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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1
vote
1answer
328 views

GatherBy and two conditions

I have a list of 4 dim points, given by ...
3
votes
1answer
205 views

How to fill a whole rectangle with text?

I have a rectangle with specified dimensions and I'd like to fill it with text, so that the text uses all (well, as much as possible) of the available area. I tried to do it with ...
1
vote
0answers
66 views

Dot shading a.k.a. Stippling effect [duplicate]

I am trying to convert grayscale images to black and white, where I hope to have certain artistic effect, called stippling: I have tried two methods; dithering (with ...
44
votes
2answers
2k views

How can I add drop shadows and specular highlights to 2D graphics?

I thought I'd share some code in the form of a self-answered question, but other answers are of course welcome. Drop shadows are a familiar visual effect, giving the impression of a graphical element ...
8
votes
2answers
874 views

StreamPlot for Bifurcation Diagram

When we do a StreamPlot, I want to show the bifurcation when $a = 0$ transitions to $a >0$, but do not see a better way to do this than the following. ...
5
votes
1answer
117 views

Why does a heavy background slow LocatorPane from updating, even if only the locators are Dynamic?

I'm having some trouble getting a dynamic plot to operate efficiently, and I think I've tracked down at least part of the problem to some pretty weird behaviour on the part of ...
14
votes
5answers
512 views

How can I generate and randomly assign color to annular sectors?

How can I generate such an image and fill every annular sector with a random colour?
0
votes
0answers
77 views

Plot hangs Mathematica through NETLink

I have a C# function that calls Mathematica via Wolfram.NETLink. On our home computers all the test calls work perfectly, but on our AWS server (both a microinstance and a beefy c3.xlarge instance), ...
0
votes
2answers
294 views

Extract coordinates from a polygon [duplicate]

I need to extract the coordinates from a 2D polygon then calculate the maximum and minimum of the x and ...
1
vote
1answer
1k views

How do I overlay multiple graphics on one plot? [duplicate]

I am plotting n spectrum using: ...
0
votes
1answer
417 views

Calculate the centroid of a group of pixels with the same PixelValuePositions

My question is about how to recognise objects in a image. I would like to recognise objects of the same color. Then I want to calculate the centroid of these objects. I want to apply this calculation ...
23
votes
4answers
973 views

Implementing a Beeswarm plot in Mathematica

I am looking for a Beeswarm plot implementation in Mathematica. Consider the following data: ...
1
vote
1answer
369 views

Error bar plot - no bars but rather point size determined by errors

Looking for a way to create an ErrorListPlot (x,y,error) with the radius of the PlotMarker ...
2
votes
1answer
173 views

How to change the format of FrameTicks

Here is a plot with the default frame ticks S1 = Plot[Sin[x], {x, -7, 7}, Frame -> True, Axes -> False] Now, if I define myself the range as well as the ...
1
vote
2answers
725 views

Multiple curves plotted with different colours [duplicate]

I am trying to use ColorFunction for 2 functions on the same plot. I only want the cubic equation to change colour. ...
8
votes
1answer
444 views

How does PlotLegends actually work with ListPlot3D?

I'm sensing this might be a rookie mistake but normally I roll my own legends but decided to try the built in legends for a ListPlot3D. ...
0
votes
0answers
218 views

How to plot an implicit equation with separate dispersion lines of Lamb waves

I'd like to plot (to try reproduce) dispersion curves of Lamb waves as in http://en.wikipedia.org/wiki/Lamb_waves But I can't to separate each lines. I was reduce the dispersion equations as X=ωd/Vs, ...
0
votes
0answers
77 views

3d graphic for publication [duplicate]

Journals are very strict and some of them require special formats. They suggest the .tiff or .jpg format for graphics with many colors. I have problem how to export, for example, this figure consists ...
3
votes
0answers
53 views

Tick labels above axis [duplicate]

Is there any way to place tick marks on the x-axis above the axis? Note that I am talking about marks on the axis, not on a frame (because my graph has no frame). To be more specific, here's the ...
13
votes
2answers
442 views

Get Coordinates 4 significant digits limitation

The tool "get coordinates" (clicking on a plot), seems to work with a fixed number of significant digits (4), in a way that we can quickly lose sensibility (the tool really becomes useless). The ...
0
votes
0answers
40 views

Using Manipulate, how do you display the points on the curve and the tangent vector? [duplicate]

I'm new to Mathematica and my assignment is very vague... I'm hoping someone can explain to me a bit more of that this quesion means: Given the curve C, display the point on the curve and the ...
5
votes
3answers
3k views

Labeling points on a graph with their coordinates in parentheses

I need to create some graphs in Mathematica with a bunch of labels, such as axes labels, graph labels, etc. In particular, there must be some points that must be labeled with their coordinates. Thanks ...
2
votes
1answer
309 views

Making a rectangular label for RegionPlot

I have a plot that includes a Region Plot. I want to make a rectangle with the same shading as in the region plot to show as a legend. The dumb way I can think off ...
1
vote
0answers
69 views

plot cropped in large amount when setting Text Style to some specific sizes and in some locations

I make a Graphics and then add Text[Style["b",size] to it. When changing the size, I noticed that the overall graphics gets ...
0
votes
1answer
273 views

Plotting a line segment from the degenerate case of an ellipse [duplicate]

An ellipse degenerates into a line segment when the defining constant distance from the two foci is the actual distance between the two foci. The ellipse closes into a line segment. The following ...
1
vote
1answer
103 views

Connecting a vertex to middle of an edge with GraphPlot?

using GraphPlot I'd like to make directed arrow connecting a vertex (node) to the middle of an edge but couldn't find a way. Is this even possible using GraphPlot or other graphics-related commands in ...
14
votes
1answer
288 views

Unwanted PlotMarkers appear at non-existent places

Bug introduced in 7.0 or earlier and persisting through 10.2.0 In this simple code ...
1
vote
1answer
200 views

Export Graphics using Move in Optica

I am modeling an eye and am using TurboPlot and DrawSystem. I would like to export the graph, but using the ...
0
votes
0answers
82 views

densityplot + world map overlay [duplicate]

I can make a world map, and I can make a density plot, but I can't seem to get them to overlay. Was trying to use Show to overlay: ...
20
votes
0answers
308 views

Graphics`Mesh`FindIntersections[ ] fails to detect intersections

Graphics`Mesh`FindIntersections[ ] is an undocumented function for, well, detecting intersections very efficiently. Take a look: ...
0
votes
1answer
354 views

Using an image as a moving object in an animation

I have following animation: ...
2
votes
2answers
728 views

Generating social network graph from a CSV file

I am new to Mathematica and wanted to generate undirected graph for data sets that show the relationships of organizations with each other. The data is in a square matrix. The cells of the matrix ...
4
votes
2answers
451 views

Recognize simple shapes in an image and color them randomly?

I have an image of polygons built from a polar function (see below). I'd like to color each triangle or quadrilateral a random color. Firstly, I'm not sure how to separate the simple shapes. ...
0
votes
1answer
168 views

Graphics with shapefiles using tooltip

I'm trying to write a code that displays an entire shapefile color-coded by one variable, and then as the mouse is moving it shows the local regional area of interest with all its data Got a working ...
1
vote
1answer
272 views

Detecting a nonlinear edge in a 2D point pattern

Following an earlier post here, I have generated a point pattern on the unit square $[0,1]\otimes[0,1]$, which is described by a piecewise constant intensity function constructed so that (in ...
1
vote
1answer
1k views

ListPlot doesn't shows all points [closed]

I have a table: p1 = Table[(Binomial[2000, k]*StirlingS2[1386, k]*k!)/(2000^1386), {k, 1, 1386, 1}]; I used ListPlot[p1] ...
3
votes
2answers
239 views

Assigning weights to edges of a hypercube based on the Gray code labels for vertices being connected

Say I want to construct an $n$-dimensional hypercube graph $G$ using the command: G = HypercubeGraph[n]. I'd like to assign edge weights to the $2^{(n-1)}n$ edges ...
2
votes
2answers
238 views

how to get a linearized curve in some intervals

in below picture I draw a graph base on weight of a controller system against cost function. I want to linearise and divide this curve to for example 5 five intervals. is there any function in ...
1
vote
1answer
96 views

Maximum but still limited magnitude region is not plotted with ContourPlot [duplicate]

The function is well defined in the whole region. But it just skips plotting the center region. I've tried PlotPoints, Mesh, Contours - it didn't help. After making more contours. White hole is ...
1
vote
1answer
187 views

How can I show a rotated PDF plot superimposed on a ListPlot of the underlying data?

I have a set of 3 lifetime datasets in lists called values1, values2 and values3. values1 = {53377., 16542., 31418., 5629., 17654., 7365., 15797., 862., 76906., 10073.}; values2 = {74412., 15620., ...
1
vote
1answer
135 views

Extract Graphics properties using EventHandler

One can find primitives' properties such as the radius, the center or the color of a Disk using Cases by using: ...
1
vote
2answers
339 views

Plotting in the “Manipulate” function - simple coding

Hello Mathematica community, my name is Preston! I have a real quick question that should be easy to answer. Alright, so for a research project that I'm involved it at my university, I need to ...
1
vote
2answers
209 views

Analyzing Betting (Keno) in Mathematica [closed]

Keno is a popular lottery game that is available with all of the larger casino softwares. The player is given a ticket with 70 numbers on it. He picks 1 to 11 numbers on the ticket. 20 winning numbers ...
2
votes
1answer
390 views

Finding intersection of 3D lines

I want to find the intersection of 3D line. I want to detect the 3D light source position by intersecting 3D lines. ...
0
votes
1answer
224 views

Revolving the area between two functions about an axis

I'm trying to graph the revolution of the area between two functions about an axis, but I'm new to Mathematica, and not sure how to proceed. My area is defined by ...
89
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 ...
3
votes
1answer
226 views

Ugly plots when printing notebook to pdf

One image is worth one thousand words, so: Question: At what options should I be looking, so that what I see in my notebook is what I get in my printed pdf ? Here is the code I'm using: ...
1
vote
1answer
144 views

Possibility of evaluating the expression within a NestList at each iteration?

I want to rotate iteratively a triangle about the same point, increasing for each iteration the length of its side in the same proportion and change the color of its sides. I came up with the solution ...
4
votes
4answers
372 views

Using Locators in a non-standard Manipulate code

I'm trying to adapt Nasser's method for using a control variable inside Manipulate to selectively choose what part of the code should be recalculated depending on the controls changed (see this ...
1
vote
1answer
243 views

Using Manipulate with a control variable for selective recalculation

I'm trying to adapt Nasser's method for using a control variable inside Manipulate to selectively choose what part of the code should be recalculated depending on the controls changed. I've also read ...