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grids.c
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/*************************************************************************************************************
The MIT License
Copyright (C) 2006-2019 David Dubbeldam, Sofia Calero, Thijs Vlugt, Donald E. Ellis, and Randall Q. Snurr.
D.Dubbeldam@uva.nl http://www.uva.nl/profiel/d/u/d.dubbeldam/d.dubbeldam.html
scaldia@upo.es http://www.upo.es/raspa/
t.j.h.vlugt@tudelft.nl http://homepage.tudelft.nl/v9k6y
don-ellis@northwestern.edu http://dvworld.northwestern.edu/
snurr@northwestern.edu http://zeolites.cqe.northwestern.edu/
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
**************************************************************************************************************/
#include <stdlib.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <sys/stat.h>
#include "potentials.h"
#include "molecule.h"
#include "framework.h"
#include "framework_energy.h"
#include "framework_force.h"
#include "framework_hessian.h"
#include "simulation.h"
#include "integration.h"
#include "cbmc.h"
#include "ewald.h"
#include "utils.h"
#include "grids.h"
#include "output.h"
#include "grids.h"
#include "movies.h"
#include "warnings.h"
// For a framework that is kept rigid it is effecient to precompute the energy and forces.
// The amount of points is compute from
// (a) option 'SpacingVDWGrid 0.15' for Van der Waal grids
// (b) option 'SpacingCoulombGrid 0.15' for the electrostatic grid
// 0.15 Angstrom per point seems to be a good value
// the sizes of the grids can be large, so due to memory-restrictions the amount and type of pseudo-atoms to
// be precomputed needs to chosen with care.
// for 2D bicubic interpolation, see Numerical Recipes 3.6 Interpolation in more dimensions
// the code here is the extension to 3D using the transformation matrix of Lekien and Marsden
// F. Lakien and J. Marsden, "Tricubic interpolation in three dimensions"
// International Journal for Numerical Methods in Engineering, 63, 455-471, 2005
//
// The algorithme is a local tricubic interpolation scheme in three dimensions that is both C^1 and isotropic. It uses
// a 64x64 matrix that gives the relationship between the derivatives at the corners of the elements and the coefficients of
// the trcubic interpolant for this element.
// The problem is *not* separated into 3 three-dimensional problems. This allows for a much easier and accurate computation of
// higher derivatives, e.g. the force, of the extrapolated field.
//
// Grids for triclinic frameowrks are based on a enclosing rectangular box. The tricubic interpolation algorithm operates
// on a unit cube. Notice that the derivatives are given in terms of the unit cube and must be divided by the actual size
// of the elements.
static int Coeff[64][64] = {
{ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ -3, 3, 0, 0, 0, 0, 0, 0, -2, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 2, -2, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-2, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ -3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, -3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-2, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 9, -9, -9, 9, 0, 0, 0, 0, 6, 3, -6, -3, 0, 0, 0, 0, 6, -6, 3, -3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4, 2, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ -6, 6, 6, -6, 0, 0, 0, 0, -3, -3, 3, 3, 0, 0, 0, 0, -4, 4, -2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-2, -2, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 2, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ -6, 6, 6, -6, 0, 0, 0, 0, -4, -2, 4, 2, 0, 0, 0, 0, -3, 3, -3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-2, -1, -2, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 4, -4, -4, 4, 0, 0, 0, 0, 2, 2, -2, -2, 0, 0, 0, 0, 2, -2, 2, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 3, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, -2, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, -2, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 3, 0, 0, 0, 0, 0, 0, -2, -1, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, -2, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 0, 3, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, -3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, -1, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, -9, -9, 9, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 6, 3, -6, -3, 0, 0, 0, 0, 6, -6, 3, -3, 0, 0, 0, 0, 4, 2, 2, 1, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -6, 6, 6, -6, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, -3, -3, 3, 3, 0, 0, 0, 0, -4, 4, -2, 2, 0, 0, 0, 0, -2, -2, -1, -1, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, -2, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 2, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -6, 6, 6, -6, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, -4, -2, 4, 2, 0, 0, 0, 0, -3, 3, -3, 3, 0, 0, 0, 0, -2, -1, -2, -1, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, -4, -4, 4, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 2, 2, -2, -2, 0, 0, 0, 0, 2, -2, 2, -2, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0},
{ -3, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, 0, 0, -1, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, -3, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, -2, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 9, -9, 0, 0, -9, 9, 0, 0, 6, 3, 0, 0, -6, -3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, -6, 0, 0, 3, -3, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 4, 2, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ -6, 6, 0, 0, 6, -6, 0, 0, -3, -3, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -4, 4, 0, 0, -2, 2, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, -2, -2, 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-3, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, 0, 0, -1, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, -9, 0, 0, -9, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6, 3, 0, 0, -6, -3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, -6, 0, 0, 3, -3, 0, 0, 4, 2, 0, 0, 2, 1, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -6, 6, 0, 0, 6, -6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-3, -3, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -4, 4, 0, 0, -2, 2, 0, 0, -2, -2, 0, 0, -1, -1, 0, 0},
{ 9, 0, -9, 0, -9, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 3, 0, -6, 0, -3, 0, 6, 0, -6, 0, 3, 0, -3, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 2, 0, 2, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, -9, 0, -9, 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6, 0, 3, 0, -6, 0, -3, 0, 6, 0, -6, 0, 3, 0, -3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 2, 0, 2, 0, 1, 0},
{-27, 27, 27,-27, 27,-27,-27, 27,-18, -9, 18, 9, 18, 9,-18, -9,-18, 18, -9, 9, 18,-18, 9, -9,-18, 18, 18,-18, -9, 9, 9, -9,
-12, -6, -6, -3, 12, 6, 6, 3,-12, -6, 12, 6, -6, -3, 6, 3,-12, 12, -6, 6, -6, 6, -3, 3, -8, -4, -4, -2, -4, -2, -2, -1},
{ 18,-18,-18, 18,-18, 18, 18,-18, 9, 9, -9, -9, -9, -9, 9, 9, 12,-12, 6, -6,-12, 12, -6, 6, 12,-12,-12, 12, 6, -6, -6, 6,
6, 6 , 3, 3, -6, -6, -3, -3, 6, 6, -6, -6, 3, 3, -3, -3, 8, -8, 4, -4, 4, -4, 2, -2, 4, 4, 2, 2, 2, 2, 1, 1},
{ -6, 0, 6, 0, 6, 0, -6, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 0, -3, 0, 3, 0, 3, 0, -4, 0, 4, 0, -2, 0, 2, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, -2, 0, -1, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, -6, 0, 6, 0, 6, 0, -6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-3, 0, -3, 0, 3, 0, 3, 0, -4, 0, 4, 0, -2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, -2, 0, -1, 0, -1, 0},
{ 18,-18,-18, 18,-18, 18, 18,-18, 12, 6,-12, -6,-12, -6, 12, 6, 9, -9, 9, -9, -9, 9, -9, 9, 12,-12,-12, 12, 6, -6, -6, 6,
6, 3, 6, 3, -6, -3, -6, -3, 8, 4, -8, -4, 4, 2, -4, -2, 6, -6, 6, -6, 3, -3, 3, -3, 4, 2, 4, 2, 2, 1, 2, 1},
{-12, 12, 12,-12, 12,-12,-12, 12, -6, -6, 6, 6, 6, 6, -6, -6, -6, 6, -6, 6, 6, -6, 6, -6, -8, 8, 8, -8, -4, 4, 4, -4,
-3, -3, -3, -3, 3, 3, 3, 3, -4, -4, 4, 4, -2, -2, 2, 2, -4, 4, -4, 4, -2, 2, -2, 2, -2, -2, -2, -2, -1, -1, -1, -1},
{ 2, 0, 0, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ -6, 6, 0, 0, 6, -6, 0, 0, -4, -2, 0, 0, 4, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 3, 0, 0, -3, 3, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, -2, -1, 0, 0, -2, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 4, -4, 0, 0, -4, 4, 0, 0, 2, 2, 0, 0, -2, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, -2, 0, 0, 2, -2, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2, 0, 0, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -6, 6, 0, 0, 6, -6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-4, -2, 0, 0, 4, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 3, 0, 0, -3, 3, 0, 0, -2, -1, 0, 0, -2, -1, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, -4, 0, 0, -4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2, 2, 0, 0, -2, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, -2, 0, 0, 2, -2, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0},
{ -6, 0, 6, 0, 6, 0, -6, 0, 0, 0, 0, 0, 0, 0, 0, 0, -4, 0, -2, 0, 4, 0, 2, 0, -3, 0, 3, 0, -3, 0, 3, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, -1, 0, -2, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, -6, 0, 6, 0, 6, 0, -6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-4, 0, -2, 0, 4, 0, 2, 0, -3, 0, 3, 0, -3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, -1, 0, -2, 0, -1, 0},
{ 18,-18,-18, 18,-18, 18, 18,-18, 12, 6,-12, -6,-12, -6, 12, 6, 12,-12, 6, -6,-12, 12, -6, 6, 9, -9, -9, 9, 9, -9, -9, 9,
8, 4, 4, 2, -8, -4, -4, -2, 6, 3, -6, -3, 6, 3, -6, -3, 6, -6, 3, -3, 6, -6, 3, -3, 4, 2, 2, 1, 4, 2, 2, 1},
{-12, 12, 12,-12, 12,-12,-12, 12, -6, -6, 6, 6, 6, 6, -6, -6, -8, 8, -4, 4, 8, -8, 4, -4, -6, 6, 6, -6, -6, 6, 6, -6,
-4, -4, -2, -2 , 4, 4, 2, 2, -3, -3, 3, 3, -3, -3, 3 , 3, -4, 4, -2, 2, -4, 4, -2, 2, -2, -2, -1, -1, -2, -2, -1, -1},
{ 4, 0, -4, 0, -4, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, -2, 0, -2, 0, 2, 0, -2, 0, 2, 0, -2, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, -4, 0, -4, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2, 0, 2, 0, -2, 0, -2, 0, 2, 0, -2, 0, 2, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0},
{-12, 12, 12,-12, 12,-12,-12, 12, -8, -4, 8, 4, 8, 4, -8, -4, -6, 6, -6, 6, 6, -6, 6, -6, -6, 6, 6, -6, -6, 6, 6, -6,
-4, -2, -4, -2, 4, 2, 4, 2, -4, -2, 4, 2, -4, -2, 4, 2, -3, 3, -3, 3, -3, 3, -3, 3, -2, -1, -2, -1, -2, -1, -2, -1},
{ 8, -8, -8, 8, -8, 8, 8, -8, 4, 4, -4, -4, -4, -4, 4, 4, 4, -4, 4, -4, -4, 4, -4, 4, 4, -4, -4, 4, 4, -4, -4, 4,
2, 2, 2, 2, -2, -2, -2, -2, 2, 2, -2, -2, 2, 2, -2, -2, 2, -2, 2, -2, 2, -2, 2, -2, 1, 1, 1, 1, 1, 1, 1, 1}};
extern bool STREAM;
int UseTabularGrid;
REAL SpacingVDWGrid;
REAL SpacingCoulombGrid;
int NumberOfGrids;
float *****VDWGrid;
float ****CoulombGrid;
INT_VECTOR3 NumberOfVDWGridPoints;
static INT_VECTOR3 NumberOfCoulombGridPoints;
static VECTOR SizeGrid;
static VECTOR ShiftGrid;
static VECTOR DeltaVDWGrid;
static VECTOR DeltaCoulombGrid;
int *GridTypeList;
char (*GridTypeListName)[256];
// Blocking variables
static char ***BlockingGrid;
int BlockEnergyGrids;
int BlockGridPockets;
int BlockGridPores;
REAL BlockEnergyGridOverlapCriteria;
int NumberOfGridSeeds;
VECTOR *GridSeeds;
static INT_VECTOR3 *Queue;
static int QueueSize;
VECTOR MapToUnitCell(VECTOR pos)
{
VECTOR s;
switch(BoundaryCondition[CurrentSystem])
{
case RECTANGULAR:
pos.x-=UnitCellSize[CurrentSystem].x*(REAL)(NINT(pos.x/UnitCellSize[CurrentSystem].x));
pos.y-=UnitCellSize[CurrentSystem].y*(REAL)(NINT(pos.y/UnitCellSize[CurrentSystem].y));
pos.z-=UnitCellSize[CurrentSystem].z*((REAL)NINT(pos.z/UnitCellSize[CurrentSystem].z));
if(pos.x<0.0) pos.x+=UnitCellSize[CurrentSystem].x;
if(pos.y<0.0) pos.y+=UnitCellSize[CurrentSystem].y;
if(pos.z<0.0) pos.z+=UnitCellSize[CurrentSystem].z;
break;
case TRICLINIC:
s.x=InverseUnitCellBox[CurrentSystem].ax*pos.x+InverseUnitCellBox[CurrentSystem].bx*pos.y+InverseUnitCellBox[CurrentSystem].cx*pos.z;
s.y=InverseUnitCellBox[CurrentSystem].ay*pos.x+InverseUnitCellBox[CurrentSystem].by*pos.y+InverseUnitCellBox[CurrentSystem].cy*pos.z;
s.z=InverseUnitCellBox[CurrentSystem].az*pos.x+InverseUnitCellBox[CurrentSystem].bz*pos.y+InverseUnitCellBox[CurrentSystem].cz*pos.z;
// apply boundary condition
s.x-=(REAL)NINT(s.x);
s.y-=(REAL)NINT(s.y);
s.z-=(REAL)NINT(s.z);
if(s.x<0.0) s.x+=1.0;
if(s.y<0.0) s.y+=1.0;
if(s.z<0.0) s.z+=1.0;
pos.x=UnitCellBox[CurrentSystem].ax*s.x+UnitCellBox[CurrentSystem].bx*s.y+UnitCellBox[CurrentSystem].cx*s.z;
pos.y=UnitCellBox[CurrentSystem].ay*s.x+UnitCellBox[CurrentSystem].by*s.y+UnitCellBox[CurrentSystem].cy*s.z;
pos.z=UnitCellBox[CurrentSystem].az*s.x+UnitCellBox[CurrentSystem].bz*s.y+UnitCellBox[CurrentSystem].cz*s.z;
break;
}
return pos;
}
int CheckIfPointIsInUnitCell(VECTOR pos)
{
VECTOR s;
s.x=InverseUnitCellBox[CurrentSystem].ax*pos.x+InverseUnitCellBox[CurrentSystem].bx*pos.y+InverseUnitCellBox[CurrentSystem].cx*pos.z;
s.y=InverseUnitCellBox[CurrentSystem].ay*pos.x+InverseUnitCellBox[CurrentSystem].by*pos.y+InverseUnitCellBox[CurrentSystem].cy*pos.z;
s.z=InverseUnitCellBox[CurrentSystem].az*pos.x+InverseUnitCellBox[CurrentSystem].bz*pos.y+InverseUnitCellBox[CurrentSystem].cz*pos.z;
if(s.x<0.0) return FALSE;
if(s.y<0.0) return FALSE;
if(s.z<0.0) return FALSE;
if(s.x>=1.0) return FALSE;
if(s.y>=1.0) return FALSE;
if(s.z>=1.0) return FALSE;
return TRUE;
}
VECTOR MapZToBox(VECTOR pos)
{
pos.z-=Box[0].cz*NINT(pos.z/Box[0].cz);
if(pos.z<0.0) pos.z+=Box[0].cz;
return pos;
}
void MakeASCIGrid(void)
{
int i,j,k,l,typeA,save;
REAL percent,teller,TailEnergy;
POINT pos;
REAL value,third_derivative;
VECTOR first_derivative;
REAL_MATRIX3x3 second_derivative;
char buffer[1024];
FILE *FilePtr;
if (STREAM)
{
fprintf(stderr, "Streaming not yet supported for this function.");
exit(0);
}
CurrentSystem=0;
if(MIN3(BoxProperties[CurrentSystem].cx,BoxProperties[CurrentSystem].cy,
BoxProperties[CurrentSystem].cz)<CutOffVDW)
{
fprintf(stderr, "ERROR: Cutoff smaller than half of one of the perpendicular boxlengths !!!\n");
fprintf(stderr, " (Cutoff: %lf perpendicular boxlengths: %lf %lf %lf)\n",(double)CutOffVDW,
(double)BoxProperties[CurrentSystem].cx,(double)BoxProperties[CurrentSystem].cy,(double)BoxProperties[CurrentSystem].cz);
fprintf(stderr, "Advice: choose more unitcells for constructing the grid.\n");
exit(0);
}
NumberOfAdsorbateMolecules[CurrentSystem]=0;
NumberOfCationMolecules[CurrentSystem]=0;
CalculateForce();
TailEnergy=UTailCorrection[CurrentSystem];
save=ChargeMethod;
ChargeMethod=NONE;
// compute the size of the grid and the shift of the origin of the enclosing box
SizeGrid.x=SizeGrid.y=SizeGrid.z=0.0;
ShiftGrid.x=ShiftGrid.y=ShiftGrid.z=0.0;
SizeGrid.x+=fabs(UnitCellBox[CurrentSystem].ax);
SizeGrid.y+=fabs(UnitCellBox[CurrentSystem].ay);
SizeGrid.z+=fabs(UnitCellBox[CurrentSystem].az);
if(UnitCellBox[CurrentSystem].ax<0.0) ShiftGrid.x+=UnitCellBox[CurrentSystem].ax;
if(UnitCellBox[CurrentSystem].ay<0.0) ShiftGrid.y+=UnitCellBox[CurrentSystem].ay;
if(UnitCellBox[CurrentSystem].az<0.0) ShiftGrid.z+=UnitCellBox[CurrentSystem].az;
SizeGrid.x+=fabs(UnitCellBox[CurrentSystem].bx);
SizeGrid.y+=fabs(UnitCellBox[CurrentSystem].by);
SizeGrid.z+=fabs(UnitCellBox[CurrentSystem].bz);
if(UnitCellBox[CurrentSystem].bx<0.0) ShiftGrid.x+=UnitCellBox[CurrentSystem].bx;
if(UnitCellBox[CurrentSystem].by<0.0) ShiftGrid.y+=UnitCellBox[CurrentSystem].by;
if(UnitCellBox[CurrentSystem].bz<0.0) ShiftGrid.z+=UnitCellBox[CurrentSystem].bz;
SizeGrid.x+=fabs(UnitCellBox[CurrentSystem].cx);
SizeGrid.y+=fabs(UnitCellBox[CurrentSystem].cy);
SizeGrid.z+=fabs(UnitCellBox[CurrentSystem].cz);
if(UnitCellBox[CurrentSystem].cx<0.0) ShiftGrid.x+=UnitCellBox[CurrentSystem].cx;
if(UnitCellBox[CurrentSystem].cy<0.0) ShiftGrid.y+=UnitCellBox[CurrentSystem].cy;
if(UnitCellBox[CurrentSystem].cz<0.0) ShiftGrid.z+=UnitCellBox[CurrentSystem].cz;
// compute the number of grid points
NumberOfVDWGridPoints.x=(int)(SizeGrid.x/SpacingVDWGrid);
NumberOfVDWGridPoints.y=(int)(SizeGrid.y/SpacingVDWGrid);
NumberOfVDWGridPoints.z=(int)(SizeGrid.z/SpacingVDWGrid);
DeltaVDWGrid.x=SizeGrid.x/(REAL)NumberOfVDWGridPoints.x;
DeltaVDWGrid.y=SizeGrid.y/(REAL)NumberOfVDWGridPoints.y;
DeltaVDWGrid.z=SizeGrid.z/(REAL)NumberOfVDWGridPoints.z;
fprintf(stderr, "ShiftGrid: %g %g %g\n",ShiftGrid.x,ShiftGrid.y,ShiftGrid.z);
fprintf(stderr, "SizeGrid: %g %g %g\n",SizeGrid.x,SizeGrid.y,SizeGrid.z);
fprintf(stderr, "Number of grid points: %d %d %d\n",NumberOfVDWGridPoints.x,NumberOfVDWGridPoints.y,NumberOfVDWGridPoints.z);
percent=100.0/(REAL)((NumberOfVDWGridPoints.x+1)*NumberOfGrids);
teller=0.0;
fprintf(OutputFilePtr[CurrentSystem],"\n\n");
fprintf(OutputFilePtr[CurrentSystem],"Generating an ASCI interpolation grid (%d x %d x %d)\n",NumberOfVDWGridPoints.x,NumberOfVDWGridPoints.y,NumberOfVDWGridPoints.z);
fprintf(OutputFilePtr[CurrentSystem],"========================================================\n\n");
fflush(OutputFilePtr[CurrentSystem]);
mkdir("ASCI_Grids",S_IRWXU);
for(l=0;l<NumberOfGrids;l++)
{
fprintf(OutputFilePtr[CurrentSystem],"Creating grid %d [%s]\n",l,PseudoAtoms[GridTypeList[l]].Name);
fflush(OutputFilePtr[CurrentSystem]);
sprintf(buffer,"ASCI_Grids/asci_grid_%s.grid",PseudoAtoms[GridTypeList[l]].Name);
FilePtr=fopen(buffer,"w");
typeA=GridTypeList[l];
for(i=0;i<=NumberOfVDWGridPoints.x;i++)
{
teller=teller+1.0;
for(j=0;j<=NumberOfVDWGridPoints.y;j++)
{
for(k=0;k<=NumberOfVDWGridPoints.z;k++)
{
switch(BoundaryCondition[CurrentSystem])
{
case RECTANGULAR:
case TRICLINIC:
default:
pos.x=i*SizeGrid.x/NumberOfVDWGridPoints.x+ShiftGrid.x;
pos.y=j*SizeGrid.y/NumberOfVDWGridPoints.y+ShiftGrid.y;
pos.z=k*SizeGrid.z/NumberOfVDWGridPoints.z+ShiftGrid.z;
// apply boundary condition
//value=CalculateFrameworkVDWEnergyAtPosition(pos,typeA);
CalculateDerivativesAtPositionVDW(pos,typeA,&value,&first_derivative,&second_derivative,&third_derivative);
break;
}
// cap the value
if(value<EnergyOverlapCriteria)
fprintf(FilePtr,"%g %g %g %g %g %g %g\n",pos.x,pos.y,pos.z,value*ENERGY_TO_KELVIN,
-first_derivative.x*ENERGY_TO_KELVIN,-first_derivative.y*ENERGY_TO_KELVIN,-first_derivative.z*ENERGY_TO_KELVIN);
else
fprintf(FilePtr,"%g %g %g %s %s %s %s\n",pos.x,pos.y,pos.z,"?","?","?","?");
}
}
fprintf(OutputFilePtr[CurrentSystem],"Percentage finished : %d\n",(int)(teller*percent));
fflush(OutputFilePtr[CurrentSystem]);
}
fclose(FilePtr);
}
}
void MakeGrid(void)
{
int i,j,k,l,tel2,typeA,save;
REAL percent,teller,TailEnergy;
POINT pos;
REAL value,third_derivative;
VECTOR first_derivative;
REAL_MATRIX3x3 second_derivative;
REAL smallest_r;
if(MIN3(BoxProperties[CurrentSystem].cx,BoxProperties[CurrentSystem].cy,
BoxProperties[CurrentSystem].cz)<CutOffVDW)
{
fprintf(stderr, "ERROR: Cutoff smaller than half of one of the perpendicular boxlengths !!!\n");
fprintf(stderr, " (Cutoff: %lf perpendicular boxlengths: %lf %lf %lf)\n",(double)CutOffVDW,
(double)BoxProperties[CurrentSystem].cx,(double)BoxProperties[CurrentSystem].cy,(double)BoxProperties[CurrentSystem].cz);
fprintf(stderr, "Advice: choose more unitcells for constructing the grid.\n");
exit(0);
}
NumberOfAdsorbateMolecules[CurrentSystem]=0;
NumberOfCationMolecules[CurrentSystem]=0;
CalculateForce();
TailEnergy=UTailCorrection[CurrentSystem];
save=ChargeMethod;
ChargeMethod=NONE;
// compute the size of the grid and the shift of the origin of the enclosing box
SizeGrid.x=SizeGrid.y=SizeGrid.z=0.0;
ShiftGrid.x=ShiftGrid.y=ShiftGrid.z=0.0;
SizeGrid.x+=fabs(UnitCellBox[CurrentSystem].ax);
SizeGrid.y+=fabs(UnitCellBox[CurrentSystem].ay);
SizeGrid.z+=fabs(UnitCellBox[CurrentSystem].az);
if(UnitCellBox[CurrentSystem].ax<0.0) ShiftGrid.x+=UnitCellBox[CurrentSystem].ax;
if(UnitCellBox[CurrentSystem].ay<0.0) ShiftGrid.y+=UnitCellBox[CurrentSystem].ay;
if(UnitCellBox[CurrentSystem].az<0.0) ShiftGrid.z+=UnitCellBox[CurrentSystem].az;
SizeGrid.x+=fabs(UnitCellBox[CurrentSystem].bx);
SizeGrid.y+=fabs(UnitCellBox[CurrentSystem].by);
SizeGrid.z+=fabs(UnitCellBox[CurrentSystem].bz);
if(UnitCellBox[CurrentSystem].bx<0.0) ShiftGrid.x+=UnitCellBox[CurrentSystem].bx;
if(UnitCellBox[CurrentSystem].by<0.0) ShiftGrid.y+=UnitCellBox[CurrentSystem].by;
if(UnitCellBox[CurrentSystem].bz<0.0) ShiftGrid.z+=UnitCellBox[CurrentSystem].bz;
SizeGrid.x+=fabs(UnitCellBox[CurrentSystem].cx);
SizeGrid.y+=fabs(UnitCellBox[CurrentSystem].cy);
SizeGrid.z+=fabs(UnitCellBox[CurrentSystem].cz);
if(UnitCellBox[CurrentSystem].cx<0.0) ShiftGrid.x+=UnitCellBox[CurrentSystem].cx;
if(UnitCellBox[CurrentSystem].cy<0.0) ShiftGrid.y+=UnitCellBox[CurrentSystem].cy;
if(UnitCellBox[CurrentSystem].cz<0.0) ShiftGrid.z+=UnitCellBox[CurrentSystem].cz;
// compute the number of grid points
NumberOfVDWGridPoints.x=(int)(SizeGrid.x/SpacingVDWGrid);
NumberOfVDWGridPoints.y=(int)(SizeGrid.y/SpacingVDWGrid);
NumberOfVDWGridPoints.z=(int)(SizeGrid.z/SpacingVDWGrid);
if(NumberOfVDWGridPoints.x%2==0) NumberOfVDWGridPoints.x++;
if(NumberOfVDWGridPoints.y%2==0) NumberOfVDWGridPoints.y++;
if(NumberOfVDWGridPoints.z%2==0) NumberOfVDWGridPoints.z++;
DeltaVDWGrid.x=SizeGrid.x/(REAL)NumberOfVDWGridPoints.x;
DeltaVDWGrid.y=SizeGrid.y/(REAL)NumberOfVDWGridPoints.y;
DeltaVDWGrid.z=SizeGrid.z/(REAL)NumberOfVDWGridPoints.z;
fprintf(stderr, "ShiftGrid: %g %g %g\n",ShiftGrid.x,ShiftGrid.y,ShiftGrid.z);
fprintf(stderr, "SizeGrid: %g %g %g\n",SizeGrid.x,SizeGrid.y,SizeGrid.z);
fprintf(stderr, "Number of grid points: %d %d %d\n",NumberOfVDWGridPoints.x,NumberOfVDWGridPoints.y,NumberOfVDWGridPoints.z);
percent=100.0/(REAL)((NumberOfVDWGridPoints.x+1)*NumberOfGrids);
teller=0.0;
tel2=1;
fprintf(OutputFilePtr[CurrentSystem],"\n\n");
fprintf(OutputFilePtr[CurrentSystem],"Generating an VDW interpolation grid (%d x %d x %d)\n",NumberOfVDWGridPoints.x,NumberOfVDWGridPoints.y,NumberOfVDWGridPoints.z);
fprintf(OutputFilePtr[CurrentSystem],"========================================================\n\n");
fflush(OutputFilePtr[CurrentSystem]);
fprintf(stderr, "NumberOfGrids: %d\n",NumberOfGrids);
for(l=0;l<NumberOfGrids;l++)
{
fprintf(OutputFilePtr[CurrentSystem],"Creating grid %d [%s]\n",l,PseudoAtoms[GridTypeList[l]].Name);
fflush(OutputFilePtr[CurrentSystem]);
// Allocate the memory for this grid
VDWGrid[GridTypeList[l]]=(float****)calloc(NumberOfVDWGridPoints.x+1,sizeof(float***));
for(i=0;i<=NumberOfVDWGridPoints.x;i++)
{
VDWGrid[GridTypeList[l]][i]=(float***)calloc(NumberOfVDWGridPoints.y+1,sizeof(float**));
for(j=0;j<=NumberOfVDWGridPoints.y;j++)
{
VDWGrid[GridTypeList[l]][i][j]=(float**)calloc(NumberOfVDWGridPoints.z+1,sizeof(float*));
for(k=0;k<=NumberOfVDWGridPoints.z;k++)
VDWGrid[GridTypeList[l]][i][j][k]=(float*)calloc(8,sizeof(float));
}
}
typeA=GridTypeList[l];
for(i=0;i<=NumberOfVDWGridPoints.x;i++)
{
teller=teller+1.0;
for(j=0;j<=NumberOfVDWGridPoints.y;j++)
{
for(k=0;k<=NumberOfVDWGridPoints.z;k++)
{
switch(BoundaryCondition[CurrentSystem])
{
case RECTANGULAR:
case TRICLINIC:
default:
pos.x=i*SizeGrid.x/NumberOfVDWGridPoints.x+ShiftGrid.x;
pos.y=j*SizeGrid.y/NumberOfVDWGridPoints.y+ShiftGrid.y;
pos.z=k*SizeGrid.z/NumberOfVDWGridPoints.z+ShiftGrid.z;
// apply boundary condition
CalculateDerivativesAtPositionVDW(pos,typeA,&value,&first_derivative,&second_derivative,&third_derivative);
break;
}
// cap the value
if(value>EnergyOverlapCriteria)
{
value=2.0*EnergyOverlapCriteria;
if(first_derivative.x>EnergyOverlapCriteria) first_derivative.x=EnergyOverlapCriteria;
if(first_derivative.x<-EnergyOverlapCriteria) first_derivative.x=-EnergyOverlapCriteria;
if(first_derivative.y>EnergyOverlapCriteria) first_derivative.y=EnergyOverlapCriteria;
if(first_derivative.y<-EnergyOverlapCriteria) first_derivative.y=-EnergyOverlapCriteria;
if(first_derivative.z>EnergyOverlapCriteria) first_derivative.z=EnergyOverlapCriteria;
if(first_derivative.z<-EnergyOverlapCriteria) first_derivative.z=-EnergyOverlapCriteria;
second_derivative.ax=second_derivative.bx=second_derivative.cx=0.0;
second_derivative.ay=second_derivative.by=second_derivative.cy=0.0;
second_derivative.az=second_derivative.bz=second_derivative.cz=0.0;
third_derivative=0.0;
}
// store energy, and derivatives in "unit cube format"
VDWGrid[GridTypeList[l]][i][j][k][0]=(float)value;
VDWGrid[GridTypeList[l]][i][j][k][1]=(float)first_derivative.x*DeltaVDWGrid.x;
VDWGrid[GridTypeList[l]][i][j][k][2]=(float)first_derivative.y*DeltaVDWGrid.y;
VDWGrid[GridTypeList[l]][i][j][k][3]=(float)first_derivative.z*DeltaVDWGrid.z;
VDWGrid[GridTypeList[l]][i][j][k][4]=(float)second_derivative.ay*(DeltaVDWGrid.x*DeltaVDWGrid.y);
VDWGrid[GridTypeList[l]][i][j][k][5]=(float)second_derivative.az*(DeltaVDWGrid.x*DeltaVDWGrid.z);
VDWGrid[GridTypeList[l]][i][j][k][6]=(float)second_derivative.bz*(DeltaVDWGrid.y*DeltaVDWGrid.z);
VDWGrid[GridTypeList[l]][i][j][k][7]=(float)third_derivative*(DeltaVDWGrid.x*DeltaVDWGrid.y*DeltaVDWGrid.z);
}
}
if((int)(teller*percent)>(int)((teller-1.0)*percent))
fprintf(OutputFilePtr[CurrentSystem],"Percentage finished : %d\n",(int)(teller*percent));
fflush(OutputFilePtr[CurrentSystem]);
}
fprintf(stderr, "Writing Grid\n");
WriteVDWGrid(GridTypeList[l]);
}
// compute the number of grid points
NumberOfCoulombGridPoints.x=(int)(SizeGrid.x/SpacingCoulombGrid);
NumberOfCoulombGridPoints.y=(int)(SizeGrid.y/SpacingCoulombGrid);
NumberOfCoulombGridPoints.z=(int)(SizeGrid.z/SpacingCoulombGrid);
if(NumberOfCoulombGridPoints.x%2==0) NumberOfCoulombGridPoints.x++;
if(NumberOfCoulombGridPoints.y%2==0) NumberOfCoulombGridPoints.y++;
if(NumberOfCoulombGridPoints.z%2==0) NumberOfCoulombGridPoints.z++;
DeltaCoulombGrid.x=SizeGrid.x/(REAL)NumberOfCoulombGridPoints.x;
DeltaCoulombGrid.y=SizeGrid.y/(REAL)NumberOfCoulombGridPoints.y;
DeltaCoulombGrid.z=SizeGrid.z/(REAL)NumberOfCoulombGridPoints.z;
ChargeMethod=save;
fprintf(OutputFilePtr[CurrentSystem],"\n\n");
switch(ChargeMethod)
{
case EWALD:
fprintf(OutputFilePtr[CurrentSystem],"Generating an Ewald-Coulomb interpolation grid (%d x %d x %d)\n",
NumberOfCoulombGridPoints.x,NumberOfCoulombGridPoints.y,NumberOfCoulombGridPoints.z);
break;
case WOLFS_METHOD:
fprintf(OutputFilePtr[CurrentSystem],"Generating an Coulomb interpolation grid using Wolf's method (%d x %d x %d)\n",
NumberOfCoulombGridPoints.x,NumberOfCoulombGridPoints.y,NumberOfCoulombGridPoints.z);
break;
default:
fprintf(stderr, "Skipping the Coulombic grid\n");
exit(0);
break;
}
fprintf(OutputFilePtr[CurrentSystem],"===============================================================\n\n");
fflush(OutputFilePtr[CurrentSystem]);
percent=100.0/(REAL)(NumberOfCoulombGridPoints.x+1);
teller=0.0;
// Allocate the memory for this grid
CoulombGrid=(float****)calloc(NumberOfCoulombGridPoints.x+1,sizeof(float***));
for(i=0;i<=NumberOfCoulombGridPoints.x;i++)
{
CoulombGrid[i]=(float***)calloc(NumberOfCoulombGridPoints.y+1,sizeof(float**));
for(j=0;j<=NumberOfCoulombGridPoints.y;j++)
{
CoulombGrid[i][j]=(float**)calloc(NumberOfCoulombGridPoints.z+1,sizeof(float*));
for(k=0;k<=NumberOfCoulombGridPoints.z;k++)
CoulombGrid[i][j][k]=(float*)calloc(8,sizeof(float));
}
}
typeA=ReturnPseudoAtomNumber("UNIT");
for(i=0;i<=NumberOfCoulombGridPoints.x;i++)
{
teller=teller+1.0;
for(j=0;j<=NumberOfCoulombGridPoints.y;j++)
{
for(k=0;k<=NumberOfCoulombGridPoints.z;k++)
{
switch(BoundaryCondition[CurrentSystem])
{
case RECTANGULAR:
case TRICLINIC:
default:
pos.x=i*SizeGrid.x/NumberOfCoulombGridPoints.x+ShiftGrid.x;
pos.y=j*SizeGrid.y/NumberOfCoulombGridPoints.y+ShiftGrid.y;
pos.z=k*SizeGrid.z/NumberOfCoulombGridPoints.z+ShiftGrid.z;
smallest_r=CalculateDerivativesAtPositionReal(pos,typeA,&value,&first_derivative,&second_derivative,&third_derivative);
break;
}
// cap the value
if(value>EnergyOverlapCriteria||smallest_r<1.0)
{
value=2.0*EnergyOverlapCriteria;
if(first_derivative.x>EnergyOverlapCriteria) first_derivative.x=EnergyOverlapCriteria;
if(first_derivative.x<-EnergyOverlapCriteria) first_derivative.x=-EnergyOverlapCriteria;
if(first_derivative.y>EnergyOverlapCriteria) first_derivative.y=EnergyOverlapCriteria;
if(first_derivative.y<-EnergyOverlapCriteria) first_derivative.y=-EnergyOverlapCriteria;
if(first_derivative.z>EnergyOverlapCriteria) first_derivative.z=EnergyOverlapCriteria;
if(first_derivative.z<-EnergyOverlapCriteria) first_derivative.z=-EnergyOverlapCriteria;
second_derivative.ax=second_derivative.bx=second_derivative.cx=0.0;
second_derivative.ay=second_derivative.by=second_derivative.cy=0.0;
second_derivative.az=second_derivative.bz=second_derivative.cz=0.0;
third_derivative=0.0;
}
// store energy, and derivatives in "unit cube format"
CoulombGrid[i][j][k][0]=(float)value;
CoulombGrid[i][j][k][1]=(float)first_derivative.x*DeltaCoulombGrid.x;
CoulombGrid[i][j][k][2]=(float)first_derivative.y*DeltaCoulombGrid.y;
CoulombGrid[i][j][k][3]=(float)first_derivative.z*DeltaCoulombGrid.z;
CoulombGrid[i][j][k][4]=(float)second_derivative.ay*(DeltaCoulombGrid.x*DeltaCoulombGrid.y);
CoulombGrid[i][j][k][5]=(float)second_derivative.az*(DeltaCoulombGrid.x*DeltaCoulombGrid.z);
CoulombGrid[i][j][k][6]=(float)second_derivative.bz*(DeltaCoulombGrid.y*DeltaCoulombGrid.z);
CoulombGrid[i][j][k][7]=(float)third_derivative*(DeltaCoulombGrid.x*DeltaCoulombGrid.y*DeltaCoulombGrid.z);
}
}
if((int)(teller*percent)>(int)((teller-1.0)*percent))
fprintf(OutputFilePtr[CurrentSystem],"Percentage finished : %d\n",(int)(teller*percent));
fflush(OutputFilePtr[CurrentSystem]);
}
fprintf(stderr, "Writing Grid\n");
WriteCoulombGrid();
}
int WriteVDWGrid(int l)
{
int i,j,k,m;
int ngrid;
FILE *FilePtr;
char buffer[256];
if (STREAM)
{
fprintf(stderr, "Streaming not yet supported for this function.");
exit(0);
}
ngrid=NumberOfVDWGridPoints.x*NumberOfVDWGridPoints.y*NumberOfVDWGridPoints.z;
sprintf(buffer,"%s/share/raspa/grids",RASPA_DIRECTORY);
mkdir(buffer,S_IRWXU);
sprintf(buffer,"%s/share/raspa/grids/%s",RASPA_DIRECTORY,ForceField);
mkdir(buffer,S_IRWXU);
sprintf(buffer,"%s/share/raspa/grids/%s/%s",RASPA_DIRECTORY,ForceField,Framework[CurrentSystem].Name[0]);
mkdir(buffer,S_IRWXU);
sprintf(buffer,"%s/share/raspa/grids/%s/%s/%lf",RASPA_DIRECTORY,ForceField,
Framework[CurrentSystem].Name[0],(double)SpacingVDWGrid);
mkdir(buffer,S_IRWXU);
sprintf(buffer,"%s/share/raspa/grids/%s/%s/%lf/%s_%s_%s.grid",
RASPA_DIRECTORY,
ForceField,
Framework[CurrentSystem].Name[0],
(double)SpacingVDWGrid,
Framework[CurrentSystem].Name[0],
PseudoAtoms[l].Name,
ShiftPotentials?"shifted":"truncated");
FilePtr=fopen(buffer,"w");
fwrite(&SpacingVDWGrid,1,sizeof(REAL),FilePtr);
fwrite(&NumberOfVDWGridPoints,1,sizeof(INT_VECTOR3),FilePtr);
fwrite(&SizeGrid,1,sizeof(VECTOR),FilePtr);
fwrite(&ShiftGrid,1,sizeof(VECTOR),FilePtr);
fwrite(&DeltaVDWGrid,1,sizeof(VECTOR),FilePtr);
fwrite(&UnitCellSize[CurrentSystem],1,sizeof(VECTOR),FilePtr);
fwrite(&NumberOfUnitCells[CurrentSystem],1,sizeof(INT_VECTOR3),FilePtr);
for(m=0;m<8;m++)
for(i=0;i<=NumberOfVDWGridPoints.x;i++)
for(j=0;j<=NumberOfVDWGridPoints.y;j++)
for(k=0;k<=NumberOfVDWGridPoints.z;k++)
fwrite(&VDWGrid[l][i][j][k][m],1,sizeof(float),FilePtr);
fclose(FilePtr);
return 0;
}
void ReadVDWGrid(void)
{
int i,j,k,l,m;
VECTOR unit_cell_size;
INT_VECTOR3 number_of_unit_cells;
FILE *FilePtr;
char buffer[256];
fprintf(stderr, "Reading VDW grid\n");
for(i=0;i<NumberOfPseudoAtoms;i++)
VDWGrid[i]=NULL;
for(l=0;l<NumberOfGrids;l++)
{
sprintf(buffer,"%s/share/raspa/grids",RASPA_DIRECTORY);
sprintf(buffer,"%s/share/raspa/grids/%s/%s/%lf/%s_%s_%s.grid",
RASPA_DIRECTORY,
ForceField,
Framework[CurrentSystem].Name[0],
(double)SpacingVDWGrid,
Framework[CurrentSystem].Name[0],
PseudoAtoms[GridTypeList[l]].Name,
ShiftPotentials?"shifted":"truncated");
fprintf(stderr, "Opening: %s\n",buffer);
if(!(FilePtr=fopen(buffer,"r")))
{
fprintf(stderr, "Error: file %s does not exist.\n",buffer);
exit(1);
}
fread(&SpacingVDWGrid,1,sizeof(REAL),FilePtr);
fread(&NumberOfVDWGridPoints,1,sizeof(INT_VECTOR3),FilePtr);
fread(&SizeGrid,1,sizeof(VECTOR),FilePtr);
fread(&ShiftGrid,1,sizeof(VECTOR),FilePtr);
fread(&DeltaVDWGrid,1,sizeof(VECTOR),FilePtr);
fread(&unit_cell_size,1,sizeof(VECTOR),FilePtr);
fread(&number_of_unit_cells,1,sizeof(INT_VECTOR3),FilePtr);
if((fabs(UnitCellSize[CurrentSystem].x-unit_cell_size.x)>1e-8)||(fabs(UnitCellSize[CurrentSystem].y-unit_cell_size.y)>1e-8)||
(fabs(UnitCellSize[CurrentSystem].z-unit_cell_size.z)>1e-8))
{
fprintf(stderr, "Error in reading the grid: unit-cell size does not match\n");
exit(0);
}
// Allocate the memory for this grid
VDWGrid[GridTypeList[l]]=(float****)calloc(NumberOfVDWGridPoints.x+1,sizeof(float***));
for(i=0;i<=NumberOfVDWGridPoints.x;i++)
{
VDWGrid[GridTypeList[l]][i]=(float***)calloc(NumberOfVDWGridPoints.y+1,sizeof(float**));
for(j=0;j<=NumberOfVDWGridPoints.y;j++)
{
VDWGrid[GridTypeList[l]][i][j]=(float**)calloc(NumberOfVDWGridPoints.z+1,sizeof(float*));
for(k=0;k<=NumberOfVDWGridPoints.z;k++)
VDWGrid[GridTypeList[l]][i][j][k]=(float*)calloc(8,sizeof(float));
}
}
for(m=0;m<8;m++)
for(i=0;i<=NumberOfVDWGridPoints.x;i++)
for(j=0;j<=NumberOfVDWGridPoints.y;j++)
for(k=0;k<=NumberOfVDWGridPoints.z;k++)
fread(&VDWGrid[GridTypeList[l]][i][j][k][m],1,sizeof(float),FilePtr);
fclose(FilePtr);
}
}
int WriteCoulombGrid(void)
{
int i,j,k,m,max_size;
FILE *FilePtr;
char buffer[256],name[256];
switch(ChargeMethod)
{
case EWALD:
strcpy(name,"Ewald");
break;
case WOLFS_METHOD:
strcpy(name,"WolfsMethod");
break;
}
max_size=NumberOfCoulombGridPoints.x*NumberOfCoulombGridPoints.y*NumberOfCoulombGridPoints.z;
sprintf(buffer,"%s/share/raspa/grids",RASPA_DIRECTORY);
mkdir(buffer,S_IRWXU);
sprintf(buffer,"%s/share/raspa/grids/%s",RASPA_DIRECTORY,ForceField);
mkdir(buffer,S_IRWXU);
sprintf(buffer,"%s/share/raspa/grids/%s/%s",RASPA_DIRECTORY,ForceField,Framework[CurrentSystem].Name[0]);
mkdir(buffer,S_IRWXU);
sprintf(buffer,"%s/share/raspa/grids/%s/%s/%lf",RASPA_DIRECTORY,ForceField,
Framework[CurrentSystem].Name[0],(double)SpacingCoulombGrid);
mkdir(buffer,S_IRWXU);
sprintf(buffer,"%s/share/raspa/grids/%s/%s/%lf/%dx%dx%d",RASPA_DIRECTORY,ForceField,
Framework[CurrentSystem].Name[0],(double)SpacingCoulombGrid,
NumberOfUnitCells[CurrentSystem].x,NumberOfUnitCells[CurrentSystem].y,NumberOfUnitCells[CurrentSystem].z);
mkdir(buffer,S_IRWXU);
sprintf(buffer,"%s/share/raspa/grids/%s/%s/%lf/%dx%dx%d/%s_%s_%s.grid",
RASPA_DIRECTORY,
ForceField,
Framework[CurrentSystem].Name[0],
(double)SpacingCoulombGrid,
NumberOfUnitCells[CurrentSystem].x,NumberOfUnitCells[CurrentSystem].y,NumberOfUnitCells[CurrentSystem].z,
Framework[CurrentSystem].Name[0],
"Electrostatics",
name);
FilePtr=fopen(buffer,"w");
fwrite(&SpacingCoulombGrid,1,sizeof(REAL),FilePtr);
fwrite(&NumberOfCoulombGridPoints,1,sizeof(INT_VECTOR3),FilePtr);
fwrite(&SizeGrid,1,sizeof(VECTOR),FilePtr);
fwrite(&ShiftGrid,1,sizeof(VECTOR),FilePtr);
fwrite(&DeltaCoulombGrid,1,sizeof(VECTOR),FilePtr);
fwrite(&UnitCellSize[CurrentSystem],1,sizeof(VECTOR),FilePtr);
fwrite(&NumberOfUnitCells[CurrentSystem],1,sizeof(INT_VECTOR3),FilePtr);
fwrite(&EwaldPrecision,1,sizeof(REAL),FilePtr);
for(m=0;m<8;m++)
for(i=0;i<=NumberOfCoulombGridPoints.x;i++)
for(j=0;j<=NumberOfCoulombGridPoints.y;j++)
for(k=0;k<=NumberOfCoulombGridPoints.z;k++)
fwrite(&CoulombGrid[i][j][k][m],1,sizeof(float),FilePtr);
fclose(FilePtr);
return 0;
}
void ReadCoulombGrid(void)
{
int i,j,k,m;
INT_VECTOR3 number_of_unit_cells;
VECTOR unit_cell_size;
REAL ewald_precision;
FILE *FilePtr;
char buffer[256],name[256];
if (STREAM)
{
fprintf(stderr, "Streaming not yet supported for this function.");
exit(0);
}
switch(ChargeMethod)
{
case EWALD:
strcpy(name,"Ewald");
break;
case WOLFS_METHOD:
strcpy(name,"WolfsMethod");
break;
}
sprintf(buffer,"%s/share/raspa/grids/%s",RASPA_DIRECTORY,ForceField);
sprintf(buffer,"%s/share/raspa/grids/%s/%s/%lf/%dx%dx%d/%s_%s_%s.grid",
RASPA_DIRECTORY,
ForceField,
Framework[CurrentSystem].Name[0],
(double)SpacingCoulombGrid,
NumberOfUnitCells[CurrentSystem].x,NumberOfUnitCells[CurrentSystem].y,NumberOfUnitCells[CurrentSystem].z,
Framework[CurrentSystem].Name[0],
"Electrostatics",
name);
fprintf(stderr, "Opening: %s\n",buffer);
if(!(FilePtr=fopen(buffer,"r")))
{
fprintf(stderr, "Error: file %s does not exist.\n",buffer);
exit(0);
}
else
{
fread(&SpacingCoulombGrid,1,sizeof(REAL),FilePtr);
fread(&NumberOfCoulombGridPoints,1,sizeof(INT_VECTOR3),FilePtr);
fread(&SizeGrid,1,sizeof(VECTOR),FilePtr);
fread(&ShiftGrid,1,sizeof(VECTOR),FilePtr);
fread(&DeltaCoulombGrid,1,sizeof(VECTOR),FilePtr);
fread(&unit_cell_size,1,sizeof(VECTOR),FilePtr);
fread(&number_of_unit_cells,1,sizeof(INT_VECTOR3),FilePtr);
fread(&ewald_precision,1,sizeof(REAL),FilePtr);
if((fabs(UnitCellSize[CurrentSystem].x-unit_cell_size.x)>1e-8)||(fabs(UnitCellSize[CurrentSystem].y-unit_cell_size.y)>1e-8)||
(fabs(UnitCellSize[CurrentSystem].z-unit_cell_size.z)>1e-8))
{
fprintf(stderr, "Error in reading the grid: unit-cell size does not match\n");
exit(0);
}
if((number_of_unit_cells.x!=NumberOfUnitCells[CurrentSystem].x)||
(number_of_unit_cells.y!=NumberOfUnitCells[CurrentSystem].y)||
(number_of_unit_cells.z!=NumberOfUnitCells[CurrentSystem].z))
{
fprintf(stderr, "Mismatch of number of unitcells, defined: %d,%d,%d, grid: %d,%d,%d\n",
NumberOfUnitCells[CurrentSystem].x,NumberOfUnitCells[CurrentSystem].y,NumberOfUnitCells[CurrentSystem].z,
number_of_unit_cells.x,number_of_unit_cells.y,number_of_unit_cells.z);
exit(0);
}
if(fabs(EwaldPrecision-ewald_precision)>1e-8)
{
fprintf(stderr, "Mismatch of Ewald precision, currently: %g but the grid had been made using %g\n",
EwaldPrecision,ewald_precision);
}
// Allocate the memory for this grid
CoulombGrid=(float****)calloc(NumberOfCoulombGridPoints.x+1,sizeof(float***));
for(i=0;i<=NumberOfCoulombGridPoints.x;i++)
{
CoulombGrid[i]=(float***)calloc(NumberOfCoulombGridPoints.y+1,sizeof(float**));
for(j=0;j<=NumberOfCoulombGridPoints.y;j++)
{
CoulombGrid[i][j]=(float**)calloc(NumberOfCoulombGridPoints.z+1,sizeof(float*));
for(k=0;k<=NumberOfCoulombGridPoints.z;k++)
CoulombGrid[i][j][k]=(float*)calloc(8,sizeof(float));
}
}
for(m=0;m<8;m++)
for(i=0;i<=NumberOfCoulombGridPoints.x;i++)
for(j=0;j<=NumberOfCoulombGridPoints.y;j++)
for(k=0;k<=NumberOfCoulombGridPoints.z;k++)
fread(&CoulombGrid[i][j][k][m],1,sizeof(float),FilePtr);
fclose(FilePtr);
}
fprintf(stderr, "End Reading Coulomb Grid\n");
fprintf(stderr, "Done !!!\n");
}
REAL InterpolateVDWGrid(int typeA,VECTOR pos)
{
int i,j,k;
int x0,y0,z0,x1,y1,z1;
VECTOR s,r;
REAL value;
REAL X[64],a[64];
if(!VDWGrid[typeA])
{
fprintf(stderr, "InterpolateVDWGrid: Pseudoatom %d [%s] not tabulated.\n",typeA,PseudoAtoms[typeA].Name);
exit(0);
}
switch(BoundaryCondition[CurrentSystem])
{
case RECTANGULAR:
// the position has to be moved back to the main unit cell using the rectangular boundary condition
pos.x-=UnitCellSize[CurrentSystem].x*(REAL)(NINT(pos.x/UnitCellSize[CurrentSystem].x));
pos.y-=UnitCellSize[CurrentSystem].y*(REAL)(NINT(pos.y/UnitCellSize[CurrentSystem].y));
pos.z-=UnitCellSize[CurrentSystem].z*(REAL)(NINT(pos.z/UnitCellSize[CurrentSystem].z));
if(pos.x<0.0) pos.x+=UnitCellSize[CurrentSystem].x;