Added details for installing Grass version

Clarified that code works only with Grass 7 or higher version

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hblanken 2017-05-03 08:23:56 +10:00 zatwierdzone przez GitHub
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Generates DEM, contour and textured relief maps.
## Requirements
* GRASS
* Compile and install GRASS 7 version or higher, https://grasswiki.osgeo.org/wiki/Compile_and_Install
* Environment variables:
* PYTHONHOME set to the location of Python
* PYTHONPATH set to the location of GRASS Python libs
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## Usage
python odm_grass.py <project-path>
Output is `<project-path>/odm_georeferencing/odm_dem.tif`, `<project-path>/odm_georeferencing/odm_contour.shp` and `<project-path>/odm_orthophoto/odm_relief.tif`.
Output is `<project-path>/odm_georeferencing/odm_dem.tif`, `<project-path>/odm_georeferencing/odm_contour.shp` and `<project-path>/odm_orthophoto/odm_relief.tif`.