Hello, I've been trying to figure out how to draw grids and lines from numpy arrays without driving to a raster/vector file first. I tried using the gdal 'MEM' driver to make a gdal Dataset from a numpy array and pass that in as a QgsRasterLayer, I get the following:
>>> memobj <osgeo.gdal.Dataset; proxy of <Swig Object of type 'GDALDatasetShadow *' at 0x0000019B3131AC30> > >>> QgsRasterLayer(memobj, 'testlayer', 'gdal') Traceback (most recent call last): File "<input>", line 1, in <module> TypeError: QgsRasterLayer(): arguments did not match any overloaded call: overload 1: too many arguments overload 2: argument 1 has unexpected type 'Dataset' The only other approach that I could find was: https://gis.stackexchange.com/questions/201804/how-to-create-raster-layer-directly-from-numpy-array-in-qgis-without-saving-to but I suspect that the return from the processing.run command is probably a temp file, so it is still going to file. Is there not a way to generate a raster layer from a numpy array without writing to file first? Thanks, Eric -- Eric Younkin Physical Scientist NOAA OCS, Hydrographic Systems and Technology Branch 1315 East-West Highway N/CS11, Room 6604 Silver Spring, MD 20910 Office: 240-847-8208 Cell: 828-331-8197
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