I really would like to see it on the Peak speedwell model and now realise we tried it on the Agua model but decided against it due to deadlines. We set a deadline for this one, but including the coordinates are a must!
grid bottom
grid-coords border
grid-size 250 250 250 m
cs OSGB:SK
grid-origin 14865.01 82575.16 193.75 m
I also tried implementing the full grid, in the hope that this would help, but also didn't.
layout custom_grid
##change default cross hair grid to grid
code metapost
def s_hgrid (expr xpos, ypos, xsize, ysize) =
pickup PenD;
if ( xpos >= -xsize ) and ( ypos >= -ysize ):
draw ( -xsize/2, 0) -- ( xsize/2, 0);
draw ( 0, -ysize/2) -- ( 0, ysize/2);
fi
enddef;
endcode
endlayout
Alastair Gott.