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Re: imcontour no longer plotting in color [message #81026 is a reply to message #81025]

Thu, 02 August 2012 05:08

wlandsman
Messages: 743
Registered: June 2000

Senior Member

Since you are mostly using Coyote graphics (CGLoadCt, IMCONTOUR), I would also use CGCONTOUR rather than CONTOUR. That likely isn't the main problem, but it might be contributing. You also might want to use PS_START and PS_END

It would also be useful to know the value of the variable 'colourtable'.

I've never used the PALETTE keyword but I'd think you'd want it in both the IMCONTOUR and (CG)CONTOUR commands, since it looks like you are only using IMCONTOUR to set up the axes, and actually drawing with (CG)CONTOUR.

Just some quick thoughts. --Wayne

On Thursday, August 2, 2012 6:16:58 AM UTC-4, Balthasar Indermuehle wrote:
> To add some more information... Here's how the plotting goes, can anyone see a flaw in this? the result is a plot in black and white with contours drawn correctly, and the colorbar in color!
>
>
>
> Setting things up:
>
>
>
> !p.multi = [0, 1, 1 ] ; plot 1 x 1 plots on one sheet. Set to 0, 2, 2 if you want 2 x 2 plots for example
>
> SET_PLOT, 'PS'
>
> DEVICE, filename=fname, XSIZE=22, YSIZE=22, /COLOR, BITS=8, /ENCAPSULATED, FONT_SIZE=8
>
> TVLCT, INDGEN(256), INDGEN(256), INDGEN(256)
>
>
>
> Load the colour table:
>
>
>
> cgLoadCT, colourtable, RGB_Table=pal, CLIP=[1, MAX(data_map)/MAX(data_map)*255], /BREWER, /REVERSE
>
>
>
>
>
> IMCONTOUR, data_map, HDR_MOM, TITLE=title, NLEVELS=num_colours, /FILL, POSITION=pos, PALETTE=pal, TYPE=1, CHARSIZE=1, /OVERLAY
>
>
>
> ; add contours
>
> CONTOUR, data_map, x, y, levels=FINDGEN(num_cont) * (cp / (num_cont-1.0D)) + (cp / 2), /FOLLOW, /OVERPLOT
>
>
>
> plot the colour bar
>
> pos=[0.92, 0.1, 0.94, 0.9]
>
> cgColorbar, Title=title, Divisions=12, NColors=num_colours, $
>
> Range=[MIN(data_map),MAX(data_map)], TickLen=1.0, POSITION=pos, Charsize=1, $
>
> PALETTE=pal, /VERTICAL, /RIGHT, FORMAT='(D0.2)'

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[Message index]

		Re: imcontour no longer plotting in color By: David Fanning on Thu, 02 August 2012 20:27
		Re: imcontour no longer plotting in color By: Balthasar Indermuehle on Thu, 02 August 2012 18:23
		Re: imcontour no longer plotting in color By: Balthasar Indermuehle on Thu, 02 August 2012 17:59
		Re: imcontour no longer plotting in color By: David Fanning on Thu, 02 August 2012 06:47
		Re: imcontour no longer plotting in color By: Balthasar Indermuehle on Thu, 02 August 2012 06:34
		Re: imcontour no longer plotting in color By: wlandsman on Thu, 02 August 2012 05:08
		Re: imcontour no longer plotting in color By: David Fanning on Thu, 02 August 2012 05:02
		Re: imcontour no longer plotting in color By: Balthasar Indermuehle on Thu, 02 August 2012 03:16

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