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31
votes
2answers
2k views

Mollweide maps in Mathematica

Context In my field of research, many people use the following package: healpix (for Hierarchical Equal Area isoLatitude Pixelization) which has been ported to a few different languages (F90, C,C++, ...
17
votes
1answer
733 views

Peirce's quincuncial projection

The Peirce quincuncial projection is the cartographic projection of a sphere onto a square. In short, I would like to see it implemented in Mathematica. Here is my code: ...
13
votes
1answer
748 views

How to map an image to get an illusion of 3D

I would like to distort or map a given jpg so it looks 3D when viewed from certain angle, as in the following youtube video: http://www.youtube.com/watch?v=IfCCUd8mFtg. The most interesting part of ...
7
votes
3answers
658 views

How to create an inverse pole figure color map

To interpret electron backscatter diffraction (EBSD) results, inverse pole figures are used. A three dimensional space of directions ([100], [110] and [111] for those who know about crystallography) ...
5
votes
2answers
241 views

Mapping StreamPlot onto spherical surfaces

Suppose I have some vector field equations $(f(\theta,\phi), g(\theta,\phi))$. The StreamPlot can be created easily in 2D, but I would like to visualize the stream ...
5
votes
3answers
259 views
2
votes
2answers
99 views

Projection of ListPointPlot3D on 2 axes

I am just starting to learn Mathematica and I was trying to get projection of the list of points in ListPointPlot3D. I read about ViewPoint option. It shows the axes I need but doesn't show the points ...
2
votes
1answer
158 views

project from a n-dimensional space to 2-dim

let's say that I have a sphere in $N$-dimensions $$x_1^2+x_2^2+...+x_N^2=R$$ If I want to know the projection on the $x_1-x_2$ plane in this case I can figure out myself that is a circle, but how ...
1
vote
1answer
123 views

Winkel Tripel and Robinson Projections?

How can I do WorldPlot with the WorldProjection -> Winkel Tripel or Robinson projections. Mathematica has Mollweide and several others defined, but not these popular projections adapted by National ...
1
vote
1answer
38 views

Compability between Graphics coordinates and shifted projections in GeoGraphics

I'd expect GeoGraphics to handle positions of points since they are provided with GeoPosition wrapper. But it is not the case ...
1
vote
1answer
278 views

Plot a graph in a plane

I have a 3D graphics and i must plot a trajectory on a costant plane but i don't understand how to do this. With a simple Show[] command i can't do this. This is the code to plot the graphics: ...
1
vote
1answer
169 views

Projection of Density Plot [closed]

Say I have a density plot such as DensityPlot[Sin[x]*Sin[y],{x,-2,2},{y,-2,2}] Is there a way to see a projection of this plot. For example is there a way to see ...
1
vote
0answers
228 views

Automatic inverse for Lambert’s Azimuthal Equal-Area Projection

I’m interested in finding closed-form inverses for map projection equations in general (of course, this is not always possible). I’m hoping Mathematica can help me with some of the trickier ones. As ...
0
votes
2answers
297 views

Projecting curves of intersection onto a plane

Referring to this page, Plotting implicitly-defined space curves How can I project the curves of intersection onto the x-y plane?
0
votes
1answer
375 views

Projecting on an arbitrary plane

I have the following code, giving me a representation of a photon hitting a cylinder: ...