| writing to 2 "windows" in idl? [message #5650] |
Wed, 17 January 1996 00:00 |
cas
Messages: 2
Registered: October 1995
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Junior Member |
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Hi- I'd like to write out character strings to a gif imagee and determine
their lengths (in pixels). I can do this using xyouts and this works for
most of what I want to do. However, now I would like to find the length
of a character string BEFORE I write it out. I tried writing out
in the same color as my image to get the returned length and then writing
it out again in the color I want. This works except that I cover up some
lines on my original plot that I don't want covered. Is there a way to
write to a "fake" device instead?
The relevant parts of my code are:
tvlct,/GET,r,g,b
window, colors=223,xsize=n1,ysize=n2
etc......
device,font='-adobe-helvetica-bold-r-normal--10-100-75-75-p- 60-iso8859-1'
xyouts, x+4, y, string, /device,width=namew ,charsize=1.2,color=44
mmwidth=namew*n1
xyouts, x-mmwidth-4, y, string, /device, width=namew ,charsize=1.2,color=222
thanks.
cathy smith
cas@cdc.noaa.gov
--
cas@cdc.noaa.gov
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