{3d} is about three-dimensional content, e.g., images and drawings.

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3
votes
1answer
108 views

sphere with waves on the surface

I am working on surface waves on a curved surfaces and I need to draw a 3D sphere with sinusoidal waves on its surface, waves should start from the top and end in bottom, I have no idea how to do it. ...
3
votes
1answer
115 views

problem at drawing 3D square for right angle with tikz, pgfplots

I'm drawing a 3D square for right angle following http://tex.stackexchange.com/a/163384/14423. That works fine, but I try filling that square and the results isn't the spected: \documentclass{memoir} ...
5
votes
1answer
160 views

TikZ — Intersection line of a cone and a helicoid, too many lines

Here is the image I'm working on: it's an archimedean spiral, shown as an orthogonal projection of an intersection line of a cone and a helicoid. \documentclass[12pt, border=0.5mm]{standalone} \...
4
votes
1answer
206 views

Drawing right ascension and declination on the celestial sphere

I am trying to draw the celestial sphere and can't figure out how to draw arcs around the outer surface of my sphere. I want to draw a red arrow starting from the vernal equinox towards right under ...
3
votes
1answer
110 views

tikz, pgfplots, different colors for negative/postive z-values in addplot3

I want to color all points with negative z-values in the plane below red and all with positive z-values cyan!80. I searched for an hour now, but have no clue how to do it. Any suggestions? \...
3
votes
1answer
336 views

Define a \path like command in Tikz to draw 3D tubes

Is it possible to define a new command in TikZ which will use the same arguments as the \path [line] (node1) -- (node2); command, but which draws instead a 3D tube?
4
votes
1answer
237 views

How draw a cylinder with 3 balls?

I need to draw a cylindrical box with three ping-pong balls, as below But I can only do the cylinder. I can't get the balls in: \documentclass{article} \usepackage{graphicx} \usepackage{tikz} \...
4
votes
2answers
162 views

rotate node in 3D

I am trying to draw this 3D shape I draw the 4 arrows and the cylinder, but can't rotate the arrows in 3D to put them on the top. \documentclass{standalone} \usepackage[usenames,dvipsnames]{xcolor}...
3
votes
1answer
531 views

How to draw 3d molecules with TikZ?

Is it possible to draw molecules in 3d with TikZ like in this picture?
7
votes
1answer
269 views

Render stl files in asymptote

I want to draw a propeller in 3D for my fluid dynamics lecture. I found a 3D model of a propeller that can be downloaded as a stl file. I found a python library numpy-stl that can read and draw, with ...
2
votes
0answers
59 views

pgfplots 3D plots size versus 2D plots size

I wanted to create a 3D plot but it's not possible for me to set the right size. Should I try out until I find the right values for height and width for the 3D plot or is there an easy way to find ...
6
votes
1answer
185 views

3d PGFPlot with custom mesh and polygon

I am trying to reproduce this figure as closely as possible in PGFPlots (the original was made with a combination of gnuplot and Illustrator): The 3D surface is f(x,y):=x^2 y^2. I am struggling a ...
2
votes
1answer
71 views

Calculation of coordinates in 3d with the 3dstructuralanalysis library

The tikz library structuralanalysis provides the pointcommand. %------------------------------------------------ % point %------------------------------------------------ % \point{...
9
votes
3answers
556 views

Plotting intersection of a sphere with a plane

I've made the following code: \documentclass[parskip]{scrartcl} \usepackage[margin=15mm]{geometry} \usepackage{tikz} \usepackage[english]{babel} \usetikzlibrary{arrows} \begin{document} \begin{...
2
votes
1answer
48 views

Wrong reference for fill and comb options

I'm trying to draw a sine in xy plan, fill it with some color, and draw some arrows (dirac) to show it can be considered as a vector. I tried this but the reference of the arrows is 0 and not the x ...
3
votes
1answer
146 views

Rotating axes in 3D for better viewing planes

I have this code: \begin{figure}[h!] \centering % Generat amb TikZ \begin{tikzpicture} % Note: the points have coordinates (x,z,y) \coordinate (O) at (0,0,0); ...
11
votes
3answers
2k views

plot 3d graphs of functions defined implicitly

How can I plot 3d graphs of functions defined implicitly (quadratic forms, for Linear Algebra course notes -- I'd like to include lots of examples)? As far as I can see it is not possible with ...
5
votes
1answer
233 views

Setting camera view within Sketch

I'm using sketch to generate 3D tikz graphics, but the sketch documentation is not helpful. For example, here is some sketch code: def v1 ( 0.000, 0.000, 1.000 ) def v2 ( 0.894, 0.000, 0.447 )...
17
votes
4answers
2k views

Drawing intersecting 3D surface plots

I'm attempting to draw six semi-transparent intersecting spheres of different colors---two on each axis x, y, z and all joining at the origin---as shown in the figure below. Note how all the spheres ...
43
votes
2answers
3k views

How to draw spherical geometries with TeX?

I am working in the field of Astrodynamics and have to do many computations using spherical geometry. To visualize some of the concepts I would like to prepare drawings of things like spherical ...
2
votes
1answer
388 views

Beamer class and U3D Views

I want to switch 3D views in my presentation. I have read in the movie15 package that it is possible with the command: (dice example from movie15.pdf page 16) \movieref[3Dviewindex=N]{dice}{Click ...
7
votes
2answers
1k views

spherical coordinates in tikz 3d

Can we specify direction in spherical coordinates? I know we can do polar (angle:radius) but what is we are using tikz-3d and want to specify (r, theta, phi) where theta is the azimuthal angle?
2
votes
0answers
275 views

Draw an intersection of two planes

I use this code for producing the intersection of two planes: \begin{figure}[h!] \centering % Generat amb TikZ \begin{tikzpicture}[x={(240:0.8cm)}, y={(-10:1cm)}, z={(0,1cm)}, ...
1
vote
0answers
147 views

Sphere Intersection using Tikz

I found this example here of two intersecting spheres, have reproduced a couple Tikz spheres that I found here which is the code below. I however would like to know how to get these two spheres to ...
5
votes
2answers
546 views

Draw a hemisphere (or just a segment of a sphere)?

Drawing a sphere is easy enough using the ball shading, or some more refined form as in How to draw a shaded sphere, but I would like a way to shade only one half (or even just slices). I currently ...
31
votes
2answers
7k views

Draw a bivariate normal distribution in TikZ

For a small class I want to draw a bivariate normal distribution and show where the means from the two variables meet in the space. Has anyone done this in TikZ?
40
votes
4answers
7k views

How can I draw an arc from point A -> B on a 3D sphere in TikZ?

I'm basing myself on http://www.texample.net/tikz/examples/spherical-and-cartesian-grids/ and now I need to add a arc from point P to Q. What I was able to get so far: \begin{tikzpicture}[scale=1,...
9
votes
4answers
2k views

Helix on a cylinder

I want to plot geodesics on a cylinder. These are straight lines, circles or helices. I can plot the first two, but I don't know how to draw the helices. To be precise, I would like to know how to ...
3
votes
1answer
421 views

Solid of revolution about arbitrary axis

I'd like to rotate the region between y=cos(x) and y=x^2 - 0.25*pi^2 about the line x=pi. How to do this? So far I have only managed to rotate around the x-axis: \documentclass[letterpaper]{article} \...
2
votes
1answer
91 views

Confusion about the coordination system of 3D

I am drawing a 3d framework. I use something like (xyz cs:x = 12, y = 6, z = -6) to specify a coordination. However, the figure I produced looks ugly. Especially, the coordinations at the corners of ...
4
votes
1answer
363 views

PGF: draw longitudinal arcs in 3D axis environment

I want to draw a sphere, similar to the first one here: http://www.texample.net/tikz/examples/map-projections/ But - of course - different. This is, what I did so far: The dashed lines are behind ...
4
votes
1answer
163 views

Artificial Line in PGFPlots 3D Parametric Plots?

I just tried to make a 3D parametric plot of the spiraling helix r(t) = {t, cos(2*pi*t), sin(2*pi*t)} using PGFPlots, but there seems to be an extra line connecting the points r(t_min) and r(t_max). ...
5
votes
1answer
122 views

Properly drawing unit normals (orientation and length) in TikZ 3D

I'd like to visualize some points in 3D together with the connecting triangles and the unit normals of these triangles (cross product of the difference vectors between the points) together with the ...
2
votes
0answers
127 views

Asymptote: Intersect Line with Plane, z-order not correct

Hello TeX Stackoverflow! I have a question about 3D plotting in Asymptote. I want to produce a very simple 3D sketch of a line intersecting two planes, but I have trouble making it look "realistic": ...
4
votes
1answer
141 views

Best way to do 3d transluscent planes

I am trying to replace a diagram I made in powerpoint with something that I am making in tikz-3dplot. The diagram should look similar to this The problem that I'm running into is that the lines ...
7
votes
4answers
906 views

How to make a 3D Lattice?

How could I create a lattice like this: In 3D, with the ability to change the x,y and z spacing independently of each other? Any solution using any LaTeX program would be great! I have tried to do ...
3
votes
1answer
283 views

Can we color and rotate a cube?

I want to present a cube to illustrate, and I want to color four of its sides. The colors will be blue, red, green and yellow; the two remaining sides should be clear or white or, perhaps, black. In ...
7
votes
3answers
718 views

TiKz. Angle between two vectors and a projection

I'm having trouble to draw something with TiKz. What I want to draw I think is simple: SIM is a vector in the YZ-plane with a Beta = 38º, source is just a random vector with positive x and y ...
0
votes
1answer
257 views

Can I add 3D objects as subfigures (using movie15)

I have faced one stiff problem that when I try to add four 3D plots (2 rows x 2 columns) in my beamer by using subfigure approach, I fail! This is my minimal example: \begin{frame} \begin{figure}[t] ...
9
votes
1answer
456 views

3D arrows with TikZ

Asymptote does give 3D arrows when drawing three dimensional figures (they even have shade!). Could we fake it with TikZ? Here's an example, manually written, with just one arrow worked: \...
3
votes
1answer
127 views

Customized axes in tikz-3dplot, \tdplotdefinepoints not working as expected

I am using tikz-3dplot to draw vectors and arcs in 3d space. In the following example I am drawing two pictures. The code to draw the vector and the arc is the same in both pictures. However, picture ...
11
votes
2answers
462 views

Tikz weird 3D look

I've got a slight problem with the way TikZ draws my 3D figure. The edges of the top and bottom of the cylinder in the picture don't seem to match correctly even though I don't think I made a mistake. ...
7
votes
1answer
232 views

Drawing functions on spheres

In a paper, I have a class of functions S1→S2 depending on a real parameter t>0, and I would like to represent some of them on the sphere as curves to illustrate their behavior as t goes to 0, ...
6
votes
1answer
208 views

Spiral on a truncated cone

I need to plot a spiral around an inverted truncated cone, starting and ending at the centre of both bases. Something like this: I've searched and found a similar solution, but for cylinders only: ...
2
votes
1answer
170 views

Asymptote error in plain_Label.asy

I'm trying to compile the Asymptote script fig0090.asy from http://www.piprime.fr/files/asymptote/graph3/index.html by running asy fig0090.asy in the command line but I get the error /usr/local/...
2
votes
2answers
379 views

Representing general transformations on a 3D grid using TikZ

I have a cuboid made from unit squares which in 2D looks like the following: Considering a 3D version of this (i.e. a cuboid). I wanted to use Tikz to demonstrate some of the possible deformations ...
6
votes
2answers
132 views

Three dimensional Regression Plan with Residuals

In R, I can make three dimensional Regression plane with residuals with the following command scatter3d(prestige ~ income + education, data=Duncan) with scatter3d function from car R package. I ...
4
votes
1answer
473 views

Shaded 3D ellipsoid with pgfplot

I'm trying to display a shaded 3D ellipsoid with axis labels with PGFplots. So far I achieved this. \documentclass{standalone} \usepackage{tikz} \usepackage{pgfplots,tikz-3dplot} \begin{document} \...
3
votes
1answer
102 views

Edge thickness of the faces in a surface plot

Is it possible to change the drawing thickness of the edges of the faces in a surface plot in PGFplots? For example, in the minimum working example \documentclass[margin=1cm]{standalone} \usepackage{...
2
votes
1answer
131 views

Draw sphere and add scattered data with color information [closed]

My goal is to plot 3D data (x,y,z coordinates) such that a certain path on/inside a unit ball is illustrated. Since the path will not only be on the surface of the unit ball I have to encode the norm ...