For questions specific to the Graphics3D command and related 3D graphics functionality.
8
votes
1answer
140 views
FindClusters for 3D Pancake/Platelet Shapes
I'm looking to properly cluster a dataset of roughly 3 million data points in 3-space. The shapes form closely spaced "clusters" that resemble pancakes.
Here is a downsampled dataset:
...
8
votes
3answers
238 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 ...
8
votes
1answer
756 views
Construct 3D image from multiple 2D images
My goal: How to (1) construct 3D image for visualization.
(2) how to write 3D array or image into binary raw file.
Is there a way to accomplish this in Mathematica?
Alternative_Answer for: ...
7
votes
3answers
314 views
7
votes
3answers
233 views
Generating a “flare” effect in Graphics3D?
I'm attempting to indicate that there is a point-source of light at some position in a Graphics3D-generated image. Is there any built-in tool to do this? My patch-work solution thus far has been to ...
7
votes
2answers
225 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 ...
7
votes
2answers
359 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 ...
7
votes
1answer
420 views
How to render a 3D tubular graphics from a 2D image path
Question: Is it possible to create a tubular 3D image like Extruding along a path
using "Tube" function in mathematica for following images?
Image (1)
Image (2)
Thanks
I have been ...
7
votes
3answers
224 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 ...
7
votes
2answers
75 views
How to show wireframes on imported Object / Mesh (.obj file)
I've managed to import a Wavefront (.obj) file and store it in a variable like so:
...
7
votes
1answer
173 views
7
votes
2answers
181 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 ...
7
votes
1answer
447 views
Construct a simple mesh or tetrahedral mesh from 3D image surface
I have a 3D Y-Shape hollow tube, not so good surface.
Import["http://dl.dropbox.com/u/68983831/tube02.vtk", "Graphics3D"]
I tried to use following vertex data ...
7
votes
0answers
217 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.
...
6
votes
3answers
919 views
Animate ParametricPlot3D for two different parametric equations
I want to write a computer program to generate 3-D plots (with x-y-t axes) to demonstrate the evolution of the two missiles in the following case:
i. $x = 100t$, $y = 80t-16t^2$ for $0\leq t\leq 5$ ...
6
votes
6answers
293 views
How do I draw a hemisphere?
I want to draw a solid or partially transparent hemisphere above a partially transparent cuboid object in Graphics3D. However, I do not know how to do this s.t. only half the sphere is drawn. Here's ...
6
votes
2answers
253 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?
...
6
votes
2answers
153 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 ...
6
votes
2answers
98 views
Projecting Reference Lines in a SmoothHistogram3d Surface
What is the best way to draw a path (red color, dashed) along the surface of the smoothHistogram3D. Assume the paths desired to be the X=0 and Y=0 Axes.
...
6
votes
2answers
278 views
Plotting All Possible Points Belonging to a Group Orbit
Given that $$X = \{(x,y,z) \in \mathbb{R}^3 |\, x^2 + y^2 + z^2 - 2(xy + xz + yz) = k\}\,,$$ where $k$ is a constant. Also given that a group $G$ is represented by $$\langle g_1,g_2,g_3|\, g_1^2 = ...
6
votes
2answers
337 views
Finding concave hull for separated small clusters
Data :
data3D = Import[file, "VertexData"];
Graphics3D[Point[data3D]]
How to find concave polygon for separated small clusters.
6
votes
1answer
250 views
Color linear interpolation of ParametricPlot3D
I am looking for any ideas about how to colorize an ellipsoid with a custom gradient style or by a Blend function. I would like to colorize ellipsoid as follows:
...
6
votes
3answers
404 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,
...
6
votes
2answers
246 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 ...
5
votes
3answers
315 views
How can I stop the blinking when rotating a Graphics3D? [closed]
I wrote a function interactiveDesign that returns different Graphics3D items in a list. Then I call the function ...
5
votes
1answer
253 views
How can I model composite 3D structures?
I know that Mathematica isn't built to model 3D, but most of my models are equation-defined so here's my question: is it somehow possible to combine ad-hoc 3D objects as well as ...
5
votes
2answers
265 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 ...
5
votes
1answer
258 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 ...
5
votes
2answers
186 views
Generating stripes on a polygon
I want to create a Graphics3D polygon that has stripes on it. My code is
...
5
votes
2answers
671 views
How to process .vtk file
I want to extract the cluster of points inside 3D box, is there any way one can do this in Mathematica?
5
votes
3answers
159 views
Combining Image3D and Graphics3D
I want to combine an Image3D and a Graphics3D using Show. Here is the code:
...
5
votes
2answers
226 views
three-dimensional graphic objects that are not simple cuboids
I am trying to draw some graphics with Mathematica. The objects I want to draw are just a little bit more complex than a cuboid -- the difference being that the top and bottom faces are of different ...
5
votes
1answer
335 views
How does one draw a parallelepiped in Mathematica?
I'm a bit new to the application, and I'm not sure how to draw a parallelepiped in Mathematica.
5
votes
1answer
246 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:
...
5
votes
1answer
255 views
Exporting a 3D plot into a 3D viewing format and axis scaling
I've been trying to export a Plot3D into an X3D (JVX, VRML) file using the Mathematica's Export function. The problem is that when the PlotRange is large compared to the other two dimensions the ...
5
votes
2answers
225 views
ListPointPlot3d to visualize points close to a manifold
I have a large set of points that are close to manifold which I want to show in a ListPointPlot3D. Using part of the data set illustrates this
there are fewer ...
5
votes
1answer
177 views
Histogram3D frame ticks with bin text labels rendered in x-y plane?
Is it possible in Histogram3D to substitute frame ticks text labels and have the layout in x-y plane?
Starting with a ...
5
votes
1answer
157 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, ...
5
votes
0answers
284 views
How to map rotate, pan, zoom to manipulate controls
I am wondering if there is a way to restrict the motion of the rotate mouse cursor in when moving around a 3d plot.
For example, I want the y direction of the cursor to correspond to pulling the z ...
4
votes
4answers
150 views
How can I randomly color 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 ...
4
votes
2answers
74 views
Efficient drawing of convex polyhedron given a set of points [duplicate]
I have a set of points in the 3D space and I want to draw the bounding convex polyhedron of those points. A very naïve solution would be to draw a triangle between every three points:
...
4
votes
3answers
98 views
Text Annotation Disappears in Wrapped 3D Graphics
In a 3D graphic, if I wrap a figure, for example,
...
4
votes
2answers
183 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:
...
4
votes
4answers
164 views
How can I fill a curve in ParametricPlot3D?
I'd like to fill a curve in a ParametricPlot3D in the same way as I might with ListPointPlot3D; i.e.,
...
4
votes
1answer
86 views
4
votes
1answer
612 views
Rotating 3DPlot into animated gif
I'm trying to make an animated gif of a 3D plot by rotating the plot in its middle, around a vertical axis.
I used the tricks gave by F'x and Heike in this thread autorotating 3D plot but I ...
4
votes
1answer
247 views
How to create 3D architectural models in this shape with interactive faces?
I am a non-technical person in the imageProcessing side,so I don't have any idea how can I make polygon in the below shape...
the above polygon is a 3D ...
4
votes
1answer
108 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 ...
4
votes
1answer
75 views
“Show” with Manipulate runs fine normally, but gives errors as a CDF
I've simplified my code to what can reproduce my error. Basically, I have two lines:
...
4
votes
1answer
176 views
Rough edges plotting a surface
I'm trying to use SphericalPlot3D to create some images of a surface but I get some rough edges on the surface around the boundary. However, after rotating the ...
