On Dec 22, 2007 7:59 PM, Xavier Pennec <Xavier.Pennec@sophia.inria.fr> wrote:
As I want to be able not to display the section lines AND the their numbers when I inlcude that survey into the larger map, I thought that adding a user attribute to the section line would be the right way.
Thus, I used a user attribute called label in my th2 file: line section -reverse on -direction both -attr label "one" 312.0 327.0 334.09 327.0 396.0 327.0 425.0 327.0 endline
and I redefined the section line metapost command into in my layout: The file NaduelRD5_plan.pdf is an example on what it gives. With that solution, I have two problems: - the first one is that is I change -attr label "one" with -attr label "1" then metapost crashes because ATTR_label is intrepreted in that case as a known numeric and not as a string.
Yes, that is intended behaviour. You sometimes need to evaluate numerical attibutes. Try the following: if known ATTR_label: old_lo := labeloffset; labeloffset := 2 mm; push_label_fill_color(0.7,0.7,0.7); p_label.bot(if numeric ATTR_label: decimal ATTR_label else: ATTR_label fi, (point pnt of Q), angle(thdir(Q,pnt)), 8); labeloffset := old_lo; pop_label_fill_color; fi; The conversion of numeric to string argument is "decimal ATTR_label" The example also shows how to change alignment, offset and rotation of the label. Unfortunately the rotation (currently) does not work for circled labels (type 5 in your example) so i used type 8 for a label with coloured background. Martin