Questions tagged [metafun]
MetaFun is Hans Hagen’s extension to (or module for) the MetaPost language.
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What does begingroup/endgroup actually do?
I've started to notice that all my MetaPost/MetaFun figures are surrounded by
begingroup ;
endgroup ;
Probably because I put that here when I wrote my snippet... But the fact is, I never actually ...
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2
votes
1
answer
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How to properly input mp files in MetaFun?
In my ConTeXt project I have a long .mp file that I want to divide into several sub-files and make it library-like. For that purpose I load the initial file with
\startMPinclusions
input path/to/...
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3
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1
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Are boolean operations on shapes possible in MetaPost/MetaFun?
I am currently facing a, probably, simple problem. Problem which I couldn't find any satisfying solution.
For this example, let's say that I have a simple square and that I what to "remove" ...
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1
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1
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97
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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
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1
answer
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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
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0
answers
199
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How do you draw a basic line with ConTeXt and METAFUN?
I was able to draw a basic line, however I am still have this feeling of having hit another pebcak… 🤔
This is my line:
\startMPcode
path line ; line := (0mm,0cm)--(5cm,0cm) ;
draw line ...
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3
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1
answer
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Is it possible to use shades with draw macros?
Is it possible to achieve shades (linear, circular, etc.)
with the draw macros (draw, drawarrow, etc.)?
I tried with the following code but it fails by returning a blank page.
\startMPpage
path p ; ...
user213111
2
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2
answers
105
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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
3
votes
2
answers
93
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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
2
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3
answers
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MetaFun: Align "bounding box" of strings of different length
I'm currently getting into ConTeXt, mainly to experiment with MetaFun. I want to get a feeling for how usable it would be to generate some sophisticated diagrams I have in mind. I have a hard time to ...
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Spread graphics on multiple pages with MetaFun in ConTeXt
I am currently refactoring my document and notice many MetaPost graphics that I would like to draw bigger, typically on two pages without any layout borders. Is there an easy way to do that in ConTeXt?...
user213111
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2
answers
318
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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
2
votes
2
answers
240
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An oval surrounded a *long text* inside in TikZ [equivalent cover background of METAFUN]
I need to put long text in an oval like this:
I try to put a simply text inside an oval, but it does not work (the text overflows the oval). So I guess I need an oval around a text.
I have this code ...
- 783
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1
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148
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Fit all given points in the patatoid
I am trying to adapt this metapost patatoid generator to fit a list of pairs given to a macro.
To that purpose I loop through the list of pairs and determine the greatest x and y distances between all ...
user213111
4
votes
2
answers
349
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Set precise label position in metapost
Is there any option(s) in METAPOST (and/or METAFUN) to label things like TikZ allows it for nodes?
Of course I know about label.{top|bot|lft|rt|...} but is there something more precise?
user213111
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3
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Adding Column Rules in ConTeXt's columnsets / pagecolumns
This is my first time playing with ConText and, while I'd like to think I have some decent programming experience, TeX code is something I've never worked with before (and am sufficiently intimidated ...
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4
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1
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ConTeXt: How to change parts and chapters pages background color with MetaFun?
I am trying to reproduce something like this for parts and chapters with MetaFun:
Placing the content on the page is simple so I am trying to get the colored background. However I do not know how to ...
user213111
2
votes
1
answer
140
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Dynamically defining metafun positional variables with \structurelistuservariable in ConTeXt
Following on from this question, I am now trying to achieve the same effect (drawing with metafun in the TOC, from the section number to the edge of the page) using positional overlays instead.
...
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4
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1
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Drawing from a framed overlay to the page edge in ConTeXt and Metafun
Using ConTeXt for typesetting and metafun to draw, I would like to create a custom colored overlay for my table of contents. I want to fill a colored rectangle for certain TOC entries that stretches ...
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2
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236
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Using sans as a default font in ConTeXt Metapost
When using metapost in ConTeXt, I would like to have all my labels in sans by default. Which option can configure it and which environment should I use to pass it (MPinclusions?)
I am aware of this ...
- 3,154
3
votes
2
answers
499
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Convert numeric into a Roman Numeral inside a metafun loop
How can I automatically convert a number inside a metafun loop?
I tried using MPvar but this doesn't work.
\starttext
\startMPpage
for i=1 upto 10:
label (i,(10i,0));
label ("\convertnumber{...
- 3,154
1
vote
1
answer
241
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Fill all elements of a METAPOST array
I would like to fill paths of arrays of arbitral length using a loop.
Is there a way to iterate the fill operator on each array element, something equivalent to this shell loop
set -A Test foo bar
for ...
- 3,154
2
votes
2
answers
316
views
ConTeXt: Fontawesome symbols with MetaFun
I am trying unsuccessfully to pass fontawesome symbols as variable to MetaFun.
I tried things like, passing the symbol directly through the variable
\usesymbols [fontawesome]
\startuniqueMPgraphic{...
user213111
3
votes
2
answers
333
views
ConTeXt: How to force text to fit in a MetaFun box?
How to make text fit in a MetaFun box with specific width ?
For now I have
\startuseMPgraphic{MPBoxFrame}
% Useful values
numeric w, h, o, b ;
w := 4.5cm ; h := OverlayHeight ; o := ...
user213111
5
votes
1
answer
658
views
Questions about fancyboxes in ConTeXt with MetaFun
I'm trying to reproduce something like that with MetaFun:
For now with these links, I managed to get that:
\definecolor[darkblue][r=20,g=30,b=50]
\startuseMPgraphic{MPTheoremFrame}
% Useful ...
user213111
2
votes
1
answer
312
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Why does this example from the MetaFun manual not work?
[Question also asked on the ConTeXt mailing list but no answer yet so it's probably complicated enough to get an answer, hence repeated here]
I would like to use the result of transparent() straight ...
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2
votes
2
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204
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Trouble getting curly braces printed from METAPOST code generated by ConTeXt Lua (with minimal example)
[Question also asked on the ConTeXt mailing list, I'll post a solution from either in the other] The following minimal example illustrates my problem. I need to typeset a generic string (which is read ...
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1
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94
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Why does this syntax outputs an error under METAFUN/METAPOST?
Given this MWE (compiled under ConTeXt)
\starttext
\startMPpage
%variables
u:=1mm ;
numeric l[];
l[1]:=30 ;
l[2]:=70 ;
draw (0,0) -- (0,100u) ;
%this does not work
%fill unitsquare xscaled (l[2]-l[...
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1
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165
views
How to align text on baseline in MetaFun without using setMPtext?
I want to draw several pieces of text that should be aligned so I need to be able to place these texts according to their baseline.
Looking at the MetaFun manual, pages 143-144, it is explained that ...
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1
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323
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ConTeXt: Heading text surrounded by lines
I'd like to replicate this heading style in ConTeXt:
The closest I've come is surrounding a centered text with \thinrules but those are at the baseline of the text instead of horizontally centered ...
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4
votes
1
answer
492
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Cover page coloring in ConTeXt
How would I go about coloring the top and bottom of a page in ConTeXt/Metafun?
Currently I am using this code
\definecolor [Top] [h=00ff00]
\definecolor [Bottom] [h=ff0000]
\definecolor [TitleColor]...
2
votes
3
answers
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metapost " missing `,' has been inserted." compilation error
I'm quite new to this language and can't figure out the error in following code. Any help would be appreciated !
verbatimtex
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{mathptmx}
\...
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Help with MetaPost and Metaobj with latex
Kind help with two examples to do metapost and metaobj in latex running from Texicenter.
what packages to include and program two examples
I read through book not able to understand.
First
input ...
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2
answers
541
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ConTeXt and Metafun: Framed enumeration with counter as part of overlay
How do you make an enumeration where the enumeration counter appears within a frame decorated with Metafun?
The idea is to have something similar to an example on pg. 144 of the Metafun manual:
...
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5
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1
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314
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ConTeXt and Metafun: Using environment variables inside overlay
I would like to draw a custom frame for the framed environment using Metafun. I am currently hard-coding the frame color within the Metafun definition. However, I would like the Metafun frame to ...
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1
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221
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ConTeXt: Multiple colour stops for linear_shade
Background
Looking to parameterize a horizontal rule (for headers and footers) that has three colour stops (A to B to C) and a variable thickness. For example:
Single Stop Code
The following code ...
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12
votes
0
answers
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metafun: Why is the arrow tip not filled? [closed]
Trying out another example I saw that with the metafun format (luatex version) the arrow tips are no longer filled. The following document (to be compile with lualatex) shows the problem:
\...
- 334k
6
votes
1
answer
205
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Metapost graphics not aligned in ConTeXt TABLE
I am using TABLE to design map legend. Symbols should be middle-aligned.
As said in the title, the metapost graphics used as symbols are not aligned in my TABLE environment (column 1 and 3), whereas ...
- 3,154
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339
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expand string array in loop with label
I would like to expand one string array in a short metafun loop.
Each box should be labelled with the appropriate string ("classicism", "Lumières", "romanticism"). How can I make the label function, ...
- 3,154
4
votes
1
answer
540
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Metafun: relative positioning of points and paths
I've read through most of the Metafun manual, but I can't seem to find any mention of a relative positioning system. I have two use cases in mind. First, I would like to position points along a path ...
- 1,748
3
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1
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376
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Using Metapost for titles in Context
I'd like to use Metapost to format my titles like this (not exactly like this, so no need to complain about design issues :)):
The problem is that when I try to use the following macro I get an error:...
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2
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1
answer
341
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Integrating lua-generated Metapost graphics in Context
Normally we can integrate Metapost graphics in Context with the use of \startuseMPgraphic{id} and \useMPgraphic{id}. The idea is to define the graphics somewhere and use them somewhere else. However, ...
- 75
2
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1
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490
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Compile metafun book with ConText (getting a cover-like)
Anyone knowns how to create (please sample code) a cover page like this?:
http://context.aanhet.net/general/manuals/metafun-p.pdf
The sources are available from:
http://context.aanhet.net/svn/...
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3
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527
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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
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2
answers
2k
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How to insert (if possible) an image inside a Metapost figure? (in plain LaTeX environment)
I'd like to insert an image into a Metapost figure (I'm using MikTeX/LaTeX, no Metafun). I hopefully tried (also thanks to Aditya's suggestion) the following Metapost code (compiled with -tex=pdftex ...
10
votes
1
answer
819
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How to fix this fancy heading in ConTeXT
I don't know if this is a duplicate or not but we can close it if it is.
I have been trying to learn ConTeXt. I specially love the heading and page number formattings that I see in the documentations ...
- 17.4k
11
votes
1
answer
541
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How to debug METAPOST inlined in ConTeXt? (Or "message" primitive and "loggingall;" in inlined METAPOST)
I have a METAPOST program that works fine with mpost, but fails when I try to run it inline in ConTeXt. In order to debug it, I would like to see the usual METAPOST logging and/or to use the METAPOST "...
- 721
6
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2
answers
1k
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Metapost - Boundary box
I want to make a series of images with Metapost and Context. I want the height and width of the images to be fixed ( like a frame ) and center the picture drawn with Metapost inside that frame. So, is ...
- 145
7
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1
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2k
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How to install metafun?
How can I install the metafun metapost macros?
I have tried to tlmgr install metafun, but it cannot find it. Also a search for “metafun” on ctan yields only a introductory tutorial on ConTeXt, in ...
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