[l2h] Some bitmapped images produced by latex2html contain solid edge at the bottom of the image

[Nasser M. Abbasi]

FYI;

I found that the following setting ELIMINATED all the cropping bars from the 
math bitmapped images produced

$MATH_SCALE_FACTOR = 1.8;
$DISP_SCALE_FACTOR = 1.0;

In general, the higher $MATH_SCALE_FACTOR , the less the number of these 
bars. at 1.8, I do not see any. Please see this output I generated using the 
above settings

http://12000.org/my_courses/FULLERTON_COURSES/spring_2009/MAE_511_advanced_vibration/project/control_inverted_pendulum/index.htm

and click on the link that says HTML generated by latex2html. You see there 
are no more bars !

May be the above will give some l2h expert a hint where the problem could 
be?

thanks,
--Nasser
----- Original Message ----- 
From: "Nasser M. Abbasi" <nma at 12000.org>
To: <latex2html at tug.org>
Sent: Thursday, November 12, 2009 7:44 PM
Subject: Re: [l2h] Some bitmapped images produced by latex2html contain 
solid edge at the bottom of the image


>>>
>>> I think your problem is similar to:
>>>
>>> [l2h] cropping bars --- problem persists :(
>>> http://tug.org/mailman/htdig/latex2html/2003-February/002205.html
>>>
>
> I have find an interesting observation which can give clue to some l2h 
> expert where the problem is.
>
> The number of those bars at the edge of bitmapped images is strongly 
> correlated to the setting of the following 2 paramters on the l2hconf file
>
> $MATH_SCALE_FACTOR = 1.6;
> $DISP_SCALE_FACTOR = 1.2;
>
> In particular, by fixing $MATH_SCALE_FACTOR = 1.6,  and changing the 
> $DISP_SCALE_FACTOR, I get different number of edge bar show up in the html 
> I am working on as following (everything else is constant)
>
> $DISP_SCALE_FACTOR=1.2,  number of bars =5
> $DISP_SCALE_FACTOR=1.3,  number of bars =13
> $DISP_SCALE_FACTOR=1.1,  number of bars =64
>
> I also get different number of bars show up when I change 
> MATH_SCALE_FACTOR from 1.6 to say 1.5
>
> The least amount of bars I have found so far (but I did not try much more, 
> getting tired of this) is
>
> $MATH_SCALE_FACTOR = 1.6;
> $DISP_SCALE_FACTOR = 1.2;
>
> So, hopefully this gives someone clue to where the problem is. It is 
> clearly in the image conversion/generation process.
>
> And btw, where the bars show up, is random. i.e. when 
> $DISP_SCALE_FACTOR=1.2 those 5 bars that showed up in that case, not all 
> of them show up again when $DISP_SCALE_FACTOR=1.3.
>
> Thank you,
> --Nasser
>