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0
votes
0answers
33 views

Trying to rotate a graphic over a field of parallel lines

I have a 10x10 grid of unit squares (picture a partial coordinate grid bounded by (0,0) and (10,10)) given by ...
0
votes
0answers
42 views

Change in direction when a line hits an ellipse?

I'm trying to simulate reflecting light off an elliptical mirror. I currently store the ellipse in the form {center,{radii},rotationAngle} and the ray of light is ...
9
votes
1answer
182 views

Compose many Geometric Transformations for 3D Graphics

I'm struggling to understand what would be a good way to compose several geometrical transformations to create a single TransformationFunction to be applied to a ...
7
votes
0answers
98 views

Plotting extra parametric axes

We are trying to plot a figure as below from data points. This version is a postprocessed plot (in Illustrator) just to obtain the skew axes. The rest is plotted with ...
2
votes
3answers
142 views

Rotation of a graph using manipulate

I'd like to look at some group transformation of curves in the plane. As a start, I'd like to try to do use the rotation group. Here's the code I tried to rotate a parabola so that I can watch the ...
5
votes
1answer
102 views

ListPolarPlot: 0 Degree at vertical axis

Is it possible to have ListPolarPlot start plotting at the vertical axis? By Default ListPolarPlot gives this result: ...
0
votes
1answer
162 views

Rotation matrix $\to$ quaternion

I found a very good link about quaternions in Mathematica , but I don't know how to create a quaternion from a rotation matrix. Can anyone help me, please? Update I need this: A rotation may be ...
2
votes
1answer
100 views

Randomly generated polymer with certain spatial density

For simplicity's sake, let the polymer's composing particle be integer 3-tuples (on 3D Cartesian grid), such that: Polymer-ness -- for all particle there is an directly adjacent neighbor. i.e in ...
0
votes
1answer
263 views

3D plot of a solid of revolution

I'm trying to rotate the area between the graphs of $y=3$ and $y=x^2$ around $y=1$. I'm not attempting to just find the area as that would just be ...
2
votes
1answer
94 views

how to distinguish clockwise from counterclockwise rotation

I need to distiguish the true rotation of a vector (time dependent, solution of a system of two coupled differential equation) respect a fixed vector. As showed in the follow,neither ...
1
vote
1answer
122 views

need help rotating an object about the z-axis using animation

This should be an easy question for anyone familiar with 3D animations. I have a 2D shape denoted by the equation ((x-1)^2+y^2) ((x+1)^2+y^2)==1 and I ...
0
votes
1answer
127 views

Revolving the area between two functions about an axis

I'm trying to graph the revolution of the area between two functions about an axis, but I'm new to Mathematica, and not sure how to proceed. My area is defined by ...
-2
votes
2answers
334 views

Problem with convert matlab function into mathematica version of euler angle

I've wrote a function that will extract euler angle from matrix according to Matlab's function in AeroSpace toolbox's dcm2angle package file. But not quite right. ...