3. Integrated analysis of spatial and attribute data - RTC, Regional ...
3. Integrated analysis of spatial and attribute data - RTC, Regional ...
3. Integrated analysis of spatial and attribute data - RTC, Regional ...
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<strong>3.</strong> <strong>Integrated</strong> <strong>analysis</strong> <strong>of</strong> <strong>spatial</strong> <strong>and</strong> <strong>attribute</strong> <strong>data</strong>Overlay Operation‣Overlay <strong>analysis</strong> is a technique <strong>of</strong> deriving new information from two or morelayers <strong>of</strong> <strong>data</strong> covering the same area‣Overlay operations are usually performed more efficiently in raster basedsystems.‣Overlay operations include:‣ Arithmetic overlay‣ Logical overlay66