hello,
i've tested piccolo few weeks ago but the problem was that the zoomed rectangles looked realy bad, because the drawing is not very accurate!!! the next problem was that it was not much faster than my application without doubleBuffering! the at least it is a problem that i must recode a big application which is in development since a year. dont't think that it makes sence to recode half of a application to use a zooming framework that doesn't bring much of more preformance! the next think is export and printing, i implement export for lots of formats(svg, gif, jpg, pdf, ps...). don't no if it works with a zooming farmework! if i had know the problems with zooming, i've started with one of the frameworks from startup, but not yet! hopefully everybody or me finds a solution for this problem! it would be so great if somebody looks at my problem/code and helps me to solve my problem!!!
michael
Emmanuel Pietriga schrieb am 22.07.2004 08:07:
Michael Seele wrote:
hi,
i develop an application which can zoom and displays a few rectangles. now i want to buffer(using double buffering) the rectangles for more speed in my application. the problem is, that the content of the rectangles when they use double buffering looks very decayed! for this reason i wrote a little sample progamm(i attached the sample programm as a zipped eclipse project) which should help me to solve my problem! unfortunately i have found a solution so far! could you help me?! it will be great if you check out my little sample programm and help me in solving my problem!
greetings and sorry for my bad english :-)
-- G & H Softwareentwicklung GmbH Tel.: +49(0)7451/53706-20 Robert-Bosch-Str. 23 Fax: +49(0)7451/53706-90 D-72160 Horb a.N. http://www.guh-software.de
Hello,
Why don't you use an existing zooming framework supporting double-buffering and offering many other features?
The following two have already been mentioned here: http://www.cs.umd.edu/hcil/piccolo/ http://zvtm.sourceforge.net
The second one is licensed under LGPL and can be used in both open source and commercial products (the first one is open source too, but I don't know what license they chose).
Emmanuel
-- Emmanuel Pietriga ([EMAIL PROTECTED]) http://claribole.net
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