MPpositiongraphic: I don't know when it's going to work and when it's not.
Hi, Can you help me with the two examples below, and also tell me how I could have found out myself when it should have worked and when it shouldn't: because until now, it is a mix of wild guess and poor trial and error. %%%%%% First example %%%%%%% \starttext %% This example doesn't work anymore if I comment the %% indicated line below. \defineoverlay[my first overlay][\uniqueMPgraphic{first demo}] \defineoverlay[my fourth overlay][\positionoverlay{my backgraphics}] \startpositionoverlay{my backgraphics} \setMPpositiongraphic{three}{mypos:circle}{mypos:circleradius=1cm,mypos:circlecolor=red} \setMPpositiongraphic{three}{mypos:circle}{mypos:circleradius=.5cm,mypos:circlecolor=green} \stoppositionoverlay \setupbackgrounds[paper][background={ my first overlay, %% Doesn't work anymore if I comment this line. my fourth overlay}] % These two lines can be removed without consequences \startuniqueMPgraphic{first demo} \stopuniqueMPgraphic \startMPpositiongraphic{mypos:circle} % absolute coordinates relative to paper by default? numeric x, y, w, h, d, radius; x = \MPx{\MPvar{self}}; y = \MPy{\MPvar{self}}; w = \MPw{\MPvar{self}}; radius = \MPvar{mypos:circleradius}; color c; c = \MPvar{mypos:circlecolor}; path p ; p = (x+w/2+radius,y)..(x+w/2,y+radius)..(x+w/2-radius,y) ..(x+w/2,y-radius)..cycle; drawarrow p withpen pencircle scaled 2pt withcolor c; \stopMPpositiongraphic have attached it: \hpos{three}{{\em here}}, the \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%% Second example %%%%%%%% \starttext %% This example doesn't work. Though it looks very much like the previous one. %% The overlay is attached to the backgound of a framed instead of to the %% background of the page. \defineoverlay[my first overlay][\uniqueMPgraphic{first demo}] \defineoverlay[my fourth overlay][\positionoverlay{my backgraphics}] \startpositionoverlay{my backgraphics} \setMPpositiongraphic{three}{mypos:circle}{mypos:circleradius=1cm,mypos:circlecolor=red} \setMPpositiongraphic{three}{mypos:circle}{mypos:circleradius=.5cm,mypos:circlecolor=green} \stoppositionoverlay % These two lines can be removed without consequences \startuniqueMPgraphic{first demo} \stopuniqueMPgraphic \startMPpositiongraphic{mypos:circle} % absolute coordinates relative to paper by default? numeric x, y, w, h, d, radius; x = \MPx{\MPvar{self}}; y = \MPy{\MPvar{self}}; w = \MPw{\MPvar{self}}; radius = \MPvar{mypos:circleradius}; color c; c = \MPvar{mypos:circlecolor}; path p ; p = (x+w/2+radius,y)..(x+w/2,y+radius)..(x+w/2-radius,y) ..(x+w/2,y-radius)..cycle; drawarrow p withpen pencircle scaled 2pt withcolor c; \stopMPpositiongraphic \framed [ background=my first overlay,my fourth overlay,align=middle,width=7cm] { have attached it: \hpos{three}{{\em here}}, the} \stoptext %%%%%%%%%%%%%%% Regards, Chris
On 1/19/2014 8:00 AM, Elspeth McGullicuddy wrote:
\setupbackgrounds[paper][background={ my first overlay, %% Doesn't work anymore if I comment this line. my fourth overlay}]
so that is effectively background={ my first overlay, my fourth overlay} spaces after , are gobbled so if you want to comment things like that do this \setupbackgrounds[paper][background={% my first overlay,% my fourth overlay% }] now you can comment one of both lines ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On 1/19/2014 8:00 AM, Elspeth McGullicuddy wrote:
\framed [ background=my first overlay,my fourth overlay,align=middle,width=7cm] { have attached it: \hpos{three}{{\em here}}, the}
here background=my first overlay and my fourth overlay a key without value so: be careful with spaces and commas ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
Hi Hans,
The tip you gave me (wandering spaces), worked for the previous
example, the one where the overlay was attached to the background of
the "paper".
For the other example, where the overlay is attached to the background
of a "\framed", I haven't been able to make it work. The extra spaces
there, were in fact added "during the mail process" but weren't in my
file.
I put the file that doesn't work in "attached files", so there are no
risk it collects extra spaces.
There is probably an obvious and silly mistake but I can't find it:
for me it's quite similar to the examples in metafun-p.pdf, p. 127:
"\framed[background=demo circle]{This text is overlayed.}", but mine
refuses to work.
Chris
On Mon, Jan 20, 2014 at 6:57 PM, Hans Hagen
On 1/19/2014 8:00 AM, Elspeth McGullicuddy wrote:
\framed [ background=my first overlay,my fourth
The line break here wasn't in my file.
overlay,align=middle,width=7cm] { have attached it: \hpos{three}{{\em here}}, the}
here
background=my first overlay
and
my fourth overlay
a key without value
so: be careful with spaces and commas
----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl ----------------------------------------------------------------- ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!
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On 1/24/2014 12:52 AM, Elspeth McGullicuddy wrote:
Hi Hans,
The tip you gave me (wandering spaces), worked for the previous example, the one where the overlay was attached to the background of the "paper". For the other example, where the overlay is attached to the background of a "\framed", I haven't been able to make it work. The extra spaces there, were in fact added "during the mail process" but weren't in my file.
I put the file that doesn't work in "attached files", so there are no risk it collects extra spaces. There is probably an obvious and silly mistake but I can't find it: for me it's quite similar to the examples in metafun-p.pdf, p. 127: "\framed[background=demo circle]{This text is overlayed.}", but mine refuses to work.
you need to anchor the graphic: \starttext \defineoverlay[my fourth overlay][\positionoverlay{my backgraphics}] \startpositionoverlay{my backgraphics} \setMPpositiongraphic{three}{mypos:circle}{mypos:circleradius=1cm,mypos:circlecolor=red} \setMPpositiongraphic{three}{mypos:circle}{mypos:circleradius=.5cm,mypos:circlecolor=green} \stoppositionoverlay \startMPinclusions if unknown context_apos : input mp-apos.mpiv ; fi ; if unknown context_abck : input mp-abck.mpiv ; fi ; \stopMPinclusions \startMPpositiongraphic{mypos:circle} numeric x, y, w, h, d, radius; color c; path p ; x = \MPx{\MPvar{self}}; y = \MPy{\MPvar{self}}; w = \MPw{\MPvar{self}}; radius = \MPvar{mypos:circleradius}; c = \MPvar{mypos:circlecolor}; p = (x+w/2+radius,y)..(x+w/2,y+radius)..(x+w/2-radius,y) ..(x+w/2,y-radius)..cycle; drawarrow p withpen pencircle scaled 2pt withcolor c; anchor_box(\MPanchor{\MPvar{self}}) ; \stopMPpositiongraphic \framed [background=my fourth overlay,align=middle,width=7cm] {have attached it: \hpos{three}{{\em here}}, the} \stoptext ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On Mon, Jan 27, 2014 at 1:34 PM, Hans Hagen
you need to anchor the graphic:
anchor_box(\MPanchor{\MPvar{self}}) ;
Thanks a lot, it works now. I wouldn't have guessed: I learnt a lot with that. Chris
participants (2)
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Elspeth McGullicuddy -
Hans Hagen