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Re: [PATCH] Re: gEDA-dev: libgeda, gschem: New print dialog

Hi,

Tomaz Solc wrote:

<SNIP>
  
If we need a fudge factor  applied to the size of the text, then that
 can be done too.  There is a much better place to do so.  It's in 
the text output routine.  There, a calculation is done to scale the 
internal measure of the text size 'points' to the postscript units. 
This is the logical choice for such a change, it keeps the 
information together in one place. Imagine someone later coming to 
try to figure out why his/her text comes up strange sizes and not 
being able to find where the scaling is occurring...
    

I guess you are right.

Well, currently this works for me and it is quite simple. I don't want
to dive into libgeda printing code and the font size doesn't seem to
bother anyone else, so I'll just forget about the patch.
I don't mind adding this next time I get a chance.  Itsy bitsy fonts bug me too.
  
Note also, that there is the possibility that the text is also output
 as vectors, changing scale there might be a bit more difficult, as 
it uses the primitive line drawing routines to render the text.
    

As far as I see text is not drawn with lines in the postscript file (it
is drawn that way on the screen though)
It can be if you adjust the gschemrc file to include (output-text "vector"), or set the output-vector-threshold to a non-negativce number.  I will dig into this when I try to fix this.

Best regards
Tomaz Solc

- --- nacrt.ps    2006-08-02 15:41:12.000000000 +0200
+++ nacrt-new.ps        2006-08-02 15:42:06.000000000 +0200
@@ -321,11 +321,11 @@
     gsave              % save state for later

     dup /fontsize exch def  % save font size for corrections later
     % do font selection
     /gEDAFont findfont
- -    exch scalefont
+    exch fontcorrectionfactor mul scalefont
     setfont

     % set up coordinates
     translate           % move origin to given point
     rotate             % rotate so that text is drawn
@@ -398,10 +398,11 @@


 %%EndProlog
 %%Page: 1 1
 /gEDAFont ISOLatin1Extended /Helvetica RE
+/fontcorrectionfactor 1.6 def
 2 setlinecap
 0.072000 0.072000 scale
 7441 500 translate 90 rotate
 0.218579 0.218579 scale
 -59470 -37680 translate
Good idea, but, forgitting the def to set up the /fontcorrection variable could lead to disaster.  I know where to fix this in the output routines.  I will work on it, but wait to commit the changes until after the next snapshot, as to do this will introduce more rc keywords, and data structure additions.

Mike
-- 
--------------------------------------------------
                              Mike Jarabek
                                FPGA/ASIC Designer
 http://www.istop.com/~mjarabek
--------------------------------------------------


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