Questions tagged [geometry]

Questions on the application of Mathematica to geometric problems. You might also consider adding the [graphics] tag, if appropriate.

81 questions with no upvoted or accepted answers
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Bug introduced in 9.0 or earlier and fixed in 11.0.0 Why does this work: Graphics[{Circle[{0, 0}, -Pi/4]}] But this doesn't? ...
• 14.9k
121 views

Order of PolygonCoordinates[] is undefined in Mathematica 12?

Probably I am missing something fundamental. I try to get a polygon's ordered coordinates, but PolygonCoordinates[] yields something pretty unordered. Am I missing some essential function? ...
1k views

Minimalistic code challenge on Apollonian gaskets

I've been recently fascinated by the beauty, symmetry and mathematical richness of the Apollonian gaskets. So I felt myself challenged to see if it was possible to generate one in Mathematica with a ...
• 997
187 views

Higher order Laplacian flows

Given disjoint surfaces $q_i$ in 3D and their 1D boundary curves $\partial q_i = \gamma_i$, I seek a surface $p$ that joins the $q_i$, where $p \cup q_i$ forms a (piecewise) $C^k$ surface that ...
• 36k
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How to Export to/Import from GeoGebra?

I'd like to convert geometric figures between Mathematica and GeoGebra. Does anyone know how to do that?
• 1,398
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Need help understanding weird RegionUnion behavior

I'm trying to understand some weird behaviors of RegionUnion in a small piece of code. In particular, RegionUnion is not ...
• 61
366 views

Anamorphic projection onto the corner of a room

I want to use a router to carve anamorphic projections of polyhedron wireframes onto two adjacent walls of my office. Like this: In order to do this I need to transfer the positions of the vertices ...
• 3,693
784 views

Death of parallel sub-kernels

EDIT : Finally, the new Mathematica 10.0 seems to fix it. I have a little parallelization problem. I wrote a code to generate a quasicrystal by dynamical generation. Here the code: ...
• 407
120 views

• 2,335
1 vote
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Find the intersection coordinate of a line and a 3D surface defined by a contour plot

I have two points, for instance {1, 1, 1} and {10, 11, 15} that connected to form a line. I also have an enclosed surface region ...
• 437
1 vote