lw_curvering_getfirstpoint2d_cp()

static const POINT2D* lw_curvering_getfirstpoint2d_cp ( LWGEOM *  geom )

static

Definition at line 949 of file measures.c.

References CIRCSTRINGTYPE, COMPOUNDTYPE, LWCOMPOUND::geoms, getPoint2d_cp(), LINETYPE, lwerror(), LWLINE::points, and LWGEOM::type.

Referenced by lw_dist2d_curvepoly_curvepoly().

{
        switch( geom->type )
        {
                case LINETYPE:
                        return getPoint2d_cp(((LWLINE*)geom)->points, 0);
                case CIRCSTRINGTYPE:
                        return getPoint2d_cp(((LWCIRCSTRING*)geom)->points, 0);
                case COMPOUNDTYPE:
                {
                        LWCOMPOUND *comp = (LWCOMPOUND*)geom;
                        LWLINE *line = (LWLINE*)(comp->geoms[0]);
                        return getPoint2d_cp(line->points, 0);
                }
                default:
                        lwerror("lw_curvering_getfirstpoint2d_cp: unknown type");
        }
        return NULL;
}

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