static public LP FromFile(string fileName)
{
StreamReader sr = new StreamReader(fileName);
LP lp = new LP(false);
int nvars = Int32.Parse(sr.ReadLine());
double[] costs = new double[nvars];
string[] cw = sr.ReadLine().Split(new char[] { ' ' });
for (int i = 0; i < nvars; i++)
{
costs[i] = Double.Parse(cw[i]);
}
lp.InitCosts(costs);
sr.ReadLine();//swallow the line "constraints"
int nConstraints = Int32.Parse(sr.ReadLine());
for (int i = 0; i < nConstraints; i++)
{
string constr = sr.ReadLine();
string[] words = constr.Split(new char[] { ' ' });
List <string> ws = new List <string>();
foreach (string s in words)
{
if (s != "")
{
ws.Add(s);
}
}
double[] coeff = new double[nvars];
for (int j = 0; j < nvars; j++)
{
coeff[j] = Double.Parse((string)ws[j]);
}
Relation rel = (string)ws[nvars] == "=" ? Relation.Equal :
(string)ws[nvars] == "<=" ? Relation.LessOrEqual : Relation.GreaterOrEqual;
double rs = Double.Parse((string)ws[nvars + 1]);
lp.AddConstraint(coeff, rel, rs);
sr.ReadLine(); //eat the empty line
}
sr.Close();
return(lp);
}
public void AddConstraint(double[] coeff, Relation relation, double rightSide)
{
lp.AddConstraint(coeff, relation, rightSide);
rsm.AddConstraint(coeff, relation, rightSide);
}
static public LP FromFile(string fileName)
{
StreamReader sr = new StreamReader(fileName);
LP lp = new LP(false);
int nvars = Int32.Parse(sr.ReadLine());
double[] costs = new double[nvars];
string[] cw = sr.ReadLine().Split(new char[] { ' ' });
for (int i = 0; i < nvars; i++)
costs[i] = Double.Parse(cw[i]);
lp.InitCosts(costs);
sr.ReadLine();//swallow the line "constraints"
int nConstraints = Int32.Parse(sr.ReadLine());
for (int i = 0; i < nConstraints; i++)
{
string constr = sr.ReadLine();
string[] words = constr.Split(new char[] { ' ' });
List<string> ws = new List<string>();
foreach (string s in words)
{
if (s != "")
ws.Add(s);
}
double[] coeff = new double[nvars];
for (int j = 0; j < nvars; j++)
{
coeff[j] = Double.Parse((string)ws[j]);
}
Relation rel = (string)ws[nvars] == "=" ? Relation.Equal :
(string)ws[nvars] == "<=" ? Relation.LessOrEqual : Relation.GreaterOrEqual;
double rs = Double.Parse((string)ws[nvars + 1]);
lp.AddConstraint(coeff, rel, rs);
sr.ReadLine(); //eat the empty line
}
sr.Close();
return lp;
}