Hello David & Jeff,
Thanks for the advice. While I could get the plot as desired, I still find the axis, ticks and labels in 'red' colour (for both the colorbar and plot).
Am I missing something? How can I change the color of axis, ticks and labels to default 'black' color?
------------------------
PRO testplot
tindex = indgen(1000)
d = randomu(1L, 12, 1000)
minval = MIN(d,MAX=maxval)
FigFile = 'testplot1.ps'
cgPS_Open, FigFile
cgDisplay
thick = (!D.Name EQ 'PS') ? 2:1
!P.Multi=0
device, decomposed=0
cgLoadCT, 0
cgLoadCT, 22, /Brewer, ncolors=6
mg_horizon, tindex, d, nbands=6,titles=ytitles, $
xstyle=1, ystyle=1, Xrange=[0,1000], $
Thick=thick, Font=-1, minimum=minval, $
maximum=maxval, Position=[0.1,0.3,0.70,0.94], $
colors=[0, 1, 2, 3, 4, 5]
cgColorbar, ncolors=6, divisions=6, TCharsize=0.12, $
range=[minval,maxval],/right, tlocation='right', $
Title='d',/Vertical, Font=-1, Minor=5, $
Position=[0.81,0.32,0.83,0.90]
; Closing the figure file
cgPS_Close
; Create a PNG file
cgPS2Raster, FigFile, /PNG
END
------------------------------
Thanks in advance,
Regards,
Madhavan
On Thursday, January 15, 2015 at 3:06:42 PM UTC+1, Jeff B wrote:
>> cgLoadCT, 22, /Brewer
>> tvlct, 0, 0, 0, 0
>> tvlct, 255, 255, 255, 255
>>
>> cgColorbar, /Brewer, CTindex=22, TCharsize=0.12, $
>> range=[minval,maxval],/right, tlocation='right', $
>> Title='d',/Vertical, Font=-1, Minor=5, $
>> Position=[0.81,0.32,0.83,0.90]
>
>
> Firstly, you need to add NCOLORS = 6 to both cgLoadCT and cgColorbar, Secondly, don't use the BREWER and CTINDEX keywords when you call cgColorbar; you have already loaded the color table you want. See the difference between
>
> cgLoadCT, 22, /brewer, nColors = 6
> cgColorbar, nColors = 6
>
> and
>
> cgLoadCT, 22, /brewer, nColors = 6
> cgColorbar, /brewer, ctIndex = 22, nColors = 6
>
> The last one does not use the color table you have loaded with cgLoadCT. Also note that when you do
>
> tvlct, 0, 0, 0, 0
>
> you are overwriting the first element of the color table. Therefore, black becomes one of the six colors you are using. If this is not the desired behavior, then perhaps you should place this outside the first six elements. I suggest using cIndex to look at what this does to your color table.
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