private static void PopulateProperties(ExpressionFieldUI ui, ExpressionField field)
{
PopulateBaseProperties(ui, field);
ui.Expression = field.Expression;
ui.Type = field.DisplayType;
}
public ClLinearInequality(ClLinearExpression cle1, Cl.Operator op, ClLinearExpression cle2, ClStrength strength, double weight = 1.0)
: base(cle2.Clone(), strength, weight)
/* throws ExClInternalError */
{
const double EPSILON = 1e-8;
switch (op)
{
case Cl.Operator.GreaterThanOrEqualTo:
SetupGreaterThanOrEqualTo(cle1);
break;
case Cl.Operator.GreaterThan:
SetupGreaterThanOrEqualTo(cle1);
ExpressionField.IncrementConstant(-EPSILON);
break;
case Cl.Operator.LessThanOrEqualTo:
SetupLessThanOrEqualTo(cle1);
break;
case Cl.Operator.LessThan:
SetupLessThanOrEqualTo(cle1);
ExpressionField.IncrementConstant(-EPSILON);
break;
default:
// invalid operator
throw new CassowaryInternalException("Invalid operator in ClLinearInequality constructor");
}
}
public ClLinearEquation(ClLinearExpression cle1, ClLinearExpression cle2, ClStrength strength, double weight = 1.0)
: base(cle1.Clone(), strength, weight)
{
ExpressionField.AddExpression(cle2, -1.0);
}
public ClLinearEquation(ClLinearExpression cle, ClAbstractVariable clv, ClStrength strength, double weight = 1.0)
: base(cle.Clone(), strength, weight)
{
ExpressionField.AddVariable(clv, -1.0);
}
public ClLinearEquation(ClAbstractVariable clv, double val, ClStrength strength, double weight = 1.0)
: base(new ClLinearExpression(val), strength, weight)
{
ExpressionField.AddVariable(clv, -1.0);
}
private void SetupLessThanOrEqualTo(ClLinearExpression expr)
{
ExpressionField.AddExpression(expr, -1.0);
}
private void SetupGreaterThanOrEqualTo(ClLinearExpression expr)
{
ExpressionField.MultiplyMe(-1.0);
ExpressionField.AddExpression(expr);
}
