Inkscape Tutorial for Engineers, 12 slides in PDF

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GeorgeZ
Posts: 6
Joined: Tue Dec 19, 2017 9:39 am

Inkscape Tutorial for Engineers, 12 slides in PDF

Postby GeorgeZ » Sat Jul 20, 2019 3:37 am

Fellow Inkscapers:

Those 12-page inkscape tutorial slides were created in Inkscape when I was learning the software in 2017. They were printed on the back of my 2018 monthly calendar (why 12 pages).

The slides were updated in March 2019, and were posted on my website. It is still used as a reference by myself now and them. I will be happy to receive any comments or error reports.

Link to the webpage
https://georgexyz.com/pages/inkscape-tutorial.html

Link to the PDF file directly:
https://github.com/georgexyz19/georgexyz.com/raw/master/content/files/InkscapeTutorial1903.pdf

G.
Last edited by GeorgeZ on Tue Jul 23, 2019 12:16 am, edited 1 time in total.

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druban
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Joined: Fri Nov 20, 2009 10:48 pm

Re: Inkscape Tutorial for Engineers, 12 slides in PDF

Postby druban » Sat Jul 20, 2019 3:36 pm

Pretty thorough! "Command Bar: Not very useful" made me laugh, too true.
Too bad your pen tool page doesn't cover Spiro or BSpline though. IMO the space used for the explanation of Bezier curve equations could have been better used introducing Spiro and Bspline or the shape option.
On the same page at the end where it says, "Node Tools" that's not quite correct, because those are not different tools but rather "Node Tool Tasks" or Node Tool Commands" or "node Tool Actions" might all be better
Your mind is what you think it is.

GeorgeZ
Posts: 6
Joined: Tue Dec 19, 2017 9:39 am

Re: Inkscape Tutorial for Engineers, 12 slides in PDF

Postby GeorgeZ » Tue Jul 23, 2019 12:12 am

druban wrote: Too bad your pen tool page doesn't cover Spiro or BSpline though. IMO the space used for the explanation of Bezier curve equations could have been better used introducing Spiro and Bspline or the shape option.



Nice suggestions on Spiro and BSpline paths. I do not have many chances to use those paths, maybe once or twice in a few years. What do you use those paths for?

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druban
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Joined: Fri Nov 20, 2009 10:48 pm

Re: Inkscape Tutorial for Engineers, 12 slides in PDF

Postby druban » Tue Jul 23, 2019 3:48 pm

Well, for engineers the Spiro is not much use I think, but decorative flourishes - curlicues - are actually much easier with Spiro than Bezier.
The bspline is useful to achieve rounded corner shapes without using a lot of nodes and guide shapes etc.
Because inkscape does not have a radiused corner drawing tool, both these tools might be of some use to engineers in particular.
There's nothing they do that can't be done with Bezier but some things are faster and easier
Your mind is what you think it is.

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

Re: Inkscape Tutorial for Engineers, 12 slides in PDF

Postby Lazur » Tue Jul 23, 2019 5:29 pm

Just a note from someone drafting with cad in a daily basis.

Cad does have splines and can use either Bézier or B-splines, yet for practical purposes polylines are better. You can offset them keeping it parallel to the original, whereas splines have no such feature.
In that regard spiro-spline is more of the cad-like approach.

However when it comes to transfer the work to someone else as a printable pdf...
those polylines are split to small straight line segments at a given resolution. Reason why? Well you can add a path style like a pattern along path path effect and the stretched patterns by definition are converted to line segments. (Think about this one for example.)
So sometimes it's better to use fills because those can also be set to have the same outline as a polyline and behave as one yet their arcs are preserved when saving as pdf.

What does that have to do with inkscape? Not much. Inkscape tends to draw everything from cubic Béziers which is nowhere a precise entity.
Although polyline and circular path segments are part of the svg standard, inkscape doesn't have a gui for using those features.


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