public void Build(PivotGroupIndex pgi, int num_groups)
{
this.DB = pgi.DB;
if (num_groups <= 0) {
num_groups = pgi.GROUPS.Length;
}
this.InitGROUPS (num_groups);
for (int i = 0; i < num_groups; ++i) {
this.GROUPS[i] = pgi.GROUPS[i];
}
}
public void Build(string basename, PivotGroupIndex pgi, int num_groups = 0)
{
this.DB = pgi.DB;
if (num_groups <= 0) {
num_groups = pgi.GROUPS.Length;
}
this.GROUPS = new DiskPivotGroup[num_groups];
for (int i = 0; i < num_groups; ++i) {
var g = new DiskPivotGroup();
g.Build (pgi.GROUPS[i], basename + "-" + i);
this.GROUPS[i] = g;
}
}
public void Build(PivotGroupIndex pgi, int num_groups, double approx_factor)
{
this.DB = pgi.DB;
if (num_groups <= 0) {
num_groups = pgi.GROUPS.Length;
}
this.GROUPS = new PivotGroupApprox[num_groups];
for (int i = 0; i < num_groups; ++i) {
var g = new PivotGroupApprox();
g.Build(pgi.GROUPS[i], approx_factor);
this.GROUPS[i] = g;
}
}