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

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8
votes
3answers
1k views

Convex hull of a 3D object?

I am trying to find a convex hull command for a Graphics3D object. Does it exist in Mathematica? ...
7
votes
2answers
859 views

How can I mesh a solid cylinder with triangular or tetrahedral elements

I need to plot triangular mesh on a cylinder. However the function Cylinder doesn't have a mesh option. By using ...
9
votes
5answers
650 views

Randomly assigning color to Graphics3D objects?

I have a set of Graphics3D primitives (here, spheres) which I would like to assign either: (1) One of a subset of colors, e.g. {Green, Red} (2) A random color over some RGB interval Writing ...
9
votes
3answers
852 views

How do I remove a bounding box (i.e. set Boxed -> False) after rendering a 3D graphic?

I have an old notebook with an output from Graphics3D, however, I've lost the data behind the output and recomputing it would take days. I simply want to remove the bounding box Mathematica usually ...
7
votes
2answers
3k views

Axes Origin & Labels in 3D Plot

I'm looking for a way to have the axes at the origin in a 3D plot and to label the (x,y,z) axes in the usual way---with x near the end of the drawn portion of the x axis, y near the end of the drawn ...
3
votes
1answer
457 views

Radial Random Walk

I'm trying to generate a spherical distribution of radial random walk points in 3D space. The following code works, but the random walk lines aren't radial. Why ? Where is my mistake ? ...
4
votes
1answer
193 views

combined 3D graphics with no interface

I'd like to combine several 3D graphics, but the interface, indicated by the arrow in the figure attached between them is alway present. How to eliminate it? Thanks in advance. Here is my example: ...
13
votes
1answer
386 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 ...
5
votes
1answer
242 views

Synchronizing manual rotations for multiple Graphics3D outputs?

Say I make a set of three Graphics3D images, here of three different cones, by evaluating: ...
2
votes
1answer
418 views

How do I add a color bar to a 3D plot?

I tried Plot3D[Exp[-x^2 - y^2], {x, -2, 2}, {y, -2, 2}, ColorFunction -> (ColorData["TemperatureMap"][#3] &), PlotLegends -> Automatic] in an attempt ...
4
votes
3answers
189 views

Text Annotation Disappears in Wrapped 3D Graphics

In a 3D graphic, if I wrap a figure, for example, ...
1
vote
0answers
133 views

Plotting an array of data onto a sphere [duplicate]

See the link to plot at the bottom of this post, it is a function of the spherical coordinates theta and phi. It is generated by MatrixPlot of an Array of data. I would like to plot this onto a sphere ...
1
vote
1answer
165 views

Colors not showing in Graphics3D

The following code works, except that the colors aren't showing in the output. Wh? I probably made a trivial mistake, but I'm yet unable to find it. ...
4
votes
1answer
268 views

Remove the white margins of a Graphics3D figure

If the option Boxed is set to be False in Graphics3D, additional white margins may appear as ...
4
votes
2answers
618 views

Transparent Cylinder with Dashed Edges only

I would like to have that kind of cylinder with Dashed edges (including the bellow inner ring): I've been trying that: ...
8
votes
2answers
753 views

OpenSCAD like functionality with Mathematica?

I keep seeing reference to use of Mathematica as a CAD tool (for instance: http://www.makerbot.com/support/guides/design/). I'd like to use it as such if feasible, but I'm having trouble locating ...
10
votes
3answers
913 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 ...
4
votes
1answer
231 views

Manipulating a Graphics3D output with a large number of geometric primitives

I'm attempting to view and rotate a Graphics3D object with a very large set of geometric primitives ($\approx 10^6$ objects such as spheres or lines), and everything is functioning very slowly. Are ...
10
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 ...
2
votes
2answers
388 views

Solving and plotting ODEs while varying one of the initial conditions

How can I vary an initial condition in the numerical solution of a system of ODEs and then make a 3D plot of the solution space with that condition as one of the variables. ...
6
votes
2answers
1k views

Calculating a minimum bounding box for a set of 3-space coordinates / spheres

I have a set of 3-space coordinates for the atoms of a molecule (I could also transform them into spheres with radii corresponding to the atoms they represent). I would like to place this molecule ...
1
vote
1answer
340 views

How do I draw multiple 3D shapes defined by lists of points?

I'm attempting to draw $N$ cones on a 3D object, where each cone is specified by a pair of 3D coordinates. The first coordinate is for the cone's base, the second one for the cone's apex. Here, I ...
3
votes
2answers
274 views

How can I fill an entire Building with transparent points? [duplicate]

I am posting the same code found at an earlier question, although the concept here is totally different. The following code corresponds to a building-shaped structure. ...
3
votes
3answers
344 views

How can I fill a wire-frame structure with gas in a Graphics3D drawing?

I am very poor at visualization. I want to make a transparent "building" filled with gas. I wrote the following code for the building and it's fine. ...
2
votes
2answers
331 views

How to draw Graphics3D items with straight border lines?

I want to make a Polygon with straight border lines. For that purpose I wrote the following code, but it doesn't show straight borders. ...
10
votes
1answer
730 views

How do I generate the Mathematica Version 2 Spikey in Mathematica?

As we all know, Mathematica changes its logo design with every new version, while still maintaining the dodecahedral/icosahedral motif. I have been able, through much digging around, to finally ...
0
votes
2answers
2k views

How can I make a transparent 3D Rectangle?

Sorry, I didn't mentioned clearly in my earlier post. I want to build a transparent Rectangle, within which I want to diffuse a certain color of my choice which is ...
5
votes
1answer
283 views

How should a beginner figure out the context to use an expert answer provided on this forum?

J.M.'s answer to Extruding along a path related to custom cross-sections appears to answer a question I have been puzzling over for some time. I am interested in producing a tube with the stadium or ...
122
votes
1answer
23k views

Mathematica Minecraft

Some time ago I asked myself: with all these great graphics and interactive capabilities of Mathematica, what kinds of 3D games can be implemented in it? And the answer which came to mind is ...
23
votes
2answers
4k views

What are the possible ways of visualizing a 4D function in Mathematica?

I have a function $F$ that maps the xyz space to a set of reals, more clearly: $c = F[x,y,z]$ Where $c$,$x$,$y$ and $z$ are reals. What are the possible ways of visualizing this 3d function in ...
10
votes
1answer
255 views

Forming Cone with Tube fails to work in version 9.0.1

I use two different radii in a Tube expression to draw a cone. I know for a fact that this worked in Mathematica 8, but when I reevaluated my code in versio 9.0.1 ...
1
vote
2answers
535 views

Projecting image or contour plot on xy-plane of Histogram3D? [duplicate]

I've generated a simple 3D histogram, where the x-y coordinates corresponding to the "location" of an event defined on a simple 160x160 grid, and the z-axis height is simply the count of events that ...
9
votes
2answers
325 views

Is there a way to programmatically set global preferences?

Can I set global preferences that are accessible via "Edit"->"Preferences" programmatically from within a notebook? As learned from this question, turning off anti-aliasing can make a huge difference ...
5
votes
1answer
787 views

axis label and ticks alignment of ListPlot3D and Histogram3D

I have a question on axis label alignment of ListPlot3D and Histogram3D. These labels are not aligned with the axis of the view, but only horizontally. I have tried very hard to align them manually, ...
3
votes
2answers
277 views

Represent Plot Scale with an offset

I want to know how to represent the axis on my 3dplot with a scaled offset. Please see the image below, I just want to show in the plot as {X-Axis*0.1} and {Y-Axis*0.1} ...
3
votes
0answers
115 views

How can I truncate only a single vertex of a polygon?

One can truncate all the vertices of a polygon at once with Truncate. I want to do exactly that -- but only on a single vertex. Is this possible with Mathematica 9? ...
1
vote
1answer
685 views

Import Excel sheet into 3D array?

I have an excel spreadsheet that I would like to plot in a 3D graph using mathematica. The X and Y values are the location of the cell, and the Z value is the number of the scale. How can I import ...
20
votes
1answer
385 views

What is PointForm?

I stumbled across a function called PointForm but the only documentation I can find is the pop-up line offered by autocomplete, which contains the same information ...
7
votes
3answers
394 views

Thick polygons in Graphics3D [duplicate]

I have a polygon that I want to thicken with thickness h. How do I do this? FaceForm is evil and says: The directive ...
16
votes
3answers
835 views

How to get the real PlotRange using AbsoluteOptions?

The problem in general involves the unreliable behaviour of AbsoluteOptions when option values are implicitly specified (e.g. ...
4
votes
1answer
255 views
5
votes
2answers
401 views

Generating stripes on a polygon

I want to create a Graphics3D polygon that has stripes on it. My code is ...
13
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 ...
20
votes
2answers
645 views

How to get shadows in Graphics3D?

It was a shock to me when I found that in Graphics3D a surface is always transparent to the light sources: ...
17
votes
0answers
500 views

How to improve these WASD + mouse look 3D controls?

Insipred by this question and the corresponding answer I've written a code for full-screen exploration of 3D scenes using standard WASD and mouse look controls. Here it is. ...
4
votes
1answer
279 views

How can I colorize an imported model?

How can I colorize an imported model from for example 3ds max? I'm trying to find the way to colorize a 3D plot from an imported model with something like this: ...
27
votes
2answers
6k views

3D heatmap density plot

I have a set of data that looks like {{x1, y1, z1}, {x2, y2, z2}, ...} so it describes points in 3D space. I want to make a heatmap out of this data. So that points ...
5
votes
1answer
578 views

Drawing a torus not bounding a solid torus

I am trying to make a "pretty" picture of a torus in $\mathbb{R}^3$ which does not bound a solid torus. The standard way of constructing such a thing is to first take a non-trivial torus knot: ...
0
votes
2answers
424 views

Simple 3D graphic

How can I make a simple 3D graphic as in the following image? I know it is simply a sphere and a circle with several joining lines but I dont know how to make such simple one. I can use ...