25 XY = 1+2, XZ = 1+4, YZ = 2+4,
78 friend std::ostream&
operator<<(std::ostream& s,
const DOF& d);
102 MPC(
int n,
int d,
double c =
double(0)) : slave(n,d,c) {
iceq = -1; }
110 void addMaster(
int n,
int d,
double c =
double(1),
double tol =
double(1.0e-8))
112 if (c < -tol || c > tol) master.push_back(
DOF(n,d,c));
118 if (pos < master.size())
119 master[pos].coeff = c;
125 if (pos < master.size())
126 master.erase(master.begin()+pos);
144 friend std::ostream&
operator<<(std::ostream& s,
const MPC& mpc);
149 std::vector<DOF> master;
Comparison predicate for MPCs.
Definition mpc.hh:86
bool operator()(const MPC *lhs, const MPC *rhs) const
Comparison operator used when inserting an MPC-pointer into a set<MPC*,MPC::Less> object.
Definition mpc.cpp:39
static bool compareSlaveDofOnly
Indicates whether only the slave dof number should affect sorting.
Definition mpc.hh:93
A class for representing a general multi-point constraint equation.
Definition mpc.hh:59
friend std::ostream & operator<<(std::ostream &s, const MPC &mpc)
Global stream operator printing a constraint equation.
Definition mpc.cpp:63
size_t getNoMaster() const
Returns the number of master DOFs.
Definition mpc.hh:141
void setSlaveCoeff(double c0)
Assigns a new c0 coefficient to the constraint equation.
Definition mpc.hh:133
MPC(int n, int d, double c=double(0))
Constructor creating a constraint for a specified slave DOF with no master DOFs.
Definition mpc.hh:102
void addMaster(int n, int d, double c=double(1), double tol=double(1.0e-8))
Adds a master DOF to the constraint equation.
Definition mpc.hh:110
const DOF & getSlave() const
Returns a reference to the slave DOF.
Definition mpc.hh:136
void addOffset(double offset)
Increments the c0 coefficient by a given offset.
Definition mpc.hh:130
int iceq
Global constraint equation identifier.
Definition mpc.hh:146
void removeMaster(size_t pos)
Removes the pos'th master DOF from the constraint equation.
Definition mpc.hh:123
void updateMaster(size_t pos, double c)
Updates the coefficient of the pos'th master DOF.
Definition mpc.hh:116
const DOF & getMaster(size_t i) const
Returns a reference to the i'th master DOF.
Definition mpc.hh:138
Direction
An enum for specification of global coordinate directions.
Definition mpc.hh:24
std::set< MPC *, MPC::Less > MPCSet
A set of MPCs.
Definition mpc.hh:153
std::map< int, MPC * > MPCMap
A mapping from dof to MPCs.
Definition mpc.hh:156
Inverting small matrices.
Definition ImplicitAssembly.hpp:43
A struct for representing one term (DOF number and associated coefficient) in a MPC equation.
Definition mpc.hh:67
DOF()
Default constructor.
Definition mpc.hh:69
DOF(int n, int d, double c=double(0))
Convenience constructor creating a valid DOF object.
Definition mpc.hh:75
int dof
Local DOF number within node.
Definition mpc.hh:81
int node
Node number identifying this DOF.
Definition mpc.hh:80
friend std::ostream & operator<<(std::ostream &s, const DOF &d)
Global stream operator printing a DOF instance.
Definition mpc.cpp:86
double coeff
The constrained value, or master DOF scaling coefficient.
Definition mpc.hh:82