[mapserver-users] As you can calculate the area of a ShapeObj type POLYGON?

[joel ml]

Here part of the code that was trying to do : 
shapeObj s=new shapeObj(MS_SHAPE_TYPE.MS_SHAPE_POLYGON.swigValue());
        
    int n=ListaCoordenadas.size();
    lineObj lin=new lineObj();
        for (int i = 0; i < n; i++) {            
            pointObj p1=ListaCoordenadas.get(i);
            lin.add(p1);
        }
    lin.add(ListaCoordenadas.get(0));
    s.add(lin);   
    Xutil.print("wkt :  "+ s.toWKT());
     area=s.getArea();
    Xutil.print("area total : "+area);

The problem is that i launches an error in calculating the 
Area




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