John,
The DXF attributes should be converted into .TAB file fields if you
ticked the 'Preserve Attribute Data' option in the MapInfo 'DXF
Import Information' dialog. There can be no link to the DXF file.
If you did this and the data is still not translating then it may be
that the data in the DXF file, assuming it was created by AutoCAD,
probably isn't attribute data. As you may be aware, tabular data in
AutoCAD can be attached to graphical objects by a number of methods.
The simplest and oldest method being the use of Block Attributes (a
block is a collection of graphical objects, an attribute is the
textural data). But there are other methods, EED (Extended Entity
Data), Object Data Tables, and links to external databases. As far as
I'm aware, MapInfo will only read Block Attributes from a DXF file,
which is fairly limiting. I could be wrong, as I've not tested this,
but the terminology used suggests I'm correct. I'm not sure how the
Universal Translator copes with tabular data in DXF files.
So it may not be a straight forward process translating the data you
want.
Keith
> From: "John Elliot" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Subject: MI DXF import and local grid
> Date: Sun, 21 May 2000 23:07:12 +1000
> 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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>
Keith Campbell
GIS Consultant
W S Atkins Consultants Ltd
UK
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