ptarray_flip_coordinates()

POINTARRAY * ptarray_flip_coordinates ( POINTARRAY *  pa )

extern

Reverse X and Y axis on a given POINTARRAY.

Definition at line 368 of file ptarray.c.

{
        uint32_t i;
        double d;
        POINT4D p;
 
        for (i=0 ; i < pa->npoints ; i++)
        {
                getPoint4d_p(pa, i, &p);
                d = p.y;
                p.y = p.x;
                p.x = d;
                ptarray_set_point4d(pa, i, &p);
        }
 
        return pa;
}

References getPoint4d_p(), POINTARRAY::npoints, ptarray_set_point4d(), POINT4D::x, and POINT4D::y.

Referenced by parse_gml_curve(), parse_gml_data(), parse_gml_line(), parse_gml_linearring(), parse_gml_patch(), parse_gml_point(), parse_gml_polygon(), and parse_gml_triangle().

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