mirror of https://github.com/CGAL/cgal
71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
// Implementation: Testprogram for 2-dimensional Segment Trees
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// A two dimensional Segment Tree is defined in this class.
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// Ti is the type of each dimension of the tree.
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#include <CGAL/Segment_tree_k.h>
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#include "include/Tree_Traits.h"
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#include <iostream>
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#include <vector>
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#include <iterator>
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#include <list>
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typedef CGAL::Segment_tree_2<CGAL::Tree_traits_2> Segment_tree_2_type;
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int main()
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{
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typedef CGAL::Tree_traits_2::Interval Interval;
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typedef CGAL::Tree_traits_2::Key Key;
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// definition of the two-dimensional segment tree
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std::list<Interval> InputList, OutputList, N;
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// insertion of the tree elements into the sequence container
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// InputList.push_back(Interval(Key(64, 139), Key(81.3, 921.3)));
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// InputList.push_back(Interval(Key(465, 504), Key(499.3, 829.0)));
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// InputList.push_back(Interval(Key(288, 875), Key(379.5, 982.7)));
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// InputList.push_back(Interval(Key(314, 465), Key(375.1, 711.5)));
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InputList.push_back(Interval(Key(64, 139), Key(81, 921.3)));
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InputList.push_back(Interval(Key(465, 504), Key(499, 829.0)));
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InputList.push_back(Interval(Key(288, 875), Key(379, 982.7)));
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InputList.push_back(Interval(Key(314, 465), Key(375, 711.5)));
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// creation of the segment tree
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std::list<Interval>::iterator first = InputList.begin();
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std::list<Interval>::iterator last = InputList.end();
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Segment_tree_2_type Segment_tree_2(first,last);
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// perform a window query
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// Interval a(Key(45, 500), Key(200.0, 675.1));
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Interval a(Key(45, 500), Key(200, 675.1));
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Segment_tree_2.window_query(a,std::back_inserter(OutputList));
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// output of the querey elements on stdout
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std::list<Interval>::iterator j = OutputList.begin();
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std::cerr << "\n window_query (45, 500), (200.0, 675.1)\n";
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while(j!=OutputList.end())
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{
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std::cerr << (*j).first.first << "-" << (*j).second.first << " "
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<< (*j).first.second << "-" << (*j).second.second << std::endl;
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j++;
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}
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// Interval b(Key(320, 900),Key(330.1,910.7));
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Interval b(Key(320, 900),Key(330,910.7));
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Segment_tree_2.enclosing_query(b,std::back_inserter(N));
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j = N.begin();
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std::cerr << "\n enclosing_query (320, 900),(330.1,910.7)\n";
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while(j!=N.end())
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{
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std::cerr << (*j).first.first << "-" << (*j).second.first << " "
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<< (*j).first.second << "-" << (*j).second.second << std::endl;
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j++;
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}
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if(Segment_tree_2.segment_tree_2->is_valid())
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std::cerr << "Tree is valid\n";
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else
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std::cerr << "Tree is not valid\n";
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return 0;
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}
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