lwgeom_filter_m_ignore_null()

static LWGEOM * lwgeom_filter_m_ignore_null ( LWGEOM *  geom, double  min, double  max, int  returnm  )

static

Definition at line 173 of file lwmval.c.

{
        LWDEBUGF(2, "Entered %s",__func__);
 
        LWGEOM *geom_out = NULL;
 
        if(!FLAGS_GET_M(geom->flags))
                return geom;
        switch ( geom->type )
        {
                case POINTTYPE:
                {
                        LWDEBUGF(4,"Type found is Point, %d", geom->type);
                        geom_out = lwpoint_as_lwgeom(lwpoint_filterm((LWPOINT*) geom, min, max,returnm));
                        break;
                }
                case LINETYPE:
                {
                        LWDEBUGF(4,"Type found is Linestring, %d", geom->type);
                        geom_out = lwline_as_lwgeom(lwline_filterm((LWLINE*) geom, min,max,returnm));
                        break;
                }
                /* Polygon has 'nrings' and 'rings' elements */
                case POLYGONTYPE:
                {
                        LWDEBUGF(4,"Type found is Polygon, %d", geom->type);
                        geom_out = lwpoly_as_lwgeom(lwpoly_filterm((LWPOLY*)geom, min, max,returnm));
                        break;
                }
 
                /* All these Collection types have 'ngeoms' and 'geoms' elements */
                case MULTIPOINTTYPE:
                case MULTILINETYPE:
                case MULTIPOLYGONTYPE:
                case COLLECTIONTYPE:
                {
                        LWDEBUGF(4,"Type found is collection, %d", geom->type);
                        geom_out = (LWGEOM*) lwcollection_filterm((LWCOLLECTION*) geom, min, max,returnm);
                        break;
                }
                /* Unknown type! */
                default:
                        lwerror("%s: Unsupported geometry type: %s", __func__, lwtype_name(geom->type));
        }
        return geom_out;
 
}

References COLLECTIONTYPE, LWGEOM::flags, FLAGS_GET_M, LINETYPE, lwcollection_filterm(), LWDEBUGF, lwerror(), lwline_as_lwgeom(), lwline_filterm(), lwpoint_as_lwgeom(), lwpoint_filterm(), lwpoly_as_lwgeom(), lwpoly_filterm(), lwtype_name(), MULTILINETYPE, MULTIPOINTTYPE, MULTIPOLYGONTYPE, POINTTYPE, POLYGONTYPE, and LWGEOM::type.

Referenced by lwcollection_filterm(), and lwgeom_filter_m().

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