New answers tagged color
Using my base raster: base<- raster("test.tif") plot(base) I got: For your breakpoints: breakpoints<-c(0,5,10,15,20,25) plot(base, col=terrain.colors(6), breaks=breakpoints) With help(plot), raster option, you can see examples of other descriptions for this R command. Another plot option: plot(base, col=colorRampPalette(c("red", "orange", ...
Use a Categorized style on the layer.
In QGIS 2.8.1 version, Right click on the layer. Go to Layer Properties. Clcik Styles Tab. Select drop down value Categorized. Use Random colors from Color Ramp drop down list.
searching for a solution for colour gradient based SLD for polygons I found this: http://docs.geoserver.org/latest/en/user/styling/sld-tipstricks/transformation-func.html - here interesting: "Interpolate" transforms a continuous-valued attribute into another continuous range of values. Geoserver provides already a solution but it is not called something with ...
You are almost there. You need this: cat = QgsRendererCategoryV2(1, symbol, "1") renderer.addCategory(cat) A full example renderer = QgsCategorizedSymbolRendererV2("id") active_layer.setRendererV2(renderer) symbol = QgsSymbolV2.defaultSymbol(active_layer.geometryType()) symbol.setColor(QColor(Qt.red)) cat = QgsRendererCategoryV2(1, symbol, "1") ...
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