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fill_plot [message #93000]

Fri, 08 April 2016 04:36

rsori
Messages: 5
Registered: November 2014

Junior Member

Hi

I plot a vector with the data i need, for example example:

data=findgen(18) ; are negative and positive values

openr,1,'G:\datos.dat'
readf,1,data
close,1

cgplot,

How could I shade with blue the data under x axis and red the positive values above x ???

I was reading to use polyfill but always use two dimensions, vectors x and y...

Thank you !!!

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Re: fill_plot [message #93001 is a reply to message #93000]

Fri, 08 April 2016 05:20

Mats Löfdahl
Messages: 263
Registered: January 2012

Senior Member

Den fredag 8 april 2016 kl. 13:36:55 UTC+2 skrev Rogert:
> Hi
>
> I plot a vector with the data i need, for example example:
>
> data=findgen(18) ; are negative and positive values
>
> openr,1,'G:\datos.dat'
> readf,1,data
> close,1
>
> cgplot,
>
> How could I shade with blue the data under x axis and red the positive values above x ???
>
> I was reading to use polyfill but always use two dimensions, vectors x and y...
>
> Thank you !!!

Your gcplot command is incomplete but if you do

cgplot, data

then data is your y and your x is indgen(n_elements(data)).

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Re: fill_plot [message #93004 is a reply to message #93000]

Fri, 08 April 2016 05:38

rsori
Messages: 5
Registered: November 2014

Junior Member

Thank you !!! yes yes I forgot to put data, I will try

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