Re: [ft-devel] regarding freetype 2 cubic curve flattening

[Alexei Podtelezhnikov]

On Mon, Oct 31, 2011 at 3:22 AM, Vivek Rathod <address@hidden> wrote:
> s is calculated as
> "s = FT_ABS( dy * dx1 - dx * dy1 );"   which means s is the perpendicular
> distance of the control point from chord multiplied by L
>

> which means currently  s_limit is being compared with perpendicular distance
> of control point * L .

Correct. s_limit is also multiplied by L on line 1065 in ftgrays.c:

s_limit = L * (TPos)( ONE_PIXEL / 6 );

I do not see a problem here.

> but s_limit is actual distance, so in order to do the correct comparison
> (and to avoid division) don't you think we need to multiply s_limit once
> more by L  ?

This is wrong. Look at the actual code.