Which statements do explain GIS data models correctly? Line smoothing is commonl
ID: 235331 • Letter: W
Question
Which statements do explain GIS data models correctly?
Line smoothing is commonly applied after a raster to vector conversion of line features.
Raster datasets usually employ a one-to-one relationship between cells in a data layer and rows in the associated attribute tables.
Topological relationships are unchanged by many forms of spatial warping or transformation.
Topological data layers often ease processing, at the cost of more complex data structures
A.Line smoothing is commonly applied after a raster to vector conversion of line features.
B.Raster datasets usually employ a one-to-one relationship between cells in a data layer and rows in the associated attribute tables.
C.Topological relationships are unchanged by many forms of spatial warping or transformation.
D.Topological data layers often ease processing, at the cost of more complex data structures
Explanation / Answer
answer- GIS data model describe correctly Option B that Raster data sets usually employ a one to one relation between the cell in a data layer and rows associated attrabute table. Raster dataset is composed of rectangular array of regularly spaced squared shaped grid cell. It represnts the continious data the example of raster data set model are following
elevation
reflectance of electromagnetic spectrum
soil ph and water salinity etc.
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