Struct gurobi::model::Model

pub struct Model<'a> {
    // some fields omitted
}

A Gurobi model object associated with certain environment.

Methods

impl<'a> Model<'a>

fn new(env: &'a Env, model: *mut GRBmodel) -> Model<'a>

create an empty model which associated with certain environment.

fn update(&mut self) -> Result<()>

apply all modification of the model to process.

fn copy(&self) -> Result<Model>

create a copy of the model

fn optimize(&mut self) -> Result<()>

optimize the model.

fn write(&self, filename: &str) -> Result<()>

write information of the model to file.

fn add_var(&mut self, name: &str, vtype: VarType) -> Result<Var>

add a decision variable to the model.

fn add_constr(&mut self, name: &str, expr: LinExpr, sense: ConstrSense, rhs: f64) -> Result<Constr>

add a linear constraint to the model.

fn add_qconstr(&mut self, constrname: &str, expr: QuadExpr, sense: ConstrSense, rhs: f64) -> Result<QConstr>

add a quadratic constraint to the model.

fn add_sos(&mut self, vars: &[Var], weights: &[f64], sostype: SOSType) -> Result<SOS>

add Special Order Set (SOS) constraint to the model.

fn set_objective<Expr: Into<QuadExpr>>(&mut self, expr: Expr, sense: ModelSense) -> Result<()>

Set the objective function of the model.

fn get<A: Attr>(&self, attr: A) -> Result<A::Out>

Query the value of attributes which associated with variable/constraints.

fn set<A: Attr>(&mut self, attr: A, val: A::Out) -> Result<()>

Set the value of attributes which associated with variable/constraints.

fn get_values<A: AttrArray, P: Proxy>(&self, attr: A, item: &[P]) -> Result<Vec<A::Out>>

Query the value of attributes which associated with variable/constraints.

fn set_values<A: AttrArray, P: Proxy>(&mut self, attr: A, item: &[P], val: &[A::Out]) -> Result<()>

Set the value of attributes which associated with variable/constraints.

fn feas_relax(&mut self, feasobjtype: FeasType, minrelax: bool, vars: &[Var], constrs: &[Constr], lbpen: &[f64], ubpen: &[f64], rhspen: &[f64]) -> Result<(f64, Iter<Var>, Iter<Constr>, Iter<QConstr>)>

Modify the model to create a feasibility relaxation.

fn compute_iis(&mut self) -> Result<()>

Compute an Irreducible Inconsistent Subsystem (IIS) of the model.

fn status(&self) -> Result<Status>

Retrieve the status of the model.

fn get_vars(&self) -> Iter<Var>

Retrieve an iterator of the variables in the model.

fn get_constrs(&self) -> Iter<Constr>

Retrieve an iterator of the linear constraints in the model.

fn get_qconstrs(&self) -> Iter<QConstr>

Retrieve an iterator of the quadratic constraints in the model.

fn get_sos(&self) -> Iter<SOS>

Retrieve an iterator of the special order set (SOS) constraints in the model.

fn remove_var(&mut self, item: Var) -> Result<()>

Remove a variable from the model.

fn remove_constr(&mut self, item: Constr) -> Result<()>

Remove a linear constraint from the model.

fn remove_qconstr(&mut self, item: QConstr) -> Result<()>

Remove a quadratic constraint from the model.

fn remove_sos(&mut self, item: SOS) -> Result<()>

Remove a special order set (SOS) cnstraint from the model.

Trait Implementations

impl<'a> Drop for Model<'a>

fn drop(&mut self)

A method called when the value goes out of scope.