Need a small program for Page Order Calculator

[Joseph Michael]

Hi,

I'm using the following web-sites for page order calculation

http://boooks.org/index.php?page=21&lng=1
https://www.gerv.net/software/booklet/  

Can someone help me with a sample java program to achieve via Java ?

Basically i will feed the number of pages in the book, it has to give me the booklet page order.......

Thanks.

[Campbell Ritchie]

Can you work out the algorithm for the order of pages? That is the hard part.

[Knute Snortum]

Do you print on both sides of the paper?

[Joseph Michael]

Option #1 - yes, Both sides of the Paper
Option #2 - No, single side of the Paper

Looking for a standalone swing program UI to accept input in text box and print the values like in the web...

[Paul Clapham]

Joseph Michael wrote:Looking for a standalone swing program UI to accept input in text box and print the values like in the web...

Well, I'm sure you could get somebody to write you a small Swing program to do that. As for the algorithm to order the pages, you can see a JavaScript version in the www.gerv.net version's page source.

[Joseph Michael]

Is it possible for you to explain the javascript??? Is it possible for you to conver the javascript to java with standalone program ?

[Paul Clapham]

If I spent some time going through the JavaScript, I could perhaps explain it. But writing a standalone program to convert the JavaScript to Java -- it would be easier for me to just convert it myself.

[Carey Brown]

Why do you want it "in Java"?

[Joseph Michael]

Yes, Carey Brown...Want to do the exact logic in java...Want to convert it to java and display the values in text box with any Standalone UI - swing

[Campbell Ritchie]

There is bound to be a mathematical theory about paper folding. If you have a 32‑page booklet, that could be one sheet folded 4×4 but some pages will be reversed and some inverted by the folding process. Do some searching for pages and printing and bookbinding.

[Paul Clapham]

Campbell Ritchie wrote:There is bound to be a mathematical theory about paper folding.

Evidently there is, as the web sites referrred to by the OP use that theory. It should not be too hard to reverse-engineer that theory by trying various inputs to either of them and observing the changes in the output.

[Junilu Lacar]

The double-sided printing sequence is just (back--), (front++), (front++), (back--) until back <= front

That is, assuming you have a multiple of 4 pages (and if not, you need to add empty pages to make it so) and page numbers go from 1..N where N is a multiple of 4, the sequence is N, 1, 2, N-1, N-2, 3, 4, N-3, N-4, 5, 6, N-5, N-6, 7, 8, N-7, N-8, 9, 10, ...

For single-sided printing, you just divide the sequence into pairs and use every other pair to print the first side, turn that pile over and use all the other pairs to print the second side.

[Campbell Ritchie]

Paul Clapham wrote:. . . reverse-engineer that theory by trying various inputs . . . the changes in the output.

Or by finding a Victorian printer's manual, which will show diagrams of sheet layouts for different numbers of pages.

[Tim Holloway]

Campbell Ritchie wrote:There is bound to be a mathematical theory about paper folding. If you have a 32‑page booklet, that could be one sheet folded 4×4 but some pages will be reversed and some inverted by the folding process. Do some searching for pages and printing and bookbinding.

I think it comes under Topology. Likely a sub-topic (e. g., folding).

The fun part is that there are several different ways to print and fold a sheet of paper for bookbinding. You can see the popular ones in the dropdown list on the first link. it's actually not just a matter of page order, though, as some of the pages may have to be rendered upside down.