lwcompound_to_wkt_sb()

static void lwcompound_to_wkt_sb ( const LWCOMPOUND *  comp, stringbuffer_t *  sb, int  precision, uint8_t  variant  )

static

Definition at line 312 of file lwout_wkt.c.

{
        uint32_t i = 0;
 
        if ( ! (variant & WKT_NO_TYPE) )
        {
                stringbuffer_append(sb, "COMPOUNDCURVE"); /* "COMPOUNDCURVE" */
                dimension_qualifiers_to_wkt_sb((LWGEOM*)comp, sb, variant);
        }
        if ( comp->ngeoms < 1 )
        {
                empty_to_wkt_sb(sb);
                return;
        }
 
        stringbuffer_append(sb, "(");
        variant = variant | WKT_IS_CHILD; /* Inform the sub-geometries they are childre */
        for ( i = 0; i < comp->ngeoms; i++ )
        {
                int type = comp->geoms[i]->type;
                if ( i > 0 )
                        stringbuffer_append(sb, ",");
                /* Linestring subgeoms don't get type identifiers */
                if ( type == LINETYPE )
                {
                        lwline_to_wkt_sb((LWLINE*)comp->geoms[i], sb, precision, variant | WKT_NO_TYPE );
                }
                /* But circstring subgeoms *do* get type identifiers */
                else if ( type == CIRCSTRINGTYPE )
                {
                        lwcircstring_to_wkt_sb((LWCIRCSTRING*)comp->geoms[i], sb, precision, variant );
                }
                else
                {
                        lwerror("lwcompound_to_wkt_sb: Unknown type received %d - %s", type, lwtype_name(type));
                }
        }
        stringbuffer_append(sb, ")");
}

References CIRCSTRINGTYPE, dimension_qualifiers_to_wkt_sb(), empty_to_wkt_sb(), LWCOMPOUND::geoms, LINETYPE, lwcircstring_to_wkt_sb(), lwerror(), lwline_to_wkt_sb(), lwtype_name(), LWCOMPOUND::ngeoms, precision, stringbuffer_append(), LWGEOM::type, variant, WKT_IS_CHILD, and WKT_NO_TYPE.

Referenced by lwcurvepoly_to_wkt_sb(), lwgeom_to_wkt_sb(), and lwmcurve_to_wkt_sb().

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