MapInfo doesn't support 16-colour RLE (run-length encoded) bitmaps (BMP). 256-colour RLE bitmaps work fine. I've got approx. 1-million map tiles that are in this format - that's gonna take a whole lotta processing ;)
-----Original Message----- From: Uffe Kousgaard [mailto:[EMAIL PROTECTED] Sent: 01 September 2005 18:33 To: Mapinfo-L Subject: Re: MI-L save window & print resolution MapInfo 8.0 supports both GIF and TIFF-CMYK as output formats. I'm not sure how to achieve EPS, but perhaps some of the PDF printer drivers can. Regards Uffe ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: "Mapinfo-L" <[email protected]> Sent: Thursday, September 01, 2005 6:40 PM Subject: MI-L Réf. : Re: MI-L Réf. : MI-L save window & print resolution Thanks for putting things more clearly than I did.. BTW, GIF isn't always lossless. It can do nasty things to your colors if you chose a low number of colors (less than there are in your maps). But it compress very well if you have few colors. Sometimes I export large Tiffs and convert them to GIF in Photoshop. Anyway, you can't export directly from MIP, as was requested by the person who asked the question. Also to be more precise : png or tif is the way to go if you have to stay in raster mode. But if you have much details and fine lines in your maps, the vector format is always much better. It's really a pitty that MapInfo doesn't allow exportation in eps mode.. I wonder why it is so ? because MIP don't want to be a fee to Adobe, or whoever invented that postscript format ? or may be it is because that would imply the translation from rgb values in cmyk values and the implementation of a lot of new code ? who knows.. any way, it's a pain to be left with only the wmf format, because in the press world they don't like window things.. MIP should also implement CMYK palettes. With RGB printing to real world press print is a nightmare. Christiane Roh "Uffe Kousgaard" <[EMAIL PROTECTED]> 01.09.2005 18:20 Pour : "Mapinfo-L" <[email protected]> Objet : Re: MI-L Réf. : MI-L save window & print resolution Hi Christiane, Please let me add a few comments on your raster formats. There are 3 kinds of bitmap formats: Uncompressed: TIF, BMP, PSD Compressed, loss-less: PNG, TIF, GIF Compressed, with loss: JPG Main comment is PNG is not a compromise between size and quality, since quality is as good as in the uncompressed formats. Secondly: TIF exists both in compressed and uncompressed versions (both loss-less). That is called "TIFF LZW" in MapInfo. But I agree, when you say PNG is the way to go :-) Regards Uffe ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[email protected]> Sent: Thursday, September 01, 2005 5:29 PM Subject: MI-L Réf. : MI-L save window & print resolution Hi, I encountered the same kind of problems one year ago while we prepared our atlas for print. When you chose to export your windows, there are several types of format which you can chose. a) Raster format export your maps as if they were photographs. That could create huge files depending on your resolution and map dimension. Nowaday printers takes up to 1200dpi if they are good printers. But 600 dpi shold be good enough.. With raster format, things could go wrong in different ways; one important thing lies with PageMaker too : are you sure that you have chosen the right options in dealing with the picture ? Sometimes it can compress pictures which isn't a good idea. There are two kinds of raster formats : the uncompressed ones : *.tif, *.bmp, *.psd; the first is the most frequently used; the second is a Microsoft format and the last is a Photoshop format. Of the three, the tif format is probably the most frequently used. Among the compressed files format, you have the *.jpg and the *.png. The frequently encountered jpg format, is a compressed format which creates bad artifacts with limits and could blurr your maps; it's made for photographic images, not for charts or maps which should keep clean borders. The *png format is also compressed but of better quality. It's the way to go if you want a good compromise between size and quality. If space isn't a criteria, then the Tif format is better. As far as compressed format goes, it would be better to have *.Gif format rather than *.jpg. The former is able to keep clean borders, while the other isn't. --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 17717 ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 17723
