For questions specific to the Graphics3D command and related 3D graphics functionality.

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15
votes
2answers
1k views

Which ray-tracing software is compatible with Graphics3D?

I am interested in working alternative to Mathematica's FrontEnd for rendering Graphics3D produced by Mathematica. The requrements are: An ability to import ...
15
votes
0answers
197 views

Bug(?) in version 10: Tooltip and ListPointPlot3D

Bug introduced in 10.0.0, persists through 10.1 The coordinates of a point in a three dimensional graph can be shown in a tooltip: ...
14
votes
6answers
619 views

How can I suppress rotation of 3D graphics?

Given a 3D image built of a combination several Graphics3D objects, is it possible to suppress rotation of the displayed image by the mouse? To be specific, here ...
14
votes
3answers
977 views

How can locators be added to the points on a 3D grid?

Here is a pared down example of some 3D data that I want to make dynamic and add locators to each set of points. Is that possible? ...
14
votes
3answers
778 views

How can I set the view vector in a 3D scene by tracking my face's position?

Faking 3D with 2D tracking data is something that I've long wanted to implement for use with my front facing laptop camera. A first step to solving this would be dynamically setting the viewpoint ...
14
votes
2answers
1k views

Texture mapping and resizing a sphere primitive in Mathematica

Background Info In Mathematica, it's only possible to texture map a sphere through the use of SphericalPlot3D or ...
14
votes
2answers
589 views

How to create a simple cross eyed 3d plot

I wanted to create a stereoscopic view of my threedimensional plots, so I can interpret them better. The basic things, one would need, are two plot windows which are somehow connected to each other ...
14
votes
2answers
262 views

Can Mathematica produce manipulatable 3D plots for deployment on the web?

I have a 3D plot I produced in Mathematica and I would like to share it with the world in a way that allows my audience to rotate it and interact with it in the broadest possible way. I would like ...
14
votes
1answer
404 views

Method -> {“AxesInFront” -> False} for Graphics3D

I'm aware of two ways to manage positioning of Axes for Graphics3D: AxesOrigin and ...
13
votes
3answers
2k views

Finding a Concave Hull

I have a 3d clustered data: Is there any other way to get concavehull of 3D data points?
13
votes
2answers
594 views

Phase portrait on a cylinder

It is very nice and very easy to make a sketch of a phase portrait with StreamPlot. For example, for the classical pendulum, defined by $$ \dot x=y,\\ \dot y=-\sin x, $$ The code ...
13
votes
3answers
364 views

Graphics3D: Opacity limitations

Trying to make a better-looking globe model, I start off with something like this To enhance the 3D effect, I want the lines further from the eye to be "grayer" than the lines closer to the eye, as ...
13
votes
3answers
413 views

Representing a Stencil of a Finite Difference Operator with Mathematica's Graphics3D

I have the following finite difference operator: $$ Lu_{ijk}:= du_{ijk} +c(u_{i-1,j,k} + u_{i+1,j,k} + u_{i,j-1,k} + u_{i,j+1,k} + u_{i,j,k-1} + u_{i,j,k+1})\\ -u_{i-1,j+1,k}-u_{i-1,j-1,k} - ...
13
votes
1answer
428 views

Mathematica: 3D plot based on combined 2D graphs

I have several sigmoidal fits to 3 different datasets, with mean fit predictions plus the 95% confidence limits (not symmetrical around the mean) and the actual data. I would now like to show these ...
13
votes
2answers
407 views

How to build a 3D graph from a 3D matrix?

Following this and that question and the corresponding answers, Mathematica can build 2D graph from 2D matrices. Question How to make the corresponding 3D graphs from 3D cubes? Attempt ...
13
votes
1answer
770 views

ListSurfacePlot3D generates ugly artifacts

I have a list of $\{x,y,z\}$ pairs representing points in $R^3$. For every unique value of $z$ there are many $\{x,y\}$ pairs defining a polygon/contour in that particular $z$-plane. My dataset looks ...
13
votes
2answers
1k views

How do I map a Mollweide projection onto a sphere?

I have this Mollweide projection of the Earth circa 600 million years ago (http://jan.ucc.nau.edu/~rcb7/370moll.jpg).(1) I want to map this onto a sphere. My results have big black splotches in ...
13
votes
1answer
399 views

How do I stop my joystick from rotating a 3D graphic?

I am trying to use Mathematica to illustrate mixed strategies in Game Theory. I want my students to be able to use common joysticks as controllers. What I find, however, is that in addition to doing ...
13
votes
1answer
554 views

Easy way to export Graphics3D as triangles with VertexNormals?

I would like to export an arbitrary Graphics3D object as a text file containing: list of vertices vertex normals triangle faces ...
13
votes
0answers
752 views

Using TetGen in Mathematica to get 3D Voronoi diagram

In this post, the use of TetGen for 3D Voronoi tesselation has been briefly discussed. However there is still no info about the use of TetGen to generate a 3D Voronoi diagram. The TetGen documentation ...
12
votes
2answers
538 views

Calculating morphometric properties

Is it possible to calculate segment length, segment diameter and branch angles for three dimensional geometry. Geometry contains vertex points and polygon surfaces as ...
12
votes
2answers
367 views

Color Histogram3D by Bin Location

I am using a Histogram3D plot to view the correlation of the R & G of an RGB image. Naturally, I want the bins to have a color corresponding to their $x$, $y$ ...
12
votes
1answer
2k views

3D plots with parallel projection

It is easy to make 3D Plots with Mathematica, e.g. use: Plot3D[Sin[x+y^2],{x,-3,3},{y,-2,2}] But I want to have nice plots in my thesis, so I decided to use ...
12
votes
1answer
414 views

Facegrids at ticks

I want to plot a 3D graphic and I want facegrids at the ticks that I specify. I've tried several solutions but I cannot get this working. The result with the code provided below is that it does its ...
12
votes
1answer
2k views

How do I flatten transparency on a graphics, for conversion to eps or similar?

I've got a graphic that I'd like to save as an eps file. Trouble is, the graphic has some transparency to it. Since the eps format doesn't handle transparency, I want to flatten the transparency out, ...
12
votes
2answers
3k views

Graphics3D: Finding intersection of 3d objects and lines

I found these two nice links 1) intersecting graphics 2) Implementation of Balaban's Line intersection algorithm in Mathematica which works for 2d. However, I need to find whether a ray(line) ...
11
votes
5answers
1k views

How to make a depth map from a 3D model?

Given a 3D .obj model, for example a rabbit. How can we make a depth map out of it? Any idea or help would be much appreciated.
11
votes
4answers
1k views

How to draw a higher-genus surface

NB: By higher-genus surface, I mean a closed orientable surface of genus at least 2. This question has come up before on math.SE, and even MathOverflow, but most posters suggested using either ...
11
votes
4answers
791 views

Is there a way to increase the smoothness of a cylinder?

I am using Cylinder to produce wide flat disks (in Mathematica 8). This works just fine except that the circular base of such a cylinder turns out to be really just ...
11
votes
3answers
1k views

How can I visualize 6 square matrices as a cube?

I have six square matrices of the same dimensions in a list, for example: ...
11
votes
6answers
496 views

How do I draw a polygon defined by a list of data points?

I am attempting to make a 3D model of a device defined by a list of {x,y,z} points, digitized from a 2D image. The z coordinate is defined in mma. What I tried so far: ...
11
votes
2answers
471 views

Map of United States as a 3D histogram

By combining the state data from here and the extrusion code from here I have managed to make prisms of the various US states such as However, the extrusion method looses information about the ...
11
votes
2answers
241 views

Boundary effect of Graphics3D object Tube[]

I draw a Graphics3D object of two tubes: Graphics3D[{Tube[{{-0.2, -1, 0}, {-0.2, 1, 0}}, 0.05], Tube[{{0, 0, -1}, {0, 0, 1}}, 0.05]}, Boxed -> False] And ...
11
votes
3answers
644 views

How to properly project a Graphics object consisting of line primitives

My problem starts from attempts at depicting overlapping lines of different thickness, i.e. ...
11
votes
2answers
883 views

Why is ListDensityPlot unable to plot datasets with extreme ranges

Consider the following dataset: data = Flatten[ Table[{x 10^-9, y 10^-9, x^2 + y^2},{x, -100, 100, 10}, {y, -100,100, 10}] , 1]; If I try to ...
11
votes
0answers
163 views

CDF Player - MMA9 - MMA10 oddities

I'm (slowly) building a WordPress site with some didactic simulation made with Mathematica. Users can run the simulations (on-line or off-line) with the free Wolfram CDF Player. One of the last ...
10
votes
3answers
295 views

Excluding a Region in ParametricPlot3D

Suppose I have a torus and a closed path on said torus: ...
10
votes
5answers
728 views

Randomly assigning color to Graphics3D objects?

I have a set of Graphics3D primitives (here, spheres) which I would like to assign either: One of a subset of colors, e.g. {Green, Red} A random color over some RGB interval Writing something ...
10
votes
4answers
1k views

Filling between two 3D surfaces

I know it is possible to create a filling in between two curves on a 2D plot, but is it possible to do the same in 3D? My attempt like this: ...
10
votes
2answers
747 views

How to create these famous surfaces in topology with the desired color effects?

It was said such real objects of famous topological surfaces were plotted by the cooperation between mathematician Richard Palais and artist Luc Benard, and published as the cover page of Science ...
10
votes
2answers
461 views

Is there a way to interactively read a point from a Graphics3D?

Suppose I have a tesselation, e.g. the Stanford bunny: bunny = Import["http://graphics.stanford.edu/~mdfisher/Data/Meshes/bunny.obj", "OBJ"] I'd like to be ...
10
votes
4answers
591 views

How to create Line Chart with real third coordinates?

I would like to generate something like 3D Line Chart in Excel. Like the following figure but including third coordinates. Example I have a set of 2D data combied with 1D spatial data. ...
10
votes
2answers
1k views

Coloring each face of a Cuboid with a different color

Is there a way to color each face of a Cuboid with a different color? I looked in the help but couldn't find anything. I found this Coloring the faces of a 3D ...
10
votes
1answer
330 views

Hexagonal Mesh on a 3D surface

I am new to Mathematica, and I am trying to create a 3D hexagonal mesh on a 3D surface. It is very similar to what was done in this post Create a torus with a hexagonal mesh for 3D-printing, but now ...
10
votes
1answer
578 views

Poor performance from Graphics3D

I wrote a game -- 2048,Some codes are from http://blog.wolfram.com/. My codes are in notebook downloads I added code so that the game can play in 3D form, but when I play it, I find that it is too ...
10
votes
3answers
1k views

Dashed mesh behind 3D object

I am trying to create a simple, almost transparent 3D sphere with a mesh that is made of solid lines if they are on the front surface (i.e. if they are directly visible) and of dashed lines if those ...
10
votes
3answers
2k views

How to make a tight crop of a 3d plot?

I like Mathematica, but it's syntax baffles me. I am trying to figure out how to minimize the whitespace around a graphic. For example, ...
10
votes
1answer
278 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 ...
10
votes
1answer
436 views

Outline around sphere

Is there an easy way to draw an outline around a sphere? Is there something like EdgeForm[] that will work? I'm looking for perhaps a thick red line; I'm making a ...
10
votes
1answer
103 views