using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TProduct.Common
{
    //小数点数
    public  class RoundHelper
    {
 
        public static double GetDispValueFlow(double flow)
        {
            if (flow < 1)
                return Math.Round(flow, 4);
            else if (flow < 5)
                return Math.Round(flow, 3);
            else if (flow < 15)
                return Math.Round(flow, 2);
            else
                return Math.Round(flow, 1);
        }
        public static double GetDispValueHead(double head)
        {
            if (head < 1)
                return Math.Round(head, 4);
            else if (head < 5)
                return Math.Round(head, 3);
            else if (head < 15)
                return Math.Round(head, 2);
            else
                return Math.Round(head, 1);
        }

        public static double GetDispValuePress(double head)
        {
            if (head < 2)
                return Math.Round(head, 4);
            else if (head < 5)
                return Math.Round(head, 3);
            else if (head < 15)
                return Math.Round(head, 2);
            else
                return Math.Round(head, 1);
        }

        public static double GetDispValuePower(double power)
        {
            if (power < 1)
                return Math.Round(power, 4);
            else if (power < 5)
                return Math.Round(power, 3);
            else if (power < 15)
                return Math.Round(power, 2);
            else
                return Math.Round(power, 1);
        }
        public static double GetDispValueEta(double eta)
        {
            if (eta < 30)
                return Math.Round(eta, 2);
            else
                return Math.Round(eta, 1);
        }
        public static int NpshRoundNumber_Large5 = 1;
        public static int NpshRoundNumber_small5 = 2;
        public static double GetDispValueNPSH(double npsh)
        {
            if (npsh < 5)
                return Math.Round(npsh, NpshRoundNumber_small5);
            else
                return Math.Round(npsh, NpshRoundNumber_Large5);
        }

        public static void Round_HEP(ref Eventech.Model.GroupPoint pt)
        {
            if (pt == null)
                return;
            pt.H = GetDispValueHead(pt.H);
            pt.E = Math.Round(pt.E,1);
            pt.P = GetDispValuePower(pt.P);
            pt.NPSH = GetDispValueNPSH(pt.NPSH);
        }
    }
}