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//////////////////////////////////////////////////////////////////////////////
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//文件 Unit.h
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//主要功能:
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//
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//程序编写: 2005-12-07
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/////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include "Point2D.h"
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class AFX_EXT_CLASS CUnit
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{
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public:
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CUnit();
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virtual ~CUnit();
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enum EType
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{
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UNIT_KM = 0, //公里 kilometres
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UNIT_M = 1, //米 metre
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UNIT_DM = 2, //分米 decimeter
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UNIT_CM = 3, //厘米 centimeter
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UNIT_MM = 4, //毫米 millimetres
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UNIT_SECOND = 5, //秒 second（60分之一分）
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UNIT_MS = 6, //毫秒 millisecond
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UNIT_FOOT = 7, //英尺 foot = 304.8mm
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UNIT_INCH = 8, //英寸 inch = 25.4mm
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UNIT_MILE = 9, //英里 mile = 1.609*1e6mm
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UNIT_YARD = 10, //码 yard = 914.4mm
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UNIT_SEA_MILE = 11, //海里 nautical mile = 1852000mm
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UNIT_RUSSIAN_MILE = 12, //俄里 Russian mile = 1.0668*1e6mm
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UNIT_RUSSIAN_UNIT_OF_LENGTH = 13, //俄丈 Russian unit of length = 2133.6mm
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UNIT_JAPANESE_MILE = 14, //日里 Japanese mile = 3.9273*1e6mm
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UNIT_JAPANESE_FOOT = 15, //日尺 Japanese foot = 303mm;
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//经纬度单位定义
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UNIT_DEGREE = 16, //度(360度)
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UNIT_DMS = 17, //度分秒,即±DDDMMSS.SSSS格式
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UNIT_MINUTE = 18, //分(60分之一度)
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UNIT_RADIAN = 19, //弧度
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UNIT_GRAD = 20 //梯度 1梯度=0.015707963267949弧度
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};
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double Millimetres(double data, EType unit); //转换为毫米
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double Millimetres(EType unit);
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double Millimetres(int unit);
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double Meter(double data, EType unit); //转换为米
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double Meter(EType unit);
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double GetMillisecondPerCM() { return msPerCM; }
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double msPerCM; //(毫秒/厘米)
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};
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////////////////////////////////////////////////////////////////////
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//单位选择模式有两种：
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// 0：为实际坐标模式，输出单位与图件实际坐标单位相同
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// 1：为打印单位模式，固定单位为毫米
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class AFX_EXT_CLASS CUnitTransform : public CUnit
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{
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public:
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CUnitTransform();
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double toPrintUnit(double dRealVal); //将实际单位转换为打印单位（毫米）
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double toRealUnit(double dPrintVal); //将打印单位转换为实际单位
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CSize8 toPrintUnit(CSize8 sz); //将实际单位转换为打印单位（毫米）
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CSize8 toRealUnit(CSize8 sz); //将打印单位转换为实际单位
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void SetTransform(double scale, int nUnit);
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void SetTransform(double scale, EType eUnit);
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int GetUnit() { return (int)m_unit; } //获得当前显示单位
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double GetScale() { return m_dScaleFactor; }
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int GetShowUnit(); //获得当前显示单位
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public:
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double m_dScaleFactor; //比例: 1:m_dScaleFactor
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EType m_unit; //当前单位
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int m_nMode; //单位选择模式
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};
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