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May 14 |
accepted | Creating prepared geometries with OGR from Python |
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May 14 |
answered | Creating prepared geometries with OGR from Python |
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May 6 |
comment |
Any GIS program with GPX support and free hand selection tool? Is this just a symbology problem? What happens if you use the identify tool on the clipped raster? |
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May 2 |
comment |
Any GIS program with GPX support and free hand selection tool? KML always uses WGS84 projection. Try converting it to an ESRI Shapefile. |
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May 1 |
comment |
Any GIS program with GPX support and free hand selection tool? The projection will depend on your location. Either use a national projection (in my example I used the British National Grid EPSG:27700, as the tile was in England) or an appropriate UTM projection. In my example I used a 2000m buffer. |
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Apr 30 |
answered | Any GIS program with GPX support and free hand selection tool? |
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Apr 29 |
asked | Creating prepared geometries with OGR from Python |
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Apr 28 |
comment |
Is there a zonal statistics tool to calculate median and mode raster values for each polygon? I've managed to adapt the code from LecoS to do exactly what I need to do. I never would have though to use PIL to rasterize the features - very clever. The polygons I'm using are individual buildings and thus aren't very large, so I don't expect to hit any memory allocation issues. |
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Apr 28 |
accepted | Is there a zonal statistics tool to calculate median and mode raster values for each polygon? |
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Apr 27 |
answered | convert geotiff to simple xyz elevation file? |
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Apr 27 |
comment |
QGIS on Mac WKT import problem @johnsankey Try removing the double quotes from your CSV data. |
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Apr 27 |
awarded | Constituent |
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Apr 27 |
awarded | Caucus |
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Apr 27 |
answered | Official source for QGIS icons or banners? |
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Apr 26 |
asked | Is there a zonal statistics tool to calculate median and mode raster values for each polygon? |
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Apr 26 |
awarded | Scholar |
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Apr 26 |
accepted | Speed of editing attributes in QGIS from a Python plugin |
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Apr 26 |
awarded | Commentator |
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Apr 26 |
comment |
Speed of editing attributes in QGIS from a Python plugin @MatthiasKuhn The data is stored on a traditional, local hard disk. I tried buffering all the changes and calling dataProvider.changeAttributeValues() once at the end - this seems to fix it. I think that is the solution I was looking for. |
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Apr 23 |
comment |
Speed of editing attributes in QGIS from a Python plugin @NathanW Upon re-reading you comment: the field is an integer. |
