Marcel Hendrix wrote:
> Elizabeth D Rather <erather@[EMAIL PROTECTED]
> writes Re: A Brief Look at
History
> [..]
>> The thought model is moving a light beam on the screen. It could be
>> off, in which case it makes no mark, or on, in which case a line is
>> drawn. Assume two words, ON and OFF, that control the beam. The beam
>> stays in whatever state it's set. 0, 0 is the upper left corner of the
> ^^^^
>> screen.
>
> Upper left corner is a bad idea. The lower left corner fits much better
> with common use in programs and with developing graphics output. If
you're
> planning to plot on a lineprinter, there might be some merit in the
upper
> left corner :-)
Yeah, it really depends on the device. A screen conventionally has 0,0
in the upper left, many graphics devices do it differently. You should
match the convention of the device you're writing this for.
Cheers,
Elizabeth
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