Contents
- 1 What are the features of simplifying polygon in ArcGIS?
- 2 When do you need a topology rule in ArcGIS?
- 3 Is the output polygon feature class topologically correct?
- 4 Where are collapsed zero area polygons stored in ArcGIS?
- 5 How does the bend simplify algorithm in ArcGIS work?
- 6 How does the simplify line or polygon tool work?
What are the features of simplifying polygon in ArcGIS?
The tool produces two output feature classes, a polygon feature class to store the simplified polygons and a point feature class to store points that represent any polygons that were collapsed to zero-area. The point output name and location is automatically derived from the output polygon name with a _Pnt suffix.
When do you need a topology rule in ArcGIS?
This rule is useful when modeling areas that are subsets of a larger surrounding area, such as management units within forests or blocks within block groups. Requires that boundaries of polygon features must be covered by lines in another feature class.
What are the rules for polygons in geodatabase?
Requires that a polygon in one feature class contain at least one point from another feature class. Points must be within the polygon, not on the boundary. This is useful when every polygon should have at least one associated point, such as when parcels must have an address point.
Is the output polygon feature class topologically correct?
The output polygon feature class is topologically correct. Any topological errors in the input data are flagged in the output polygon feature class. The output feature class includes two additional fields, InPoly_FID and SimPgnFlag, that contain the input feature IDs and topological errors or discrepancies of the input, respectively.
Where are collapsed zero area polygons stored in ArcGIS?
KEEP_COLLAPSED_POINTS —Specifies to keep the collapsed zero-area polygons as points. The endpoints of the collapsed polygon boundaries will be stored in a point feature class at the output feature class location, taking the name of the output feature class plus a suffix _Pnt.
Which is the best way to simplify a polygon?
BEND_SIMPLIFY —Keeps the main shape of a polygon and removes extraneous bends in the boundary. The tolerance that determines the degree of simplification. A tolerance must be specified, and it must be greater than zero. You can choose a preferred unit; the default is the feature unit.
How does the bend simplify algorithm in ArcGIS work?
The BEND_SIMPLIFY algorithm works by identifying and eliminating relatively insignificant bends to simplify data for display at smaller scales. It is typically more faithful to the input geometry than the POINT_REMOVE algorithm but can take more time to process.
How does the simplify line or polygon tool work?
In the Simplify Line Or Polygon tool, the POINT_REMOVE and BEND_SIMPLIFY operators simplify both linear features and non-orthogonal polygon boundaries. POINT_REMOVE applies a published algorithm (Douglas and Peucker, 1973) with enhancements.
Which is the fastest algorithm for simplifying a polygon?
This tool employs different simplification algorithms for different purposes: The POINT_REMOVE algorithm works by identifying and removing relatively redundant vertices to simplify data for display at smaller scales. It is the fastest of the simplification algorithms in this tool.