https://github.com/ozak/gis-raster-tools

Python module provides a fast and flexible tool to work with GIS raster files.
https://github.com/ozak/gis-raster-tools

Last synced: 20 days ago
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Python module provides a fast and flexible tool to work with GIS raster files.

• Host: GitHub
• URL: https://github.com/ozak/gis-raster-tools
• Owner: ozak
• License: gpl-3.0
• Created: 2014-12-01T03:06:15.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2014-12-01T03:41:18.000Z (about 10 years ago)
• Last Synced: 2024-12-27T16:02:19.143Z (29 days ago)
• Language: Python
• Size: 141 KB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE.txt

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README

        
gisrastertools

===========

The ``gisrastertools`` is a python module that provides a fast and flexible

tool to work with GIS raster files. It includes tools to 

- Given a point (lat,lon) find its location in a raster

- Aggregate rasters to lower resolutions

- Align two rasters of different sizes to common area and size

- Get all the geographical information of raster

- Create GeoTiff files easily

- Load GeoTiff files as masked numpy rasters

Install

-------

.. code-block:: python

    

    pip install gisrastertools

   

Example Usage

-------------

.. code-block:: python

    

    from gisrastertools import *

    # Get info on raster

    NDV, xsize, ysize, GeoT, Projection, DataType = get_geo_info(raster)

    

    # Load raster

    data = load_tiff(raster)

       

    # Find location of point (x,y) on raster, e.g. to extract info at that location

    col, row = map_pixel(x,y,GeoT[1],GeoT[-1], GeoT[0],GeoT[3])

    value = data[row,col]

    

    # Agregate raster by summing over cells in order to increase pixel size by e.g. 10

    aggregate(data,NDV,(10,10))

    

    # Align two rasters

    data2 = load_tiff(raster2)

    (alignedraster_o, alignedraster_a, GeoT_a) = align_rasters(raster, raster2, how=np.mean)