On Jul 3, 2009, at 10:47 PM, Edward Mendelson wrote:

> --- In wordperfectmac@yahoogroups.com, John Kaufmann <kaufmann@...>

> wrote:

>>

>> In a message dated 2009.07.03 17:42 -0500, Edward Mendelson wrote:

>>

>>> --- In wordperfectmac@yahoogroups.com, "iainmeek"

>>> <wordperfectmac@> wrote:

>>

>>>> Does anyone know if it's possible to print out to A1 size from

>>>> Sheepshaver?

>>>>

>>> Are you asking whether you can print an A1-size page from

>>> WordPerfect for the Mac, running under Sheepshaver? If so, the

>>> answer is No...

>>

>> Interesting. If the printing device can handle A1, where is the

>> limitation?

>> WP/Mac (I believe other WP versions have no such limit) or

>> Sheepshaver? -

>> and why?

>

> All versions of WordPerfect (including the current Windows

> versions) have a page size limit of 27.3 inches. As Roy

> Lewis explained in a recent post on a Corel newsgroup

> his words):

>

> "WP has a limit of 27.306in ... AFAICS WP has a limit of

> (2^16)/2-1 (32767). This is the maximum figure that can be

> represented by a signed binary 16-bit integer. (Adding 1

> to this figure, binary 0111_1111_1111_1111, makes it a

> negative value: 1000_0000_0000_0000 - the leading 1 is

> a 'sign bit'.) Using WP Units, 1200 to the inch, this

> equates to 27.306in."

>

> Of course, it could be worse. Microsoft Word has a page

> size limit of 22 inches.

Actually, Mac WP uses the Quickdraw coordinate system (72 dpi), not

the WP Windows system (1200 dpi). It is therefore, theoretically,

possible to print to a paper nearly 38 feet across (32767 / 72 = 455

inches or 37' 11"). The only limitation should be your printer and

it's driver.

The Mac WP file format indicates that most coordinates are

represented by a signed 32 bit fixed point number, which is accurate

to four decimal places (±32767.0000 72nds of an inch).

Just for interests sake; Word uses the TWIPS (twentieths of a point,

or 1440 / inch) system, which is why it is limited to 22 inches

(32767 / 1440 = 22.75).