loading AutoCAD file into MapInfo

[Ishmael Okine]

Hello list,

I need help on how to load AutoCAD file/drawings into MapInfo version
9.0

regards,

Ishmael

[Gamiz Ribelles, Sergi (Regsa)]

Hi Ishmael,
Anyway you must translate your DWG file. You can use Universal Translator tool, but I recommend the table/import/DXF dialog. In this case you must save your DWG file as DXF version R12 (other DXF versions aren't imported). Using import dialog you'll be able to join or separate autocad layers and others features you don't have using universal translator otherwise.
In order to keep elevation values from Autocad layers you must care with the type of objects in autocad layers: any layer with type objects mixture cannot import Z values.

Hope this helps

Sergi Gàmiz Ribelles (627481954)
REGS DE CATALUNYA S.A. ( www.regsa.cat <http://www.regsa.cat> )
Unitat de Promoció de Regadius i Concentració Parcel·lària
c/General Brito, 6, 5è
25007 Lleida
tel. 973222838 fax 973222627
sga...@regsa.cat <mailto:sga...@regsa.cat>


-----Mensaje original-----
De: Ishmael Okine [mailto:oshw...@gmail.com]
Enviado el: martes, 24 de noviembre de 2009 18:46
Para: MapInfo-L
Asunto: [MI-L] loading AutoCAD file into MapInfo

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[Ishmael Okine]

Thanks.

How can I also geo-reference the AutoCAD designs on the mapinfo?

regards,

Ishmael 

[college.atlas]

Previously posted in this link

http://groups.google.com/group/mapinfo-l/browse_thread/thread/376d37196202cf86/69a3b3f0065e8382

Universal Translator can handle the job without ArcGIS.
In the case of CAD you need to check the drawing to ensure it's
actually geocoded as Dinesh suggests.
CAD files may have arbitrary coordinates, scales and rotations.
You have to prepare the CAD files BEFORE using Universal Translator.
Universal translator will not correct a CAD file that isn't
geographically correct.
For example, say you have a property boundary that is 50 meters by 20
meters. You can plot this in CAD as 5000 cm x 2000 cm. If you use UT
to convert this it will come in as 5000 m x 2000 m
Using the same example, CAD presumes rectangular coordinate system
not
a spherical coordinate system. So it is unlikely (not impossible)
that
your CAD plans are WGS84. They are most likely GRID projected
coordinates. As I don't know where you are in the world you'll need
to
do some work.
Open one of your DXF files in a text editor. If they are large files
I
recommend Notepad++. You can read a DXF file. Look for coordinate
pairs.
In the DXF you will see repeating patterns like this
10
368.25311510499449
20
219.32048154032009
30
0.0
Basically 10,20,30 tell CAD to read the following values as X,Y,Z. In
this example X = 368.253, Y = 219.320, Z = 0
When you look at your files do the coordinates make sense for the
area
the map is supposed to cover?
This example tell me the file is not geocoded and so cannot be
translated and used directly in Mapinfo. in this case you could use
UT, nominating a Grid projection and then manually move each of the
elements to the correct location. The is a very rough method and not
considered unless you're really desperate.
The only way to do this properly is to open the CAD file in a CAD
editor and move the drawing elements to the correct location in CAD.
Then use UT to translate the corrected file.
Shape files can be difficult to manage. A minimum set of files for is
an SHP, SHX and DBF. However Universal Translator cannot determine
from this set of files what the projection is. You need to either
- Know the projection and tell UT
or
- Guess through trial and error until the TAB file lands in the right
spot.
SHP is a binary so you can open that and read it.
You might get lucky if you open the DBF file in Excel, Access or
Notepadd++ if the supplier has written coordinate data into the DBF
file.
If you are lucky the set of Shape files may have included a .PRJ
file.
This will tell UT the projection of the file to be imported. in this
case the import should have the data land in the correct spot.

On Nov 26, 4:37 am, Ishmael Okine <oshwa...@gmail.com> wrote:
> Thanks.
> How can I also geo-reference the AutoCAD designs on the mapinfo?
>
> regards,
>
> Ishmael
>
> On Tue, Nov 24, 2009 at 6:24 PM, Gamiz Ribelles, Sergi (Regsa) <
>
>
>
> sga...@regsa.cat> wrote:
> > Hi Ishmael,
> > Anyway you must translate your DWG file. You can use Universal Translator
> > tool, but I recommend the table/import/DXF dialog. In this case you must
> > save your DWG file as DXF version R12 (other DXF versions aren't imported).
> > Using import dialog you'll be able to join or separate autocad layers and
> > others features you don't have using universal translator otherwise.
> > In order to keep elevation values from Autocad layers you must care with
> > the type of objects in autocad layers: any layer with type objects mixture
> > cannot import Z values.
>
> > Hope this helps
>
> > Sergi Gàmiz Ribelles (627481954)

> > REGS DE CATALUNYA S.A. (www.regsa.cat<http://www.regsa.cat> )

> > Unitat de Promoció de Regadius i Concentració Parcel·lària
> > c/General Brito, 6, 5è
> > 25007 Lleida
> > tel. 973222838   fax 973222627
> > sga...@regsa.cat <mailto:sga...@regsa.cat>
>
> > -----Mensaje original-----

> > De: Ishmael Okine [mailto:oshwa...@gmail.com]

> > Enviado el: martes, 24 de noviembre de 2009 18:46
> > Para: MapInfo-L
> > Asunto: [MI-L] loading AutoCAD file into MapInfo
>
> > Hello list,
>
> > I need help on how to load AutoCAD file/drawings into MapInfo version 9.0
>
> > regards,
>
> > Ishmael
>
> > --
>
> > You received this message because you are subscribed to the Google Groups
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>
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