[简单]poi word 2007中的单位转换

          以前使用poi操作word 2007时候会遇到设置页面大小等问题，当时发现1cm≈567,为什么要这样一直不清楚，今天发现一篇关于这方面的文章。

          文章链接:http://startbigthinksmall.wordpress.com/2010/01/04/points-inches-and-emus-measuring-units-in-office-open-xml/,打不开的同学请看下面的图片。

         

     

    

     

     1cm≈567 (567=1*20*72/2.54)   。
     文章作者提供了换算的工具,链接:http://lcorneliussen.de/raw/dashboards/ooxml/ ，如下:

     

     

public class POI_单位转换_S3_Test {
	public static void main(String[] args) {
		double cm = mm2Cm(25.4);
		System.out.println(String.format("%s-->%s=%s", "mm", "cm", cm));
		double inch = cm2Inch(cm);
		System.out.println(String.format("%s-->%s=%s", "cm", "inch", inch));
		double pt = inch2Pt(inch);
		System.out.println(String.format("%s-->%s=%s", "inch", "pt", pt));
		double dxa = pt2Dxa(pt);
		System.out.println(String.format("%s-->%s=%s", "pt", "dxa", dxa));
		double emu = dxa2Emu(dxa);
		System.out.println(String.format("%s-->%s=%s", "dxa", "emu", emu));
		double dxa2 = emu2dxa(emu);
		System.out.println(String.format("%s-->%s=%s", "emu", "dxa", dxa2));
		System.out.println(String.format("%s-->%s=%s", "dxa", "pt", dxa2points(1440.0)));
		System.out.println(String.format("%s-->%s=%s", "dxa", "inch", dxa2inch(1440.0)));
	}

	public static double mm2Cm(double mm) {
		return mm / 10;
	}

	public static double cm2Inch(double cm) {
		return cm / 2.54;
	}

	public static double inch2Pt(double inch) {
		return inch * 72;
	}

	public static double pt2Dxa(double pt) {
		return pt * 20;
	}

	public static double dxa2inch(double dxa) {
		return dxa2points(dxa) / 72;
	}

	public static double dxa2points(double dxa) {
		return dxa / 20;
	}

	public static double dxa2Emu(double dxa) {
		return 914400 * dxa2inch(dxa);
	}

	public static double emu2dxa(double emu) {
		return pt2Dxa(inch2Pt(emu)) / 914400;
	}
}

    结果为:

   

mm-->cm=2.54
cm-->inch=1.0
inch-->pt=72.0
pt-->dxa=1440.0
dxa-->emu=914400.0
emu-->dxa=1440.0
dxa-->pt=72.0
dxa-->inch=1.0

    转载请注明原处，原文链接:http://53873039oycg.iteye.com/blog/2159659  ,谢谢。

    全文完。