geolib.py 文件源码

def clip_raster_by_shp(dem_fn, shp_fn):
    import subprocess
    #This is ok when writing to outdir, but clip_raster_by_shp.sh writes to raster dir
    #try:
    #    with open(dem_fn) as f: pass
    #except IOError as e:
    cmd = ['clip_raster_by_shp.sh', dem_fn, shp_fn]
    print(cmd)
    subprocess.call(cmd, shell=False)
    dem_clip_fn = os.path.splitext(dem_fn)[0]+'_shpclip.tif'
    dem_clip_ds = gdal.Open(dem_clip_fn, gdal.GA_ReadOnly)
    return dem_clip_ds

#Hack
#extent is xmin ymin xmax ymax