ptarray_clone_deep()

POINTARRAY* ptarray_clone_deep

(

const POINTARRAY *

ptarray

)

Deep clone a pointarray (also clones serialized pointlist)

Definition at line 630 of file ptarray.c.

References POINTARRAY::flags, FLAGS_SET_READONLY, lwalloc(), LWDEBUG, POINTARRAY::maxpoints, POINTARRAY::npoints, ptarray_point_size(), and POINTARRAY::serialized_pointlist.

Referenced by _lwt_AddFaceSplit(), _lwt_EdgeMotionArea(), _lwt_HealEdges(), lwcurvepoly_construct_from_lwpoly(), lwcurvepoly_linearize(), LWGEOM_dump_rings(), lwline_clone_deep(), lwmcurve_linearize(), lwmsurface_linearize(), lwpoly_clone_deep(), lwpoly_from_lwlines(), lwtriangle_from_lwline(), parse_kml_coordinates(), and ptarray_remove_repeated_points_minpoints().

{
        POINTARRAY *out = lwalloc(sizeof(POINTARRAY));

        LWDEBUG(3, "ptarray_clone_deep called.");

        out->flags = in->flags;
        out->npoints = in->npoints;
        out->maxpoints = in->npoints;

        FLAGS_SET_READONLY(out->flags, 0);

        if (!in->npoints)
        {
                // Avoid calling lwalloc of 0 bytes
                out->serialized_pointlist = NULL;
        }
        else
        {
                size_t size = in->npoints * ptarray_point_size(in);
                out->serialized_pointlist = lwalloc(size);
                memcpy(out->serialized_pointlist, in->serialized_pointlist, size);
        }

        return out;
}

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