MetaPost uses a language based on that of Metafont to produce precise technical illustrations. Its output is either scalable PostScript or SVG or bitmaps PNG, rather than the bitmaps Metafont creates. This tag is compatible with {diagrams}.

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3
votes
1answer
81 views

Minipage inside MetaPost label within GMP - what is wrong?

Any clues please?? The following MWE will not compile. Line where minipage environment was used seems to be the offensor. With that left out compiling is OK. \documentclass{beamer} ...
11
votes
1answer
213 views

Union of Paths in MetaPost

I'd like to compute the union of a collection of outlines in MetaPost. I'm aware of the buildcycle macro (in combination with cutbefore and cutafter). However, that macro is not very useful because I ...
3
votes
1answer
106 views

OpenType MPlib labels with luatex-plain

I am trying to get the luamplib to work with the luatex-plain -format. I installed BasicTeX2014, and then did tlmgr install context. Then I did luatex --ini ...
4
votes
1answer
284 views

how to use metapost package boxes

Try to make a text box, like "framed" text in context using metapost by following the example mpboxes or metapost examples \startMPpage %input boxes boxit.a(btex test etex); a.c = (0,0); ...
1
vote
0answers
112 views

Is the introduction chapter 0 or 1? [closed]

I know this question, is not directly about tex: What is the norm in science: Is the introduction the 1st or 0st chapter?
5
votes
0answers
87 views

metaobj point as object

i give a first look to metaobj package and i try to define a triangle (almost as in the manual). So here's the EDIT (fpast request) code : input metaobj; vardef newTriangle@# text options= ...
2
votes
1answer
377 views

Metapost labels do not work with MiKTeX 2.9

I have upgraded from MiKTeX 2.8 to 2.9. All the label commands that earlier worked in Metapost are not working anymore. I am using MiKTeX in conjunction with TeXnicCenter. The MetaPost version ...
20
votes
6answers
1k views

Generating Random arrows in tikz

I would like to draw this figure : Hence, I resort to TikZ. But, it seems to be very difficult drawing arrows precisely in TikZ with the precise locations (x,y). I have achieved this: Here is the ...
4
votes
1answer
104 views

Define a pair/point as a pair/point along a path length METAPOST

Is it possible to define a pair as a point along a specified length of a path? so for example beginfig u=2cm; path x; x=(0,0)..u*dir(225); %v= a point along a fraction of the length of x in a ...
3
votes
1answer
100 views

Translate a path in Metapost

Is there a way to draw a path that was defined by relationships between pairs centered around a specific point? I basically want to create a path that I can translate anywhere I want in my image. ...
33
votes
6answers
2k views

How to make the length of a car moving on a roller coaster track remain unchanged?

For any arbitrary parametric smooth curve, how can I make the length of a car remain unchanged? \documentclass[pstricks,border=12pt]{standalone} \usepackage{pst-plot,pst-node} \pstVerb { ...
12
votes
1answer
152 views

Inline purified PostScript (MPS)

I just learned how to inline PDF code using the \pdfliteral command and that purified Encapsulated PostScript generated by METAPOST or purifyeps can be converted to PDF code by pdfLaTeX. However, I ...
3
votes
1answer
126 views

btex \begin{align} …\end{align} etex METAPOST issue

I seem to be having trouble getting my code to carry out any amsmath command with the btex--etex environment in a metapost file. The appropriate packages are defined withint my tex file, so I really ...
6
votes
2answers
138 views

How to distinguish between Metafont and MetaPost?

Background I'm trying to make a nice SVG out of Knuth's Dangerous Bend symbol based on his own code, for which the obvious tool to use is MetaPost. However, I'd prefer to still be able to process the ...
11
votes
4answers
1k views

Plot the cusp catastrophe surface

I'm trying to draw (plot) the Cusp catastrophe surface into latex using any software logic. I am completely stuck because I'm definitely not a mathematician. The surface has the potential: V(x) = ...
4
votes
1answer
159 views

Drawing with a macro

I have just began using MetaPost and I would liked to be able to put a grid on my images, so I could easily read coordinates from it. I would liked to write a macro, that I could import while creating ...
7
votes
0answers
142 views

How to define a sort of reference in METAPOST?

Assume we are defining a canvas abstract data type in METAPOST, where some tasks are gathered. I would like to define a kind of reference to the last added task, but I do not know METAPOST good enough ...
9
votes
2answers
386 views

How to create a wavy lines with MetaPost?

I am looking for a macro or whatever code that can draw a wavy curves with MetaPost. In other words, I need a wavy/spring version of what follows: beginfig(1); z1 = (0,0); z2 = (3,2); z3 = (6,0); ...
2
votes
1answer
160 views

Hatching Package with Metapost

I am new in metapost and I am unsure as to re-define the withcolor command to revert back to the metapost default. I am trying to draw the cross section of a cylinder, where the inner circle is ...
42
votes
12answers
4k views

Drawing a Reuleaux Triangle

A Reuleaux triangle is a shape of constant width sort of like a rounded equilateral triangle. (Reuleaux triangle - Wikipedia, the free encyclopedia) It can be formed by the intersection of three ...
3
votes
1answer
69 views

adjust uniformdeviate values

I need to insert in the rectangle all my 10 molecules in random way (angle and x,y position). I don't know what is wrong with my code. \startMPinclusions vardef spring (expr a, b, w, h, n) = pair ...
4
votes
1answer
76 views

lost linear_shade output

What is wrong with my code? The second call of SoundEnergy lost the black/white gradient. \startMPinclusions def SoundEnergy = path pr ; pr := unitsquare xscaled .3cm yscaled 2cm ; ...
32
votes
2answers
4k views

Milestone graphic in TikZ

This question led to a new project for a TikZ based solution: timeline The author of the original artwork has posted his METAPOST based library: blueprint How could I implement a ...
8
votes
3answers
297 views

How to automatically draw the images of a point placed between 2 inclined mirrors?

Consider a point X placed between two inclined mirrors as follows. \documentclass[pstricks,border=20pt,12pt]{standalone} \usepackage{pst-eucl} \def\Angle{37}% extreme case in which 360/\Angle-1 is ...
9
votes
3answers
310 views

Why two intersected paths can't buildcycle in MetaPost?

Suppose that I have two path: beginfig(0) u:=10pt; vardef randomcirc(expr O, r, w) = save p,i; pair p; numeric i; p=O+right*r; p for i=1 upto 9: .. (p rotatedaround(O, ...
6
votes
1answer
302 views

The array in metapost

Suppose I have defined an array of points pair p[]; Then are p.0, p0, p[0] different? Can I use p.01, p01, p[01]?
8
votes
3answers
773 views

MetaPost: How to fill cycle path with slanted lines?

Suppose I have build a cycle path with bulidcycle: path pa[]; pa.0:=(-6u,0){dir 90} .. (0,8u){dir 0}; pa.01:=pa.0 reflectedabout(origin, (0,1)); pa.1:=(-6u,0){dir -90} .. (0,-3u){dir 0}; pa.11:=pa.1 ...
8
votes
1answer
1k views

Feynmp / metapost - labels not working

I am trying to draw a simple Feynman diagram with FeynMP. I use the following code to generate by .mp file - note I use the fmfgraphs environment. \documentclass{article} \usepackage{feynmp} ...
41
votes
9answers
3k views

The Spiral of Roots in TikZ

How can one create a spiral of roots as shown in the diagram below: where one can use a command to draw more parts to the spiral. For example, a command like \sqrtspiral{1}, \sqrtspiral{2}, ...
3
votes
2answers
175 views

metapost, metaobj and labels

I found this trick posted by Aditya some time ago that allowed to use metaobj in context. Currently this code no longer works. Currently, are there any way to use metaobj in context? The main problem ...
4
votes
1answer
263 views

Electron distribution box diagram

Just for sharing. Improvements are welcome. \starttext Electron distribution box diagram \startMPcode picture finalpicture ; finalpicture := nullpicture ; numeric n ; n := 0 ; bboxmargin := 0pt ; ...
5
votes
0answers
227 views

Scheme for Chemical Potential Energy representation [closed]

I wrote this code to schematically represent the concept of chemical potential energy. This image will be part of a representative diagram of energy transformations in a voltaic cell: chemical ...
10
votes
1answer
186 views

Is this a bug in the pfb file or a bug in metapost's “glyph”? [closed]

I've only recently started playing with metapost's "glyph". I've discovered (MWE below) an anomaly with the paths in serifs for the cm font set from these experiments. Starting point: it seems that ...
3
votes
2answers
141 views

add labels and build the path through a list iteration

I had to build a graph with metapost for my physics classes (see below). What I would like to ask you is if there are a way to add the curve and their labels in the some way that i do with tikz: ...
3
votes
3answers
202 views

How can I fill a complex path with Metapost/Metafun?

Is there any way to produce exactly following PS and SVG code with Metapost/Metafun? Unfortunately, unfill won't work for me, as there is a background in the resulting page. And this example is ...
3
votes
1answer
116 views

Increase image resolution using MetaUML and metapost

I'm using MetaUML to create text-driven UML diagrams. When I generate a figure, with: $ mpost example.mp $ convert ps:example.1 png:example.png a very low-resolution image is generated. If I scale ...
6
votes
1answer
367 views

How to create MetaPost image for LaTeX

Im trying to figure out how to create this image in MetaPost
27
votes
2answers
950 views

Chaotic billiard with TikZ

I'm looking for a TikZ library that could help me to represent different shapes of chaotic billiards. Any idea?
2
votes
1answer
160 views

Omitting visibility marker in MetaUML

Is there a way to omit the visibility (lock symbol) marker in MetaUML Class objects? If I just refrain to use one I get a protected marker as a default. A short example (note: the LaTeX builder has ...
12
votes
2answers
320 views

Is there another better way to have a region with gradient opacity?

My objective is to get a region with gradient opacity. In the following MWE, the region is a quarter of a disk on the top a bird. I made the gradient opacity by partitioning the sector into 45 ...
6
votes
2answers
231 views

Using negative coordinates in EPS file with XeLaTeX

I've run into inconsistent behavior with XeLaTeX and EPS files with negative coordinates. The wrapping block for the figure is calculated correctly; however, the content of the figure is misplaced ...
2
votes
0answers
62 views

Context mptopdf problem [closed]

I've a problem with the following file input graph u=0.5cm; beginfig(0); draw dashpattern(on 5bp); picture pa; pa=currentpicture; currentpicture:=nullpicture; draw dashpattern(on 5bp off ...
9
votes
2answers
317 views

LuaLaTeX and MetaPost

Is there a LuaLaTeX equivalent of \startMPinclusions input mpfile; \stopMPincusions in ConTeXt? That is, if I have \documentclass{article} \usepackage{luamplib} \begin{document} ...
3
votes
1answer
175 views

Using Metapost inline in LaTeX (no ConTeXt)

When I was more active in LaTeX and Metapost (~10 years ago) I could not find a way to directly use Metapost in LaTeX. There were few tutorials on how to use it within ConTeXt, but for using it with ...
47
votes
13answers
3k views

What is the simplest way to draw this triangle exactly?

I want to see how we can exactly construct the following diagram as simple as possible. It means that the manual calculation should be avoided. Note that the angle marks attached to angles ...
5
votes
2answers
524 views

graph of function with metapost

I have to create graph of function 3x^4 − 11x^3 + 12x^2 − 4x + 1 ; interval <0,1;1> . I have just func.mp input gjktc.mp; u:=1mm; path p[]; beginfig(1); draw (0,0)--(10u,10u); draw ...
6
votes
1answer
436 views

Full colored Triangle and Circle in Metapost

The question may be trivial, but I need your help, to draw a full colored triangle and circle (where the triangle will be inside the circle). Here is my file pic_1.mp: input gjktc.mp; u:=1mm; ...
3
votes
1answer
136 views

Metapost and ConTeX

I am completely new to ConTeXt and have just started to experiment with writing metapost directly within ConTeXt. My problem is that some of my existing metapost files call other metapost files which ...
7
votes
1answer
218 views

ConTeXt+MetaPost: Non-conflicting random background and foreground colours

Overview Looking to create a page that has a random (and non-consecutively repeating) background colour with titles that are also random. Problem The code has two problems. First, generating a ...
6
votes
1answer
307 views

MetaPost: Randomly variably thick curves

Overview Looking to emulate the following sinusoidal wave having random variations in both its filled and outline thickness: The wave has two parts: a variably thick filling and a variably thick ...