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Slow object graphics when plotting multiple lines [message #92954]

Fri, 01 April 2016 05:51

steven.abel
Messages: 13
Registered: April 2016

Junior Member

I am new to object graphics and struggling to speed up a simple plot that contains multiple lines.

Here is an example that plots 200 lines - the object graphics version is very slow compared to the direct graphics version.

;create some dummy data
x = replicate(0.,11,200)
y = x
FOR i=0,199 DO x[*,i] = FINDGEN(11)
FOR i=0,199 DO y[*,i] = RANDOMN(seed,11)

;plot in direct graphics
plot,[0,10],[-5,5],/nodata,yrange=[-5,5],ystyle=1
FOR i=0,199 DO oplot,x[*,i],y[*,i]

;plot in object graphics
w = window()
w.REFRESH, /DISABLE
p = plot([0,10],[-5,5],/nodata,yrange=[-5,5],/current)
FOR i=0,199 DO !NULL=plot(x[*,i],y[*,i],/overplot)
w.REFRESH

Is there any way to speed this up in object graphics?

Thanks

Steve

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[Message index]

		Slow object graphics when plotting multiple lines By: steven.abel on Fri, 01 April 2016 05:51
		Re: Slow object graphics when plotting multiple lines By: greg.addr on Mon, 04 April 2016 01:56
		Re: Slow object graphics when plotting multiple lines By: steven.abel on Mon, 04 April 2016 03:49
		Re: Slow object graphics when plotting multiple lines By: lecacheux.alain on Mon, 04 April 2016 04:12
		Re: Slow object graphics when plotting multiple lines By: steven.abel on Mon, 04 April 2016 04:39
		Re: Slow object graphics when plotting multiple lines By: lecacheux.alain on Mon, 04 April 2016 05:19
		Re: Slow object graphics when plotting multiple lines By: steven.abel on Mon, 04 April 2016 07:20
		Re: Slow object graphics when plotting multiple lines By: Yngvar Larsen on Mon, 04 April 2016 07:48
		Re: Slow object graphics when plotting multiple lines By: Paul Van Delst[1] on Mon, 04 April 2016 08:09
		Re: Slow object graphics when plotting multiple lines By: steven.abel on Mon, 04 April 2016 08:27
		Re: Slow object graphics when plotting multiple lines By: lecacheux.alain on Mon, 04 April 2016 08:54
		Re: Slow object graphics when plotting multiple lines By: Yngvar Larsen on Mon, 04 April 2016 09:50
		Re: Slow object graphics when plotting multiple lines By: lecacheux.alain on Mon, 04 April 2016 10:15
		Re: Slow object graphics when plotting multiple lines By: Yngvar Larsen on Mon, 04 April 2016 13:10

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