| Advancing !p.multi after drawing a map [message #84064] |
Thu, 25 April 2013 12:18 |
Andy Sayer
Messages: 127
Registered: February 2009
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Senior Member |
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Hi all,
I'm not sure whether I am overlooking something obvious or not...
Suppose I want to set up a window containing 2x2 plots in it. I might do this:
window,0
!p.multi=[0,2,2]
The first element of !p.multi has the number of remaining plots for the window. So, if I type this 4 times:
print,!p.multi[0] & plot,findgen(3) & print,!p.multi[0] & print,' '
then I get as output:
0
3
3
2
2
1
1
0
and a line is plotted each time (in each of the four corners of the screen, starting from top left).
However, if I do this instead four times (to draw a box from a map):
print,!p.multi[0] & map_set & print,!p.multi[0] & print,' '
Then I get
0
3
3
3
3
3
3
3
i.e. !p.multi[0] is not advancing, and the map boxes are plotted directly over one another. Same behaviour if I add a map_continents command in there, too. If I try to force it to advance, it starts to, but then stops, e.g. using this four times:
print,!p.multi[0] & map_set & print,!p.multi[0] & !p.multi[0]=!p.multi[0]-1 & print,' '
0
3
2
3
2
3
2
3
... does anyone know what I'm doing wrong? I just want, when I draw a map on the screen, !p.multi=[0] to advance in recognition of the fact I've made a plot in the window.
Thanks,
Andy
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