kicad-developers team mailing list archive

[Manveru <manveru@...>]

2009/1/23 Vesa Solonen <vsolonen@...>:
> Thank you for your through explanation of KiCad history. It was really
> interesting.
>
> On Fri, 23 Jan 2009, jean-pierre.charras@... wrote:
>
>> I did not say: do not use wxDC capabilities,
>> but i believe the clipping at kicad level remains useful, and perhaps
>> (Alas!) mandatory for some graphic shapes.(to be tested for arcs ...)
>
> Couldn't these overflow problems be easily gone by using wxCG for
> graphics. Double precision float coordinates won't owerflow in the near
> future.

My two cents: Floating point numbers are things requiring much careful
in engineering use. Fixed point calculations (integers) allows control
of precision quite simple. With floating point the precision depends
on value of the variable. So you have be very careful with order of
operation and so on. I mention it to remind this problem as it should
be discussed, too.

-- 
Manveru
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