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00001 // Copyright (C) 2003 Johan Hoffman and Anders Logg. 00002 // Licensed under the GNU GPL Version 2. 00003 // 00004 // Updates by Johan Jansson 2003 00005 00006 #ifndef __TIME_SLAB_H 00007 #define __TIME_SLAB_H 00008 00009 #include <dolfin/dolfin_log.h> 00010 #include <dolfin/constants.h> 00011 #include <dolfin/ElementGroup.h> 00012 00013 namespace dolfin { 00014 00015 class Element; 00016 class Partition; 00017 class Adaptivity; 00018 class RHS; 00019 class Solution; 00020 00023 00024 class TimeSlab { 00025 public: 00026 00028 TimeSlab(real t0, real t1); 00029 00031 virtual ~TimeSlab(); 00032 00034 bool within(real t) const; 00035 00037 bool finished() const; 00038 00040 real starttime() const; 00041 00043 real endtime() const; 00044 00046 real length() const; 00047 00049 virtual bool accept(RHS& f, real TOL) = 0; 00050 00052 virtual void countElementGroups(unsigned int& size) = 0; 00053 00055 virtual void addElementGroups(NewArray<ElementGroup*>& groups, unsigned int& pos) = 0; 00056 00058 00060 virtual void show(unsigned int depth = 0) const = 0; 00061 00063 friend LogStream& operator<<(LogStream& stream, const TimeSlab& timeslab); 00064 00065 protected: 00066 00067 // Specify and adjust the time step 00068 void setsize(real K, const Adaptivity& adaptivity); 00069 00070 //--- Time slab data --- 00071 00072 // Start and end time for time slab 00073 real t0; 00074 real t1; 00075 00076 // True if we reached the given end time 00077 bool reached_endtime; 00078 00079 // Element group contained in this time slab 00080 ElementGroup group; 00081 00082 }; 00083 00084 } 00085 00086 #endif
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