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| GeoCommunity Mailing List |
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| Subject: | Re: [gislist] ESRI shape to MapInfo TAB file convertor |
| Date: |
06/01/2006 07:15:01 AM |
| From: |
Tripp Corbin |
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Selvan,
I have never used Map to export to MapInfo formats but do regularly
export drawing files to Shapefiles and coverages. Some things to
remember that might be helpful. First, in order to export a projection
with a shapefile or coverage you must assign the projection to the dwg
file using the Map tool to assign a global coordinate system. If you
have done this you will get a prj file along with your shapefile. The
prj file contains the projection information. Second, a dwg file can
contain multiple entity types (points, lines, polygons, and annotation).
A shapefile can only contain a single entity type so make sure you are
selecting the correct type of shapefile when you export as well as
selecting the correct layers that match that type in the dwg. Also
remember there is no such thing as an annotation shapefile. Shapefiles
do not store text. Third, Shapefiles use dBase to store attribute
information. This format has limits. Try keeping field names and values
as simple as possible. Not only will it help performance but reduce the
chance of problems. Lastly, Map has two different import/export engines
embedded in it. The main one is based on Safe Software's FME engine
which has become the default industry standard. ESRI also uses it for
the Data Interoperability extension. For whatever reason this engine
seems to have problems from time to time. The other engine is the old
import/export engine that Map first employed. The code is still in the
software. It can be access by using the mapimport4 and mapexport4
commands on the command line. This old engine will sometimes work when
the primary one will not.
I hope this helps.
Tripp Corbin, MCP, GISP
Associate Vice President, GIS/Mapping
ESRI Authorized Instructor
Keck & Wood, Inc.
www.keckwood.com
(678) 417-4013
(678) 417-8785 fax
Keck & Wood, Inc offers instructor led and virtual training for ESRI's
ArcGIS & ArcView software.
Please visit www.keckwood.com for more information including a schedule
of upcoming classes.
-----Original Message-----
From: gislist-bounces@lists.geocomm.com
[mailto:gislist-bounces@lists.geocomm.com] On Behalf Of Selvan
Sent: Thursday, June 01, 2006 7:45 AM
To: gislist@lists.geocomm.com
Subject: [gislist] ESRI shape to MapInfo TAB file convertor
Hi Folks..
One more interesting Question to discuss on this intelligent list.
I am basically a MapInfo user, when i create polygons with a lenghty
codes
as the attributes.During the migration process
using Autocad map (the latest version to mention).I use map export along
the
attributes and other stuff into Esri shape.
When i tend to translate the ESRI shape to MapInfo TAB file..I get only
the
attribute data in my table..i can see any
graphics at all..i am following all the process such as assigning
projection
& other stuffs.
I also think it could be due to lenghty code attribute (Character About
254).As anyone come across such problem.
It works perfect for 90% of the cases i do..i am really unsure what
could be
the reason for this back logg?
Can anyone suggest me any free download convertor that can convert ESRI
shapes file to MapInfo TAB file, where in i get both graphics and
attributes.
Advance thanks for all Gigantic GIS experts who are going to remove me
out
of this problem
Thanks & Regds
Selvan
Geological Mapping Department Co-ordinator.
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