Export Polygons as CSV and re-draw same in MapInfo

[Ammar Qadir]

I have many polygons in MapInfo and i want to rename them. There is one way that i Know editing the Polygons in MapInfo. As the polygons are in large number and it will take me lot of time to do it one by one. Is there any other way to do it quickly?

Is it possible to export the polygons in CSV, rename it and then get the same polygon with new name in MapInfo

[Uffe Kousgaard]

Hi,

You can export to MIF/MID and then locate the current names in the MID file. Edit and re-import. MID is similar to CSV.

If there is a some systematic way of the renaming, you can also do it in MapInfo for all polygons in one operation, using the update command.

Regards
Uffe Kousgaard


Ammar Qadir wrote:

I have many polygons in MapInfo and i want to rename them. There is one way that i Know editing the Polygons in MapInfo. As the polygons are in large number and it will take me lot of time to do it one by one. Is there any other way to do it quickly?

Is it possible to export the polygons in CSV, rename it and then get the same polygon with new name in MapInfo

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[Peter Horsbøll Møller]

You could also use Table > Update Column to update your entire table in one step

But as Uffe mentioned, that does require that you have some sort of systematic renaming in mind

Do you know what each polygon should be renamed to?

Peter Horsbøll Møller

Pitney Bowes Software

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Date: Wed, 1 Oct 2014 06:54:18 -0700
From: ammar...@gmail.com
To: mapi...@googlegroups.com
Subject: [MI-L] Export Polygons as CSV and re-draw same in MapInfo

I have many polygons in MapInfo and i want to rename them. There is one way that i Know editing the Polygons in MapInfo. As the polygons are in large number and it will take me lot of time to do it one by one. Is there any other way to do it quickly?

Is it possible to export the polygons in CSV, rename it and then get the same polygon with new name in MapInfo

[David Sherrod]

I do this task--changing existing text in columnar data--more times than I should as maps evolve.

Common sequence of steps is to use the SQL query to select all from a table for CONDITION: [COLUMN_to_change]="existing text".

Then modify the QUERY1 (or 2 or 3 etc) along Peter or Uffe's line, Update QUERY1, update [COLUMN_to_change], updated with the "new text".  The quotes are part of the deal for text strings.

It's difficult to imagine a faster method than this bunching of similar items and renaming.

WARNING here:  If you're a beginner in MapInfo, then pay careful attention to the first step of "TABLE, Update Column," because you must specify the QUERY table just created. It rarely is the default in the dialog box, so you must select it manually.  If careless at this step, you may unwittingly update data in some parent table instead of the desired QUERY table.

[KK KTG]

I update the polygons with row id and have a unique name as well..thats safer as well..does that help you.

Kalai Selvan.K

KTG Infotech

GIS (Mineral Exploration)
Geological Mapping (Historical Map) Data Integration, Analysis, Capturing and Data Conversion
for Geochemistry,IP and Drill logs
Skypes-ktgcad