GDLFNPO - geographicdeterminationlibrary - 2024.00

Geographic Determination Library Reference for Windows and z/OS

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GeoStan Geocoding Suite
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GeoStan Geocoding Suite > Geographic Determination Library
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2024.00
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English
Product name
GeoStan Geocoding Suite
Title
Geographic Determination Library Reference for Windows and z/OS
Topic type
Reference
Copyright
2024
First publish date
1994
ft:lastEdition
2024-05-09
ft:lastPublication
2024-05-09T00:55:21.277227

Determines if another binary polygon overlap has occurred and, if so, returns the polygon that is in overlap with the input polygon.

Syntax

05 GDL-FIND-NEXT-POLYGON-OVERLAP.
      10 GDL-FNPO-HANDLE PIC S9(09) BINARY.
      10 GDL-FNPO-OUTPUT-SHAPE PIC S9(09) BINARY.
      *
      CALL "GDLFNPO"
      USING GDL-FIND-NEXT-POLYGON-OVERLAP GDL-RETURN-CODE.

Arguments

GDL-FNPO-HANDLE

The gdlFileHandle returned by GDLOSF (GDL-OSF- STATIAL-HANDLE). Input.

GDL-FNPO-OUTPUT-SHAPE

A pointer to the overlapping polygon. Output.

Return Values

GDL-OK Success
GDL-ERROR An internal error occurred
GDL-NOT-FOUND No further returns are available

Prerequisites

GDLFPO

Alternates

GDLFNPOP - If percentage overlap is required.

Notes

Following instances of this procedure, you should call GDLSF with the output polygon when you are finished using the output polygon to release system resources.