Metapost terminal and rotation

[<wa...@ga...>]

Hi,

yet another problem with the metapost term is rotation. I was trying to
produce some rotated labels, and apparently all non 0 angle labels are
treated as vertical, as in very weak terminals, which is a bit of a
shame in metapost. In fact I think it is easier to rotate as needed than
to coerce everything to 0 or 90. This fix works for me:

--- term/metapost.trm	2004-06-06 01:53:12.605250704 +0200
+++ ../gnuplot--mydev/term/metapost.trm	2004-06-06 01:55:09.716447096 +0200
@@ -532,11 +532,11 @@
   GPtext:=GPtext shifted\n\
     if j = 1: (-(ulcorner GPtext + llcorner GPtext)/2)\n\
     elseif j = 2: (-center GPtext)\n\
     else: (-(urcorner GPtext + lrcorner GPtext)/2)\n\
     fi\n\
-    rotated if r > 0: 90 else: 0 fi;\n\
+    rotated r;\n\
   draw GPtext shifted (x,y)\n\
 enddef;\n", gpoutfile);
 }
 
 TERM_PUBLIC void
@@ -756,11 +756,11 @@
 
 TERM_PUBLIC int
 MP_text_angle(int ang)
 {
     /* Metapost code does the conversion */
-    MP_ang = (ang ? 1 : 0);
+    MP_ang = ang; 
     return (TRUE);
 }
 
 TERM_PUBLIC int
 MP_set_font(const char *font)

I am not posting these corrections as proper patches, but just showing
them here, as being new to gnuplot, and even newer to its code, I cannot
be even sure i fall this is sane. In fact the thing above seems so
obvious, that I suspect there must be a reason, why it is not there
already (but it may well be that it is so, because metapost.trm had been
created based on some simpler trm file).

Andrzej