| Re: TEXT Function [message #76599] |
Fri, 10 June 2011 06:39 |
Kim
Messages: 19
Registered: January 2009
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Junior Member |
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On Jun 9, 5:28 pm, Gray <grayliketheco...@gmail.com> wrote:
> On Jun 9, 9:41 am, Kim <kimh...@gmail.com> wrote:
>
>> Hello,
>> I am having trouble with the TEXT function when I put multiple plots
>> on the same figure (in a FOR loop). In the following example, the
>> text is written in the same location on the first plot instead of each
>> subsequent plot. Any advice would be greatly appreciated.
>> Thank you,
>> Kim
>
>> W = WINDOW(DIMENSIONS=[1024,1024])
>> FOR N=0,3 DO BEGIN
>> Y = SIN((N+1)*FINDGEN(201)*!PI/25.0)
>> P = PLOT(Y,/CURRENT,LAYOUT=[1,4,N+1])
>> T = TEXT(0.18,0.94,'N = '+STRING(N+1),/NORMAL,TARGET=P)
>> ENDFOR
>
> The reason is that you're putting the text in with NORMAL coords set,
> so it's relative to the window. Everything is in the same window, so
> the normal coords don't change when you change plots. You'll need to
> change to DATA coords, I think, or figure out some algorithm to define
> your normal coord placement for each plot. Or do it by hand. :)
That makes sense. I thought if I specified TARGET=P that the
coordinate set would be associated with the plot and not the window.
Thank you,
Kim
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| Re: TEXT Function [message #76601 is a reply to message #76599] |
Thu, 09 June 2011 14:44  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Gray writes:
> You would use XYOUTS and not CGTEXT??
Well, in this particular instance, I had to use
PLOT and not cgPlot, so it made a little more
sense to me to use XYOUTS rather than cgText.
The "problem" with Coyote Graphics (and, I suspect,
with function graphics too, is that the "objects"
have to be self-contained to work properly. With
Coyote Graphics this means setting and then restoring
system variables, which you would like to NOT be
set back if you are going to depend on them to
position the *next* graphics command.
Fortunately, the Coyote Graphics system is flexible
enough to be able to handle these somewhat contradictory
requirements. I'm already thinking about how to
overcome these difficulties in Coyote Graphics 2.0.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thue. ("Perhaps thos speakest truth.")
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| Re: TEXT Function [message #76602 is a reply to message #76601] |
Thu, 09 June 2011 14:28 |
Gray
Messages: 253
Registered: February 2010
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Senior Member |
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On Jun 9, 9:41 am, Kim <kimh...@gmail.com> wrote:
> Hello,
> I am having trouble with the TEXT function when I put multiple plots
> on the same figure (in a FOR loop). In the following example, the
> text is written in the same location on the first plot instead of each
> subsequent plot. Any advice would be greatly appreciated.
> Thank you,
> Kim
>
> W = WINDOW(DIMENSIONS=[1024,1024])
> FOR N=0,3 DO BEGIN
> Y = SIN((N+1)*FINDGEN(201)*!PI/25.0)
> P = PLOT(Y,/CURRENT,LAYOUT=[1,4,N+1])
> T = TEXT(0.18,0.94,'N = '+STRING(N+1),/NORMAL,TARGET=P)
> ENDFOR
The reason is that you're putting the text in with NORMAL coords set,
so it's relative to the window. Everything is in the same window, so
the normal coords don't change when you change plots. You'll need to
change to DATA coords, I think, or figure out some algorithm to define
your normal coord placement for each plot. Or do it by hand. :)
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| Re: TEXT Function [message #76603 is a reply to message #76602] |
Thu, 09 June 2011 14:27 |
Gray
Messages: 253
Registered: February 2010
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Senior Member |
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On Jun 9, 11:00 am, David Fanning <n...@dfanning.com> wrote:
> Kim writes:
>
>> Hello,
>> I am having trouble with the TEXT function when I put multiple plots
>> on the same figure (in a FOR loop). In the following example, the
>> text is written in the same location on the first plot instead of each
>> subsequent plot. Any advice would be greatly appreciated.
>> Thank you,
>> Kim
>
>> W = WINDOW(DIMENSIONS=[1024,1024])
>> FOR N=0,3 DO BEGIN
>> Y = SIN((N+1)*FINDGEN(201)*!PI/25.0)
>> P = PLOT(Y,/CURRENT,LAYOUT=[1,4,N+1])
>> T = TEXT(0.18,0.94,'N = '+STRING(N+1),/NORMAL,TARGET=P)
>> ENDFOR
>
> I have no idea how to do this with function graphics.
> Here is how I would do it with Coyote Graphics.
>
> ;--------------------------------------------------------
> cgWindow, WXSize=800, WYSize=800, WMULTI=[0,1,4]
> FOR N=0,3 DO BEGIN
> Y = SIN((N+1)*FINDGEN(201)*!PI/25.0)
> cgWindow, 'Plot', y, /LOAD, COLOR=cgColor('black'), $
> BACKGROUND=cgColor('white')
> cgWindow, 'XYOUTS',!X.CRange[0]+10, !Y.CRange[1]-0.5,$
> 'N = '+STRTrim(N,2), /LOAD, COLOR=cgColor('red')
> ENDFOR
> cgWindow, /EXECUTE
> ;--------------------------------------------------------
>
> Cheers,
>
> David
>
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.dfanning.com/
> Sepore ma de ni thue. ("Perhaps thos speakest truth.")
You would use XYOUTS and not CGTEXT??
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| Re: TEXT Function [message #76607 is a reply to message #76603] |
Thu, 09 June 2011 11:00 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Kim writes:
>
> Hello,
> I am having trouble with the TEXT function when I put multiple plots
> on the same figure (in a FOR loop). In the following example, the
> text is written in the same location on the first plot instead of each
> subsequent plot. Any advice would be greatly appreciated.
> Thank you,
> Kim
>
>
> W = WINDOW(DIMENSIONS=[1024,1024])
> FOR N=0,3 DO BEGIN
> Y = SIN((N+1)*FINDGEN(201)*!PI/25.0)
> P = PLOT(Y,/CURRENT,LAYOUT=[1,4,N+1])
> T = TEXT(0.18,0.94,'N = '+STRING(N+1),/NORMAL,TARGET=P)
> ENDFOR
I have no idea how to do this with function graphics.
Here is how I would do it with Coyote Graphics.
;--------------------------------------------------------
cgWindow, WXSize=800, WYSize=800, WMULTI=[0,1,4]
FOR N=0,3 DO BEGIN
Y = SIN((N+1)*FINDGEN(201)*!PI/25.0)
cgWindow, 'Plot', y, /LOAD, COLOR=cgColor('black'), $
BACKGROUND=cgColor('white')
cgWindow, 'XYOUTS',!X.CRange[0]+10, !Y.CRange[1]-0.5,$
'N = '+STRTrim(N,2), /LOAD, COLOR=cgColor('red')
ENDFOR
cgWindow, /EXECUTE
;--------------------------------------------------------
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thue. ("Perhaps thos speakest truth.")
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