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Re: Secondary axis in NG [message #74421 is a reply to message #74420]

Mon, 17 January 2011 07:44

lecacheux.alain
Messages: 325
Registered: January 2008

Senior Member

On 17 jan, 13:34, Wox <s...@nomail.com> wrote:
> Hi all,
>
> How do I add a secondary axis to a plot in new graphics (i.e. like
> this in direct graphics:http://www.dfanning.com/tips/another_yaxis.html)?
>
> This is as far as I got:
> x = FINDGEN(100)
> theta = x/5
> curve = SIN(x/5) / EXP(x/50)
> p=plot(x,curve)
> p=plot(x,theta,/current,COLOR='ff00'xl,YCOLOR='ff00'xl,YTEXT POS=1,YLOG=1)
>
> I want the second axis to be logarithmic and to the right-hand side of
> the plot. I also want to supress the right Y-axis in the first plot
> and the left Y-axis in the second plot. Any ideas?

x = FINDGEN(100)
theta = x/5
curve = SIN(x/5) / EXP(x/50)
p1=plot(x,curve, AXIS_STYLE=1)
p2=plot(x,theta,/
current,COLOR='ff00'xl,YCOLOR='ff00'xl,YTEXTPOS=1,YLOG=1,
AXIS_STYLE=0)
px = axis(TARGET=p2,'Y', LOCATION=[x[-1],theta[0]], /DATA, TEXTPOS=1)

comments:
AXIS_STYLE=1 suppresses the right-hand side axis in first plot
AXIS_STYLE=0 suppresses all axes in second plot
the NG axis function draws an axis at the location you like.
TARGET allows the axis to be attached to the right plotting object.
alx.

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		Re: Secondary axis in NG By: Wout De Nolf on Mon, 17 January 2011 07:50
		Re: Secondary axis in NG By: lecacheux.alain on Mon, 17 January 2011 07:44

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