Re: how to calculate the area of polygon?

Namba Takaya <[email protected]>
Newsgroups gmane.comp.gis.gmt.user
Message-ID <[email protected]> 
Joaquim and Peter
Thank you very much for your suggestion.
I will try to install GMT5 first and try gmtspatial after try grdvolume in GMT4.
I will inform you of the result later.
regards,
takaya

Date: Thu, 28 Nov 2013 14:47:07 +0000
From: [email protected]
Subject: Re: [GMT-HELP] how to calculate the area of polygon?
To: [email protected]


  
    
  
  
    gmtspatial -Q seams to do it.

    

    http://gmtrac.soest.hawaii.edu/doc/5.1.0/gmtspatial.html

    

    Joaquim

    

    
      
      Dear sir
        

        
        

        
        Could you tell me how to calculate the area of polygon(hour
          points) like
        

        
        1.   5:00E  55:00S 
        2.   6:00E  55:00S
        3.   6:00E  56:00S
        4.   5:00E  56:00S
        

        
        regards,
        

        
        takaya
      
    
    

  

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