61 lines
2.3 KiB
C#
61 lines
2.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using Autodesk.Revit.DB;
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namespace COME4Revit
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{
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/// <summary>
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/// Provides static functions to convert unit
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/// </summary>
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static class Unit
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{
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#region Methods
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/// <summary>
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/// Convert the value get from RevitAPI to the value indicated by DisplayUnitType
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/// </summary>
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/// <param name="to">DisplayUnitType indicates unit of target value</param>
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/// <param name="value">value get from RevitAPI</param>
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/// <returns>Target value</returns>
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public static double CovertFromAPI(DisplayUnitType to, double value)
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{
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return value *= ImperialDutRatio(to);
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}
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/// <summary>
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/// Convert a value indicated by DisplayUnitType to the value used by RevitAPI
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/// </summary>
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/// <param name="value">Value to be converted</param>
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/// <param name="from">DisplayUnitType indicates the unit of the value to be converted</param>
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/// <returns>Target value</returns>
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public static double CovertToAPI(double value, DisplayUnitType from )
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{
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return value /= ImperialDutRatio(from);
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}
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/// <summary>
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/// Get ratio between value in RevitAPI and value to display indicated by DisplayUnitType
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/// </summary>
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/// <param name="dut">DisplayUnitType indicates display unit type</param>
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/// <returns>Ratio </returns>
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private static double ImperialDutRatio(DisplayUnitType dut)
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{
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switch (dut)
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{
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case DisplayUnitType.DUT_DECIMAL_FEET: return 1;
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case DisplayUnitType.DUT_FEET_FRACTIONAL_INCHES: return 1;
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case DisplayUnitType.DUT_DECIMAL_INCHES: return 12;
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case DisplayUnitType.DUT_FRACTIONAL_INCHES: return 12;
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case DisplayUnitType.DUT_METERS: return 0.3048;
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case DisplayUnitType.DUT_CENTIMETERS: return 30.48;
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case DisplayUnitType.DUT_MILLIMETERS: return 304.8;
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case DisplayUnitType.DUT_METERS_CENTIMETERS: return 0.3048;
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case DisplayUnitType.DUT_SQUARE_METERS: return 0.092904; // 1평방피트->1평방미터
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default: return 1;
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}
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}
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#endregion
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}
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}
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