Re: LIB to Compute GIFs under Win32
- Posted by Michael Sabal <mikes at notations.com> May 25, 2001
- 409 views
You will want to be careful about this kind of program (which I too would = find very useful, as a matter of fact). GIF uses a compression algorithm = that requires payment of a license fee to copy. When you use a purchased = paint program like Paint Shop Pro or Adobe Photoshop, part of the price of = the program is the license fee. When you use a GPL GIF writer, it is more = or less warez. There may be loopholes that allow the free use of the = algorithm, but they must be carefully investigated and documented in your = program & docs. A better idea might be to create virtual images in RAM, = then use one of the programs from the archives to write them out as a JPEG = file for use in your HTML. JPEG compression is free and better at what it = does. Also don't forget that embedding JavaScript in your HTML can make = for some pretty good effects. See http://javascript.internet.com for some = examples. HTH, Mike Sabal >>> r.schr at T-ONLINE.DE 05/25/01 03:17PM >>> Hi Bernie, one example is to display n data points, i.e. (x,y) pairs. Or to display bar graphs. In general: the number of pixel for width and height will be given and then for each pixel a rgb value (for the moment I'm not thinking of animated GIFs). I know, I could try to understand the GIF file format and program then this, but someone might just have done this... .