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Results tagged with raster
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user 25130
Raster is a data format consisting of regular grids of values, usually stored in an image-like format.
2
votes
0
answers
192
views
Why does r.series produce incorrect results when aggregating?
How I set up r.series:
The 7 different rasters I'm aggregating looks like this:
And the aggregated results looks like this:
And as you can see above, the aggregated raster is definitely not …
- 637
1
vote
1
answer
117
views
Query 200-300 viewshed rasters from a vector layer with z-values with QGIS
What I got:
200-300 invisibility depth viewshed rasters with information about how tall buildings can be without being visible from the viewshed points
A vector layer with a planned building as a po …
- 637
0
votes
1
answer
464
views
PostGIS intersect query: Raster footprints of multiple high resolution GeoTIFF's or not? [closed]
Since then I've been trying to understand what a raster footprint is, but I'm not sure I've figured it out yet:
I've tried to Polygonize a raster with QGIS (Raster>Conversion>Polygonize) which worked … So I'm guessing this approach is even worse then uploading the raster straight to PostGIS with raster2pgsql? …
- 637
4
votes
1
answer
168
views
Visualize challenge: show origin of aggregated minimum r.series job
This is a working product that fills it's purpose, BUT:
My question is if it's possible to create a compliment map that doesn't care about the actual raster values but rather visualizes the origin of … Or put in other words: can I style the raster so that values extracted from raster1.tif gets one color and values from raster2.tif another color? …
- 637
1
vote
0
answers
36
views
How to merge elevation from a raster image onto a shape road network with QGIS? [duplicate]
I have a shape file with Stockholms road network and a raster image with elevation data from the same area. …
- 637