Changes

In [http://source.contextgarden.net/tex/context/base/core-mis.mkii core-mis.mkii] ([http://source.contextgarden.net/tex/context/base/core-mis.mkiv core-mis.mkiv] for MkIV) there are some handy You can use the commands for graphical text manipulation defined, but also for graphics or other “building blocks”.

== \scale =Scaling=

You The {{cmd|scale}} command is all-purpose, you can insert symbols at scale by factors or to a reduced defined size in the text flow. This example creates a filled square scaled to .5 ex height

<texcode>\definefontsynonym[Dingbats][uzdr]\definesymbol[filledSq][\getglyphAs a special case, you can insert symbols at a reduced size in the text flow using {Dingbats{cmd|getscaledglyph}{\char110}]\def\FilledSquare% {\dontleavehmode\scale[height=0.5ex]{\symbol[filledSq]}}</texcode>

In TeX terms, \scale creates a \hbox. If TeX is in vertical mode (as it is when \startlines is in effect, because every lineis a paragraph by itself in the mode), then a simple \hbox is not a good enough hint to make it switch to horizontal (paragraph) mode.  Hans then posted a simpler way.<texcodecontext source=yes>\getscaledglyph{.5}{Serif}{a} a \getscaledglyph{2}{Serif}{a}</texcodecontext>

== \mirror =Mirroring = <texcodecontext source=yes>There is a \mirror{\sl mirorred} word in this sentence.</texcode> <context>There is a \mirror{\sl mirorredword} word in this sentence.

<code>\{{cmd|mirror</code> }} makes a <code>\hbox</code> and mirrors the contents. If you want to have a longer paragraph mirrored, you have to make a <code>\vbox</code> manually.

<texcodecontext source=yes>

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?'}}}</texcodecontext> 

== \You can {{cmd|rotate ==}} something by an arbitrary angle like

An example by Hans Hagen showing the <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. ==Location parameter== The influence of <code>location=</code> argument at different angles:

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>

<texcodecontext source=yes>

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:<ref>Please, don’t forget that clipping only displays a part of an image. At least when this comes from a PDF document, the whole page has to be included, although only part of it is displayed.<contextbr/>\setuplayout[width=3cm]The PDF output from the following sample contains <code>hans hagen, pragma ade</code>. Depending on your PDF viewer, you may be able to search for it.<br/>\setuprotate[rotation=180Of course, you will have to compile the source yourself,location=broad]since the wiki will only contains PNG images from compilations.

a<context source="yes">\rotate{e}isetuppapersize[A5, landscape]\setuplayout[page]\parstarttexta\rotateclip[nx=3,ny=3,x=1,y=1]{\hbox{eexternalfigure[xml-mkiv.pdf]}}i\stoptext

 == \clip ==(This is not just about text manipulation...)</ref>

\clip[ny=3,y=1]{\color[yellow]{\MyLogo}}\clip[ny=3,y=2]{\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 source="yes">\clip[width=3cm, height=1cm, hoffset=1cm, voffset=5mm]{\externalfigure[cow][width=5cm]}

see also <cmd>setupclipping<=Further reading= Graphic transformations are implemented in [https:/cmd> /source.contextgarden.net/tex/context/base/mkiv/grph-trf.mkiv grph-trf.mkiv] and <cmd>clip<[https://source.contextgarden.net/tex/context/base/mkiv/cmd>grph-trf.lua grph-trf.lua]. =Footnotes= [[Category:Basics]][[Category:Graphics]]