man MAPUSR (3): Called by EZMAP routines that draw the various parts of the map.

SYNOPSIS

CALL MAPUSR (IPRT)

DESCRIPTION

IPRT

(input expression, of type INTEGER), if positive, says that a particular part of the map is about to be drawn, as follows:

IPRT: Part of map about to be drawn
1: Perimeter.
2: Grid.
3: Labels.
4: Limb lines.
5: Continental outlines.
6: U.S. state outlines.
7: International outlines.

If IPRT is negative, then the drawing of the last part is complete. The absolute value of IPRT will be one of the above values. Changed quantities should be restored.

USAGE

EZMAP executes the statement

: CALL MAPUSR (IPRT)

just before and just after each portion of a map is drawn. The default version of MAPUSR does nothing.

A user-supplied version of MAPUSR may set/reset the dotting parameter 'DL', the DASHCHAR dash pattern, the color index, etc., so as to achieve a desired effect.

EXAMPLES

Use the ncargex command to see the following relevant example: mpex08.

ACCESS

To use MAPUSR, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably in that order.

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