network profile
| bio | website | |
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| location | ||
| age | ||
| visits | member for | 9 months |
| seen | 2 days ago | |
| stats | profile views | 10 |
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2d |
comment |
Get pixel value from a raster in a xy table This is perfect, just one simple tool that does my job. Too much data to work with tables though, I will choose only some samples and extend to the whole image only when I'll have to (using powerful computers). Many thanks to You and to all the answers/comments, it was really helpful! |
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2d |
accepted | Get pixel value from a raster in a xy table |
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2d |
comment |
Get pixel value from a raster in a xy table You're totally right, now I figured it out. I will limit my quest as to include only those parts I'm interested into and then extract those as to (huggely) limit the space requirements. At least I found many ways to extract waht I wanted from the community's suggestions. |
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May 22 |
comment |
Get pixel value from a raster in a xy table Hi. It looks like what I was looking for, but it seems failing all the time due to an "unknown" error (it's not a typical one, seems like a sort of crash). I'm using the same raster as for the input to specify the location, don't know if this could cause the problem. I'm talking about an entire Landsat scene, which means 7000 and more raws and 7000 and more columns, therefore my laptop consistently slows down its performances when trying to execute the function. Not the first time I'm working on these kind of data though... |
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May 22 |
asked | Get pixel value from a raster in a xy table |
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Apr 29 |
awarded | Caucus |
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Mar 27 |
comment |
Display raster outlines I tried it, but it creates a raster with many colours and only for the outlines, with no colours filling the polygons. What I need is something like a polygon to raster function which would preserve the outlines of the shapefile as well. |
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Mar 27 |
asked | Display raster outlines |
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Mar 22 |
comment |
How can I Setup Python to recognize QGIS I managed like I show in another question. You'll just have to edit the shell-launcher a bit as to fit your OS.gis.stackexchange.com/questions/53855/… |
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Mar 11 |
accepted | Personal shell launcher for PyQGIS |
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Mar 8 |
answered | Personal shell launcher for PyQGIS |
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Mar 8 |
revised |
Personal shell launcher for PyQGIS added 1122 characters in body |
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Mar 8 |
asked | Personal shell launcher for PyQGIS |
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Feb 6 |
accepted | assign and move centroids to their polygons |
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Feb 6 |
comment |
assign and move centroids to their polygons It worked perfectly!!! I imagine the coordinates are written according to the coordinate system of the layer and that if I want to have the points I need to create a shp with those coordinates, right? If You were here I would offer You 3 beers at least! Thank You so much for Your efforts!!! |
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Feb 6 |
comment |
assign and move centroids to their polygons still not getting it working. The command seems to do something, but my AttTab still remains the same (namely "NULL"values in the column "Point") and no points are created (if they are supposed to be). I tried typing both "setIDPoint ("Point")", and "setIDPoint ("reprPoint"), but nothing, any clue? |
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Feb 5 |
comment |
assign and move centroids to their polygons I just miss one thing. It seems now I'm defining a function (or a class) by typing "def", but then when I end in writing the script it doesn't happen anything. How can I finally have the result in my table? |
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Feb 5 |
comment |
assign and move centroids to their polygons one thing I didn't get about it is what do you mean with "it has to be string type, and it should be long enough (30 characters)". Is this library working directly on polygon shpfiles? If so, am I supposed to create a new string type field in the Att Tab with 30 charachters at least, and this would be the one to be updated? |
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Feb 5 |
comment |
assign and move centroids to their polygons I'm trying to test it, seems exactly what I was looking for. I'll let You know as soon as I run it! |
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Feb 5 |
comment |
assign and move centroids to their polygons it just gives me the centroid, but this could also lie outside the poligon, which I must avoid. I need to move them on the polygon they derive from, using a function like minimum distance (but I'm not interested in the distance, I want it to be moved). In another blog someone told me to use ST_PointOnSurface of PostGIS (but I'm using QGIS). |
