Re: Pagination experiences
on 9/21/00 6:26 PM, Kevin Miller at [EMAIL PROTECTED] wrote: ...By slow I mean more than a second on a fast computer. That sounds quite fast: how fast do you need it to be? Actually, now that you mention it, it is. :-) MetaCard is amazing. But still, one second on a fast machine could be as much as ten or fifteen seconds on a slow machine that I would still want to support. and on 9/21/00 6:35 PM, Scott Raney at [EMAIL PROTECTED] wrote: Just one: Use the pageHeights property of the field, which does all of this work automatically for you ;-) You know, nobody likes a wiseguy, Scott :-) After considering the issue for a moment, I think the pageHeights property _may_ do the trick, but I'll still have to do a little work (this assumes constant line heights, which is safe for my application): 1. Put the text from the start to the text that must be included into the field. 2. Get the page heights. 3. Add up all but the last. 4. Count the pageHeights to see what page I'm on. 5. Figure out the chunk description for the beginning of the last page. 6. Add text, and figure out how much will fit on the last page. 7. Place that text in the field, and put in the page number from step 4. By the way, the pageHeights doesn't support widow and orphan control, does it? I'll have to adjust to that. gc Archives: http://www.mail-archive.com/metacard%40lists.best.com/ Info: http://www.xworlds.com/metacard/mailinglist.htm Please send bug reports to [EMAIL PROTECTED], not this list.
Re: Pagination experiences
Geoff, I have been working on making a both creator and reader 'ebooks', so a I have needed paginating a 'book' from a text file. The best solution I have found is to use the pageheights property, as Scott suggests in other response, because it makes the work very well without effort, but it is not so fast as you want. Finding a particular chunk may be done with a simple 'find' command --very fast in 100 pages or bigger books. Or you have to 'index' the text to know in which pages a particular word appears, but this a process that takes more time to build the index. Regards, Jose Luis - José L. RodrÃguez Illera Universitat de Barcelona Passeig Vall d'Hebron, 171 08035 Barcelona --E From: "Geoff Canyon" [EMAIL PROTECTED] Subject: Pagination experiences Date: Thu, 21 Sep 2000 17:51:35 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit In-Reply-To: [EMAIL PROTECTED] I'm wondering if anyone here has experience writing pagination routines in MetaCard. I'm considering writing a routine that would take a 50-100k block of text, a font, a font size, a field size, and figure out where the page breaks should occur from beginning to end. The actual goal is to be able to go to an arbitrary chunk of the text, and know what page number to put under it. My first instinct is to use the height of the field and the formattedHeight function on chunks of text, finding page-sized chunks and counting them until I get to the chunk I want to display. but this is fairly slow across perhaps hundreds of pages. By slow I mean more than a second on a fast computer. But my second instinct is to figure out how many lines will fit onto one page, figure out how tall those lines are individually, and then just search for the largest n such that n*(the number of lines that will fit on a page) is still less than the chunk I want to display, and then use n+1 for a page number. I'm sure that's not clear, but if someone's done it, I'm betting it will be clear to them. This might be much faster, but will it work? Thanks to anyone who has a suggestion, Geoff Archives: http://www.mail-archive.com/metacard%40lists.best.com/ Info: http://www.xworlds.com/metacard/mailinglist.htm Please send bug reports to [EMAIL PROTECTED], not this list.
Pagination experiences
I'm wondering if anyone here has experience writing pagination routines in MetaCard. I'm considering writing a routine that would take a 50-100k block of text, a font, a font size, a field size, and figure out where the page breaks should occur from beginning to end. The actual goal is to be able to go to an arbitrary chunk of the text, and know what page number to put under it. My first instinct is to use the height of the field and the formattedHeight function on chunks of text, finding page-sized chunks and counting them until I get to the chunk I want to display. but this is fairly slow across perhaps hundreds of pages. By slow I mean more than a second on a fast computer. But my second instinct is to figure out how many lines will fit onto one page, figure out how tall those lines are individually, and then just search for the largest n such that n*(the number of lines that will fit on a page) is still less than the chunk I want to display, and then use n+1 for a page number. I'm sure that's not clear, but if someone's done it, I'm betting it will be clear to them. This might be much faster, but will it work? Thanks to anyone who has a suggestion, Geoff Archives: http://www.mail-archive.com/metacard%40lists.best.com/ Info: http://www.xworlds.com/metacard/mailinglist.htm Please send bug reports to [EMAIL PROTECTED], not this list.
