Initialization Procedures
Initializes the GDL Library. You must call this procedure before any other library procedure.
Releases resources allocated from GDLINIT.
File Operation Procedures
Opens a file for spatial analysis.
Closes the file previously opened by GDLOSF.
Returns a string containing the GDL library version number.
GDL/zOS-Specific Procedures
Returns the confidence surface type based on information from a GeoStan™ match.
Generates an error surface (geo-variance region) from a match found inside the GeoStan/zOS handle.
Determines the street segment length or the length of a diagonal.
Sets properties of the gdlHandle.
Comparison Operation Procedures
Finds the nearest point or line to a given point.
Finds the next nearest feature after a successful call to GDLFN.
Determines if a binary polygon overlap has occurred and, if so, returns the polygon that is in overlap with the input polygon.
Determines if another binary polygon overlap has occurred and, if so, returns the polygon that is in overlap with the input polygon.
Determines if a percentage polygon overlap has occurred and, if so, returns the polygon and the percentage overlap with the input polygon.
Determines if another percentage polygon overlap has occurred returning the polygon and the percentage overlap with the input polygon.
Finds the first polygon that contains the input point and determines within which polygon a geocoded address is located.
Finds the next polygon that contains the input point.
Determines the minimum distance that exists between an error surface or a geocoded point and another point or line.
Determines the distance between the farthest point of the error surface and the nearest point of the feature (point, line or polygon).
Determines the Manhattan distance between two points.
Determines the straight line distance between two points.
Shape Operation Procedures
Returns properties from the shape object in the form of a long integer.
Returns properties from the shape object in the form of a string.
Creates a shape of a given type with specified coordinates.
Returns the coordinates with which a shape of a given type is created.
Deallocates any memory associated with a shape.