Beispiel #1
0
        private void solve(Equation[] limits, Equation limit, List <int> list)
        {
            bool isBranchX = true;

            if (limit.Sign == 1)
            {
                list.Add(1);
            }
            else
            {
                list.Add(0);
            }

            if (limit.X == 0)
            {
                isBranchX = false;
            }

            double maxValue = Double.MaxValue;

            foreach (var equation in limits)
            {
                if (!Utils.IsLineParallel(limit, equation))
                {
                    Equation[] equations = new Equation[2];
                    equations[0] = limit;
                    equations[1] = equation;
                    EquationSystem system = new EquationSystem(equations);
                    var            temp   = system.solve();
                    if (isBranchX && maxValue > temp.Y)
                    {
                        maxValue = temp.Y;
                    }
                    if (!isBranchX && maxValue > temp.X)
                    {
                        maxValue = temp.X;
                    }
                }
            }

            bool valid = true;

            foreach (var equation in limits)
            {
                if (isBranchX)
                {
                    if (!equation.check(limit.X, maxValue))
                    {
                        valid = false;
                    }
                }
                else
                {
                    if (!equation.check(maxValue, limit.Y))
                    {
                        valid = false;
                    }
                }
            }

            Point result = null;

            if (isBranchX)
            {
                result = new Point(limit.Result, maxValue);
            }
            else
            {
                result = new Point(maxValue, limit.Result);
            }



            Equation[] newLimits = new Equation[limits.Length + 1];
            for (int i = 0; i < limits.Length; i++)
            {
                newLimits[i] = limits[i];
            }
            newLimits[limits.Length] = limit;

            /* Метод инициирует событие */
            BranchMethod?.Invoke(new BranchMethodObject(new PointS(result, solveFunction(result.X, result.Y)), new List <int>(list), valid, limits, limit, _func)); // И передаёт данные по текущей ветке

            if (!valid)
            {
                return;
            }

            if (Utils.IsInteger(result))
            {
                var temp = solveFunction(result.X, result.Y);
                if (_maxS == null || temp > _maxS.D)
                {
                    _maxS = new PointS(result, temp);
                }
            }
            else
            {
                if (!Utils.IsInteger(result.X))
                {
                    solve(newLimits, new Equation(1, 0, ">=", Math.Ceiling(result.X)), copyList(list));
                    solve(newLimits, new Equation(1, 0, "<=", Math.Floor(result.X)), copyList(list));
                }
                if (!Utils.IsInteger(result.Y))
                {
                    solve(newLimits, new Equation(0, 1, ">=", Math.Ceiling(result.Y)), copyList(list));
                    solve(newLimits, new Equation(0, 1, "<=", Math.Floor(result.Y)), copyList(list));
                }
            }
        }
Beispiel #2
0
 public BranchMethodObject(PointS point, List <int> list /* Содержит путь ветки, 1 лево 0 право */, bool valid /* решается ли ветка */, Equation[] limits, Equation limit, Equation func)
 {
     _list   = list;
     _point  = point;
     _valid  = valid;
     _limits = limits;
     _limit  = limit;
     _func   = func;
 }
Beispiel #3
0
 public MethodLandAndDoig(Equation func, Equation[] limit)
 {
     _limits = limit;
     _func   = func;
     _maxS   = null;
 }
Beispiel #4
0
 public StartMethodObject(PointS point, Equation[] limits, Equation func)
 {
     _point  = point;
     _limits = limits;
     _func   = func;
 }