413 cvApproxChains( CvSeq*              src_seq,  in cvApproxChains()  argument
427     if( !src_seq || !storage )  in cvApproxChains()
432     while( src_seq != 0 )  in cvApproxChains()
434         int len = src_seq->total;  in cvApproxChains()
446                 IPPI_CALL( icvApproximateChainTC89( (CvChain *) src_seq,  in cvApproxChains()
481         if( src_seq->v_next && len >= minimal_perimeter )  in cvApproxChains()
486             src_seq = src_seq->v_next;  in cvApproxChains()
490             while( src_seq->h_next == 0 )  in cvApproxChains()
492                 src_seq = src_seq->v_prev;  in cvApproxChains()
493                 if( src_seq == 0 )  in cvApproxChains()
499             if( src_seq )  in cvApproxChains()
500                 src_seq = src_seq->h_next;  in cvApproxChains()
933     CvSeq* src_seq = 0;  in cvApproxPoly()  local
943         src_seq = (CvSeq*)array;  in cvApproxPoly()
944         if( !CV_IS_SEQ_POLYLINE( src_seq ))  in cvApproxPoly()
950             storage = src_seq->storage;  in cvApproxPoly()
954         CV_CALL( src_seq = cvPointSeqFromMat(  in cvApproxPoly()
967         header_size = src_seq->header_size;  in cvApproxPoly()
969     if( !CV_IS_SEQ_POLYLINE( src_seq ))  in cvApproxPoly()
971         if( CV_IS_SEQ_CHAIN( src_seq ))  in cvApproxPoly()
983         header_size = src_seq->header_size;  in cvApproxPoly()
991     while( src_seq != 0 )  in cvApproxPoly()
1001             if( CV_SEQ_ELTYPE(src_seq) == CV_32SC2 )  in cvApproxPoly()
1003                 IPPI_CALL( icvApproxPolyDP_32s( src_seq, header_size, storage,  in cvApproxPoly()
1008                 IPPI_CALL( icvApproxPolyDP_32f( src_seq, header_size, storage,  in cvApproxPoly()
1036         if( src_seq->v_next )  in cvApproxPoly()
1041             src_seq = src_seq->v_next;  in cvApproxPoly()
1045             while( src_seq->h_next == 0 )  in cvApproxPoly()
1047                 src_seq = src_seq->v_prev;  in cvApproxPoly()
1048                 if( src_seq == 0 )  in cvApproxPoly()
1054             if( src_seq )  in cvApproxPoly()
1055                 src_seq = src_seq->h_next;  in cvApproxPoly()