Dear Terry and All,
on 2002/03/19 05.09, Terry Simpson at [EMAIL PROTECTED] wrote:
>> This thought from my 'Rules of Thumb' might be useful.
>>
>> Reading: Reading is easy for most people if the letters are 5
>> millimetres
>> high at a distance of 500 millimetres; from this we get a ratio of
> 1:100,
>> and this will work on any scale. If you are planning a billboard 40 m
> from
>> a
>> country road then the letters should be 400 millimetres high (40 m ÷
> 100 =
>> 40 000 mm ÷ 100 = 400 mm). Similarly, if you are designing a
> conference
>> poster to be read from 2 m the letters should be a minimum of 20
>> millimetres
>> high (2 000 mm ÷ 100 = 20 mm).
>
>
> Is 'Rules of thumb' an available document?
>
> It appears to be about double the minimum angle that I quoted. Plugging
> that back into the LCD calculation would increase character size from
> 3.81 mm to 6.6 mm.
>
> However, I appreciate that 'rules of thumb' are very crude and
> professionals have the option to make more complicated calculations.
>
> --
> Terry Simpson
No Terry. I have not published any document called 'Rules of Thumb'. My
Rules of Thumb are simply a collection that I have made with help, and
constructive criticism, from readers of the USMA and UKMA lists.
It's interesting that your 'minimum angle' appears to be roughly half of my
'easily readable' method. This may simply be due to our differing goals; you
are trying to fit in as much stuff as you can in a limited space with
readability as a secondary goal. I am aiming for ease of reading as my
primary goal with economy of materials as a secondary aim.
Cheers,
Pat Naughtin
CAMS - Certified Advanced Metrication Specialist
- United States Metric Association
ASM - Accredited Speaking Member
- National Speakers Association of Australia
Member, International Federation for Professional Speakers
--
