Daniel, Thanks a lot for the information, much appreciated. From what you have said about the seamless table being just a regular .TAB file that serves as an index to a number of individual files, would TAB2TAB not do what I need?
As you can probably tell my MITAB / MapInfo skills are very limited so any information would be great!! Thanks, Paul On Tue, May 17, 2011 at 12:21 PM, Daniel Morissette < [email protected]> wrote: > > > 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 > > >
