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Re: Multicolored dashed lines??? [message #45548]

Wed, 21 September 2005 14:19

R.G. Stockwell
Messages: 363
Registered: July 1999

Senior Member

"Haje Korth" <haje.korth@nospam.jhuapl.edu> wrote in message
news:dgsgmn$s9c$1@aplcore.jhuapl.edu...
> Hi,
> Before I start coding something really crappy, I wanted to ask if anyone
> has a routine that can plot a multicolored dashed line (e.g.,
> black-white)? The purpose is to have a line that can be seen against
> arbitrary background colors, such as used in a color spectrogram.
>
> Thanks,
> Haje

Hi Haje,
perhaps something along the lines of:
(using the findgen functions as x and y)
plots,findgen(100),findgen(100) + 5,linestyle=5,color=(findgen(100) mod
2)*255

ie make an array of color that = [0,255,0,255] so that the dashes go
[black,white,black,white]

(at least for my color table, color=255 is white]. Easy to extend tothree or
more

colors too.

I've had to make symbols that could be seen both against a white background
and a black background,

so I just make a white circle, and overplotted with a black cross, something
like that would work too.

Cheers,

bob

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[Message index]

		Re: Multicolored dashed lines??? By: R.G. Stockwell on Wed, 21 September 2005 14:19
		Re: Multicolored dashed lines??? By: mankoff on Wed, 21 September 2005 14:16
		Re: Multicolored dashed lines??? By: savoie on Wed, 21 September 2005 14:03

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