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1 // FEGrid.h -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1992, 1993, 1994 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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382
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24 #if !defined (octave_FEGrid_h) |
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25 #define octave_FEGrid_h 1 |
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26 |
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465
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27 #if defined (__GNUG__) |
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28 #pragma interface |
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29 #endif |
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30 |
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31 class ostream; |
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32 |
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33 #include "dColVector.h" |
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34 |
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382
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35 extern "C++" { |
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36 |
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37 #ifndef Vector |
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38 #define Vector ColumnVector |
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39 #endif |
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40 |
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41 class FEGrid |
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42 { |
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43 public: |
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44 |
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45 FEGrid (void); |
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46 FEGrid (const Vector& elbnds); |
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47 FEGrid (int nel, double width); |
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48 FEGrid (int nel, double left, double right); |
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49 |
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50 int in_bounds (double x) const; |
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51 |
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52 int element (double x) const; |
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53 |
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54 double left (void) const; |
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55 double right (void) const; |
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56 |
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57 Vector element_boundaries (void) const; |
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58 |
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59 friend ostream& operator << (ostream&, const FEGrid&); |
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60 |
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61 protected: |
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62 |
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63 Vector elem; |
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64 |
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65 private: |
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66 |
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67 void error (const char* msg) const; |
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68 void nel_error (void) const; |
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69 |
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70 void check_grid (void) const; |
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71 }; |
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72 |
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73 inline FEGrid::FEGrid (void) {} |
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74 |
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75 inline FEGrid::FEGrid (const Vector& elbnds) |
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76 { elem = elbnds; check_grid (); } |
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77 |
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78 inline int FEGrid::in_bounds (double x) const |
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79 { return (x >= left () && x <= right ()); } |
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80 |
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81 inline double FEGrid::left (void) const |
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82 { return elem.elem (0); } |
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83 |
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84 inline double FEGrid::right (void) const |
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85 { return elem.elem (elem.capacity () - 1); } |
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86 |
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87 inline Vector FEGrid::element_boundaries (void) const |
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88 { return elem; } |
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89 |
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382
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90 } // extern "C++" |
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91 |
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92 #endif |
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93 |
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94 /* |
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95 ;;; Local Variables: *** |
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96 ;;; mode: C++ *** |
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97 ;;; page-delimiter: "^/\\*" *** |
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98 ;;; End: *** |
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99 */ |
