How are polygons aggregated in an aggregation process?
The polygon features to be aggregated. If this is a layer referencing a representation and shape overrides are present on the input features, the overridden shapes, not the feature shapes, will be considered in aggregation processing. The output feature class to be created.
Is the output feature layer always a polygon layer?
The output feature layer is always a polygon layer. Only polygons that contain points will be returned, and resulting polygons will be completely removed from the result layer. The input point and polygon features (left) and the resulting area features (right) from Aggregate Points are shown.
Can a polygon be a line in ArcGIS?
Barriers can be either lines or polygons, and multiple barrier feature classes can be used simultaneously. If the input feature class is a layer referencing a representation, and there are shape overrides on any of the input features, the shape overrides will be assessed in the aggregation, not the feature geometry.
Why are two square buildings not aggregated in ArcGIS?
For example, two square buildings situated diagonally apart within the aggregation distance may not be aggregated because there is no clear connection that can be made while preserving orthogonality. The nonorthogonal option will produce more organically shaped results. Use barrier features to prevent aggregation from occurring across boundaries.
How does aggregate polygons tool convert vector data to raster?
The output features preserve the distinctive orthogonal or nonorthogonal characteristics of the input features. The Aggregate Polygons tool converts vector data to raster and uses a number of raster functions to find features within the specified distance to each other and connect them.
How is area aggregation a type of generalization?
Area aggregation is a type of generalization operation ( Esri, 1996). It combines polygon features that are in close proximity to each other, including adjacent polygons. The output features preserve the distinctive orthogonal or nonorthogonal characteristics of the input features.
What can you do with points in polygon?
Let’s say you have some point data representing crime data, 311 calls, tornadoes across the nation, sales, or earthquakes around the world, and you want to explore data concentration, patterns, or trends—maybe over time or maybe using different criteria as you’d do in an exploratory analysis.