Questions on the construction of 2D and 3D graphics through the direct use of primitives, directives, and functions. Include the graphics3d tag for questions specifically on 3D graphics. This tag is not to be used for basic questions on visualizing functions and lists using the various flavors of ...

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14
votes
2answers
456 views

Determine whether points lie within a cow

I would like to determine whether randomly-generated points ...
0
votes
1answer
41 views

How to merge two plots in Mathematica 8.0 in a column and then save the figure as a single pdf file?

I have defined two plots and then want to merge them into one so that I can save the figure as a pdf file into my computer. Here is MWE where I would like to merge two plots into one: ...
-5
votes
1answer
36 views

Calculating the top left corner in a 2d field [on hold]

Given I have a field with several rectangles like shown in the picture. A point with its x and y coordinates are given. The height(h) and the width(w) are also given. How can I calculate the top ...
2
votes
1answer
40 views

check content of a Matrix

I have a matrix which contain rotated ellipses and points, how can I check if the element in the position {i,j} is either a point or an ellipse? the code is a bit longer but the structure is like: ...
1
vote
1answer
41 views

Fastest way for data input into StreamPlot function

I'm interested in looking at graphing the phase portraits of 2x2 autonomous ODEs, and I'm using the StreamPlot function. Here is one simple example: ...
0
votes
1answer
27 views

Graphics, Import and Inset combined

I need to write a word on a figure, which I have saved as fig.pdf. 1) I import the pdf file to mathematica: a = Import["fig.pdf"][[1]]; 2) Following the ...
1
vote
1answer
56 views

Antialiasing points on a line?

I'm probably being stupid here, but I can't get my points to go in a smooth line: At this scale they should all equally cover the red line. I must be doing something wrong, anyhow I tried to use ...
48
votes
4answers
3k views
3
votes
2answers
119 views

GridLines for a coordinate system with a particular basis

Suppose that I use the vectors (2,1) and (-1,1) as a basis for $R^2$. ...
9
votes
1answer
136 views

Visualisation of the field of algebraic numbers in the complex plane

Hot to plot the field of algebraic numbers in the complex plane? In this picture, the color of a point indicates the degree of the polynomial of which it’s a root: red = rational numbers ...
1
vote
2answers
85 views

How to plot a lattice (2D or 3D) given a basis

I want a graphical picture of a lattice with basis such as $\{(1,1), (\sqrt{2}, -\sqrt{2})\}$. Does Mathematica already have a pre-made function that finds all linear combinations over $\mathbb{Z}$ ...
43
votes
2answers
3k views

An efficient circular arc primitive for Graphics3D

As many people have noted, the 2D graphics primitive Circle doesn't work in a Graphics3D environment (even in v10.0-v10.4, where ...
5
votes
2answers
467 views

Image Rotation, Line Symmetry

I'd like to import an image, superimpose it, reduce the opacity of the overlaid image, and then use a manipulate to rotate the top image to illustrate rotational symmetry. The image below is using ...
17
votes
3answers
481 views

How to compute the boundary of a group of ellipse efficiently?

Update1 I discovered that the bountary of a series of ellipses consists of the following three parts Part (I): the first ellipse's effective black-segment; Part (II): the effective ...
5
votes
1answer
139 views

Transcritical Bifurcation phase portraits

An example equation for a Transcritical Bifurcations is given by: $$\dfrac{dx}{dt} = f(x, r) = r x - x^2$$ In Mathematica, we can define the function as: ...
2
votes
1answer
121 views

Fractal plotting for the Collatz fractal

I have the following equation: f[z_] := 1/4 (2 + 7 z - (2 + 5 z) Cos[Pi*z]) I want to map this on the imaginary plane such that if it converges under iterations ...
3
votes
2answers
238 views

Mathematica Interpolation or approximation

I have lists of points X and Y. {1212,1216,1217,1219...}, {1,2,3,4,5,6...} I combine ...
0
votes
0answers
33 views

FindSpanningTree command doesn't work

I want to solve a network analysis problem by FindSpanningTree command. But it yields nothing: FindSpanningTree[G1] ...
6
votes
1answer
79 views

Visualize Pascal's triangle with the product of the terms in the $n$th row

How to make the following graphics by using Mathematica? What I tried: I used J.M's answer for the Pascal triangle ...
3
votes
1answer
65 views

How do I label points when using Graphics? [closed]

Let say I want to draw a point and label it. The command I use to draw points is Graphics[{Point[{0,0}], Point[{1,1}]}] This draws the points $(0,0)$ and ...
0
votes
0answers
29 views

How to use ListLinePlot to draw graph of a function vs another function obtained from NDSolve? [closed]

Using NDSolve I have found solution of two function $\phi(z)$ and $f(z)$. then I use ListLinePlot to find a plot of ...
11
votes
5answers
2k views

Beautiful dance of the Earth and Venus around the sun

I have seen very nice dynamic graphics created by users of Ma. I would like to get help whether the following graphics can be created using Ma. I was not able to create the dynamic picture here. ...
2
votes
1answer
104 views

Cannot combine GeoPosition polygons in version 10.4

I was using with Mathematica 10 for plotting different kinds of maps the function PolygonCombine. It seems that this fucntion has disappeared with the version 10.4? Here is a classical example for the ...
2
votes
0answers
33 views

Interpolating or “absolutising” symbolic sizes? [duplicate]

I often face the problem that none of the usual symbolic constants Tiny, Small, Medium, or ...
3
votes
2answers
126 views

Fixing text position in an animation

Following I have a simple animation with a variable displayed inside the plot. The significant digits of the variable changes as you run the animation which results in a smaller jitter on the text's ...
4
votes
2answers
236 views

How to make an octahedron 3-compound with holes?

I would like to remove facets from an octahedron 3-compound - like in the picture below. I tried to combine these two graphics: ...
5
votes
1answer
112 views

How to export a 3D circle as a single piece PDF vectorial object?

I need to export a circle drawn in 3D with a specific point of view to a PDF file. This is easy to do. However, the exported circle is made of tons of non-connected small bits. I need the whole ...
1
vote
2answers
106 views

How can I plot two concentric circles with a polygon inscribed in one and circumscribed about the other

So I am new to Mathematica still learning basic codes.. However I need help to become quicker in my research. Can anyone help me with the simplicit code to plot 2 concentric circles and a polygon of ...
1
vote
1answer
64 views

Plotting 3-vectors over a 3D lattice [closed]

I am trying to plot a magnetic structure, which is basically using Mathematica to read and plot a .dat file. In the file, each row which has six numbers, the first 3 represents the atomic postion, and ...
2
votes
2answers
326 views

Draw a circle through 4 points on parabola [closed]

I have two dynamic perpendicular parabolas: $y=ax^2+c, x=by^2+d$, which intersect in four points (the coefficients are chosen that way). There is a fact that we can construct a circle through these ...
1
vote
1answer
85 views
0
votes
0answers
42 views

How can I plot 2 concentric fixed circles with a polygon inscribed in one and circumscribed about the 2nd

Can anyone help me with the simplicit code to plot 2 concentric circles and a polygon of sides n (that I can manipulate) inscribed in one circle and circumscribed about the other. However I want the ...
1
vote
1answer
114 views
1
vote
0answers
42 views

Helmholtz-Hodge Decomposition

So I was recently getting familiar with the Helmholtz-Hodge Theorem, briefly (but decently) described by https://en.wikipedia.org/wiki/Helmholtz_decomposition and I was wondering whether there exists ...
1
vote
1answer
39 views

Plotting Elipsoids with large weight matrix

I'm running into some problems plotting 2D Ellipsoids with non-diagonal weight matrices -- they are not centered where they are supposed to be. I'm not sure exactly ...
2
votes
5answers
185 views

Plotting animated point on a polar plot

How can I animate a point on a polar curve? I have used Animate and Show together before in order to get the curve and the moving point together on the same plot, but combining the polar plot and the ...
3
votes
1answer
152 views

Drawing dynamical trajectories diagram in Mathematica

I've a Boolean gene regulation system composed of vectors(corresponding to cellular phenotypes). Their components are binary numbers such as $\{1,0,0,1\}$. A vector can change its statement in ...
1
vote
0answers
31 views

Fast Creation of Label Matrix for Use With ComponentMeasurements?

I am taking a lot of measurements from regions of interest in microscopy images and am finding that generating binary masks to use with ComponentMeasurements is rather slow (at least it's slow the way ...
1
vote
2answers
84 views

Point on the circle

How can I make a moving point on the circle with control? ...
1
vote
1answer
123 views

Speed Up Sampling of Perimeter of Polygon

I have a polygon whose vertices (points) are defined by some image coordinates that I have manually selected. The polygon is used to create a mask for a region of interest in a microscopy image. ...
1
vote
1answer
70 views
15
votes
2answers
2k views

Failure to export graphics by right-click when Notebook magnification is changed

Bug introduced in 9.0.1 or earlier and persisting through 10.4.1 or later When I try to export graphics as PNG, JPG and other rasterized formats using the right-click and choosing ...
3
votes
5answers
140 views

ListPlot with colors

Let's create some sample data n = 100; d00 = Table[{RandomReal[{-1, 1}], RandomReal[{-4, 4}], RandomReal[{-1, 1}]}, {i, 1, n}]; Now I want the following: create ...
11
votes
2answers
198 views

Is it possible to get the (x, y) position of nodes in a `Graph`?

Given a graph... RandomGraph[{20,40}] ...is it possible to retrieve the (x, y) coordinates at which the nodes are drawn? ...
2
votes
1answer
139 views

Vector graphics in Export for Video rendering

I am trying to generate a vector graphics video in Mathematica. I stumbled upon SWF format (PNG are raster images which I'm not interested in). SWF format works fine for me but the axes and the ...
2
votes
2answers
102 views

How to copy Coordinates of “Get Coordinates” in Figure?

I am trying to reproduce the answer here about Recovering data points from an image. I click the figure and press "Get Coordinates". I would like to copy the four coordinates by CTRL-C and then paste ...