June 2017
Beginner
428 pages
10h 2m
English
Content preview from Practical GIS
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Multi-criteria evaluation
As we need to analyze the suitability of an area based on some preferences, we are basically doing an MCDA (Multi-criteria decision analysis). MCDA, in GIS, is generally done with raster data, and the final map shows the suitability of every cell in the study area. We can use MCDA for different purposes, like analyzing the suitability of the land for a specific species, or choosing the right site for a building with quantitative needs. During the process, we have to create raster maps for every criteria, then calculate the final suitability based on them. For this task, we differentiate between these two kinds of data:
- Constraint: Binary raster maps having cells with the value of zero (not suitable for the task), ...
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