--- title: geomagic tags: geo --- ## Geotransform Geotransforms, Affine: https://www.perrygeo.com/python-affine-transforms.html Affine(pxwidth,rowrotation,upperleftcornerxcoord,columnrotation,pxheight,upperleftcornerycoord) :lightning_cloud: GDAL geotransform has different order ```python x = mf.transform #moving the image one pixel to the right x = Affine(x[0],x[1],x[2]+x[0],x[3],x[4],x[5]) #moving the image one pixel to the bottom x = Affine(x[0],x[1],x[2],x[3],x[4],x[5]-x[4]) # can then be used like mf.transform, eg in writing file with rasterio ``` ## MODIS https://moonbooks.org/Articles/How-to-read-a-MODIS-HDF-file-using-python-/Edit/ Filename: MOD13Q1.A2021033.h19v02.006.2021049224546.hdf AYYYMMDD : start date of 16 day product