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Re: writing to 2 "windows" in idl? [message #5634 is a reply to message #5633]

Thu, 18 January 1996 00:00

hahn
Messages: 108
Registered: November 1993

Senior Member

cas@revelle.cdc.noaa.gov (Cathy Smith) wrote:

> 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.

XYOutS has two keyword parameters that may help:

width=lg puts the length of the text into the variable lg.
Units is normalized coordinate units.

Charsize=-1 suppresses any graphical output.

> 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 above keywords should work with any device, no need to use a fake.

[remainder deleted]

Hope this helps
Norbert Hahn

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[Message index]

		Re: writing to 2 "windows" in idl? By: Mirko Vukovic on Fri, 19 January 1996 00:00
		Re: writing to 2 "windows" in idl? By: jlaw on Thu, 18 January 1996 00:00
		Re: writing to 2 "windows" in idl? By: hahn on Thu, 18 January 1996 00:00
		Re: writing to 2 "windows" in idl? By: steinhh on Thu, 18 January 1996 00:00
		Re: writing to 2 "windows" in idl? By: Eric Deutsch on Thu, 18 January 1996 00:00

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