File: ReadAlign_waspMap.cpp

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#include "ReadAlign.h"

void ReadAlign::waspMap() {

    if (!P.wasp.yes) {
        waspType=-1;
        return;  
    };

    auto nTr1 = nTr;
    auto align1 = trBest;
    auto Var1 = mapGen.Var;

    if (P.pGe.transform.outYes) {
        nTr1 = alignsGenOut.alN;
        align1 = alignsGenOut.alMult[0];
        Var1 = genOut.Var;
        align1->variationAdjust(genOut, Read1[align1->Str==0 ? 0:2]);
    };

    if (align1->varAllele.size()==0) {//no variants, vW tag will not be output
        waspType=-1;
        return;
    } else if (nTr1>1) {//multimapping read
        waspType=2;
        return;
    } else if (align1->varAllele.size()>10) {//too many variants
        waspType=7;
        return;
    };


    waspRA->copyRead(*this);

    vector <char> vA=align1->varAllele;

    for (const auto& a : vA) {
        if (a>3) {//read has N for the variant, drop it
            waspType=3;
            return;
        };
    };

    vector<vector<char>> vvA {{}}; //all combinations
    for (const auto& u : vA) {//cycle over vars, each time add new variant by adding 2 variants to each of the existing combinations
        (void) u; //to avoid unused warning
        vector<vector<char>> r; //temp
        for (const auto& x : vvA) {
            for (const auto& y:{1,2}) {
                r.push_back(x);
                r.back().push_back(y);
            };
        };
        vvA=move(r);
    };


    for (const auto& vA1 : vvA) {//cycle over all combinations

            if (vA1==vA)
                continue; //this combination was already mapped as the real read

            for (uint iv=0; iv<vA1.size(); ++iv) {//set all variants in this combination

                //we assume the homo-vars are already excluded
                char nt2=Var1->snp.nt[align1->varInd.at(iv)][vA1.at(iv)]; //the other allele
                uint vr=align1->varReadCoord.at(iv);//read coordinate

                if (align1->Str==1) {//variant was found on the - strand alignment
                    nt2=3-nt2;
                    vr=Lread-1-vr;
                };
                waspRA->Read1[0][vr]        =nt2;
                waspRA->Read1[1][vr]        =3-nt2;
                waspRA->Read1[2][Lread-1-vr]=3-nt2;
            };

            waspRA->mapOneRead();
            waspRA->multMapSelect();
            waspRA->mappedFilter();

            auto align2 = waspRA->trBest;
            auto nTr2 = waspRA->nTr;

            if (P.pGe.transform.outYes) {
                waspRA->transformGenome();
                nTr2 = waspRA->alignsGenOut.alN;
                align2 = waspRA->alignsGenOut.alMult[0];
            };            

            if (waspRA->unmapType!=-1) {
                waspType=4;
                return;
            } else if (nTr2>1) {
                waspType=5;
                return;
            } else if (align2->nExons!=align1->nExons) {
                waspType=6;
                return;
            } else {
                for (uint ii=0; ii<align1->nExons; ii++) {
                    for (uint jj=0; jj<=2; jj++) {
                        if (align1->exons[ii][jj]!=align2->exons[ii][jj]) {
                            waspType=6;
                            return;//this combination maps to a different place, return with waspType 0 (set above)
                        };
                    };
                };
            };
    };
    waspType=1; //all combinations resulted in the same alignment
    return;
};

void ReadAlign::copyRead(ReadAlign &r) {//copy read information only
    Lread=r.Lread;
    readLength[0]=r.readLength[0];readLength[1]=r.readLength[1];
    readLengthOriginal[0]=r.readLengthOriginal[0];readLengthOriginal[1]=r.readLengthOriginal[1];
    readLengthPairOriginal=r.readLengthPairOriginal;
    outFilterMismatchNmaxTotal=r.outFilterMismatchNmaxTotal;
    readName=r.readName;
    iReadAll=r.iReadAll;
    readFilter=r.readFilter;
    readFilesIndex=r.readFilesIndex;
    
    for (uint ii=0;ii<=2;ii++)
        memcpy(Read1[ii],r.Read1[ii],Lread);//need to copy since it will be changed
};