Remove particular color from a plot

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jayghosh
Posts: 4
Joined: Sat Mar 26, 2016 12:49 am

Remove particular color from a plot

Postby jayghosh » Sat Mar 26, 2016 12:55 am

Hello,

I wanted to know if there is an easy way to remove a particular color from a plot I have. In the attached plot, I just want the figure to have the red plot and delete the blue plot. I would have to do this for multiple plots for my research work

Thanks so much!

Jay
Attachments
image4241.png
image4241.png (180.5 KiB) Viewed 1827 times

Lazur
Posts: 4717
Joined: Tue Jun 14, 2016 10:38 am

Re: Remove particular color from a plot

Postby Lazur » Sat Mar 26, 2016 1:08 am

Hi.

Try edit/select same/fill and stroke, then delect selected objects.

jayghosh
Posts: 4
Joined: Sat Mar 26, 2016 12:49 am

Re: Remove particular color from a plot

Postby jayghosh » Sat Mar 26, 2016 1:31 am

Hello Lazur,

Thanks for your reply. I tried doing that but nothing happened. I perhaps should have mentioned that it is just a png image?

Jay

Lazur
Posts: 4717
Joined: Tue Jun 14, 2016 10:38 am

Re: Remove particular color from a plot

Postby Lazur » Sat Mar 26, 2016 1:45 am

That's a totally different perspective.

You can use a graphic editor with better luck like gimp yet the results won't be as good as they were plotted without the blue lines in first place.
(Due to anti-aliasing, those are "smudged" at intersections or at least one covering the other.)

jayghosh
Posts: 4
Joined: Sat Mar 26, 2016 12:49 am

Re: Remove particular color from a plot

Postby jayghosh » Sat Mar 26, 2016 1:51 am

Thanks. I will give gimp a try.

hulf2012
Posts: 716
Joined: Sat Nov 24, 2012 12:37 pm

Re: Remove particular color from a plot

Postby hulf2012 » Sat Mar 26, 2016 2:06 am

Hello

But that plot...

was created in a program of your own?... Does that program can't export to a vector format?

Is Gnuplot?... I think it has an option to export to SVG.
If you have problems:
1.- Post a sample (or samples) of your file please.
2.- Please check here:
http://tavmjong.free.fr/INKSCAPE/MANUAL/html/index.html
3.- If you manage to solve your problem, please post here your solution.

jayghosh
Posts: 4
Joined: Sat Mar 26, 2016 12:49 am

Re: Remove particular color from a plot

Postby jayghosh » Sat Mar 26, 2016 3:23 am

Hi Hulf. No it was just a snapshot from pdf which I saved as a png.

Meanwhile I got somewhat desirable result using gimp as attached.
Attachments
hello.jpg
hello.jpg (127.32 KiB) Viewed 1779 times

Lazur
Posts: 4717
Joined: Tue Jun 14, 2016 10:38 am

Re: Remove particular color from a plot

Postby Lazur » Sat Mar 26, 2016 3:34 am

Nice.

Although if you do have the original pdf-s, they might be vectors that inkscape could care of?

Saving as png is also at a fixed dpi which probably doesn't render raster images as they were embedded -if the plot was an embedded raster image.


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