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# extent.h

    00001 //
    00002 // extent.h
    00003 //
    00004
    00005 #ifndef _chemistry_qc_basis_extent_h
    00006 #define _chemistry_qc_basis_extent_h
    00007
    00008 #ifdef __GNUC__
    00009 #pragma interface
    00010 #endif
    00011
    00012 #include <float.h>
    00013 #include <chemistry/qc/basis/basis.h>
    00014
    00015 namespace sc {
    00016
    00017 struct ExtentData {
    00018     int shell;
    00019     double bound;
    00020     ExtentData() {}
    00021     ExtentData(int s, double b): shell(s), bound(b) {}
    00022 };
    00023
    00024 ARRAY_dec(ExtentData);
    00025
    00026 class ShellExtent: public RefCount {
    00027     double lower_[3];
    00028     double resolution_;
    00029     int n_[3];
    00030     ArrayExtentData *contributing_shells_;
    00031     ArrayExtentData null_;
    00032
    00033     ArrayExtentData &data(int *b);
    00034     double distance(double loc, int axis, int origin, int point);
    00035     ArrayExtentData &data(int x, int y, int z);
    00036   public:
    00037     ShellExtent();
    00038     ~ShellExtent();
    00039     void init(const Ref<GaussianBasisSet>&,
    00040               double resolution = 1.0, double tolerance = DBL_EPSILON);
    00043     const ArrayExtentData &contributing_shells(int x, int y, int z)
    00044         { return data(x,y,z); }
    00045     const ArrayExtentData &contributing_shells(double x, double y, double z);
    00046     void print(std::ostream &o = ExEnv::out0());
    00047     const int *n() const { return n_; }
    00048     int n(int ixyz) const { return n_[ixyz]; }
    00049     double lower(int ixyz) const { return lower_[ixyz]; }
    00050     double resolution() const { return resolution_; }
    00051 };
    00052
    00053 }
    00054
    00055 #endif
    00056
    00057 // Local Variables:
    00058 // mode: c++
    00059 // c-file-style: "CLJ"
    00060 // End: