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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7
votes
1answer
960 views

How do I flatten transparency on a graphics, for conversion to eps or similar?

I've got a graphic that I'd like to save as an eps file. Trouble is, the graphic has some transparency to it. Since the eps format doesn't handle transparency, I want to flatten the transparency out, ...
7
votes
0answers
268 views

Caching of Graph Graphics

In this answer, Simon Woods concludes that when you display an expression with head graph more than once, something is getting stored somewhere. I looked into it too and found out this only happens if ...
7
votes
2answers
175 views

Why aren't the locators independently enabled/disabled?

I am wondering why the Enabled setting for the first locator (point1) overrides the Enabled setting for the second locator ...
7
votes
4answers
847 views

Plot Ellipse based on EigenSystem

Please consider the following : ...
5
votes
1answer
130 views

How do I avoid the gaps introduced by a frame on a plot?

You can see that there are gaps on all sides of the plot between the frame and the extent of the line that I've plotted. How do I get rid of these? I'd like the frame to cover $[0,1]\times[0,1]$ and ...
4
votes
1answer
224 views

Edit Plot/Graphics after it's been drawn. [duplicate]

Sometimes I run into a situation when there are graphics objects (mostly plots) that take a while to draw. Good practice would suggest you do all your evaluation outside ...
4
votes
3answers
325 views

Color function doesn't span the whole color range in MatrixPlot

In matrix visualization, for instance, MatrixPlot[{{1, 2}, {3, 4}}, PlotRangePadding -> 0, ColorFunction -> "Rainbow"] the color map does not cover the ...
3
votes
2answers
350 views

Add coordinate axes to a 3D plot of concentric spheres

I want to add coordinate axis to a figure of nested spheres. I have the command. ...
2
votes
1answer
203 views

Why is this expression being held, and how can I evaluate it?

I can't figure out why an expression isn't evaluating, even though there's no Hold* in its FullForm: ...
2
votes
2answers
181 views

Exporting graphics without X server

I have a Mathematica installation on a Linux server that is intended to be used for batch processing. Some of the things that will be processed will include rendering of graphics. However, if I use ...
2
votes
1answer
93 views

Graphing the amount of time a function takes

I know I can find out the amount of time a function takes to run like this: In:= function1[100] //Timing Out:= {0.043334, Null} How can I graph this over a set ...
1
vote
3answers
457 views

Phase portraits and StreamPlot

I typed StreamPlot[{y, x-x^3-0.3y+0.5Cos[1.25t]}, {x, -2.5, 2.5}, {y, -2.5, 2.5}] but all I got was a blank plot. What did I do wrong and can I fix it?
1
vote
0answers
100 views

Anti-aliasing won't work when there is PlotStyle command

I've found that if there is PlotStyle command in the input, anti-aliasing will not work. However if the Style code is ...
1
vote
1answer
97 views

TextCell going awry due to ImageResolution (in Mathematica 7)

Can anyone see how to fix this text display? The example is from a larger project. I need to export the graphic at high resolution, but the text is going wrong. ...
0
votes
1answer
185 views

Transforming an image as an object

The problem is following: I have a following animation: ...
0
votes
1answer
495 views

How to show legend in a combined plot of many lists,

I am having trouble with adding a legend to a plot. The example I discuss here is simpler than my real problem, but describes it well. I have a vector, called X with dimensions (100 x 6). I use the ...
62
votes
6answers
6k views

Generating visually pleasing circle packs

EDIT: I want to thank you all guys for this unexpected intellectual and artistic journey. Hope you enjoyed as I did. I would like to generate a circle pack that ...
26
votes
4answers
2k views

How to create this four-dimensional cube animation?

This is a tesseract, a four-dimensional cube, which contains two cubes. Here, each side length of the smaller one is 1, while the side length of the bigger one is 2. How do make I it? I am still ...
38
votes
1answer
1k views

How to construct a treemap using non-rectangles?

I've written the standard version of a tree map (a graphic that shows nested data) and I'm looking to improve on this layout by switching to different types of polygons or perhaps circles. Can anyone ...
27
votes
2answers
1k views

Animating a Voronoi Diagram

edit: Excellent answers have been provided and I made an animation which is suitable for my use, however, all the examples rely on bitmap/rasterized data; is there a vector based approach? I would ...
26
votes
4answers
575 views

How to make a stereogram in Mathematica?

Given a background and a pattern jpg files, is there a quick and easy way to produce a stereogram by using Mathematica? The following picture was produced from Photoshop, spent about half an hour. ...
22
votes
1answer
503 views

On drilling holes with minimal redundancy (and with colors!)

The old Mathematica package Graphics`Shapes` featured the function PerforatePolygons[], which drilled a hole in any ...
15
votes
2answers
614 views

How to measure segment length and branch angle

I am trying to measure segment length and branch angle or bifurcation angle between each pair of segments. My image after thinning looks like this: ...
23
votes
7answers
1k views

How do I draw a Circular Graph colored like this in Mathematica?

I must plot some data in radians and would like to use this image as a background to that graph. Although it looks good the lines are degraded in image form. thus the reason for this question. Can ...
18
votes
4answers
717 views

How to partition a disk into individually spaced bricks?

What I want to do is in any way produce a picture that looks like this Given a set of words, how can I partition a disk into bricks for these words, such that it looks good? Here is my sucky ...
14
votes
3answers
700 views

Approximating an ornamental curve

How do I go about approximating this ornamental curve? Note that the curve has somewhat variable thickness as typical in calligraphy, which I would also like to replicate. The excellent reference ...
14
votes
3answers
1k views

Creating diagrams for category theory

Lately I've been doing algebra and I have found myself drawing a bunch of diagrams when I attempt to solve a problem. Most of the diagrams are very simple so I thought, I bet I can do this in ...
11
votes
2answers
588 views

Rebuild a polygon so it doesn't self intersect

If you consider the following Polygon: ...
6
votes
1answer
1k views

Spiral pattern and Fibonacci numbers

I'm want to generate a 2D spiral pattern like the the one shown in the following figure. I can generate the spirals one by one, but I think there ought to be a more efficient method for generating ...
6
votes
2answers
7k views

Plot legend inside a Show [duplicate]

Possible Duplicate: Using PlotLegends with Show messes up the graphics I have created a composite plot function: I want to add a legend to it, but ...
12
votes
2answers
572 views

2D Visualization of links and knots

I am trying to draw a picture using Mathematica of three loops linking together in 3D as follows. ...
10
votes
1answer
526 views

Roads network visualization by thickness and color intensity by population from GIS files

We can have road networks of the countries in GIS shape file.For exmple from here. Normally traffic flows are proportionate to populations of the cities. I wonder how we can have the same in ...
13
votes
2answers
1k views

Mathematica color schemes for the colorblind

Does Mathematica have a graphics option that makes plots intelligible for people with colorblindness?
13
votes
6answers
624 views

How can I fill-in this Pentagram?

This is my code: Graphics[{EdgeForm[Yellow], Yellow, Polygon[Table[{Cos[t], Sin[t]}, {t, 0, 4 π, (4 π)/5}]]}] which gives this: but I want to get: How?
12
votes
1answer
1k views

3D plots with parallel projection

It is easy to make 3D Plots with Mathematica, e.g. use: Plot3D[Sin[x+y^2],{x,-3,3},{y,-2,2}] But I want to have nice plots in my thesis, so I decided to use ...
10
votes
4answers
783 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 ...
9
votes
2answers
567 views

How can I create a fountain effect?

Inspired by this (please use Chrome or Firefox), I tried to simulate it, but I couldn't do it. I'm not familiar with Dynamic. Here is my simple code: ...
9
votes
1answer
2k views

Image Processing: Finding Orientation and Position of Symmetry Axes

Background I'm currently toying with Principles of Design by Charlotte Jirousek in order to learn some basics of image processing. As main principals she suggests Balance, Proportion, Rhythm, ...
6
votes
1answer
373 views

Building a molecule viewer: aesthetic rotations

I am working on building a molecule viewer in Mathematica and am running in to problems with controlling rotation of the molecule (which is rendered as a ...
18
votes
3answers
559 views

Change the color of a Locator in a Manipulate

How can I change the color of a Locator in a Manipulate? As an example, consider the following. ...
15
votes
2answers
378 views

Scaling edge thicknesses

UPDATE There may be some confusion as to the specification of the problem. kguler's answer doesn't really answer the question. I'll try to elaborate a bit at the bottom of the post. One problem ...
15
votes
4answers
711 views

How can I create a ColorFunction using Blend?

As shown below, I am trying to find a cool way to show some variance weighted deviation from the mean. There are 10 attributes that I compute the distance for. How can I add a color function such ...
13
votes
4answers
2k views

How to draw a great circle on a sphere?

I apologize for the text description, but new users are not allowed to post images. I want to draw a circle that cuts through the center of a sphere and has an inclination of 15 degrees with the ...
11
votes
4answers
496 views

What is a good way to plot some difficult implicit equations?

Here are several equations, it seems that Mathematica couldn't plot them well, although I set PlotPoints>100 ...
11
votes
1answer
243 views

Finding minimal region with padding and linear map to circle

Suppose I have n ordered points. I would like to find a simple region that contains all the points and is close to the smallest region that contains the points except it is smooth and has some ...
10
votes
3answers
461 views

How to use legends from PlotLegends in LevelScheme?

I've been attempting to find efficient ways to generate graphics with legends for export, and have been working with both LevelScheme and the new (to v9) ...
10
votes
2answers
364 views

Diagonal Tick Marks

I would like to draw diagonal tick marks around a plot, and simultaneously rotate the tick labels as well. I've mocked up what this would look like: Is there an easy way to do this in Mathematica? ...
10
votes
2answers
3k views

Use different ColorFunction for each function plotted

When plotting two curves on one plot, you can specify different colors for each function: Plot[{Sin@x, Cos@x}, {x, 0, 4π}, PlotStyle -> {Red, Blue}] To ...
10
votes
2answers
570 views

Detecting edge/region in contour plot

I am interested in improving this plot: which I produced with the following command: ...
9
votes
4answers
406 views

Graphics can't be live and editable

Is there a way to construct an interface so that the Code and the Graphics remain in sync? For example I would like to be able to drag/drop and move around different shapes in Graphic while seeing ...