lwpoly_perimeter()

double lwpoly_perimeter

(

const LWPOLY *

poly

)

Compute the sum of polygon rings length.

Could use a more numerically stable calculator...

Definition at line 557 of file lwpoly.c.

References LWDEBUGF, LWPOLY::nrings, ptarray_length(), and LWPOLY::rings.

Referenced by lwgeom_perimeter().

{
        double result=0.0;
        int i;

        LWDEBUGF(2, "in lwgeom_polygon_perimeter (%d rings)", poly->nrings);

        for (i=0; i<poly->nrings; i++)
                result += ptarray_length(poly->rings[i]);

        return result;
}

Here is the call graph for this function:

Here is the caller graph for this function: