[GRASS-dev] Re: [GRASS GIS] #1441: Hard Copy Map Utility (wxPython wrapper for ps.map) text overlay is broken

[GRASS GIS]

#1441: Hard Copy Map Utility (wxPython wrapper for ps.map) text overlay is broken
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 Reporter:  cmbarton                       |       Owner:  grass-dev@…              
     Type:  defect                         |      Status:  new                      
 Priority:  normal                         |   Milestone:  6.4.2                    
Component:  wxGUI                          |     Version:  svn-trunk                
 Keywords:  hard copy map utility, ps.map  |    Platform:  Unspecified              
      Cpu:  Unspecified                    |  
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Comment(by glynn):

 Replying to [comment:4 cmbarton]:

 > OK. That means we need to use the font names in the manual or find a
 Python command that will reveal the names of any installed PS fonts.

 !PostScript fonts are installed on the printer, not the computer. There is
 no guarantee that it's possible to read information from the printer
 (there might not even /be/ a printer; you might just be generating a
 file).

 > The code that is breaking here is trying to use the PS font name as a
 !TrueType font to estimate the size of the text box for placement in the
 graphical page representation. This won't work.

 The only way to do this is to have AFM/PFM (font metrics) files for the
 fonts in question, and to use the data which they contain. This is made
 more complex by the fact that !PostScript uses kerning by default, so you
 can't just sum the widths of the individual characters.

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Ticket URL: <http://trac.osgeo.org/grass/ticket/1441#comment:10>
GRASS GIS <http://grass.osgeo.org>