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Diffstat (limited to 'doc/context/sources/general/manuals/metafun/metafun-text.tex')
| -rw-r--r-- | doc/context/sources/general/manuals/metafun/metafun-text.tex | 218 |
1 files changed, 109 insertions, 109 deletions
diff --git a/doc/context/sources/general/manuals/metafun/metafun-text.tex b/doc/context/sources/general/manuals/metafun/metafun-text.tex index 5cebf549f..135fe7e35 100644 --- a/doc/context/sources/general/manuals/metafun/metafun-text.tex +++ b/doc/context/sources/general/manuals/metafun/metafun-text.tex @@ -708,118 +708,118 @@ In the examples, the text is typeset along the path with: \startbuffer[draw] \startuseMPgraphic{followtokens} - path RotPath ; RotPath := fullcircle ; + path RotPath ; RotPath := fullcircle ; \stopuseMPgraphic \stopbuffer - \startbuffer - \typebuffer[draw] - \startlinecorrection[blank] - \hbox - {\getbuffer[draw,toks]\hskip1cm - \getbuffer[trac,draw,toks]} - \stoplinecorrection - \stopbuffer - - \getbuffer - - \startbuffer[draw] - \startuseMPgraphic{followtokens} - path RotPath ; RotPath := reverse fullcircle ; - \stopuseMPgraphic - \stopbuffer - - \getbuffer - - \startbuffer[draw] - \startuseMPgraphic{followtokens} - path RotPath ; RotPath := (-3cm,-1cm)--(0,1cm)--(3cm,-1cm) ; - \stopuseMPgraphic - \stopbuffer - - \getbuffer - - \startbuffer[draw] - \startuseMPgraphic{followtokens} - path RotPath ; RotPath := (-3cm,0)--(3cm,1cm) ; - \stopuseMPgraphic - \stopbuffer - - \getbuffer - - \startbuffer[draw] - \startuseMPgraphic{followtokens} - path RotPath ; RotPath := (-3cm,0)..(-1cm,1cm)..(3cm,0) ; - \stopuseMPgraphic - \stopbuffer - - \getbuffer - - \startbuffer[draw] - \startuseMPgraphic{followtokens} - path RotPath ; RotPath := (-3cm,0)..(-1cm,1cm)..(0cm,-2cm)..(3cm,0) ; - \stopuseMPgraphic - \stopbuffer - - \getbuffer - - When turned on, tracing will produce bounding boxes as well as draw the path. - Tracing can be turned on by saying: - - \typebuffer[trac] - - % let's turn it off now - - \startMPinclusions - boolean TraceRot ; TraceRot := false ; - \stopMPinclusions - - The next example is dedicated to Giuseppe Bilotta who wants to handle multiple - strings and uses a patched version of \type {\followtokens}. To avoid a - complicated explanation, we will present an alternative here that uses overlays. - This method also avoids complicated path definitions. - - \startbuffer - \startoverlay - {\startuseMPgraphic{followtokens} - draw fullcircle scaled 5cm . - withpen pencircle scaled 1pt withcolor .625yellow ; - draw fullsquare scaled 5.25cm - withpen pencircle scaled 1pt withcolor .625red ; - drawoptions (withcolor .625red) ; - path RotPath ; RotPath := halfcircle scaled 5cm ; - setbounds currentpicture to boundingbox fullcircle scaled 5.25cm ; - \stopuseMPgraphic - \followtokens { Met{\`a} superiore }} - {\startuseMPgraphic{followtokens} - drawoptions (withcolor .625red) ; - path RotPath ; RotPath := halfcircle rotated 90 scaled 5cm ; - setbounds currentpicture to boundingbox fullcircle scaled 5.25cm ; - \stopuseMPgraphic - \followtokens { {$\star$} }} - {\startuseMPgraphic{followtokens} - drawoptions (withcolor .625red) ; - path RotPath ; RotPath := halfcircle rotated 180 scaled 5cm ; - setbounds currentpicture to boundingbox fullcircle scaled 5.25cm ; - \stopuseMPgraphic - \followtokens { Met{\`a} inferiore }} - {\startuseMPgraphic{followtokens} - drawoptions (withcolor .625red) ; - path RotPath ; RotPath := halfcircle rotated 270 scaled 5cm ; - setbounds currentpicture to boundingbox fullcircle scaled 5.25cm ; - \stopuseMPgraphic - \followtokens { {$\star$} }} - \stopoverlay - \stopbuffer - - \typebuffer - - In order to fool the overlay macro that each graphic has the same size, we force - a bounding box. - - \startlinecorrection[blank] - \getbuffer - \stoplinecorrection +\startbuffer +\typebuffer[draw] +\startlinecorrection[blank] +\hbox + {\getbuffer[draw,toks]\hskip1cm + \getbuffer[trac,draw,toks]} +\stoplinecorrection +\stopbuffer + +\getbuffer + +\startbuffer[draw] +\startuseMPgraphic{followtokens} + path RotPath ; RotPath := reverse fullcircle ; +\stopuseMPgraphic +\stopbuffer + +\getbuffer + +\startbuffer[draw] +\startuseMPgraphic{followtokens} + path RotPath ; RotPath := (-3cm,-1cm)--(0,1cm)--(3cm,-1cm) ; +\stopuseMPgraphic +\stopbuffer + +\getbuffer + +\startbuffer[draw] +\startuseMPgraphic{followtokens} + path RotPath ; RotPath := (-3cm,0)--(3cm,1cm) ; +\stopuseMPgraphic +\stopbuffer + +\getbuffer + +\startbuffer[draw] +\startuseMPgraphic{followtokens} + path RotPath ; RotPath := (-3cm,0)..(-1cm,1cm)..(3cm,0) ; +\stopuseMPgraphic +\stopbuffer + +\getbuffer + +\startbuffer[draw] +\startuseMPgraphic{followtokens} + path RotPath ; RotPath := (-3cm,0)..(-1cm,1cm)..(0cm,-2cm)..(3cm,0) ; +\stopuseMPgraphic +\stopbuffer + +\getbuffer + +When turned on, tracing will produce bounding boxes as well as draw the path. +Tracing can be turned on by saying: + +\typebuffer[trac] + +% let's turn it off now + +\startMPinclusions + boolean TraceRot ; TraceRot := false ; +\stopMPinclusions + +The next example is dedicated to Giuseppe Bilotta who wants to handle multiple +strings and uses a patched version of \type {\followtokens}. To avoid a +complicated explanation, we will present an alternative here that uses overlays. +This method also avoids complicated path definitions. + +\startbuffer +\startoverlay + {\startuseMPgraphic{followtokens} + draw fullcircle scaled 5cm . + withpen pencircle scaled 1pt withcolor .625yellow ; + draw fullsquare scaled 5.25cm + withpen pencircle scaled 1pt withcolor .625red ; + drawoptions (withcolor .625red) ; + path RotPath ; RotPath := halfcircle scaled 5cm ; + setbounds currentpicture to boundingbox fullcircle scaled 5.25cm ; + \stopuseMPgraphic + \followtokens { Met{\`a} superiore }} + {\startuseMPgraphic{followtokens} + drawoptions (withcolor .625red) ; + path RotPath ; RotPath := halfcircle rotated 90 scaled 5cm ; + setbounds currentpicture to boundingbox fullcircle scaled 5.25cm ; + \stopuseMPgraphic + \followtokens { {$\star$} }} + {\startuseMPgraphic{followtokens} + drawoptions (withcolor .625red) ; + path RotPath ; RotPath := halfcircle rotated 180 scaled 5cm ; + setbounds currentpicture to boundingbox fullcircle scaled 5.25cm ; + \stopuseMPgraphic + \followtokens { Met{\`a} inferiore }} + {\startuseMPgraphic{followtokens} + drawoptions (withcolor .625red) ; + path RotPath ; RotPath := halfcircle rotated 270 scaled 5cm ; + setbounds currentpicture to boundingbox fullcircle scaled 5.25cm ; + \stopuseMPgraphic + \followtokens { {$\star$} }} +\stopoverlay +\stopbuffer + +\typebuffer + +In order to fool the overlay macro that each graphic has the same size, we force +a bounding box. + +\startlinecorrection[blank] +\getbuffer +\stoplinecorrection \stopsection |