static void CollectEdges(Block_2& io_dst, edge_collector_t<Block_2> * collector, const Polygon_2& src, Block_locator * loc)
{
DebugAssert(src.size() >= 3);
DebugAssert(src.is_simple());
for(int n = 0; n < src.size(); ++n)
{
collector->input = Pmwx::X_monotone_curve_2(src.edge(n),0);
collector->ctr = 0;
DebugAssert(collector->input.source() != collector->input.target());
if(loc) CGAL::insert(io_dst, collector->input,*loc);
else CGAL::insert(io_dst, collector->input);
DebugAssert(collector->ctr > 0);
}
}
