Example #1
0
def get_aln_data(t_seq, q_seq):
    aln_data = []
    #x = []
    #y = []
    K = 8
    seq0 = t_seq
    lk_ptr = kup.allocate_kmer_lookup(1 << (K * 2))
    sa_ptr = kup.allocate_seq(len(seq0))
    sda_ptr = kup.allocate_seq_addr(len(seq0))
    kup.add_sequence(0, K, seq0, len(seq0), sda_ptr, sa_ptr, lk_ptr)
    q_id = "dummy"

    kmer_match_ptr = kup.find_kmer_pos_for_seq(
        q_seq, len(q_seq), K, sda_ptr, lk_ptr)
    kmer_match = kmer_match_ptr[0]

    if kmer_match.count != 0:
        aln_range_ptr = kup.find_best_aln_range(kmer_match_ptr, K, K * 5, 12)
        aln_range = aln_range_ptr[0]
        #x, y = list(zip(* [(kmer_match.query_pos[i], kmer_match.target_pos[i])
        #              for i in range(kmer_match.count)]))

        s1, e1, s2, e2 = aln_range.s1, aln_range.e1, aln_range.s2, aln_range.e2

        log('Mapped (q, s1 = {}, e1 = {}, len1 = {}, (e1 - s1) = {}, t, s2 = {}, e2 = {}, (e2 - s2) = {}, len2 = {})'.format(
                s1, e1, e1 - s1, len(q_seq), s2, e2, e2 - s2, len(t_seq)))

        max_len = 250000 # to keep allocations < 16GB, given band_tol=1500
        if (e1 - s1) >= max_len or (e2 - s2) >= max_len:
            # DW.align() would crash, so raise here.
            # (500000 is the approx. upper bound for int overflow,
            #  but some users run out of memory anyway.)
            raise TooLongError('q_len={} or t_len={} are too big, over 500k'.format(
                (e1-s1), (e2-s2)))
        if e1 - s1 > 100:
            log('Calling DW_banded.align(q, s1 = {}, e1 = {}, len1 = {}, (e1 - s1) = {}, t, s2 = {}, e2 = {}, (e2 - s2) = {}, len2 = {})'.format(
                s1, e1, e1 - s1, len(q_seq), s2, e2, e2 - s2, len(t_seq)))
            alignment = DWA.align(q_seq[s1:e1], e1 - s1,
                                  seq0[s2:e2], e2 - s2,
                                  1500, 1)

            if alignment[0].aln_str_size > 100:
                aln_data.append((q_id, 0, s1, e1, len(q_seq), s2, e2, len(
                    seq0), alignment[0].aln_str_size, alignment[0].dist))
                aln_str1 = alignment[0].q_aln_str
                aln_str0 = alignment[0].t_aln_str

            DWA.free_alignment(alignment)

        kup.free_aln_range(aln_range_ptr)

    kup.free_kmer_match(kmer_match_ptr)
    kup.free_kmer_lookup(lk_ptr)
    kup.free_seq_array(sa_ptr)
    kup.free_seq_addr_array(sda_ptr)
    return aln_data #, x, y
Example #2
0
def get_aln_data(t_seq, q_seq):
    aln_data = []
    #x = []
    #y = []
    K = 8
    seq0 = t_seq
    lk_ptr = kup.allocate_kmer_lookup(1 << (K * 2))
    sa_ptr = kup.allocate_seq(len(seq0))
    sda_ptr = kup.allocate_seq_addr(len(seq0))
    kup.add_sequence(0, K, seq0, len(seq0), sda_ptr, sa_ptr, lk_ptr)
    q_id = "dummy"

    kmer_match_ptr = kup.find_kmer_pos_for_seq(q_seq, len(q_seq), K, sda_ptr,
                                               lk_ptr)
    kmer_match = kmer_match_ptr[0]

    if kmer_match.count != 0:
        aln_range_ptr = kup.find_best_aln_range(kmer_match_ptr, K, K * 5, 12)
        aln_range = aln_range_ptr[0]
        #x, y = list(zip(* [(kmer_match.query_pos[i], kmer_match.target_pos[i])
        #              for i in range(kmer_match.count)]))

        s1, e1, s2, e2 = aln_range.s1, aln_range.e1, aln_range.s2, aln_range.e2

        max_len = 250000  # to keep allocations < 16GB, given band_tol=1500
        if (e1 - s1) >= max_len or (e2 - s2) >= max_len:
            # DW.align() would crash, so raise here.
            # (500000 is the approx. upper bound for int overflow,
            #  but some users run out of memory anyway.)
            raise TooLongError(
                'q_len={} or t_len={} are too big, over 500k'.format(
                    (e1 - s1), (e2 - s2)))
        if e1 - s1 > 100:
            log('Calling DW_banded.align(q, {}, t, {}, 1500, 1)'.format(
                e1 - s1, e2 - s2))
            alignment = DWA.align(q_seq[s1:e1], e1 - s1, seq0[s2:e2], e2 - s2,
                                  1500, 1)

            if alignment[0].aln_str_size > 100:
                aln_data.append(
                    (q_id, 0, s1, e1, len(q_seq), s2, e2, len(seq0),
                     alignment[0].aln_str_size, alignment[0].dist))
                aln_str1 = alignment[0].q_aln_str
                aln_str0 = alignment[0].t_aln_str

            DWA.free_alignment(alignment)

        kup.free_aln_range(aln_range_ptr)

    kup.free_kmer_match(kmer_match_ptr)
    kup.free_kmer_lookup(lk_ptr)
    kup.free_seq_array(sa_ptr)
    kup.free_seq_addr_array(sda_ptr)
    return aln_data  #, x, y
Example #3
0
def get_aln_data(t_seq, q_seq):
    """
    Inputs in bytes.
    """
    aln_data = []
    K = 8
    seq0 = t_seq
    lk_ptr = kup.allocate_kmer_lookup(1 << (K * 2))
    sa_ptr = kup.allocate_seq(len(seq0))
    sda_ptr = kup.allocate_seq_addr(len(seq0))
    kup.add_sequence(0, K, seq0, len(seq0), sda_ptr, sa_ptr, lk_ptr)
    q_id = "dummy"

    kmer_match_ptr = kup.find_kmer_pos_for_seq(q_seq, len(q_seq), K, sda_ptr,
                                               lk_ptr)
    kmer_match = kmer_match_ptr[0]

    if kmer_match.count != 0:
        aln_range_ptr = kup.find_best_aln_range(kmer_match_ptr, K, K * 5, 12)
        aln_range = aln_range_ptr[0]

        s1, e1, s2, e2 = aln_range.s1, aln_range.e1, aln_range.s2, aln_range.e2

        log('Mapped (q, s1 = {}, e1 = {}, len1 = {}, (e1 - s1) = {}, t, s2 = {}, e2 = {}, (e2 - s2) = {}, len2 = {})'
            .format(s1, e1, e1 - s1, len(q_seq), s2, e2, e2 - s2, len(t_seq)))

        if e1 - s1 > 100:
            log('Calling edlib.align(q, s1 = {}, e1 = {}, len1 = {}, (e1 - s1) = {}, t, s2 = {}, e2 = {}, (e2 - s2) = {}, len2 = {})'
                .format(s1, e1, e1 - s1, len(q_seq), s2, e2, e2 - s2,
                        len(t_seq)))

            # Align using Edlib instead of DWA.
            edlib_result = edlib.align(q_seq[s1:e1], seq0[s2:e2], mode="NW")

            delta_l = len(q_seq) - len(t_seq)
            cov = float(e1 - s1) / float(len(q_seq))
            idt = float(e1 - s1 - edlib_result['editDistance']) / float(e1 -
                                                                        s1)

            aln_data.append((q_id, 0, s1, e1, len(q_seq), s2, e2, len(seq0),
                             delta_l, idt, cov))

        kup.free_aln_range(aln_range_ptr)

    kup.free_kmer_match(kmer_match_ptr)
    kup.free_kmer_lookup(lk_ptr)
    kup.free_seq_array(sa_ptr)
    kup.free_seq_addr_array(sda_ptr)
    return aln_data  #, x, y
Example #4
0
def get_aln_data(t_seq, q_seq):
    aln_data = []
    x = []
    y = []
    K = 8
    seq0 = t_seq
    lk_ptr = kup.allocate_kmer_lookup(1 << (K * 2))
    sa_ptr = kup.allocate_seq(len(seq0))
    sda_ptr = kup.allocate_seq_addr(len(seq0))
    kup.add_sequence(0, K, seq0, len(seq0), sda_ptr, sa_ptr, lk_ptr)
    q_id = "dummy"

    kmer_match_ptr = kup.find_kmer_pos_for_seq(q_seq, len(q_seq), K, sda_ptr,
                                               lk_ptr)
    kmer_match = kmer_match_ptr[0]

    if kmer_match.count != 0:
        aln_range_ptr = kup.find_best_aln_range(kmer_match_ptr, K, K * 5, 12)
        aln_range = aln_range_ptr[0]
        x, y = zip(*[(kmer_match.query_pos[i], kmer_match.target_pos[i])
                     for i in range(kmer_match.count)])

        s1, e1, s2, e2 = aln_range.s1, aln_range.e1, aln_range.s2, aln_range.e2

        if e1 - s1 > 100:

            alignment = DWA.align(q_seq[s1:e1], e1 - s1, seq0[s2:e2], e2 - s2,
                                  1500, 1)

            if alignment[0].aln_str_size > 100:
                aln_data.append(
                    (q_id, 0, s1, e1, len(q_seq), s2, e2, len(seq0),
                     alignment[0].aln_str_size, alignment[0].dist))
                aln_str1 = alignment[0].q_aln_str
                aln_str0 = alignment[0].t_aln_str

            DWA.free_alignment(alignment)

        kup.free_aln_range(aln_range_ptr)

    kup.free_kmer_match(kmer_match_ptr)
    kup.free_kmer_lookup(lk_ptr)
    kup.free_seq_array(sa_ptr)
    kup.free_seq_addr_array(sda_ptr)
    return aln_data, x, y
Example #5
0
def get_aln_data(t_seq, q_seq):
    aln_data = []
    K = 8
    seq0 = t_seq
    lk_ptr = kup.allocate_kmer_lookup(1 << (K * 2))
    sa_ptr = kup.allocate_seq(len(seq0))
    sda_ptr = kup.allocate_seq_addr(len(seq0))
    kup.add_sequence(0, K, seq0, len(seq0), sda_ptr, sa_ptr, lk_ptr)
    q_id = "dummy"

    kmer_match_ptr = kup.find_kmer_pos_for_seq(
        q_seq, len(q_seq), K, sda_ptr, lk_ptr)
    kmer_match = kmer_match_ptr[0]

    if kmer_match.count != 0:
        aln_range_ptr = kup.find_best_aln_range(kmer_match_ptr, K, K * 5, 12)
        aln_range = aln_range_ptr[0]

        s1, e1, s2, e2 = aln_range.s1, aln_range.e1, aln_range.s2, aln_range.e2

        log('Mapped (q, s1 = {}, e1 = {}, len1 = {}, (e1 - s1) = {}, t, s2 = {}, e2 = {}, (e2 - s2) = {}, len2 = {})'.format(
                s1, e1, e1 - s1, len(q_seq), s2, e2, e2 - s2, len(t_seq)))

        if e1 - s1 > 100:
            log('Calling edlib.align(q, s1 = {}, e1 = {}, len1 = {}, (e1 - s1) = {}, t, s2 = {}, e2 = {}, (e2 - s2) = {}, len2 = {})'.format(
                s1, e1, e1 - s1, len(q_seq), s2, e2, e2 - s2, len(t_seq)))

            # Align using Edlib instead of DWA.
            edlib_result = edlib.align(q_seq[s1:e1], seq0[s2:e2], mode="NW")

            delta_l = len(q_seq) - len(t_seq)
            cov = float(e1 - s1) / float(len(q_seq))
            idt = float(e1 - s1 - edlib_result['editDistance']) / float(e1 - s1)

            aln_data.append((q_id, 0, s1, e1, len(q_seq), s2, e2, len(seq0),
                            delta_l, idt, cov))

        kup.free_aln_range(aln_range_ptr)

    kup.free_kmer_match(kmer_match_ptr)
    kup.free_kmer_lookup(lk_ptr)
    kup.free_seq_array(sa_ptr)
    kup.free_seq_addr_array(sda_ptr)
    return aln_data #, x, y
def get_aln_data(t_seq, q_seq):
    aln_data = []
    x = []
    y = []
    K = 8
    seq0 = t_seq
    lk_ptr = kup.allocate_kmer_lookup( 1 << (K * 2) )
    sa_ptr = kup.allocate_seq( len(seq0) )
    sda_ptr = kup.allocate_seq_addr( len(seq0) )
    kup.add_sequence( 0, K, seq0, len(seq0), sda_ptr, sa_ptr, lk_ptr)
    q_id = "dummy"
    
    kmer_match_ptr = kup.find_kmer_pos_for_seq(q_seq, len(q_seq), K, sda_ptr, lk_ptr)
    kmer_match = kmer_match_ptr[0]

    if kmer_match.count != 0:
        aln_range_ptr = kup.find_best_aln_range(kmer_match_ptr, K, K*5, 12)
        aln_range = aln_range_ptr[0]
        x,y = zip( * [ (kmer_match.query_pos[i], kmer_match.target_pos[i]) for i in range(kmer_match.count)] )

        s1, e1, s2, e2 = aln_range.s1, aln_range.e1, aln_range.s2, aln_range.e2
        
        if e1 - s1 > 100:

            alignment = DWA.align(q_seq[s1:e1], e1-s1,
                                  seq0[s2:e2], e2-s2,
                                  1500,1)

            if alignment[0].aln_str_size > 100:
                aln_data.append( ( q_id, 0, s1, e1, len(q_seq), s2, e2, len(seq0), alignment[0].aln_str_size, alignment[0].dist ) )
                aln_str1 = alignment[0].q_aln_str
                aln_str0 = alignment[0].t_aln_str

            DWA.free_alignment(alignment)

        kup.free_aln_range(aln_range_ptr) 

    kup.free_kmer_match(kmer_match_ptr)
    kup.free_kmer_lookup(lk_ptr)
    kup.free_seq_array(sa_ptr)
    kup.free_seq_addr_array(sda_ptr)
    return aln_data, x, y