bug in chart module

bug in chart module

[Hans Hagen]

Hi,

for chart users: i found a bug in mp-chrt.mp (must be a quite old one):

     for i=1 upto max_x :
       for j=1 upto max_y :                % was bug: xfrom,yto
         if not ( ( (i,j)=(xfrom,yfrom) ) or ( (i,j)=(xto,yto) ) ) :

it results in the wrong conclusion about lines crossing shapes, so if you 
encounter that situation, patch and regenerate metafun

Hans
-------------------------------------------------------------------------
                                   Hans Hagen | PRAGMA ADE | pragma@wxs.nl
                       Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
  tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
-------------------------------------------------------------------------
                        information: http://www.pragma-ade.com/roadmap.pdf
                     documentation: http://www.pragma-ade.com/showcase.pdf
-------------------------------------------------------------------------

Re: bug in chart module

[Willi Egger]

Hi Hans,

Am I missing something? I can't find the mentioned file!

Gruss Willi


----- Original Message -----
From: "Hans Hagen" <pragma@wxs.nl>
To: <ntg-context@ntg.nl>
Sent: Sunday, October 27, 2002 11:04 PM
Subject: [NTG-context] bug in chart module


> Hi,
>
> for chart users: i found a bug in mp-chrt.mp (must be a quite old one):
>
>      for i=1 upto max_x :
>        for j=1 upto max_y :                % was bug: xfrom,yto
>          if not ( ( (i,j)=(xfrom,yfrom) ) or ( (i,j)=(xto,yto) ) ) :
>
> it results in the wrong conclusion about lines crossing shapes, so if you
> encounter that situation, patch and regenerate metafun
>
> Hans
> -------------------------------------------------------------------------
>                                    Hans Hagen | PRAGMA ADE | pragma@wxs.nl
>                        Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>   tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
> -------------------------------------------------------------------------
>                         information: http://www.pragma-ade.com/roadmap.pdf
>                      documentation: http://www.pragma-ade.com/showcase.pdf
> -------------------------------------------------------------------------
>
> _______________________________________________
> ntg-context mailing list
> ntg-context@ref.ntg.nl
> http://ref.ntg.nl/mailman/listinfo/ntg-context
>
>

Re: bug in chart module

[Willi Egger]

Hi Hans

sorry for bothering you with the filename. Found out it is mp-char.mp

Willi

----- Original Message -----
From: "Hans Hagen" <pragma@wxs.nl>
To: <ntg-context@ntg.nl>
Sent: Sunday, October 27, 2002 11:04 PM
Subject: [NTG-context] bug in chart module


> Hi,
>
> for chart users: i found a bug in mp-chrt.mp (must be a quite old one):
>
>      for i=1 upto max_x :
>        for j=1 upto max_y :                % was bug: xfrom,yto
>          if not ( ( (i,j)=(xfrom,yfrom) ) or ( (i,j)=(xto,yto) ) ) :
>
> it results in the wrong conclusion about lines crossing shapes, so if you
> encounter that situation, patch and regenerate metafun
>
> Hans
> -------------------------------------------------------------------------
>                                    Hans Hagen | PRAGMA ADE | pragma@wxs.nl
>                        Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>   tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
> -------------------------------------------------------------------------
>                         information: http://www.pragma-ade.com/roadmap.pdf
>                      documentation: http://www.pragma-ade.com/showcase.pdf
> -------------------------------------------------------------------------
>
> _______________________________________________
> ntg-context mailing list
> ntg-context@ref.ntg.nl
> http://ref.ntg.nl/mailman/listinfo/ntg-context
>
>