CGMAP_SET
Provides a modified MAP_SET command that can work together with other Coyote Graphics
commands and be used in resizeable graphics windows. Any keyword appropriate for MAP_SET,
MAP_CONTINENTS, or MAP_GRID can be used with this routine. Additional or modified
keywords are documented.
Categories
Graphics, Map Projections
Params
p0lat: in, optional, type=float
The center latitude of the map projection.
p0lon: in, optional, type=float
The center longitude of the map projection.
rot: in, optional, type=float, default=0.0
The angle through which the map projection should be rotated. Positve
values are in a clockwise direction.
Keywords
addcmd: in, optional, type=boolean, default=0
If this keyword is set, the command is added to the resizeable graphics
window, cgWindow.
background: in, optional, type=string, default='white'
The name of the background color. Using this keyword automatically sets
the ERASE keyword to 1.
color: in, optional, type=string, default='opposite'
The name of the drawing color for the program.
erase: in, optional, type=boolean, default=0
Set this keyword if you wish to the current graphics content of the window
before drawing the map projection. The graphics display will be erased
in the background color. This is a more intuitive way to set this behavior
than to set NOERASE to 0, which does the same thing.
continents: in, optional, type=boolean, default=0
Set this keyword to display continental outlines on the map projection.
Any keyword appropriate to the IDL command Map_Continents can be used to
modify the look of the continental outlines.
erase: in, optional, type=boolean, default=0
A more intuitive way to set NOERASE=0. If ERASE is set, the display window
is erased in the BACKGROUND color.
grid: in, optional, type=boolean, default=0
Set this keyword to display a map grid on the map projection. And keyword
appropriate to the IDL command Map_Grid can be used to modify the look of the
map grid.
onimage: in, optional, type=boolean, default=0
If this keyword is set, the position of the map projection in the graphics window
is obtained from the last image displayed with cgImage. This makes it extremely
easy to display an image and immediately set up a map projection space that will
allow you to annotate the image using map locations. This keyword is ignored if
the 'Position` keyword is used.
position: in, optional, type=FltArr(4)
The normalized position of the map projection space in the graphics window.
The default is [0.075, 0.075, 0.925, 0.925]
window: in, optional, type=boolean, default=0
If this keyword is set, the command replaces any commands in a current
cgWindow or it opens a new cgWindow and adds itself to it.
Author
FANNING SOFTWARE CONSULTING::
David W. Fanning
1645 Sheely Drive
Fort Collins, CO 80526 USA
Phone: 970-221-0438
E-mail: david@idlcoyote.com
Coyote's Guide to IDL Programming: http://www.idlcoyote.com
History
Written by David W. Fanning, 7 November 2011.
Added ONIMAGE keyword to allow the position to be specified at the last
image position from cgImage. 3 March 2012. DWF.
Copyright
Copyright (c) 2011-2012, Fanning Software Consulting, Inc.