NAME¶
plmeridians - Plot latitude and longitude lines.
SYNOPSIS¶
plmeridians(
mapform,
dlong,
dlat,
minlong,
maxlong,
minlat,
maxlat)
DESCRIPTION¶
Displays latitude and longitude on the current plot. The lines are plotted in
the current color and line style.
Redacted form: General:
plmeridians(mapform, dlong, dlat, minlong, maxlong,
minlat, maxlat) F95, Java, Perl/PDL, Python: Not implemented?
This function is used in example 19.
ARGUMENTS¶
- mapform (void (*) (PLINT, PLFLT *, PLFLT *),
input)
- A user supplied function to transform the coordinate
longitudes and latitudes to a plot coordinate system. By using this
transform, we can change from a longitude, latitude coordinate to a polar
stereographic project, for example. Initially, x[0]..[n-1] are the
longitudes and y[0]..y[n-1] are the corresponding latitudes. After the
call to mapform(), x[] and y[] should be replaced by the corresponding
plot coordinates. If no transform is desired, mapform can be replaced by
NULL.
- dlong (PLFLT, input)
- The interval in degrees at which the longitude lines are to
be plotted.
- dlat (PLFLT, input)
- The interval in degrees at which the latitude lines are to
be plotted.
- minlong (PLFLT, input)
- The value of the longitude on the left side of the plot.
The value of minlong must be less than the value of maxlong, and the
quantity maxlong-minlong must be less than or equal to 360.
- maxlong (PLFLT, input)
- The value of the longitude on the right side of the
plot.
- minlat (PLFLT, input)
- The minimum latitude to be plotted on the background. One
can always use -90.0 as the boundary outside the plot window will be
automatically eliminated. However, the program will be faster if one can
reduce the size of the background plotted.
- maxlat (PLFLT, input)
- The maximum latitudes to be plotted on the background. One
can always use 90.0 as the boundary outside the plot window will be
automatically eliminated.
AUTHORS¶
Geoffrey Furnish and Maurice LeBrun wrote and maintain PLplot. This man page was
automatically generated from the DocBook source of the PLplot documentation,
maintained by Alan W. Irwin and Rafael Laboissiere.
SEE ALSO¶
PLplot documentation at
http://plplot.sourceforge.net/resources.