point-in-polygon : A spatial operation in which points from one coverage are overlaid with a polygonal coverage to determine which points fall within the polygon boundaries. Points assume the attributes of the polygons within which they fall.
Point-in-polygon selection Point-in-polygon selection is used to identify point features from one layer which are located within selected polygons of another layer. The point layer is the target, while the polygon layer is the selector.
Point-in-Polygon and Line-In-Polygon Point-in-Polygon is a topological overlay procedure which determines the spatial coincidence of points and polygons. Points are assigned the attributes of the polygons within which they fall.
point-in-polygon A topological overlay procedure which determines the spatial coincidence of points and polygons. Points are assigned the attributes of the polygons within which they fall. point event See event.
Point-in-polygon and line-in-polygon operations are fundamental neighborhood process for vector-based GISs (Aronoff 1989). A point-in-polygon function is used to determine which features (as defined by polygons) cover a specific point.
point-in-polygon overlay A spatial operation in which points from one feature dataset are overlaid on the polygons of another to determine which points are contained within the polygons. point-on-line overlay ...
5) Point-in-polygon: Find area from vector map ar for each point from vector map pnt in which the individual point falls into and write the related area categories to column areacat into attribute table attached to vector map pnt: ...
It is also possible to compare the locations of point features with given polygon features to execute a point-in-polygon query so that the results can be used for quadrat analysis, another spatial analytical technique to analyze point pattern.
This is accomplished by comparing the latitude and longitude to other GIS spatial layers, using a point-in-polygon operation.
In addition to combining multiple "layers" of polygon-type data, the map overlay function also permits the combination of point data with area data (point-in-polygon).
point-in-polygon p. 116 procedure to determine which points fall into which polygons; can attach attributes to either the points or the polygons. polygon p.
Geometric calculations such as containment (point-in-polygon), adjacency, boundary, and network tracking are computationally intensive.
See also: Polygon, Feature, Map, Information, Coordinate
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