Friday, July 18, 2014

GIS Programming Module 8 - Rasters

This week involved manipulating raster files, including performing map algebra via python. The output below took two separate rasters - one displaying land cover and the other elevation - of the same region and transformed the data therein to create a new raster. From the land cover raster, three types of forest were identified and reclassified into a single class and extracted. From the elevation raster, slope and aspect manipulated such that a desired range for both were identified as '1' while all other pixels were assigned '0'. The final raster output, below, is the result of a union of all the data transformations using boolean algebra to generate it.

Forest Cover with desired slope & aspect in yellow

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