Revision 787a9f0ab8028893a02962f922b52950596d8e6e authored by Collin J. Sutton on 26 February 2014, 09:22:45 UTC, committed by Tom Quinn on 02 September 2016, 22:13:39 UTC
Change-Id: I5e822b85c09dd478d06fb64253576c0230fb70bd
1 parent 7d0fc8e
TreeNode.h
/** @file TreeNode.h
This header defines the structures used to make up trees.
@author Graeme Lufkin (gwl@u.washington.edu)
@date 01 Aug 2005 - Deleted the class SFCTreeNode in favor of GenericTreeNode, Filippo
*/
#ifndef TREENODE_H
#define TREENODE_H
#include <sstream>
#include "SFC.h"
namespace TreeStuff {
using namespace SFC;
inline std::string keyBits(const Key k, const int numBits) {
std::ostringstream oss;
//oss << "N";
bool ready = false;
for(int i = 0; i < numBits; i++) {
Key k2 = k & (static_cast<Key>(1) << (62 - i));
if (ready) oss << (k2 ? 1 : 0);
else if (k2 != 0) ready = true;
}
return oss.str();
}
// This converts a "radius to the furthest particle" to the standard
// Barnes-Hut cell size. We use it to keep the definition of theta
// consistent.
const double opening_geometry_factor = 2 / sqrt(3.0);
/// The maximum number of particles in a bucket.
extern int maxBucketSize;
} //close namespace TreeStuff
#endif //TREENODE_H
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