On 11-05-17 06:59 AM, pajohib wrote: > I am very new to Mitab and need to know if I can use it to create > Mapinfo seamless layers from a directory of image files and their > associated tab files??? > > I also need to be able to update the seamless layer with new image files > once it has been created... > > Can I use Mitab to do this and if so how....???? >
The current version of the MITAB library only supports seamless layers with TAB files (vector data). It has no support for image files in seamless tables or otherwise. Support for seamless tables in MITAB is also only in read-only mode so it cannot create new seamless tables or update existing ones. However, a seamless table is really just a regular .TAB file that serves as an index to a number of individual files. It contains one record for each image (or tab file) that it refers to, with a geometry corresponding to the bounding box (geographic extent) of the image or tab file, and an attribute with the path of the corresponding file. Finally, the seamless table's .tab header file (a text file) contains a special flag to indicate that it's a seamless table. If you are able to do a bit of coding and analysis of existing files, you could possibly use the C API to create the seamless table yourself based on that information. Perhaps a bit of reading of the mitab_tabseamless.cpp source would help too. Good luck! -- Daniel Morissette http://www.mapgears.com/ Provider of Professional MapServer Support since 2000 ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/mitab/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/mitab/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
