All, I'd like to do something like this: create_axes(xmin,xmax,ymin,ymax,ux,uy)(x); Where x will be a label for my x-axis. But once in a while it might be t or u or some other thing such as "Days." I want to use it like this: beginfig(0); %initialize window parameters numeric xmin, xmax, xscl, ymin, ymax, yscl; xmin:=-5; xmax:=5; xscl:=1; ymin:=-5; ymax:=5; yscl:=1; %initialize scale numeric ux, uy; (xmax-xmin)*ux=4in; (ymax-ymin)*uy=3in; %create-axes function vardef create_axes(expr xxmin, xxmax, yymin, yymax, uux, uuy)(text xlbl)= drawdblarrow (1.05*xxmin*uux,0)--(1.05*xxmax*uux,0); label.rt(btex $xlbl$, (1.05*xxmax*uux,0)); drawdblarrow (0,1.05*yymin*uuy)--(0,1.05*yymax*uuy); enddef; create_axes(xmin,xmax,ymin,ymax,ux,uy)(x); endfig; end. Two questions: 1. How can I do this in plain metapost? 2. What would be the "Context Way?"
David Arnold wrote:
1. How can I do this in plain metapost?
2. What would be the "Context Way?"
btex ... etex is parsed as-is and therefore cannot be uses this is what the macro textext("...") is for, it writes the (expanded) string to a file and then applies tex to it between runs Hans
Hans, I've tried various things without much success. I cannot seem to access the contents of xlbl below. Is this approach ever going to work? Note: I am trying to pass the string "x" to the parameter xlbl. %output=pdf \setupcolors[state=start] \definecolor[gridlines][s=0.7] \startMPinclusions color gridlines; gridlines:=\MPcolor{gridlines}; vardef create_grid(expr xxmin,xxmax,xxscl,yymin,yymax,yyscl,uux,uuy)= for k=xxmin step xxscl until xxmax: draw (xmin*uux,k*uuy)--(xmax*uux,k*uuy) withcolor \MPcolor {gridlines}; draw (k*uux,ymin*uuy)--(k*uux,ymax*uuy) withcolor \MPcolor {gridlines}; endfor; enddef; vardef create_axes (expr xxmin,xxmax,yymin,yymax,uux,uuy) (text xlbl) = drawdblarrow (1.05*xxmin*uux,0)--(1.05*xxmax*uux,0); draw textext.origin(\MPstring{xlbl}); drawdblarrow (0,1.05*yymin*uuy)--(0,1.05*yymax*uuy); enddef; \stopMPinclusions \starttext \startMPpage %initialize window parameters numeric xmin, xmax, xscl, ymin, ymax, yscl; xmin:=-5; xmax:=5; xscl:=1; ymin:=-5; ymax:=5; yscl:=1; %initialize scale numeric ux, uy; (xmax-xmin)*ux=4in; (ymax-ymin)*uy=3in; %create the grid create_grid(xmin,xmax,xscl,ymin,ymax,yscl,ux,uy); %create the axes create_axes(xmin,xmax,ymin,ymax,ux,uy)(x); \stopMPpage \stoptext %%% Local Variables: %%% mode: conTeXt-en %%% End:
Hi David, Put the "x" into a variable: \setMPtext{1}{x} you can define the \stetMPtext within the \starttext \stoptext or outside Call create_axes(xmin,xmax,ymin,ymax,ux,uy)(\MPbetex{1}); Willi David Arnold wrote:
Hans,
I've tried various things without much success. I cannot seem to access the contents of xlbl below.
Is this approach ever going to work?
Note: I am trying to pass the string "x" to the parameter xlbl.
%output=pdf
\setupcolors[state=start]
\definecolor[gridlines][s=0.7]
\startMPinclusions
color gridlines; gridlines:=\MPcolor{gridlines};
vardef create_grid(expr xxmin,xxmax,xxscl,yymin,yymax,yyscl,uux,uuy)= for k=xxmin step xxscl until xxmax: draw (xmin*uux,k*uuy)--(xmax*uux,k*uuy) withcolor \MPcolor {gridlines}; draw (k*uux,ymin*uuy)--(k*uux,ymax*uuy) withcolor \MPcolor {gridlines}; endfor; enddef;
vardef create_axes (expr xxmin,xxmax,yymin,yymax,uux,uuy) (text xlbl) = drawdblarrow (1.05*xxmin*uux,0)--(1.05*xxmax*uux,0); draw textext.origin(\MPstring{xlbl}); drawdblarrow (0,1.05*yymin*uuy)--(0,1.05*yymax*uuy); enddef;
\stopMPinclusions
\starttext
\startMPpage
%initialize window parameters numeric xmin, xmax, xscl, ymin, ymax, yscl; xmin:=-5; xmax:=5; xscl:=1; ymin:=-5; ymax:=5; yscl:=1;
%initialize scale numeric ux, uy; (xmax-xmin)*ux=4in; (ymax-ymin)*uy=3in;
%create the grid create_grid(xmin,xmax,xscl,ymin,ymax,yscl,ux,uy);
%create the axes create_axes(xmin,xmax,ymin,ymax,ux,uy)(x);
\stopMPpage
\stoptext
%%% Local Variables: %%% mode: conTeXt-en %%% End: _______________________________________________ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Willi et al, No luck. I can't get any text to show up. I've spent about three days on this, reading, etc., and I'm no closer than I was three days ago. %output=pdf \setupcolors[state=start] \definecolor[gridlines][s=0.7] \startMPinclusions color gridlines; gridlines:=\MPcolor{gridlines}; vardef create_grid(expr xxmin,xxmax,xxscl,yymin,yymax,yyscl,uux,uuy)= for k=xxmin step xxscl until xxmax: draw (xmin*uux,k*uuy)--(xmax*uux,k*uuy) withcolor \MPcolor {gridlines}; draw (k*uux,ymin*uuy)--(k*uux,ymax*uuy) withcolor \MPcolor {gridlines}; endfor; enddef; vardef create_axes (expr xxmin,xxmax,yymin,yymax,uux,uuy) (text xlbl) = drawdblarrow (1.05*xxmin*uux,0)--(1.05*xxmax*uux,0); draw textext.origin(\MPbetex{xlbl}); drawdblarrow (0,1.05*yymin*uuy)--(0,1.05*yymax*uuy); enddef; \stopMPinclusions \starttext \startMPpage %initialize window parameters numeric xmin, xmax, xscl, ymin, ymax, yscl; xmin:=-5; xmax:=5; xscl:=1; ymin:=-5; ymax:=5; yscl:=1; %initialize scale numeric ux, uy; (xmax-xmin)*ux=4in; (ymax-ymin)*uy=3in; %create the grid create_grid(xmin,xmax,xscl,ymin,ymax,yscl,ux,uy); %create the axes \setMPtext{1}{x}; create_axes(xmin,xmax,ymin,ymax,ux,uy)(\MPbetex{1}); \stopMPpage \stoptext %%% Local Variables: %%% mode: conTeXt-en %%% End:
David Arnold wrote:
Hans,
I've tried various things without much success. I cannot seem to access the contents of xlbl below.
Is this approach ever going to work?
I can make your example work by passing the argument as a true metapost string: * remove the \MPstring command: draw textext.origin(xlbl); * create_axes(xmin,xmax,ymin,ymax,ux,uy)("x"); But it is out of sync: you always have to call texexec twice whenever you make changes. Cheers, Taco
OK. But I need it set as btex $x$ etex at the right end of the horizontal axis. On Dec 27, 2005, at 12:09 AM, Taco Hoekwater wrote:
David Arnold wrote:
Hans, I've tried various things without much success. I cannot seem to access the contents of xlbl below. Is this approach ever going to work?
I can make your example work by passing the argument as a true metapost string:
* remove the \MPstring command: draw textext.origin(xlbl); * create_axes(xmin,xmax,ymin,ymax,ux,uy)("x");
But it is out of sync: you always have to call texexec twice whenever you make changes.
Cheers, Taco _______________________________________________ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
participants (4)
-
David Arnold -
Hans Hagen -
Taco Hoekwater -
Willi Egger