algorithm - gis polygon map overlay intersection operation -



algorithm - gis polygon map overlay intersection operation -

there many algorithms binary map overlay operation in vector info format take 2 layers of map , produce resultant layer i.e overlaid layer output. wondering whether there algorithms take more 2 layers 3 layers simultaneously , produce overlay result?

there variety of geographic computational overlay procedures available multiple layers. these fall grouping of multiple criteria decision analysis, whereby multiple criteria (map)layers standardized , combined (overlayed) produce resulting (map)layer. however, many of these raster info inputs!

if in fact want combine vector info produce intersection, procedural model work best @thomas has commented. can done vis vis python (standalone) or model builder within arcgis. alas, there other methods can used script procedural overlay process.

i think you're aiming do. let's think next scenarios:

you have vector polygon of city, , goal overlay industrial, residential , commercial land usage. leave subtract different land uses city polygon, 1 one. or, can merge 3 land uses 1 poylgon , subtract city polygon.

given wide range of multiple criteria decision analysis methodologies (eg. weighted linear combination), raster methodology might suitable if you're looking "optimal location" instance, if looking location in city has optimal combination of industrial, commercial , retail land use, weighted linear combination used.

let define our land utilize weights 20%, 40%, 40% (industrial, commercial, retail). must standardize our land utilize layer values between 0 , 1. next combination of layer values give optimal combination of 3 criteria: 0.2, 0.4 , 0.4 = 1.

algorithm overlay gis computational-geometry

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