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Posted by Jim Mortoza on July 27, 2006, 12:14 pm
Please log in for more thread options Hi Chris
When you have created a table manually and placed some references into it.
You will need to modify the tab file using notepad and add the following
into it at the end file.
ReadOnly
begin_metadata
"\IsSeamless" = "TRUE"
"\IsReadOnly" = "FALSE"
end_metadata
Kind Regards
Jim
> Thanks for that info Jim. I will give it a try and let you know how I get
> on.
>
> > Hi
> >
> > I have not actually tried this out but if you create a handful of
seamless
> > rasters together and then run the seamless mapbasic program you will
find
> > that one of the options is to turn the seamless table off. Once you have
> > done this you can actually look at the seamless table itself and it will
> > contain a table with 2 columns ( 3 if you count the object) Essentially
> > its
> > created by creating a tile object for each raster ( i.e.. the 4
coordinate
> > pairs inside a tab header) and the name of the table ( with or without
> > path
> > depending on where your rasters are stored) and a description.
> > Using MapBasic you could create a utility to append the names of the
> > rasters
> > into the table and insert the name of the table and description and a
> > rectangle object. In theory this should recreate the seamless table
> > structure into new table and should work.
> > With regards to file handlers under DOS 3.3 ( I am now showing my age)
PCs
> > could open up 255 files and also open up I believe an equivalent number
of
> > buffered files). However the OS itself will take up a good many of these
> > so
> > assume under Windows this is your missing 55. I would imagine however
> > since
> > NT based systems were derived from Unix that this is no longer a
> > restriction. In the old days we only had 20 file handlers !
> > We do write MapBasic utilities for clients and we could write such a
> > routine
> > for you if its imperative you need one and are able to bear the cost of
> > the
> > development time should you need a MapBasic utility developed for you.
As
> > proof of concept you could manually create a test by inputting the
values
> > and creating the objects for 3 or 4 rasters.
> >
> > Kind Regards
> > Jim
> > www.plangis.co.uk
> >
> >
> >
> > ----- Original Message -----
> > Newsgroups: comp.infosystems.gis
> > Sent: Wednesday, July 26, 2006 9:59 AM
> > Subject: Problem creating seamless table MapInfo 8.5
> >
> >
> >> Hello,
> >>
> >> I'm just starting to use use MapInfo and am trying to create a seamless
> >> table. Basically I have all the 10k raster tabs from the OS for the
> >> British Isles and want to create a seamless table of these so I have a
> >> complete map of Britain when required.
> >>
> >> The method I'm using is to open up a group of tiles and then append
> >> them to the seamless table. This seems to work to a point put then it
> >> suddenly stops appending the tiles. I've got no idea why this is and
> >> was advised to check in the registry for a key called MAXFILES and, if
> >> it exists, to change the value of it to 100 to see if this resolves the
> >> problem.
> >>
> >> I've had a look in HKEY_LOCAL_MACHINE\Software\MapInfo\MapInfo\Common
> >> and there doesn't seem to be an entry called MAXFILES. There is one
> >> called MaxLevel though, this is currently set to 200.
> >>
> >> I was also advised, by mapinfo support, to try and open all the files
> >> at once and then create a seamless table all at once but this seems
> >> impossible - I'm not sure how many files there are exactly but I think
> >> there are a few thousand so opening them all at once doesn't seem to do
> >> anything - I guess there are too many for it to handle.
> >>
> >> Does anybody have any advice to offer?
> >>
> >> Many thanks in advance!
> >>
> >
> >
>
>
>
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