Paper sizes in FPDF

[jodleren]

Hello

I have used FPDF for our documentation, and now they found that we
need bigger sizes - some new drawings are in - I guess - A2. And FPDF
can only handle max A3.

In the file fpdf.php line 119, I have updated this:

//Page format
$this->PageFormats=array(
'a0'=>array(2383.94,3370.39),
'a1'=>array(1683.78,2383.94),
'a2'=>array(1190.55,1683.78),
'a3'=>array(841.89,1190.55),
'a4'=>array(595.28,841.89),
'a5'=>array(420.94,595.28),
'a6'=>array(297.64,420.94),
'a7'=>array(209.76,297.64),
'a8'=>array(147.40,209.76),
'a9'=>array(104.88,147.40),
'a10'=>array(73.30,104.88),
'ledger'=>array(1224,792),
'tabloid'=>array(792,1008)
'letter'=>array(612,792),
'legal'=>array(612,1008)
'junior legal'=>array(576,360));

I want to share this, but also ask- is this right?

Accoding to:
http://en.wikipedia.org/wiki/Paper_size

1) American sizes are easy, the number about should be 72 dpi, so 8
inches = 8 * 72 = 576.
2) new A sizes are odd - they should be twice as big, but e.g the jump
from A2 to A1 increases by 1 mm (420 to twice that = 840 mm, but it is
841 mm?!?!).
Anyway, I calculated them as = size / 25,4 * 72

Any comments anyone?

WBR
Sonnich

[Willem Bogaerts]

> 1) American sizes are easy, the number about should be 72 dpi, so 8
> inches = 8 * 72 = 576.
> 2) new A sizes are odd - they should be twice as big, but e.g the jump
> from A2 to A1 increases by 1 mm (420 to twice that = 840 mm, but it is
> 841 mm?!?!).

In fact, A sizes are easy:
- A0 has an area of exactly 1 square meter.
- The ratio width:height is sqrt(2):1, so if you cut a landscape A(x)
vertically in two, you get an A(x+1) with the same size ratio and half
its area. What you have found are rounding errors.

Best regards,
--
Willem Bogaerts

Application smith
Kratz B.V.
http://www.kratz.nl/