Raster Analysis
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Last updated 2:13 PM on 12/9/22
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12 Terms
1
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Cost distance
Calculate the least accumulative cost path from source cell to target cell
2
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Raster overlay
Allowing us to combine several grids and produce a new raster layer
3
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Raster calculator
Uses boolean and arithmetic operators to select areas of interest
4
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Raster mask
Allows selection of pixels from one grid based on pixels from another grid when we are overlaying raster data
5
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Mask grid
Must be binary (0,1)
6
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Local functions
Works on a cell in a single location
7
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Focal functions
Work on cell locations within a neighbourhood
8
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Zonal functions
Work on cell locations within zones
9
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Global functions
Work on all cells within the raster
10
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Application function
Those that preform a specific applications (i.e. hydrologic analysis function)
11
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Raster to vector conversion
All neighboring cells are connected to each other to determine line or polygon limits with points becoming the centre
12
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Vector to raster conversion
The value of each cell is based on the value of one selected field (error prone)
