is 4320x2160 cells and spans the whole globe.
The other, call it B is 8640x3432 and spans the circumference of the globe, but is clipped toward mid-latitudes.
Both ...
- 1,831
1
vote
0
answers
145
views
Anti-alias raster layer by upscaling/ resampling
Recently, I performed a VGA analysis using Depthmap X. I moved the date over using a Mapinfo file (vector) and rasterised the values to the associated pixelsize. The analysis was conducted at a 2m ...
- 361
1
vote
0
answers
885
views
Build VRT to merge overlapping rasters always takes max values?
I'm attempting to merge two overlapping rasters from the same source with the same resolution. I would like the overlapping pixels to take the average value of the two overlapping pixels. When I ...
- 717
1
vote
0
answers
84
views
Using RasterResampling with PyQGIS
I have a Python application and it uses PyQGIS to - read NetCDF file, convert it to GeoTIFF by writing the rasterlayer with rasterpipe, QgsRasterFileWriter and rasterShader related methods.
However, ...
- 11
1
vote
0
answers
256
views
GDAL cubic oversampling problem
I am trying to oversample a part of a big GeoTIFF DEM to display it as a hillshade. I'm doing the process in 3 steps:
extract a part of my GeoTIFF
oversample that part
generate the hillshade with ...
- 604
1
vote
0
answers
137
views
matching up cells in 2 raster layers
I've been trying to get 2 raster layers to match up, so the cells are in the same locations for both layers (they have the same resolution already). But I can't seem to figure it out, already tried ...
- 11
0
votes
0
answers
114
views
How do I resample a raster layer over another layer in QGIS 3.x?
I have 2 raster layers (the full same area):
Layer 1: 30 m resolution, coordinate system is EPSG:32643, layer size is 7406x6801;
Layer 2: 10 m resolution, coordinate system is WGS 84, layer size is ...
- 65
0
votes
0
answers
67
views
Downsample large raster without reprojecting first
How can I downsample a large TIFF (raster) which is projected in decimal degrees without first having to reproject it to meters. I know that in meters the resolution is 3cm and I want to downsample to ...
- 635
0
votes
0
answers
307
views
Resampling for cellsize when exporting raster to GeoTIFF - GM
I used Global Mapper v20.0 for exporting the raster image GeoTIFF (32bit, from cellsize x= 0.008333333333000000898 arcdegree, y= 0.008333333332999999163 arcdegree) to cellsize x= 0....
- 1
0
votes
0
answers
723
views
Resampling raster with rectangular pixels
I have a raster file of deforestation but the pixeles are not square. When I project the raster the information of it says that the pixel size is 0.000275322,-0.000271395. I would like to resample the ...
