opencv fillPoly

opencv   fillPoly

void fillPoly( InputOutputArray _img, const Point** pts, const int* npts, int ncontours,
               const Scalar& color, int line_type,
               int shift, Point offset )
{
    CV_INSTRUMENT_REGION();

    Mat img = _img.getMat();

    if( line_type == CV_AA && img.depth() != CV_8U )
        line_type = 8;

    CV_Assert( pts && npts && ncontours >= 0 && 0 <= shift && shift <= XY_SHIFT );

    double buf[4];
    scalarToRawData(color, buf, img.type(), 0);

    std::vector<PolyEdge> edges;

    int i, total = 0;
    for( i = 0; i < ncontours; i++ )
        total += npts[i];

    edges.reserve( total + 1 );
    for (i = 0; i < ncontours; i++)
    {
        std::vector<Point2l> _pts(pts[i], pts[i] + npts[i]);
        CollectPolyEdges(img, _pts.data(), npts[i], edges, buf, line_type, shift, offset);
    }

    FillEdgeCollection(img, edges, buf);
}

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