Installing gdal_retile?

Question

I spent the whole day trying to install GDAL binding for Python. And now it seems to work. At least this import statement now does not produce any error messages:

from osgeo import gdal

now I want to use this creature, which is supposed for creating tiles.I tried two different ways:

import gdal_retile

and

from osgeo import gdal_retile

But they do not work.

How can I use this functionality?

Answer 1

gdal_retile.py is a Python script that makes use of the GDAL Python bindings but cannot be imported as a class or function. Depending on your GDAL version (>2.0) you can import most gdal utilities (gdalwarp, gdal_translate, ...) but not the Python scripts.

You can look at the source code of gdal_retile.py and pick out the functions you want to use and import them.

Alternatively you can call it as is (a command line utility) with subprocess.

Answer 2

@Kersten is right. Create a folder with a custom library name. Copy gdal_retile.py into this folder. Within this folder, create any empty python file init.py.

mygdal
 __init__.py 
 my_gdal_retile.py

Start using this library in your code by importing it. The example below is for the simple task of generating tiles.

  from mygdal import my_gdal_retile
    from mygdal.my_gdal_retile import *
    import pandas as pd
    from osgeo import gdal
    command="gdal_retile.py  -ps 512 512 -overlap 128  \
           -targetDir  MyTiles  MyGeotiff.tif -v"    
    my_gdal_retile.main(command.split())