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# density.h

    00001 //
    00002 // density.h
    00003 //
    00004 // Copyright (C) 1996 Limit Point Systems, Inc.
    00005 //
    00006 // Author: Curtis Janssen <cljanss@limitpt.com>
    00007 // Maintainer: LPS
    00008 //
    00009 // This file is part of the SC Toolkit.
    00010 //
    00011 // The SC Toolkit is free software; you can redistribute it and/or modify
    00012 // it under the terms of the GNU Library General Public License as published by
    00013 // the Free Software Foundation; either version 2, or (at your option)
    00014 // any later version.
    00015 //
    00016 // The SC Toolkit is distributed in the hope that it will be useful,
    00017 // but WITHOUT ANY WARRANTY; without even the implied warranty of
    00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00019 // GNU Library General Public License for more details.
    00020 //
    00021 // You should have received a copy of the GNU Library General Public License
    00022 // along with the SC Toolkit; see the file COPYING.LIB.  If not, write to
    00023 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
    00024 //
    00025 // The U.S. Government is granted a limited license as per AL 91-7.
    00026 //
    00027
    00028 #ifndef _chemistry_qc_wfn_density_h
    00029 #define _chemistry_qc_wfn_density_h
    00030
    00031 #ifdef __GNUC__
    00032 #pragma interface
    00033 #endif
    00034
    00035 #include <math/isosurf/volume.h>
    00036 #include <chemistry/qc/wfn/wfn.h>
    00037 #include <chemistry/qc/basis/extent.h>
    00038 #include <chemistry/molecule/molrender.h>
    00039
    00040 namespace sc {
    00041
    00044 class ElectronDensity: public Volume {
    00045   protected:
    00046     Ref<Wavefunction> wfn_;
    00047     virtual void compute();
    00048   public:
    00049     ElectronDensity(const Ref<KeyVal>&);
    00050     ElectronDensity(const Ref<Wavefunction>&);
    00051     ~ElectronDensity();
    00052     virtual void boundingbox(double valuemin,
    00053                              double valuemax,
    00054                              SCVector3& p1, SCVector3& p2);
    00055 };
    00056
    00062 class BatchElectronDensity: public Volume {
    00063     void zero_pointers();
    00064   protected:
    00065     Ref<Wavefunction> wfn_;
    00066
    00067     Ref<GaussianBasisSet> basis_;
    00068
    00069     // shared between threads
    00070     double *alpha_dmat_;
    00071     double *beta_dmat_;
    00072     double *dmat_bound_;
    00073     ShellExtent *extent_;
    00074
    00075     // private data
    00076     GaussianBasisSet::ValueData *valdat_;
    00077     int ncontrib_;
    00078     int *contrib_;
    00079     int ncontrib_bf_;
    00080     int *contrib_bf_;
    00081     double *bs_values_;
    00082     double *bsg_values_;
    00083     double *bsh_values_;
    00084
    00085     int nshell_;
    00086     int nbasis_;
    00087     int spin_polarized_;
    00088     int linear_scaling_;
    00089     int use_dmat_bound_;
    00090
    00091     bool need_hessian_, need_gradient_;
    00092     bool need_basis_hessian_, need_basis_gradient_;
    00093
    00094     bool using_shared_data_;
    00095
    00096     double accuracy_;
    00097     virtual void init_common_data(bool initialize_density_matrices);
    00098     // this must be called after common data is initialized,
    00099     // either with init_common_data or by copying
    00100     virtual void init_scratch_data();
    00101     void compute_basis_values(const SCVector3&r);
    00102     void compute_spin_density(const double *dmat,
    00103                               double *rho, double *grad, double *hess);
    00104
    00105     virtual void compute();
    00106   public:
    00107
    00109     enum {X=0, Y=1, Z=2};
    00111     enum {XX=0, YX=1, YY=2, ZX=3, ZY=4, ZZ=5};
    00112
    00113     BatchElectronDensity(const Ref<KeyVal>&);
    00114     BatchElectronDensity(const Ref<Wavefunction>&, double accuracy=DBL_EPSILON);
    00125     BatchElectronDensity(const Ref<BatchElectronDensity>& d,
    00126                          bool reference_parent_data=false);
    00127     ~BatchElectronDensity();
    00129     virtual void boundingbox(double valuemin,
    00130                              double valuemax,
    00131                              SCVector3& p1, SCVector3& p2);
    00132
    00134     void clear();
    00135
    00138     void compute_density(const SCVector3 &r,
    00139                          double *alpha_density,
    00140                          double *alpha_density_grad,
    00141                          double *alpha_density_hessian,
    00142                          double *beta_density,
    00143                          double *beta_density_grad,
    00144                          double *beta_density_hessian);
    00145
    00155     virtual void init(bool initialize_density_matrices = true);
    00156
    00161     virtual void set_densities(const RefSymmSCMatrix &aden,
    00162                                const RefSymmSCMatrix &bden);
    00163
    00166     void set_linear_scaling(bool b) { linear_scaling_ = b; }
    00167
    00169     void set_accuracy(double a) { accuracy_ = a; }
    00170
    00172     void set_use_dmat_bound(bool b) { use_dmat_bound_ = b; }
    00173
    00180     double *alpha_density_matrix() { return alpha_dmat_; }
    00182     double *beta_density_matrix()
    00183         { return (spin_polarized_?beta_dmat_:alpha_dmat_); }
    00184     int ncontrib() { return ncontrib_; }
    00185     int *contrib() { return contrib_; }
    00186     int ncontrib_bf() { return ncontrib_bf_; }
    00187     int *contrib_bf() { return contrib_bf_; }
    00188     double *bs_values() { return bs_values_; }
    00189     double *bsg_values() { return bsg_values_; }
    00190     double *bsh_values() { return bsh_values_; }
    00193     void set_need_basis_gradient(bool b) { need_basis_gradient_ = b; }
    00194     void set_need_basis_hessian(bool b) { need_basis_hessian_ = b; }
    00196 };
    00197
    00198 class DensityColorizer: public MoleculeColorizer {
    00199   protected:
    00200     Ref<Wavefunction> wfn_;
    00201     double scale_;
    00202     double reference_;
    00203     int have_scale_;
    00204     int have_reference_;
    00205   public:
    00206     DensityColorizer(const Ref<KeyVal>&);
    00207     ~DensityColorizer();
    00208
    00209     void colorize(const Ref<RenderedPolygons> &);
    00210 };
    00211
    00212 class GradDensityColorizer: public MoleculeColorizer {
    00213   protected:
    00214     Ref<Wavefunction> wfn_;
    00215     double scale_;
    00216     double reference_;
    00217     int have_scale_;
    00218     int have_reference_;
    00219   public:
    00220     GradDensityColorizer(const Ref<KeyVal>&);
    00221     ~GradDensityColorizer();
    00222
    00223     void colorize(const Ref<RenderedPolygons> &);
    00224 };
    00225
    00226 }
    00227
    00228 #endif
    00229
    00230 // Local Variables:
    00231 // mode: c++
    00232 // c-file-style: "CLJ"
    00233 // End: