If you own mapinfo, there is an easy way to use mapbasic to create a
script that will split your table up based upon the entity type. It's a
matter of looping through a select statement that filters on object type
and then save the selection as tablename_entity_type.TAB.
Jan Hartmann schreef:
I really would advise you to split them up. Being lazy always creates
more work in the end, I can tell you. I have lots of personal
experience in that field :-)
Jan
Delfos, Jacob wrote:
Hi Jukka,
When I have the data a bit cleaned up, I'll have a look if I can put
something together. Currently I'm still in the process of "sifting
through" :)
I'm dealing with a lot of MapInfo files with mixed geometries, and I
want to see if I can get away with being lazy (meaning I don't split up
tables by geometry).
Regards,
Jacob
-----Original Message-----
From: Rahkonen Jukka [mailto:[EMAIL PROTECTED] Sent: 30
October 2007 14:52
To: Delfos, Jacob; MAPSERVER-USERS@LISTS.UMN.EDU
Subject: RE: [UMN_MAPSERVER-USERS] MapServer and PostGIS GEOMETRY type
Hi Jacob,
Would it be impossible for you to create a couple of such records
and make a controlled trial to see what really happens?
-Jukka Rahkonen-
-----Original Message-----
From: UMN MapServer Users List on behalf of Delfos, Jacob
Sent: Tue 30.10.2007 0:53
To: MAPSERVER-USERS@LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] MapServer and PostGIS GEOMETRY type
Hi Jan,
Thanks for your reply. But I still need to find out how MapServer will
deal with the records that contain an unexpected geometry type. I could
have a polygon layer pointing to a table which I expect to contain
polygons. But if the geometry type of the table is GEOMETRY, then it
could contain a line object. What will MapServer do?
If I do an attribute query on such a table, will it return matching
records even if the geometry object is a line, though the layer is a
polygon layer?
Regards,
Jacob
-----Original Message-----
From: Jan Hartmann [mailto:[EMAIL PROTECTED] Sent: 29 October
2007 20:13
To: Delfos, Jacob
Cc: MAPSERVER-USERS@LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] MapServer and PostGIS
GEOMETRY type
Hi Jacob,
The Mapfile Reference Manual, chapter Layer says
(http://mapserver.gis.umn.edu/docs/reference/mapfile/layer)
------------------------------------------------------------
TYPE [point|line|polygon|circle|annotation|raster|query|chart]
Specifies how the data should be drawn. Need not be the same
as the shapefile type. For example, a polygon shapefile may be
drawn as a point layer, but a point shapefile may not be drawn as a
polygon layer.Common sense rules.
------------------------------------------------------------
You probably just have to try it out on your data.
Jan
Delfos, Jacob wrote:
Hi List,
For a particular client I have to translate a lot of
MapInfo files into
PostGIS. Some files may contain some different geometries,
which ogr2ogr
doesn't like. So I force the geometry type to "GEOMETRY" (-nlt
GEOMETRY). It translates fine, and seems to draw fine in
MapServer. But
how does MapServer really deal with it?
If I have a polygon layer, and point it to a PostGIS table
that contains
objects of the type "GEOMETRY", does it simply ignore
anything that is
not a polygon? What about the results of attribute queries?
Would those
be filtered on the geometry type of the layer?
I can avoid using "GEOMETRY type" by translating the files
in FME, but
I'd prefer to recommend an Open Source solution.
Regards,
Jacob
*JACOB DELFOS
GIS ANALYST
*Maunsell Australia Pty Ltd
629 Newcastle Street, Leederville, WA 6007
PO Box 81, Leederville, WA 6902
Western Australia
ABN 20 093 846 925
Tel + 61 8 9281 6185
Fax + 61 8 9281 6297
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