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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4
votes
3answers
440 views
4
votes
2answers
154 views

Why can't a Plot be rendered by Graphics if it's a member of a list?

I grabbed the code to render a gear from a Mathematica Demo, but I'm having difficulty reproducing the way it's to be used: ...
3
votes
0answers
55 views

Strange extrapolation in ListContourPlot?

I have some Table of {x,y,z} values (energy as a function of radial and azimuthal frequencies in a galaxy if you care to know): ...
16
votes
3answers
869 views

How to get the real PlotRange using AbsoluteOptions?

The problem in general involves the unreliable behaviour of AbsoluteOptions when option values are implicitly specified (e.g. ...
5
votes
4answers
772 views

Creating a realistic, photo-like 3D effect from an image or document

Suppose I have an image or a document, provided in a high-quality PDF file. You can open and view it in a PDF viewer, but then it has a kind of static look: it's not something tangible, it's just an ...
0
votes
0answers
57 views

ListDensityPlot seems to break down for large arrays

(Using Mathematica 10) When using ListDensityPlot to plot 40000 + data points, the produced plot seems to be blurred/incorrect for points occurring later in the list. For instance, in the following ...
3
votes
3answers
361 views

How to create a Disk with smoothly changing coloring?

I want to have a disk. But this disk shouldn't have a fixed color; instead, I'd like it's color to fade smoothly. Until now, I came up with two ideas how to achieve this. Idea #1: ...
13
votes
1answer
421 views

Cropping a Voronoi diagram

Someone know how can I get the correct crop of this Voronoi image using RegionFunction? As you can see, there is a lot of undesired white regions inside the left ...
0
votes
0answers
41 views

ColorFunction in GeoRegionValuePlot

I don't understand ColorFunctions so any general pointers will be greatly appreciated. My specific question is the following. I want to animate a GeoRegionValuePlot. In the toy case below I have two ...
3
votes
1answer
146 views

Keeping Font Relative Size to Object/Graphics/Plot Object upon Resize

I want to keep the text generated within a graph/plot to remain the same relative to an element (a disk of size 0.2) of the image upon resize, not the image itself, while maintaining the original ...
39
votes
3answers
2k views

Mollweide maps in Mathematica

Context In my field of research, many people use the following package: healpix (for Hierarchical Equal Area isoLatitude Pixelization) which has been ported to a few different languages (F90, C,C++, ...
0
votes
1answer
51 views

Histogram 3D: use different bin width in two directions

I'm trying to plot an histogram of a set of data, I would like to use a bin of different width in x and y direction. I've tried using the following two codes: ...
2
votes
1answer
60 views

Epilog does not work as expected with Show [duplicate]

I was trying to answer this question (here) and I found that I can't use Epilog with Show. consider this Example: ...
1
vote
0answers
57 views

Version incompability Mathematica 10 CDF Player 9

I have aleady looked at these two questions: Is there a CDF Player for Mathematica 10? and Problem with NDSolve in Mathematica 9 / 10. My problem is as follows. I am simluating neurons, which ...
-1
votes
1answer
99 views

Finding the pixel positions for the straight line joining two points [duplicate]

Please help me solve the given problem. Find the pixel positions for the straight line joining P1 (10, 20) and P2 (18, 25)
0
votes
0answers
30 views

ErrorBarFunction styles [duplicate]

I am having trouble making sense of the help I have found for the ErrorBarFunction command. I am looking for basic instructions on how to change the width, style, and color of my error bars. ...
0
votes
1answer
58 views

Why does `Table` returns values but `Plot` doesn't plot them?

The Table function works fine and return a nice list of values ...
2
votes
1answer
200 views

Drawing all lines between a set of points

Given that I have the array of points, ...
4
votes
3answers
371 views

How can I make an linear breakdown chart similar to those seen on iCloud? [duplicate]

How can I make a interval breakdown chart like this: Update: I checked BarChart and Gauge they do not have this capacity.
16
votes
3answers
1k views

Get x and z coordinate from an image and make a parametric surface

In this blog entry, this step is mentioned: I grabbed an image of a Peugeot wine glass from the web and used the Get Coordinates function to digitize its outline, which I fed to Interpolation to ...
1
vote
0answers
39 views

Join a surface and a density plot [duplicate]

My question is if it's possible to do something like this with Mathematica: I know that it is possible to plot a surface with Plot3D and a 2D plot with DensityPlot, so I was wondering how to join ...
3
votes
3answers
309 views

Using DiscretePlot to graph the Riemann sum of a parabola

I want to graph the Riemann sum (upper sum) of $y=x^2$ with $1\leq x\leq 4$ using 6 rectangles. I want the rectangles to be green. On the Wolfram Mathworld website, I can render exactly what I want ...
2
votes
1answer
120 views

Dynamic overlay of graphics and plot while maintaining uniform coordinates [closed]

I have a plot and a graphic that I want to overlay onto one another while retaining a uniform sense of coordinates throughout the whole thing. I have tried to do this two ways and both suffer from ...
1
vote
0answers
54 views

cut and project tilings — Amman Beenker tilings

A certain research paper gives a recipe for building Amman-Beenker tilings as a special type of cut-and-project algorithm. The result is usually a pleasant kind of aperiodic tiling shape. The ...
0
votes
2answers
74 views
2
votes
1answer
143 views

How can I make a map of Sierra Leone at the district level?

Hi I am trying to make a map of Sierra Leone and am running into trouble. SL has 4 provinces: Northern, Southern, Eastern, and Western, which are diced up into 14 districts as shown here: ...
2
votes
2answers
90 views

Placing text within a plot

I want to place text within a plot. The text is always centered relative to the coordinates. How can I left-align or right-align the text relative to the coordinates? For example: ...
1
vote
1answer
85 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 ...
4
votes
2answers
290 views

How to plot an implicit value funtion

Previous question has been solved (Gap in a continuous plot). Here is a new related question. ...
11
votes
1answer
159 views

Tube and CapForm

Bug introduced in 10.0.0 and fixed in 10.0.2 I am using version 10 to draw tubes. With the CapForm set as Butt the first pipe is as expected but the bent pipe has one rounded end. Is this a bug? ...
6
votes
2answers
192 views

How to make a “flat” plot (or a grid of 2 plots) of 3 variables in Mathematica (sample picture attached)

Is it possible to plot that kind of graph in Mathematica? (picture attached) If yes, it can be used to visualise a simple "balance system" of the form: X = f[e]; ...
2
votes
1answer
59 views

Specifying the style of edges in directed graphs [closed]

How do I specify the style of individual edges in a directed graph (in Mathematica version 9)? Consider maybe this ...
4
votes
2answers
208 views

Embedded Graphics: General Relativity

Is there a way to make the following graph with two dimples? Like the central indent and another indent to the side to simulate a central mass like the sun and another smaller mass like the Earth in ...
2
votes
0answers
83 views

Unnecessary and slow conversion between simple polygons and geometric regions

To my knowledge some (but not all) of the new geometric region functions in Mathematica version 10 require an additional step to convert from geometric shapes into regions. However this step Does ...
7
votes
1answer
185 views

Aristic rendering of breaking waves from a Japanese panel

Any insight to model and render the breaking waves in the style of this - likely Japanese or possibly Korean panel? Line drawings are acceptable, not necessary to replicate all the details like ...
2
votes
2answers
153 views

Plotting boundary of piecewise function in ContourPlot

I am trying to do a ContourPlot of the following function: ...
3
votes
1answer
249 views

List Contour Plot: Delete some contour lines, but keep the colors

I'm trying to make a Contour plot of a set of data of the kind: $(x,y,f(x,y))$ What i'd like to do is to remove the majority of the iso-line and just leave two of them, but keeping the changing of ...
1
vote
2answers
167 views

The graph of inverse function $f^{-1}(y)$

Show that $f:I=(-1,1) \rightarrow \mathbb{R},$ it follows that $$ f(x)=\begin{cases} \quad1-x & \text{ as } -1<x\leq 0, \\ \frac{{x}^{-1}+ \lfloor {x}^{-1}\rfloor}{1+{x}^{-1}+\lfloor ...
2
votes
0answers
83 views

Font rendering difference between .jpg & .pdf [duplicate]

I have some planar graphics involving lines and text, produced by Line[] and Text[], accepting the default font on the latter. ...
10
votes
2answers
670 views

Rendering thousands of points

I am trying to render an image with some 120,000 Points. Technically it's just 10,000 points, plus their reflection, plus 5 rotations of both of those sets, but I'm ...
2
votes
2answers
386 views

Generate nonoverlapping random circles [duplicate]

I want to distribute n circles unformly in an area(e.g. free plannar space). The circles could touch each other but cannot overlap. ...
0
votes
1answer
105 views

Display 3D function and its gradient in same graphic [duplicate]

Is it possible to display e.g., $z=x^2+y^2$ with Plot3D and in the same box, in the $z=0$ plane, plot its gradient?
1
vote
1answer
236 views

graphics grid legend

I'm working with mathematica 9.0 and I want to make a graphic grid containing 3 different plots. My problem is that when I use plotlegend to label the plots the legend does not show up or the left ...
1
vote
0answers
71 views

ImageResolution Doesn't Work!

The code below is supposed to generate a high resolution plot, but it does not! g = Plot[Sin[x], {x, -1, 1}]; Export["c:/sin.jpg", g, ImageResolution -> 600] ...
2
votes
0answers
61 views

How to combine several plots with this special alignment? [duplicate]

How can combine different plots just as shown in the image? Just give codes about one example plot,and tell me how to create plots as the form as gaven. Follows are codes: n = 2; z = 200; [Alpha] = ...
3
votes
2answers
171 views

How to cut a thick curve in half lengthwise?

Is there any easy way to cut a thick curve in half lengthwise? Example: suppose I have the cardioid shown in the figure below, is there a way to delete either the inner or the outer portion of the ...
0
votes
0answers
77 views

Exporting graphic to pdf acting funny [duplicate]

I have a plot created in a notebook that I usually would right click on and choose Save as pdf. It worked fine until this morning. Shown below, the first plot is what I used to get. The second plot is ...
0
votes
0answers
69 views

How to randomly create disks with randomized radii under given specific cover ratio? [duplicate]

I want to create uniformly distributed disks(dots) in a specific rectangular area. Suppose: the disk radii should be uniformly between $a$ and $b$ ($0<a<b$); there is no interaction between ...