Questions tagged [metapost]
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}.
497
questions
3
votes
1
answer
58
views
MetaPost - Tangent line between two paths
I'm trying to make a function that given 2 paths would draw all the lines that are common tangents of them.
More specifically I was trying to draw the common tangent of 2 ellipses so that it would ...
1
vote
1
answer
78
views
ConTeXt: Pass text value into text background graphic
Background
Looking to draw dynamically-derived text as a "legend" for a paragraph that spans multiple pages.
Version: 2023.07.18 22:07
Problem
The text doesn't appear where desired.
Code
...
- 11.4k
0
votes
1
answer
140
views
ConTeXt: Round corner for fieldset with title
Background
I'm looking to stylize an HTML fieldset-like environment to would allow consecutive "concurrent" sections to appear in the document.
Using version 2023.07.18 22:07.
Output
Example ...
- 11.4k
5
votes
3
answers
239
views
2
votes
1
answer
34
views
How to treat files generated by mfplain?
Metapost can treat Metafont sources with mfplain.
Example:
mpost -mem=mfplain cmr10.mf
Then each glyph is output in separate file like this:
cmr10.0
cmr10.1
cmr10.2
...
I cannot find any tutorial ...
- 1,282
1
vote
1
answer
69
views
Best ways to draw geometric shapes given "partial" information
I am trying to draw geometric shapes given only "partial" information.
Let me show you some examples with triangles:
Construct a triangle ABC such that ∡CAB=75°, d(A,B)=40 and d(C,A)=60.
...
user213111
1
vote
1
answer
85
views
How to define a function in metapost that draw graph based on a string?
In algebraic topology, we need to draw polygon with label that indicate the identification of edges. For example,
shows the glue of $a_1$ and $a_1$ along the arrow.
My question is how to define a ...
- 1,585
5
votes
1
answer
197
views
Bisectors the good old compass way
I am trying to reproduce the construction of bisectors with compass.
Here is what I managed to get so far
vardef bisector(expr A, O, B, r) =
save arc, E, F, I;
path arc[] ; pair E, F, I[];
% ...
user213111
1
vote
1
answer
32
views
MetaPost textual does not operate with luamplib
The code
picture tex_pct;
tex_pct:=btex Too baffled etex scaled 3;
for tkn within tex_pct:
if textual tkn:
show "textual";
fi
endfor
end.
compiled with mptopdf shows 4 "...
- 155
0
votes
0
answers
50
views
how can I achieve a similar effect in ConTeXt
I am completely new to ConTeXt and have just started to experiment with writing metapost directly within ConTeXt. In Latex , I can use the tcolorbox macro package to achieve the effect of output on ...
- 129
4
votes
1
answer
143
views
How to achieve the effect of tcolorbox macro package in ConTeXt？
I am completely new to ConTeXt and have just started to experiment with writing metapost directly within ConTeXt. In Latex , we use the tcolorbox macro package to achieve the effect of code on the ...
- 129
4
votes
3
answers
104
views
Browse all path of an text picture with MetaPost
I want to perform a loop (type within) on all the paths of a text. I tried to build a picture with btex ... etex but it seems that this kind of picture has only one element (length gives 1). I want ...
- 155
0
votes
1
answer
143
views
Drawing polygons with MetaPost
To draw different kinds of polygons, I use the following code modified from the answer to this post. The original code was designed to draw pentagons.
As noticed, when applying this modified code ...
- 4,637
2
votes
1
answer
49
views
Line from lower left to upper right corner of page with metapost
I have this example where I want to draw a line in the background from corner to opposite corner of the page using metapost, The problem is that the line does not reach both ends, and I cannot figure ...
- 16.8k
1
vote
1
answer
82
views
Colored math expression metapost
Is there a way in metapost to print a single label (in math notation) like this one
label(btex \Large{$3$} etex,(2,-1));
using some specific color like red or blue?
Thank you in advance.
- 167
1
vote
1
answer
64
views
luamplib creates unexpected files
I compile the following file test.tex
\documentclass{article}
\usepackage{fontspec}
\usepackage{luamplib}
\begin{document}
\begin{mplibcode}
input metauml;
beginfig(1);
Note.xxx("Hello"...
- 395
3
votes
1
answer
88
views
Extract digits from a number in a metapost plot
Given a possibly big integer (up to $10^12$ or more) is there a way to print the digits of that number in fixed position using metapost? For example given the number 123456789 or 2365411111 is it ...
- 167
1
vote
1
answer
67
views
How to color bottom in rectuangular 3d box
I got code from this website. I want to fill bottom in 3D magenta color. How to do that?
\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{arrows.meta}
\begin{document}
\begin{tikzpicture}...
- 125
1
vote
1
answer
81
views
Is it possible to convert color to array?
I am trying to figure out if it is possible to convert colors to arrays with {red|green|blue}part and this macro
vardef arrayFromColors(suffix $)(text c) =
save i_ ; i_ = 0 ;
numeric $[][] ;
for ...
user213111
0
votes
1
answer
82
views
How to change the font of a MetaPost?
I have the following code in order to create a UML diagram with MetaUML:
\begin{mpost}[mpsettings=input metauml;]
Class.Task("Task")
(
"-id: long",
"-name:...
- 3
0
votes
1
answer
128
views
Drawing Phase Diagrams Using MetaPost
I wanted to take the solution provided by @Thruston at phases (stages) of economic cycle. However, when I copied and pasted the first block of code provided as a solution in English, I could not get ...
- 600
15
votes
2
answers
961
views
Is Metapost still relevant in the age of Lua etc.?
Disclaimer: I am not sure if I am "allowed" to ask such a question, but I was also not sure if it belongs to Meta instead.
Often when somebody asks a tikz-focussed question, some users ...
3
votes
1
answer
86
views
Determine whether a path in Metapost/Metafont is a line
Given an already defined path p in Metapost/Metafont: How can I determine whether a segment like subpath (0,1) of p is a line?
I am aware that I can simply check if the control points lie on the line (...
- 563
2
votes
0
answers
107
views
Making vector fonts from metafont sources in LuaTeX?
According to the presentation "TUG 2020 — Marcel Krüger — MetaPost-based, dynamic extensible delimiters for LuaTeX" it is possible to generate "fully hinted, vector glyphs" from (...
- 1,282
0
votes
3
answers
43
views
My charts in Metapost are at different scales. How I can improve it?
I have a little problem with my Metapost graphics. My charts are at different scales.
I will attach an example of how it looks on the page.
On the second graph, you can clearly see its name and the os ...
3
votes
1
answer
83
views
Why does pensquare end lines at an angle?
For example:
path p[];
p1 := (0,0)--(5cm,0)--(5cm,5cm);
p2 := p1 shifted (7cm,0);
p3 := p2 shifted (7cm,0);
p4 := p3 shifted (7cm,0);
p5 := p4 shifted (7cm,0);
linecap := squared;
pickup pencircle ...
- 269
7
votes
1
answer
188
views
How do I create a pen that only draws on the right side of the path?
Let's say I have a path that represents the inside dimensions of a room. I would like to draw a thin line representing that inside space. But I would also like to draw the thickness of the walls. The ...
- 269
1
vote
1
answer
169
views
Unable to read mpx file
This is file of LaTeX:
verbatimtex
\documentclass[a4paper, 12pt]{article}
\usepackage{amsfonts, amssymb, longtable, verbatim}
\usepackage[utf8]{inputenc}
\usepackage{cmap}
\usepackage[T2A]{fontenc}
\...
- 13
3
votes
1
answer
61
views
Is there a way to output SVG from MetaPost with all the fonts outlines?
Suppose, there's an arbitrary .mp file which produces an image with some TeX text labels, e.g.:
outputtemplate := "test.svg";
outputformat := "svg";
beginfig (1);
draw ...
- 1,287
1
vote
2
answers
92
views
Metapost in LaTeX (gmp package) - not working
I try to use metapost code inside LaTeX, and I only receive MP Icon insted of dediecated picture:
example of code which I want to produce:
\documentclass[]{article}
\usepackage[T1]{fontenc}
\...
1
vote
2
answers
67
views
Mixed cut{after,before} keep line from fullcircle
I have a very simple code to get the angle from two vectors made of three points, that uses cutafter and cutbefore.
vardef arc(expr o,a,b) =
path c, d, e ;
c = fullcircle scaled u shifted o ;
d ...
user213111
2
votes
1
answer
121
views
How to expand a variable
I am not sure about the title of this question but here is the context.
Let's say I have two colors defined as follow
color red ; red = (1, 0, 0) ;
color lightred ; lightred = (1, .5, .5) ;
...
user213111
2
votes
1
answer
59
views
Scaled a path without losing its center position
path p ;
p = (1u,1u) -- (1u,3u) -- (3u,3u) -- (3u,1u) -- cycle ;
draw p ;
draw p scaled 2 withcolor red ;
The center of the red square is moved from (2,2) to (4,4) but I want it to stay at (2,2).
Of ...
user213111
2
votes
2
answers
81
views
How to draw/fill any path around labels?
Is there any way to draw and/or fill any path around labels in MetaPost/MetaFun?
According to the manual (page 27) we can use fill/unfill with bbox and thelabel, however there is nothing about, let's ...
user213111
0
votes
0
answers
46
views
Can I create function in MetaPost? [duplicate]
There are function in programming languages, for example
function f(int x){ return x*x; }
Can I use something similar in MetaPost?
- 13
0
votes
0
answers
47
views
Call metapost with command line arguments through shell-escape; then include the resulting graphics
I would like to use metapost to draw long curved lines and overset the resulting images over long subformulas instead of relatively short widetilde.
Would be great if I can choose not from the set of ...
- 375
0
votes
1
answer
68
views
Fill an angle using Metapost
How to fill angle using intersectionpoint and intersectiontimes primitives ?
\documentclass[border=5mm]{standalone}
\usepackage{luamplib}
\begin{document}
\mplibtextextlabel{enable}
\begin{...
- 3,596
3
votes
2
answers
82
views
fill a circularpath around point 0
I am trying to fill a portion near point 0 of a circularpath.
path circle ; circle = circularpath(10) scaled 200 ;
pair a, b ; a = point 35 of circle ; b := point 5 of circle ;
fill buildcycle((...
user213111
10
votes
2
answers
217
views
Why changing the catcode of : cause epsfbox to fail?
I have the following very simple TeX file:
\input epsf
\catcode`\:=\active\def:{\thinspace\string:}
a: b
\centerline{\epsfbox{test.1}}
\bye
with test.mp containing
beginfig(1);
draw (0,0) -- (100,...
user282907
0
votes
1
answer
74
views
Metapost figures with ttf fonts via XeLaTeX
I use Metapost to create pdf figures to include in the book I am writing. I usually create pdf files with the command TEX=latex mpost figure.mp and then I convert the output files figure.1, figure.2 ...
- 697
1
vote
1
answer
136
views
Create tick marks on a segment
The idea is to reproduce the figure such that point U has abscissa -5/7 and point P has root 13. My practice of Metapost is not sufficient to finish the figure.
\documentclass[border=5mm]{...
- 3,596
3
votes
2
answers
210
views
Vector Field in Metapost
I would like to recreate this graph in Latex, but I saw it complicated so I was inclined to do it in Metapost:
s:=1.5cm ;
vardef u(expr x,y) = (y+x*x-0.25*x*(y-1+2*x*x)) enddef ;
vardef v(expr x,y) = ...
- 561
7
votes
2
answers
280
views
Strange mod operator behavior in metapost
I am currently facing a strange behavior of the metapost mod operator.
Here is a simple piece of code:
\startMPcode
for x = 0 step .5 until 10:
if (x mod 1) = 0.5: label.top(x, (x*cm, 0cm)) ;...
user213111
1
vote
2
answers
78
views
Fill in Metapost Figure constructed in FOR loop
I'm trying to create a wheel cog in Metapost that I would like fill in with a color. I came up with this code:
vardef sin(expr xx) = sind(xx) enddef;
vardef cos(expr xx) = cosd(xx) enddef;
beginfig(1)
...
- 57
1
vote
2
answers
68
views
filling an area between curves using metapost
How could I fill the area between p2 and p3 ? I tried using the buildcycle macro but it didn't work.
path p[];
p1 = fullcircle xscaled 1.2in yscaled 0.6in;
p2 = (-1cm, 0)..(0cm, -0.2cm)..(1cm, 0) ...
- 125
0
votes
1
answer
37
views
How to use minted inside metapost
When I try to use minted with metapost (using luamplib)
\begin{mplibcode}
beginfig(3);
picture P;
P = thelabel(btex \vbox{\begin{minted}{c++}
int main() { return 0; }
\end{minted}}...
- 125
0
votes
1
answer
150
views
Tikz Adjustment of selfsimilar sets [closed]
I have found open source figures of fractals in a PDF document and I like the presentation and style of these fractals. Now I wanted to create similar fractals, maybe the Koch curve or the Cantor set ...
2
votes
0
answers
97
views
Metapost not centering label in circle
I'm working on a document created in Plain TeX that contains many figures created with Metapost. Many are letters centered in a circle.
With a recent upgrade to: MetaPost 2.00 (Web2C 2021) the text ...
- 57
1
vote
1
answer
142
views
Drawing 2d and 3d vectors using lua or luamplib in LaTeX
Here is the tikz code using which vectors can be drawn.
\documentclass{article}
\usepackage{tikz}
\usepackage{tikz-3dplot}
\usepackage{amsmath}
\begin{document}
\tdplotsetmaincoords{60}{120}
\begin{...
- 1,729
0
votes
1
answer
94
views
Dance of Planets in geocentric system in TikZ/PGF
Im using code from
Dance of Venus (and variations) in TikZ/PGF
Im using
\documentclass[border=5mm]{standalone}
\usepackage{luamplib}
\begin{document}
\begin{mplibcode}
beginfig(1);
draw for t=0 ...
