The geometric-transform tag has no wiki summary.
57
votes
4answers
4k views
How to peel the labels from marmalade jars using Mathematica?
How can I detect and peel the label from the jar below (POV, cylinder radius, jar contents are all unknown)
to get something like this, which is the original label before it was stuck on the jar?
...
17
votes
2answers
409 views
Movable text on a curve
Having an arbitrary curve defined as InterpolatingFunction, what is the best way to place a text on this curve? The text generally has two rows, for example: ...
3
votes
0answers
145 views
Unexpected behavior of GeometricTransformation
I have the following mapping on the complex plane:
$$
z \mapsto \tau \mu z-1,
$$
where $\mu$ is complex, $\tau$ is real number. I want to draw the image of left unit semidisk and play with $\tau$.
...
13
votes
4answers
832 views
How to draw a great circle on a sphere?
I apologize for the text description, but new users are not allowed to post images.
I want to draw a circle that cuts through the center of a sphere and has an inclination of 15 degrees with the ...
10
votes
2answers
203 views
How to get the real PlotRange of Graphics with GeometricTransformations in it?
For demonstrating the problem, have a look at the following example, and try adjusting the rotation angle a and/or the Locator ...
3
votes
4answers
227 views
How to transform this matrix & swap its columns in a simple way?
I would like to transform matrix $\mathbf A = \begin{pmatrix} a&b&i&j\\ c&d&k&l \\ e&f&m&n \\ g&h&o&p \end{pmatrix}$ into matrix $\mathbf B = ...
