﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>C++博客-alqaz</title><link>http://www.cppblog.com/yangxingpping/</link><description>alqaz</description><language>zh-cn</language><lastBuildDate>Tue, 09 Jun 2026 19:08:24 GMT</lastBuildDate><pubDate>Tue, 09 Jun 2026 19:08:24 GMT</pubDate><ttl>60</ttl><item><title>windows图形坐标的映射模式</title><link>http://www.cppblog.com/yangxingpping/archive/2011/01/13/138473.html</link><dc:creator>alqaz</dc:creator><author>alqaz</author><pubDate>Thu, 13 Jan 2011 08:29:00 GMT</pubDate><guid>http://www.cppblog.com/yangxingpping/archive/2011/01/13/138473.html</guid><wfw:comment>http://www.cppblog.com/yangxingpping/comments/138473.html</wfw:comment><comments>http://www.cppblog.com/yangxingpping/archive/2011/01/13/138473.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.cppblog.com/yangxingpping/comments/commentRss/138473.html</wfw:commentRss><trackback:ping>http://www.cppblog.com/yangxingpping/services/trackbacks/138473.html</trackback:ping><description><![CDATA[在windows中确定图形的输出位置都离不开坐标系，GDI支持设备坐标和逻辑坐标。设备坐标系是以像素点作为度量单位，默认方式下，用户区的左上角为原点，&#8594;为X的正方向,&#8595;为Y的正方向。设备坐标分为3中独立的坐标系，屏幕坐标系，窗口坐标系和用户区坐标系。他们的坐标原点的位置是不同的。逻辑坐标是不考虑具体设备的统一的坐标系，windows通过映射模式将逻辑坐标转化为设备坐标。映射模式是在图形绘制过程中所依据的坐标系。<span class="Apple-tab-span" style="white-space:pre">							</span>//计算机图形学 &nbsp; 清华大学出版社<img src ="http://www.cppblog.com/yangxingpping/aggbug/138473.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.cppblog.com/yangxingpping/" target="_blank">alqaz</a> 2011-01-13 16:29 <a href="http://www.cppblog.com/yangxingpping/archive/2011/01/13/138473.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>