gardener, Interface administrators, Administrators
1,540
edits
Changes
Jump to navigation
Jump to search
m
In [http://source.contextgarden.net/tex/context/base/core-mis.tex core-mis.tex] there are some hand command You can use the commands for graphical text manipulation defined, but also for graphics or other “building blocks”.
TODOThe {{cmd|scale}} command is all-purpose, you can scale by factors or to a defined size.
<texcode>
There is a \mirror{\sl mirorred} word in this sentence.
</texcode>
<code>\{{cmd|mirror</code> }} makes a <code>\hbox</code> and mirrors the contents. If you want to have a longer paragraph mirorredmirrored, you have to make a <code>\vbox</code> manually. <context source=yes>\mirror{\vbox{Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do: once or twice she had peeped into the book her sister was reading, but it had no pictures or conversations in it, \quote{and what is the use of a book,} thought Alice \quote{without pictures or conversation?}}}</context>
(TODO: an example)= Rotating =
== \You can {{cmd|rotate ==}} something by an arbitrary angle like
You can rotate something by an arbitrary angle by saying something like <texcodecontext source=yes>
</texcode>.<context>\rotate[rotation=42]{the ultimate answer}</context>.
An example by Hans Hagen showing the influence of <code>location=</code> argument at different angles:=Location parameter==
You can <context source="yes">\useMPlibrary[dum]\setupexternalfigures[width=4em,height=3em,frame=on,]\dostepwiserecurse{0}{359}{45}{{\bf\recurselevel˚}\quad \doloopoverlist{normal,depth,fit,broad,high,middle}{ \dontleavehmode\ruledhbox{% \rotate a long paragraph as well.[rotation=\recurselevel, location=\recursestring]{% \externalfigure[\recursestring] }% }% }\par}</context>
[example]==In a box==
a\rotate{e}i\par<context source="yes">a\rotateclip[width=3cm, height=1cm, hoffset=1cm, voffset=5mm]{\hbox{e}externalfigure[cow][width=5cm]}i
== \crop ==
TODO (defined at some other place)=Further reading= Graphic transformations are implemented in [https://source.contextgarden.net/tex/context/base/mkiv/grph-trf.mkiv grph-trf.mkiv] and [https://source.contextgarden.net/tex/context/base/mkiv/grph-trf.lua grph-trf.lua]. [[Category:Basics]][[Category:Graphics]]
Scaling Rotating Mirroring Clipping (view source)
Revision as of 19:35, 1 May 2022
, 19:35, 1 May 2022→Rotating: add mirror
== \scale =Scaling=
As a special case, you can insert symbols at a reduced size in the text flow using {{cmd|getscaledglyph}}. <context source== yes>\getscaledglyph{.5}{Serif}{a} a \mirror ==getscaledglyph{2}{Serif}{a}</context>
= Mirroring =<contextsource=yes>There is a \mirror{\sl mirorred} {\sl word } in this sentence.
</context>
\rotate[rotation=42]{the ultimate answer}
The rotation angle and the location (which determines around which point the content is rotated) are optional and can also be set by
<texcodecontext source=yes>
\setuprotate[rotation=42,location=normal] % normal is the default
\rotate{the ultimate answer}
</texcodecontext> <context source=yes>\ss Next generation L\rotate{m}\rotate{m}TSP\mirror{3}Al\rotate[rotation=270,location=high]{v}?</context> You can rotate a long paragraph as well.
The influence of <texcodecode>\dostepwiserecurse{0}{359}{45} {\startlinecorrection[blank] \hbox {\expanded{\setuprotate[rotation=\recurselevel]}% \traceboxplacementtrue \hbox to .2\hsize{\hss\ruledhbox{\rotate[location=depth] {\ruledhbox{\bfb (depth)}}}}% \hbox to .2\hsize{\hss\ruledhbox{\rotate[location=fit] {\ruledhbox{\bfb (fit)}}}}% \hbox to .2\hsize{\hss\ruledhbox{\rotate[location=broad] {\ruledhbox{\bfb (broad)}}}}% \hbox to .2\hsize{\hss\ruledhbox{\rotate[location=normal]{\ruledhbox{\bfb (normal)}}}}% \hbox to .2\hsize{\hss\ruledhbox{\rotate[location=high] {\ruledhbox{\bfb (high)}}}}} \stoplinecorrection}</texcodecode>at different angles:
<contextsource=yes>\setuplayout[location=middle,scale=.5]
\dostepwiserecurse{0}{359}{45}
{\startlinecorrection[blank]
</context>
=== Rotating Figures === The following code shows how the location parameter influences rotation with a frame: <texcode>\setupbodyfont[some more comments to be addedsans, 30pt]\setuppagenumbering[location=,]\showframe \starttext \topskip4cm \dostepwiserecurse{0}{360}{10}{\doloopoverlist{normal,default,depth,fit,broad,high,middle}{\ruledhbox{\rotate[rotation=\recurselevel, location=\recursestring]{%\framed [width=\textheight, height=\textwidth, rulethickness=5pt, depth=0cm, foregroundstyle=\bfd] {\recursestring, \recurselevel°} } } }}\stoptext</texcode> or, even nicer:
Depending on the usage you will sometimes probably want to include the content of what you wish to rotate into a box. Compare the following two examples:
<texcodecontext source=yes>
\setuplayout[width=3cm]
\setuprotate[rotation=180,location=broad]
a\rotate{e}i\par
a\rotate{\hbox{e}}i
</context>
==Page dependent landscape figures==
Sometimes, in a double-sided portrait document, you may wish to rotate a landscape figure so that the top is towards the spine of the book – no matter whether it’s on an odd or even page. In this case the {{cmd|doifoddpageelse}} command can help:
<texcode>
\rotate[rotation=\doifoddpageelse{90}{270}]{\externalfigure[cow]}
</texcode>
This example is by Wolfgang, from [http://www.ntg.nl/pipermail/ntg-context/2011/059834.html the thread starting here]. The thread contains other solutions to the problem. =Clipping= You can adjust the size of an element by cropping/clipping its borders: <contextsource="yes">\setuplayoutclip[widthnx=3,ny=3,x=3cm1,y=1]{\externalfigure[cow]}</context> <context source="yes">\setuprotatedefinedfont[rotationSansBold at 20mm]\baselineskip 0pt % switch off the space between the stripes\lineskip 0pt\def\MyLogo{\vbox{\hbox{\CONTEXT}\null}} % null is necessary for the whole bounding box\clip[ny=3,y=1]{\color[yellow]{\MyLogo}}\clip[ny=1803,locationy=broad2]{\color[orange]{\MyLogo}}\clip[ny=3,y=3]{\color[red]{\MyLogo}}</context> And here’s how to cut out a piece by measures (see also {{cmd|setupclipping}} and {{cmd|clip}}):
</context>
