lw_curvering_getfirstpoint2d_cp()

static const POINT2D* lw_curvering_getfirstpoint2d_cp ( LWGEOM *  geom )

static

Definition at line 886 of file measures.c.

{
        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;
}

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

Referenced by lw_dist2d_curvepoly_curvepoly(), lw_dist2d_tri_circstring(), and lw_dist2d_tri_curvepoly().

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