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//
// Copyright (C) 2004-2006 Greg Landrum and other RDKit contributors
//
// @@ All Rights Reserved @@
// This file is part of the RDKit.
// The contents are covered by the terms of the BSD license
// which is included in the file license.txt, found at the root
// of the RDKit source tree.
//
#include <RDGeneral/export.h>
#ifndef RD_BOUNDS_MATRIX_H
#define RD_BOUNDS_MATRIX_H
#include <RDGeneral/Invariant.h>
#include <boost/smart_ptr.hpp>
#include <iostream>
#include <iomanip>
#include <Numerics/SquareMatrix.h>
namespace DistGeom {
//! Class to store the distance bound
/*!
Basically a N by N matrix
with lower distance bounds on the lower traingle and upper bounds in the upper
triangle
*/
class RDKIT_DISTGEOMETRY_EXPORT BoundsMatrix
: public RDNumeric::SquareMatrix<double> {
public:
typedef boost::shared_array<double> DATA_SPTR;
explicit BoundsMatrix(unsigned int N)
: RDNumeric::SquareMatrix<double>(N, 0.0) {}
BoundsMatrix(unsigned int N, DATA_SPTR data)
: RDNumeric::SquareMatrix<double>(N, data) {}
//! Get the upper bound between points i and j
inline double getUpperBound(unsigned int i, unsigned int j) const {
if (i < j) {
return getVal(i, j);
} else {
return getVal(j, i);
}
}
//! Set the lower bound between points i and j
inline void setUpperBound(unsigned int i, unsigned int j, double val) {
CHECK_INVARIANT(val >= 0.0, "Negative upper bound");
if (i < j) {
setVal(i, j, val);
} else {
setVal(j, i, val);
}
}
//! Set the upper bound between points i and j only if it is better than
//! previously existing value (i.e. the new value is smaller)
inline void setUpperBoundIfBetter(unsigned int i, unsigned int j,
double val) {
if ((val < getUpperBound(i, j)) && (val > getLowerBound(i, j))) {
setUpperBound(i, j, val);
}
}
//! Set the lower bound between points i and j
inline void setLowerBound(unsigned int i, unsigned int j, double val) {
CHECK_INVARIANT(val >= 0.0, "Negative lower bound");
if (i < j) {
setVal(j, i, val);
} else {
setVal(i, j, val);
}
}
//! Set the lower bound between points i and j only if it is better than
//! previously existing value (i.e. the new value is larger)
inline void setLowerBoundIfBetter(unsigned int i, unsigned int j,
double val) {
if ((val > getLowerBound(i, j)) && (val < getUpperBound(i, j))) {
setLowerBound(i, j, val);
}
}
//! Get the lower bound between points i and j
inline double getLowerBound(unsigned int i, unsigned int j) const {
if (i < j) {
return getVal(j, i);
} else {
return getVal(i, j);
}
}
//! Do a simple check of the current bounds - i.e. all lower bounds are
//! smaller than the existing upper bounds
inline bool checkValid() const {
unsigned int i, j;
for (i = 1; i < d_nRows; i++) {
for (j = 0; j < i; j++) {
if (getUpperBound(i, j) < getLowerBound(i, j)) {
return false;
}
}
}
return true;
}
};
typedef boost::shared_ptr<BoundsMatrix> BoundsMatPtr;
} // namespace DistGeom
#endif
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