POLYPOINT

 

Create a point coverage from a polygon coverage.  A point is created at the centroid of each polygon.

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POLYPOINT <in_poly_cover> <out_point_cover> {out_poly_cover} {max_perimeter}

 

ARGUMENTS

 

<in_poly_cover> - the input polygon coverage from which a point coverage is to be created.

 

<out_point_cover> - the name for the output point coverage.

 

A point is created at the centroid of each polygon in the <in_poly_cover>, unless the perimeter of the polygon is greater than the {max_perimter}.

 

{out_poly_cover} - the name for the output polygon coverage.

 

This coverage contains all of the polygons from the <in_poly_cover> that have a perimeter greater than the {max_perimeter}.

 

If no {out_poly_cover} is specified, then no {out_poly_cover} is created.

 

{max_perimeter} - the maximum perimeter of polygons from which points are to be created.

 

If no {max_perimeter} is specified, then a point is created from each polygon.

 

Polygons that have a perimeter greater than the {max_perimeter} will saved in the {out_poly_cover}.

 

 

NOTES

 

POLYPOINT runs from the ARC module of ArcInfo.

 

 

EXAMPLES

 

Arc: &run polypoint usage

Usage: POLYPOINT <in_poly_cover> <out_point_cover> {out_poly_cover} {max_perimeter}

 

1)  To create points from all of the buildings in a polygon coverage of buildings:

 

Arc: &run polypoint bldg_poly bldg_pt

 

2)  To create points from only small buildings in a polygon coverage of buildings:

 

Arc: &run polypoint bldg_poly bldg_pt bigbldg_poly 200