How Region To Polygon Coverage works

This topic applies to ArcInfo only.

Below is a region coverage REGIONCOV with one region subclass, GREEN. The subclass contains three regions; the first region consists of one polygon, the second region consists of one polygon, the third region overlaps the other two regions and is made up of two polygons. Region To Polygon Coverage creates a polygon coverage from the subclass and constructs a table listing the association between the polygons of the Output Coverage and the regions of the Input Coverage Input Subclass.

Region to Polygon Coverage illustration 1

regioncov.patgreen

Record

AREA

PERIMETER

Green#

Green-ID

1

10.946

13.268

1

1

2

5.259

9.574

2

2

3

16.205

16.685

3

3

REGIONCOV table
regionpoly_arc regioncov green polycov greentab
Region to Polygon Coverage illustration 2

polycov.pat

Record

AREA

PERIMETER

POLYCOV#

POLYCOV-ID

Green#

Green-ID

1

-16.205

16.685

1

1

0

0

2

10.946

13.268

2

1

1

1

3

5.259

9.574

3

1

2

2

polycov.pat table

greentab

Record

POLYCOV#

Green#

Green-ID

1

2

1

1

2

2

3

3

3

3

2

2

4

3

3

3

greentab table

Published 6/8/2010