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0b2d4d4879
Recommendation is to avoid using the year nomenclature as this information is already encoded in the git repo. Avoids needing to repeatly update. Also updates AUTHORS.txt from current repo with contributor names
127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright The KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef PCBNEW_CONNECTIVITY_RTREE_H_
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#define PCBNEW_CONNECTIVITY_RTREE_H_
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#include <math/box2.h>
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#include <router/pns_layerset.h>
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#include <geometry/rtree.h>
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/**
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* CN_RTREE -
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* Implements an R-tree for fast spatial indexing of connectivity items.
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* Non-owning.
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*/
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template< class T >
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class CN_RTREE
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{
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public:
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CN_RTREE()
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{
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this->m_tree = new RTree<T, int, 3, double>();
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}
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~CN_RTREE()
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{
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delete this->m_tree;
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}
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/**
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* Function Insert()
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* Inserts an item into the tree. Item's bounding box is taken via its BBox() method.
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*/
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void Insert( T aItem )
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{
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const BOX2I& bbox = aItem->BBox();
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const int mmin[3] = { aItem->StartLayer(), bbox.GetX(), bbox.GetY() };
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const int mmax[3] = { aItem->EndLayer(), bbox.GetRight(), bbox.GetBottom() };
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m_tree->Insert( mmin, mmax, aItem );
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}
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/**
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* Function Remove()
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* Removes an item from the tree. Removal is done by comparing pointers, attempting
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* to remove a copy of the item will fail.
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*/
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void Remove( T aItem )
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{
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// First, attempt to remove the item using its given BBox
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const BOX2I& bbox = aItem->BBox();
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const int mmin[3] = { aItem->StartLayer(), bbox.GetX(), bbox.GetY() };
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const int mmax[3] = { aItem->EndLayer(), bbox.GetRight(), bbox.GetBottom() };
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// If we are not successful ( 1 == not found ), then we expand
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// the search to the full tree
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if( m_tree->Remove( mmin, mmax, aItem ) )
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{
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// N.B. We must search the whole tree for the pointer to remove
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// because the item may have been moved before we have the chance to
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// delete it from the tree
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const int mmin2[3] = { INT_MIN, INT_MIN, INT_MIN };
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const int mmax2[3] = { INT_MAX, INT_MAX, INT_MAX };
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m_tree->Remove( mmin2, mmax2, aItem );
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}
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}
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/**
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* Function RemoveAll()
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* Removes all items from the RTree
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*/
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void RemoveAll( )
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{
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m_tree->RemoveAll();
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}
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/**
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* Function Query()
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* Executes a function object aVisitor for each item whose bounding box intersects
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* with aBounds.
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*/
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template <class Visitor>
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void Query( const BOX2I& aBounds, int aStartLayer, int aEndLayer, Visitor& aVisitor ) const
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{
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int start_layer = aStartLayer == B_Cu ? INT_MAX : aStartLayer;
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int end_layer = aEndLayer == B_Cu ? INT_MAX : aEndLayer;
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const int mmin[3] = { start_layer, aBounds.GetX(), aBounds.GetY() };
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const int mmax[3] = { end_layer, aBounds.GetRight(), aBounds.GetBottom() };
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m_tree->Search( mmin, mmax, aVisitor );
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}
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private:
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RTree<T, int, 3, double>* m_tree;
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};
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#endif /* PCBNEW_CONNECTIVITY_RTREE_H_ */
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