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 ...

learn more… | top users | synonyms

9
votes
1answer
479 views

How to restrict the mouse cursor to stay within a box?

I'm trying to use Mathematica to write small games, and I find that it would help to restrict the player's mouse into the game window (just like other games do). Is there any way to achieve this? ...
30
votes
4answers
4k views

Creating a 2D meshing algorithm in Mathematica

As what is proving to be a difficult, but entertaining task, I am attempting to adapt a 2D meshing algorithm created for MATLAB and port it to Mathematica. I understand meshing functions already exist ...
0
votes
0answers
21 views

change markers to arrows using ListLinePlot [duplicate]

I'm trying to plot temporal data using ListLinePlot, where the first entry is the first point in time, second entry is next point in time, and so on. I'd like to replace the markers with arrows, in ...
9
votes
3answers
94 views

Grid changes FrameTicksStyle font size

I have a contour plot that I'm trying to organize into a grid using Grid. But Grid changes the ...
1
vote
0answers
45 views

Combining Manipulate and NDEigenvalues [closed]

I think there may be a quick solution to this problem which I can't seem to fix at the moment. The question is how do we eliminate the error in the following ...
8
votes
1answer
450 views

How to create a Poincaré disk type kaleidoscope in Mathematica?

Creating a kaleidoscope in Mathematica is not a new topic at all, examples can be found from the links like Wolfram reference and Wolfram demonstrations. My question is how to create Poincaré disk ...
10
votes
1answer
272 views

How to solve for the intersection points of two ellipses?

I have a parametric equation of two ellipses as follow $\begin{cases} x=a_1 \text{sin$\theta $}+b_1 \text{cos$\theta $}+c_1 \\ y=d_1 \text{sin$\theta $}+e_1 \text{cos$\theta $}+f_1 \\ ...
0
votes
0answers
33 views

How to put n circles on a sphere [duplicate]

I have a piece of code that generates a circle on a sphere, but the problem is, this code creates only one circle. How can I change it in order to create n circles on the same sphere? Do I have to put ...
10
votes
3answers
259 views

Custom edge style (e.g. brush stroke, writing ink, etc.)

I would like to draw a graph with Mathematica in such a way that it looks like a handmade drawing or painting. To be more precise, is there a way to set a custom edge style such that it looks made ...
11
votes
1answer
140 views

HighlightImage does not work consistently with Line

Bug introduced in 10.2, persisting through 10.3 HighlightImage is supposed to work with graphics-primitives like Line and ...
15
votes
2answers
494 views

How to generate a closed B-spline curve?

I wrote a function called deBoor using the Cox-de Boor algorithm to generate a B-spline curve. ...
4
votes
1answer
619 views

Isomorphisms for graphs with loops and multiple edges

I am working with graphs with multiple edges and loops, and I want to eliminate all isomorphic graphs from a long list I've generated. The FindGraphIsomorphism ...
3
votes
1answer
104 views

Integration of angular distribution along cartesian axis

I am plotting an anisotropy distribution function as color coding on the surface of a unit sphere with this code: ...
7
votes
3answers
214 views

Dynamically transform one Graphics to another

I would like to have two Graphics objects displayed side by side such that: they are mirror images of each other if I change the left-hand one interactively using ...
19
votes
3answers
1k views

Approximating an ornamental curve

How do I go about approximating this ornamental curve? Note variable thickness typical in calligraphy. Handbook and Atlas of Curves by E.V. Shikin (1995) contains many directions, including curve ...
0
votes
1answer
54 views

Adjusting components of the MatrixPlot

I have the following code which yields the figure attached: ...
8
votes
2answers
300 views

How can I use words/letters as pixels in an image?

I'd like to take the text of a novel or whatever and arrange it in a way that forms an image. Essentially recreating these works from Postertext. . I'm mostly looking for ideas regarding a ...
1
vote
2answers
113 views

Ploting horizontal lines in a ListLinePlot?

Hello i have made a graph with a oscillating behavior but i need to highlight the maximum value of the oscillation because i will use that value like a threshold and I need to put a horizontal line in ...
2
votes
2answers
83 views

mesh vertex coloring

So I created a mesh like this: mesh2 = ToElementMesh[FullRegion[2], {{1, 10}, {1, 10}}, MaxCellMeasure -> 1.]; and want to plot it, coloring the squares: ...
7
votes
0answers
89 views

Why is 13 the smaller height dimension of a Graphics?

It seems that you cannot get a Graphics image with a height dimension less than 13. Trying to draw something and then asking for the ImageDimensions of the resulting Graphics, you will get three ...
4
votes
2answers
152 views

How to take something from DelaunayMesh and similar family of functions

I was looking at this question here and I tried the suggested idea by Anton Antonov to use DelaunayMesh It will look like this: ...
13
votes
2answers
294 views

Weird behaviour when using Scale, Rotate in Graphics

Bug introduced in v8.0.4 or earlier and persisting through 10.3.0 (Edited to simplify drawing) I have a drawing of two tangent circles: ...
13
votes
1answer
325 views

Raster to Image conversion problem

Bug introduced in v9 or earlier and persisting through v10.3.0 There are 3 ways to convert a Raster into an Image : only 1 ...
13
votes
3answers
895 views

PDF exports of ArrayPlot's are fuzzy (OS X)

This is now fixed in version 10.3. The problem is present up to version 10.2 only. [The following problem occurs on OS X; I don't know if it also occurs with other OS's.] If I produce a ...
13
votes
0answers
197 views

Is there any way to export vector graphics with shading?

This has irked me for a while as I really feel its a significant shortfall in Mathematica's abilities but maybe I am missing something. I would like to export simple graphics with shading in a ...
0
votes
1answer
86 views
1
vote
2answers
177 views

Plot $\arg(z)$ in an Argand diagram and display the angle

I'd like to ask you about the way to show the $\arg(z)$ annotation about the angle. My point is to show $\frac{2\pi}{3}$ and $\frac{5\pi}{6}$ on the image. What I mean: Is there any way to ...
1
vote
2answers
1k views

Cubic Splines Functions

I have this set of three data points and want the natural cubic spline functions for them: dat = {{-.0247500, .5}, {.3349375, -.25}, {1.101000, 0}}; I tried: ...
12
votes
4answers
473 views

How to make a ArrayPlot/MatrixPlot in polar coordinates?

in fact, I want to plot a image like: Fig1 The picture above is from a paper Zhou K.-J. et al. 2014 about ion up-flow of ionosphere. In MATLAB, there is a specialized function ...
6
votes
2answers
2k views

How to draw confidence ellipse from a covariance matrix?

I am studying a two-dimensional dataset, whose mean vector and covariance matrix are the following: ...
9
votes
2answers
252 views

Self-loops in Graph may not display correctly or export correctly to PDF (due to BezierCurve problem)

Bug introduced in 10.0 and persisting through 10.3 Problem is due to a BezierCurve bug. I don't understand why the following does not work: ...
21
votes
3answers
3k views

How do I add arrowheads to circular arcs?

I have figures containing several arcs showing the extend of angular measures, and would like to indicate the directions in which angles are measured with arrowheads. How do I add an arrowhead at the ...
0
votes
1answer
70 views

Plotting two functions in one graph [duplicate]

Plot[2x, {x,0,4}] Plot[x^2, {x,10,12}] How do I merge these two graphs into one graph without the range {4,10}?
3
votes
1answer
191 views

Animating N points

So I'm trying to create an animation of N interacting particles in two dimensions confined in a box. Generating the data is fine and it's being stored in a text file with two columns for each ...
3
votes
1answer
722 views

Plot a function for different parameters

Suppose I have a function that I want to plot for several values of a parameter all in the same window. For instance the function $f$ defined as ...
0
votes
1answer
60 views

Graphics with different dimensions

I'm trying to have two visualize the vectors $(1,2)$ and $(2,1)$. Then, I wrote: Graphics[Arrow[{{0, 0}, {1, 2}}]] and ...
0
votes
0answers
54 views

ParametricPlot that worked in Mathematica 9 stops working in Mathematica 10

I've updated to Mathematica 10 and I am trying to plot the solution of a system of ODEs and I'm using exactly the same file that used to work in Mathematica 9, but now when I want to plot the solution ...
1
vote
1answer
97 views

How can I plot a sector of an ellipse using the central angle and not the Eccentric Anomaly?

It would appear that the Disk function, when asked to produce the sector of an ellipse between two angles treats those angles as Eccentric Anomalies (i.e. arguments ...
20
votes
7answers
2k views

Find intersection of pairs of straight lines

I have a list of 24 points, in which two consecutive points (1st and 2nd, 3rd and 4th, …) are supposed to form a line: ...
9
votes
1answer
118 views

A bug in Rasterize?

I plot a straight diagonal line and then simply rasterize it. Consider what happens (Mathematica 10.2 on Windows 7 x64): ...
13
votes
0answers
419 views

Circle with negative radius?

Why does this work: Graphics[{Circle[{0, 0}, -Pi/4]}] But this doesn't? Graphics[{Circle[{0, 0}, N[-Pi/4]]}] Telling me: ...
0
votes
1answer
42 views

Filling option failing when used with ListLogLinearPlot

As mentioned in this question the following filling seems to work well. ...
1
vote
1answer
58 views

Streamplot in one direction

R gives explicitly the seeding points and I want the stream lines to be drawn in one direction only, outside the circle ...
3
votes
2answers
150 views

Determine distance between two lines in an image

I have the fallowing image: http://postimg.org/image/qv7q9geuh/ In this image there are 5 more or less vertical peaks in total. Let the x-axis be the horicontal axis and y-axis be the vertical axis. ...
1
vote
2answers
122 views
1
vote
0answers
52 views

Graph equivalent of GraphPlot's MultiEdge style?

I like the default display of Graph much better than that of GraphPlot, but I do not see how to turn off the use of multi-edges ...
3
votes
1answer
248 views

Circular crop: extract non rectangular parts of an image

I want to extract a part of an image. For example, let's start with something like the following image: I would like to apply some image processing to get this result: I have tried to ...
8
votes
3answers
820 views

How can I set the background color to the Popupmenu?

I want to set the Background color of a PopupMenu to blue. I already searched in the documentation center, but I didn't find any ...
97
votes
6answers
8k views

Generating visually pleasing circle packs

EDIT: (my conclusion and thank you note) I want to thank you all guys for this unexpected intellectual and artistic journey. Hope you had fun and enjoyed it the same as I did. I would like to ...
4
votes
1answer
176 views

Drawing a RegionPlot but for data instead of a function

I am trying to draw something similar to RegionPlot, but instead of functions I only have data matrices. For example, I have the following 3 pieces of data ...