Method CountPointsInPolygon

DialogTools/SpatialJoinDlg.cpp:138–165

CountPointsInPolygon::CountPointsInPolygon(BackgroundMapLayer* _ml,
                                           Project* _project,
                                           std::vector<wxString> join_variable_nm,
                                           std::vector<Operation> _op)
: SpatialJoinWorker(_ml, _project)
{
    is_spatial_assign = false;
    join_operation = _op;
    int n_vars = (int)join_operation.size();
    join_values.resize(n_vars);
    join_variable = false; // default false: no need to join variables
    for (int i=0; i<join_variable_nm.size(); ++i) {
        join_variable = _ml->GetDoubleColumnData(join_variable_nm[i], join_values[i]);
    }

    num_polygons = project->GetNumRecords();

    // using selected layer (points) to create rtree
    int n = (int)ml->shapes.size();
    double x, y;
    for (int i=0; i<n; i++) {
        if (ml->shapes[i]) {
            x = ml->shapes[i]->center_o.x;
            y = ml->shapes[i]->center_o.y;
            rtree.insert(std::make_pair(pt_2d(x,y), i));
        }
    }
}

void CountPointsInPolygon::sub_run(int start, int end)
{