Selecting Polygon by area

AndrewMAndrewM Global Mapper UserPosts: 17
edited October 2010 in Technical Support
Probably a dumb question, how can I select all lakes with a area greater than 2000 hectares ?

In Mapinfo this is quite simple "Select * from AllLake where Area(obj, "hectare") >= 3000 into Selection"

Is this sort of thing possible in GM ?


  • global_mapperglobal_mapper Administrator Posts: 17,238
    edited October 2010
    You would need to first add measure attributes to selected areas using the Digitizer Tool, then you can use the Search->Search by Attributes menu command to search by attribute value. You can set the area measure units on the General tab of the Configuration dialog.

    Let me know if I can be of further assistance.


    Global Mapper Support
  • AndrewMAndrewM Global Mapper User Posts: 17
    edited October 2010
    Ta Mike ... that works nicely. BTW a polygon select tool would be nice.
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