polygon overlay : A process that merges spatially coincident polygons from two coverages, and their attributes, to create a third coverage, that contains new polygons and describes new relationships ...
polygon overlay A topological overlay procedure which determines the spatial coincidence of two sets of polygon features and creates a new set of polygons based on identity, intersect, or union.
polygon overlay
The process of superimposing two or more geographic polygon layers and their attributes to produce a new polygon layer.
polygon-arc topology ...
during polygon overlay, many new and smaller polygons are created, some of which may not represent true spatial variations
the small, invalid polygons are called spurious or sliver polygons and can be a major problem in polygon overlay ...
polygon overlay p. 108 a procedure that calculates the geometric relationships between two geographic representations (usually applied to vector models); used to merge attribute information . primitives p.
Containment and proximity are implemented through x,y coordinates and related spatial operations: containment is determined using the point-, line-, and polygon-on-polygon overlay spatial operation and proximity is determined by calculating the ...
(1988) used a series of GIS polygon overlays and FORTRAN programs to estimate soil erosion in Dane County, Wisconsin.
polygon-on-polygon overlay, line-on-polygon overlay, point-on-polygon overlay (figure 7.5). During the process of overlay, the attribute data associated with each feature type is merged. The resulting table will contain both the attribute data.
Buffer zone or polygon overlay queries can be performed to select features for review or reporting.
After polygon overlay if a polygon is below the size tolerance it is classified a sliver. To reconcile the situation the arcs of the data layer that has higher priority will be retained and the arcs of the other data layer will be deleted.
A second function typically supported is intersecting multiple polygon overlays to formulate composite polygon overlays and linked attribute records describing the combination of conditions present in each newly created polygon.
INTERSECTION
The point at which one line crosses another. In GIS there are a number of contexts in which this is used, for example, in polygon overlay analysis to create the intersection of two area features. Intersection of two lines.
be applied to geographic data objects within a GIS: (1) geometric models, such as calculating the Euclidean distance between objects, generating buffers, calculating areas and perimeters, and so on; (2) coincidence models, such as polygon overlay; ...
Flexible, user-definable attribute data embedding through object data
GIS spatial analysis tools such as network tracing, buffer, and polygon overlay
Data management tools to coordinate data specific to your project" ...
 See also: Overlay, Polygon, GIS, Analysis, Vector
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