Non-linear graphics

Post questions on how to use or achieve an effect in Inkscape.
mohammad
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Joined: Sat Dec 11, 2010 7:41 pm

Non-linear graphics

Postby mohammad » Sat Dec 11, 2010 8:09 pm

Hello everyone

First of all thank you very much to everyone involved in creating and maintaining this wonderful tool. I'm a graduate economics student (UK).

I need some help regarding drawing some concave functions. Here are some example of what type of things I'd like to draw:
Image Image Image Image

Initially, I was thinking of drawing the graphs in LaTeX, but then I found out about Incscape, allowing me to concentrate on my main work. :)

If some kind souls can help me by providing me some instructions and one or two example I'd really appreciate.

Regards

Mohammad

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prkos
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Re: Non-linear graphics

Postby prkos » Sun Dec 12, 2010 1:20 am

You can use Function Plotter extension, it's under Extensions > Render menu. http://tavmjong.free.fr/INKSCAPE/MANUAL ... ionPlotter
just hand over the chocolate and nobody gets hurt

Inkscape Manual on Floss
Inkscape FAQ
very comprehensive Inkscape guide
Inkscape 0.48 Illustrator's Cookbook - 109 recipes to learn and explore Inkscape - with SVG examples to download

mohammad
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Re: Non-linear graphics

Postby mohammad » Sun Dec 12, 2010 7:52 pm

Thanks for your information, prkos. I tried but I'm not really sure how to do it. :(

I was wondering if I can do it without the math involved. In other words, image the drawing canvas and then all the curves and other things that you can put in MS Word. If it's possible in Inscape (or anything else in the world of ) I'd grateful if someone can show me a simple example (with concave and/or convex lines) and how it was done. Thanks for your patience. :)

M

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prkos
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Re: Non-linear graphics

Postby prkos » Mon Dec 13, 2010 7:22 am

The extensions windows have a tab that tell you how to use them, you have to create a rectangle first, remove its fill and set stroke to black, select it and then apply the formula.

If you don't want to use formulas at all and only want approximate curves you can use the Pencil :tool_pencil: or Pen :tool_pen: tools, then Node tool :tool_node: to edit the paths.
just hand over the chocolate and nobody gets hurt

Inkscape Manual on Floss
Inkscape FAQ
very comprehensive Inkscape guide
Inkscape 0.48 Illustrator's Cookbook - 109 recipes to learn and explore Inkscape - with SVG examples to download

mohammad
Posts: 5
Joined: Sat Dec 11, 2010 7:41 pm

Re: Non-linear graphics

Postby mohammad » Fri Dec 17, 2010 4:24 am

Thanks a lot for tips, prkos. That's what I was looking for. Now I need to find a nice mouse and a mousepad for smooth drawing. :D

Cheers

M

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brynn
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Re: Non-linear graphics

Postby brynn » Fri Dec 17, 2010 7:04 am

If you use the Pen (Bezier) tool, you don't need to be smooth. And if you use the Pencil tool, there's a setting on the tool control bar for smoothing.

mohammad
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Joined: Sat Dec 11, 2010 7:41 pm

Re: Non-linear graphics

Postby mohammad » Fri Dec 31, 2010 12:36 am

brynn wrote:If you use the Pen (Bezier) tool, you don't need to be smooth. And if you use the Pencil tool, there's a setting on the tool control bar for smoothing.

Thanks brynn for help as well. :)

Sorry for the delay, I don't have 24hr internet connection atm.

I need your help (again!) regarding putting texts, including Greek and other mathematical symbols in the pictures. But I don't know how do those in Incscape. FYI, the font size I'm using are between 10 & 12.

Regards

M

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brynn
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Re: Non-linear graphics

Postby brynn » Fri Dec 31, 2010 4:15 am


~suv
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Re: Non-linear graphics

Postby ~suv » Fri Dec 31, 2010 6:44 am

brynn wrote:And I don't see any info in the tavmjong Guide.

It's in the draft version for the Inkscape 0.48 manual [1]:

[1] the draft version (Draft of Fourth Edition Available) including the link is mentioned on the start page of the current manual (Third Edition)

mohammad
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Re: Non-linear graphics

Postby mohammad » Tue Jan 04, 2011 3:16 am

Thanks Brynn and ~suv for your tips. It solves the problem in part.

I was wondering if it is also possible to use fractions, subscript, superscript etc as well.

Regards

M

~suv
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Re: Non-linear graphics

Postby ~suv » Tue Jan 04, 2011 3:27 am

mohammad wrote:I was wondering if it is also possible to use fractions, subscript, superscript etc as well.
The available text formatting tools in Inkscape 0.48 are described in the manual (draft version):Note that Inkscape isn't a word-processing application and only has limited text formatting capabilities so far (the latest version 0.48 has seen some major improvements compared to earlier versions, including the support for sub-/superscript).


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