🚀 go-pugleaf

In article <AAS.90Oct15092820@boeygen.nr.no> aas@boeygen.nr.no (Gisle Aas) writes:
>In article <293@heaven.woodside.ca.us> glenn@heaven.woodside.ca.us (Glenn Reid) writes:
>
>>                                               For essentially all Roman
>>  fonts, "stringwidth" returns 0 for the Y component unless your coordinate
>>  system is rotated or something.
>
>Can anybody enlighten me on this subject. Why should stringwidth
>return something else if your coordinate system is rotated or
>something?

Sure, I can enlighten you :-)  I was being brain-dead when I said that,
and I was wrong.  It doesn't matter if the coordinate system is rotated.
You get 0 unless the font itself has a Y component in the width of the
character, which is extremely rare in Roman fonts.

In a weak defense of my earlier posting, and to try to convince you that
I actually do test things before I post them to the net, I had
(approximately) the following dialog with my PostScript interpreter,
but failed to notice the negative exponent on the Y component.  It's
effectively 0, but due to arithmetic error and roundoff, it's not exactly 0:

    heaven> PS
    PostScript(r) Version 1006.24
    PS>60 rotate
    PS>/Helvetica-Bold 120 selectfont
    PS>0 0 moveto (TESTING) stringwidth
    PS>pstack
    6.10352e-05 
    520.08 
    PS>quit
    heaven>

Sorry about the misinformation.

(Glenn) cvn

-- 
 Glenn Reid				RightBrain Software
 glenn@heaven.woodside.ca.us		PostScript/NeXT developers
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