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Re: Plotting a horizontal line over a cgImage [message #93654 is a reply to message #93582]

Thu, 22 September 2016 14:08

Jeremy Bailin
Messages: 618
Registered: April 2008

Senior Member

On Monday, August 29, 2016 at 11:03:11 AM UTC-5, Christina Haig wrote:
> This question probably has a very specific audience, but anyone who might be able to help me I would greatly appreciate.
>
> Here is a good example of a cgimage plot, somewhat complex, but nothing untoward:
>
> p = pos[*,0]
> cgimage,data1,/DEVICE,/SCALE,/AXES,position=[p[0],p[1],p[2], p[3]],$
> xrange=[mint,maxt],yrange=[minp,maxp],charsize=3,$
> AXKEYWORDS={xtickformat:'(A1)',ylog:1,yticks:2,$
> ytickname:['10!e0','10!e1','10!e2']},/noerase
>
> As you can see, the yrange goes roughly from 1 to 100ish. I would like to plot a horizontal line at 2 that references the axes set in the cgimage command, and at the position of the same (there are 12 total plots in my output). Now oplot obviously does not allow the position command. So I attempted to cleverly use the cgplot command to overplot the line.
>
> cgplot,[mint,maxt],[2.0,2.0],thick=4,line=5,color=255,$
> position=[p[0],p[1],p[2],p[3]],/overplot
>
> However nothing shows up in my plot. Can anyone advise me how I might solve this problem?
>
> Thanks,
> Christina

Are minp and maxp what you think they are?

-Jeremy.

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[Message index]

		Plotting a horizontal line over a cgImage By: Christina Haig on Mon, 29 August 2016 09:03
		Re: Plotting a horizontal line over a cgImage By: wlandsman on Mon, 29 August 2016 11:20
		Re: Plotting a horizontal line over a cgImage By: Christina Haig on Mon, 29 August 2016 12:29
		Re: Plotting a horizontal line over a cgImage By: wlandsman on Tue, 30 August 2016 06:59
		Re: Plotting a horizontal line over a cgImage By: Christina Haig on Mon, 29 August 2016 11:20
		Re: Plotting a horizontal line over a cgImage By: Jeremy Bailin on Thu, 22 September 2016 14:08
		Re: Plotting a horizontal line over a cgImage By: Christina Haig on Fri, 23 September 2016 12:04

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