shear / skew

Previous Topic Next Topic
 
classic Classic list List threaded Threaded
3 messages Options
Reply | Threaded
Open this post in threaded view
|

shear / skew

ravas
I was thinking about how we use a 3D vector,
and what it could be useful for.
And then I remembered adobe Illustrator has a shear tool.
https://helpx.adobe.com/illustrator/using/scaling-shearing-distorting-objects.html
Is it true that creating this tool would require a 3D vector?
Would this be a useful feature?
Reply | Threaded
Open this post in threaded view
|

Re: shear / skew

ravas
I guess it is a 2D problem after all.
https://en.wikipedia.org/wiki/Shear_mapping
Reply | Threaded
Open this post in threaded view
|

Re: shear / skew

dxli
In reply to this post by ravas

Not really, shear can be done using 2x2 matrics, but it is convenient to use 3x3 matrics to do 2d translation.

On Feb 26, 2016 10:32 PM, "ravas [via LibreCAD]" <[hidden email]> wrote:
I was thinking about how we use a 3D vector,
and what it could be useful for.
And then I remembered adobe Illustrator has a shear tool.
https://helpx.adobe.com/illustrator/using/scaling-shearing-distorting-objects.html
Is it true that creating this tool would require a 3D vector?
Would this be a useful feature?


If you reply to this email, your message will be added to the discussion below:
http://forum.librecad.org/shear-skew-tp5713097.html
To start a new topic under LibreCAD-dev, email [hidden email]
To unsubscribe from LibreCAD-dev, click here.
NAML