Thanks Guy,
I actually encountered that session projection quirk you mentioned, and fixed it as suggested,
Regards, Hugh.
----- Original Message -----
From: "Guy E Corcoran" <[EMAIL PROTECTED]>
To: "Strawbridge Nola" <[EMAIL PROTECTED]>, mapinfo-l@lists.directionsmag.com, [EMAIL PROTECTED]
Subject: Re: [MI-L] RE: Geo-coding
Date: Mon, 9 Oct 2006 14:03:20 +1300
Nola and Hugh,
This is how I'd update the columns too, but do not forget to set the session projection to the correct coordinate system before running the update query.
Even if your map is in the correct projection somehow we have found that MI will default to something else (usually Non-Earth) when updating the columns.
This can be set in the Options/Preferences/Map Window dialogue, or using a string in the Mapbasic window.
For example:
Set Map XY Units "m" CoordSys Earth Projection 18, 31, "m", 173, -41, 2510000, 6023150
sets the correct paramters for New Zealand Map Grid.
regards
Guy Corcoran
Business Solutions
GIS / Data Management Technician
MWH NZ Ltd. (Christchurch)
Ph: (64-3) 343-8728
Mob: (64) 21 109-0735
Fax: (64-3) 341-5345
"Strawbridge Nola" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]09/10/2006 10:54
<mapinfo-l@lists.directionsmag.com> [MI-L] RE: Geo-coding
Hugh,
You could try Table/Update Column to get current coords displayed- i.e.
Coord_X=CentroidX(obj),Coord_Y=CentroidY(obj).
HTH
Nola
Nola Strawbridge
GIS Admin/Analyst
City Works & Services
Cairns City Council
Tel: 4044 3219
Fax: 4044 3838
email: [EMAIL PROTECTED]
---------------->
Message: 3
Date: Sat, 07 Oct 2006 14:02:09 +0000
From: "h mangan" <[EMAIL PROTECTED]>
Subject: [MI-L] Geo-coding
To: mapinfo-l@lists.directionsmag.com
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="iso-8859-1"
Hi,
I'm new to MapInfo & trying to re-geo code a list of POI's I was given that had inaccurate geo-references. The file was in CSV format.
I opened the CSV file in MapInfo, created points using the incorrect X,Y's to view these points against my background map (of Dublin, Ireland). I then made the layer editable and where necessary dragged the points to their correct location.
I then saved the layer, and exported it as a MIF file. I then re-imported the MIF file to check that points I'd moved where in their new correct location. They were.
BUT the data in the X,Y column in the attribute table of the still holds the original incorrect value. I know I have to use the Table / GeoCode dialog box, to update this, but I can't figure out how.
Can anyone suggest a decent on-line guide, I guess a little knowledge is a dangerous thing.
I'm using MapInfo Prof 7.5
Thanks, Hugh.
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