John,
Personally I have never had success preserving attributes via DXF, so I
can't help you there, but the local coords can be handled by MapInfo very
nicely.
It is possible to set up a custom projection for your local grid that uses
an Affine transformation in the MapInfo projection file.
This is documented in the manuals somewhere (?)
I have the calculation of this largely automated, so if you like, send me
coords for two known points and I can send back the projection clause.
Regards
Neil Moseley
Geodata Computing Services
>I am trying to edit data which has been imported from a DXF file which
>comprises topographic contours, streams, and cultural data (buildings,
roads
>etc)
>I have imported the DXF file with attributes and with a different table
for
>each layer. After importing I now have the large DXF file and each
MapInfo
>table has a .DAT, .ID, .MAP, and .TAB file. The DXF data has used the
>Australian Map Grid and this has been correctly retained after
importation.
>However I wish to use a local non-earth grid to record geological/mine
data
>and I have a spreadsheet which will convert Australian Map Grid
coordinates
>to the local grid coordinates.
>
>My problem is that when I open in a browser window any of the TAB files,
>created by importation from the DXF file, they only show an ID column and
no
>other data is displayed. Is all the data held in the original DXF file
and
>a link maintained with the MapInfo tables? Is it possible, without
writing
>code, to convert the data to the the local grid coordinates?
>
>Thanks for any help,
>
>John Elliot
>Bathurst, NSW 2795, Australia
>Email: [EMAIL PROTECTED]
>
>
>
>
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