As far as I understood MI export procedure, the actual window contents is "remapped" over a virtual grid covering the extent of the window and defined with the dpi precision you want (there is of course a limitation in want you can do depending on the available memory). The "re-mapping" on that grid is then used for generating a raster (a virtual grid position to a pixel direct conversion) or for extracting WMF coordinates (vector objects defined in the WMF coordinate system).
Changing dpi definition should not in itself affect the size of the resulting WMF file, at least not in the same proportion as for a raster, because it is only the "size" of the same coordinates that will changed (the range of the actual WMF coordinates will increase proportionately to the dpi). I hope I have not make the issue more blurry than it was. Jacques Paris e-mail [EMAIL PROTECTED] MapBasic-MapInfo support http://www.paris-pc-gis.com -----Original Message----- From: Phillips, Frank [mailto:[EMAIL PROTECTED] Sent: 13-Jan-04 09:38 To: 'MapInfo-L' Subject: MI-L Rhetorical Question about DPI on a Vector File If I'm correct, the WMF file format is a vector format, unlike JPG and BMP which are raster formats, and raster formats can take advantage of image resolution (dpi or ppi). When I do a "Save Window As" from a layout, I am offered the chance to input a dpi measure for the WMF file, which strikes me as useless, considering it's a vector format. What's even more strange is that when I wrote out two WMF files from the same layout (one at 240dpi and one at 96dpi), the 240dpi WMF was only 10% bigger in file size than the 96dpi WMF. Anyone care to comment on this? Feel free to tell me if I'm all wet....I don't get my feelings hurt. Frank Phillips Manager of Marketing GIS Vulcan Materials Company (NYSE:VMC) Birmingham, AL, USA --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 9848 --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 9851
