[GRASS-user] Re: Thematic Vector Problem 6.2RC2

[Moritz Lennert]

> Date: Mon, 23 Oct 2006 11:47:34 +0100
> From: Alex Bond <AlexBond at quintessa.org>
> Subject: [GRASS-user] Thematic Vector Problem 6.2RC2
> To: grassuser at grass.itc.it
> Message-ID: <453C9DC6.9060009 at quintessa.org>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi,
>
> I'm having problems with using thematic maps in Grass 6.2RC2.  If I try
> to display *any* vector thematically (including the spearfish dataset),
> then I get the following error:
>
> can't read "lineht": no such variable
> can't read "lineht": no such variable
>      while executing
> "expr {$lineht * 2}"
>      (procedure "GmThematic::tleg_item" line 19)
>      invoked from within
> "GmThematic::tleg_item $mon $id"
>      (procedure "GmThematic::display" line 73)
>      invoked from within
> "GmThematic::display $node $mod"
>      ("thematic" arm line 2)
>      invoked from within
> "switch $type {
>          group {
>              GmGroup::display $node $mod
> 		}
> 		raster {
> 			GmRaster::display $node $mod
> 		}
> 		labels {
> 			GmLabels::disp..."
>      (procedure "GmTree::display_node" line 7)
>      invoked from within
> "GmTree::display_node $n $mod"
>      (procedure "GmGroup::display" line 22)
>      invoked from within
> "GmGroup::display "root" $mod"
>      (procedure "MapCanvas::runprograms" line 63)
>      invoked from within
> "MapCanvas::runprograms $mon [expr {$mymodified != 0}]"
>      (procedure "MapCanvas::drawmap" line 38)
>      invoked from within
> "MapCanvas::drawmap $mon"
>      (procedure "MapCanvas::display_server" line 9)
>      invoked from within
> "MapCanvas::display_server"
>      ("after" script)
>
> Anybody got any ideas or workarounds?  I think this may have already
> been posted under grass 6.3 development - apologies if this is a
> mis-posting, but I could really use a quick fix!
>

This is fixed in RC3 which was just released, but if you need to do it
locally, the fix is in grass/etc/gm/thematic.tcl:

Index: thematic.tcl
===================================================================
RCS file: /grassrepository/grass6/gui/tcltk/gis.m/thematic.tcl,v
retrieving revision 1.21
retrieving revision 1.22
diff -u -d -r1.21 -r1.22
--- thematic.tcl	21 Oct 2006 12:03:13 -0000	1.21
+++ thematic.tcl	21 Oct 2006 19:28:53 -0000	1.22
@@ -82,9 +82,10 @@
     set opt($count,1,math) 0
     set opt($count,1,psmap) ""
     set opt($count,1,border) 1
-    set opt($count,1,titlefont) introfont
-    set opt($count,1,subtitlefont) bolddefault
-    set opt($count,1,labelfont) default
+    # keep font names here to make sure that all fonts used are in proper
TclTk format
+    set opt($count,1,titlefont) "{times} 14 bold"
+    set opt($count,1,subtitlefont) "{times} 12 bold"
+    set opt($count,1,labelfont) "{times} 12"
     set opt($count,1,tfontcolor) \#000000
     set opt($count,1,lfontcolor) \#000000
     set opt($count,1,mod) 1


Moritz