comp.lang.idl-pvwave archive: archive » White and black colours appearing when selecting colour table

Home » Public Forums » archive » White and black colours appearing when selecting colour table

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

White and black colours appearing when selecting colour table [message #91961]

Wed, 23 September 2015 08:38

liam.steele
Messages: 13
Registered: September 2015

Junior Member

I am wanting to draw a certain number of contours, each with a different colour ranging from blue to red. However, when I select the colour table and set the number of colours, I get a random white and black line appearing.

I've included a simple example below, and the resulting image I get can be found here: http://s7.postimg.org/bm8svkbnv/idl.png

I know there is obviously something simple I'm forgetting to do, but I just can't think what it is!

---

window, 0, retain=2
device, decomposed=0

cgloadct, 25, /brewer, /reverse, ncolors=100
ccol = bindgen(100)

plot, [0,1], [0,100], /nodata, $
background=cgcolor('white'), color=cgcolor('black')
for i = 0, 99 do oplot, [0,1], [i,i], color=ccol[i], thick=12

end

Report message to a moderator

[Message index]

		White and black colours appearing when selecting colour table By: liam.steele on Wed, 23 September 2015 08:38
		Re: White and black colours appearing when selecting colour table By: David Fanning on Wed, 23 September 2015 12:57
		Re: White and black colours appearing when selecting colour table By: liam.steele on Thu, 24 September 2015 02:24
		Re: White and black colours appearing when selecting colour table By: David Fanning on Thu, 24 September 2015 05:12
		Re: White and black colours appearing when selecting colour table By: liam.steele on Thu, 24 September 2015 05:41
		Re: White and black colours appearing when selecting colour table By: David Fanning on Thu, 24 September 2015 05:46
		Re: White and black colours appearing when selecting colour table By: David Fanning on Thu, 24 September 2015 05:55

Previous Topic:	launch a file
Next Topic:	Plot

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 09:18:18 PDT 2025

Total time taken to generate the page: 0.00384 seconds