<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[WhiteCCai的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/WhiteCCai</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; WhiteCCai]]></copyright><item><title><![CDATA[双精度浮点数转十六进制C++源码]]></title><link>https://blog.youkuaiyun.com/WhiteCCai/article/details/130926034</link><guid>https://blog.youkuaiyun.com/WhiteCCai/article/details/130926034</guid><author>WhiteCCai</author><pubDate>Mon, 29 May 2023 13:17:47 +0800</pubDate><description><![CDATA[符号位：63，指数位：62 ~ 52，尾数位： 51 ~ 0；符号位：31，指数位：30 ~ 23，尾数位： 22 ~ 0；最近碰到个项目需要用到浮点数与16进制互转，记录一下。]]></description><category></category></item><item><title><![CDATA[十六进制浮点数转十进制C++源码]]></title><link>https://blog.youkuaiyun.com/WhiteCCai/article/details/130869191</link><guid>https://blog.youkuaiyun.com/WhiteCCai/article/details/130869191</guid><author>WhiteCCai</author><pubDate>Thu, 25 May 2023 16:10:31 +0800</pubDate><description><![CDATA[/则公式为：v = (-1)^s * 2^e * m。//设符号位为s,指数位为e,尾数位为m。]]></description><category></category></item><item><title><![CDATA[计算旋转中心]]></title><link>https://blog.youkuaiyun.com/WhiteCCai/article/details/122287624</link><guid>https://blog.youkuaiyun.com/WhiteCCai/article/details/122287624</guid><author>WhiteCCai</author><pubDate>Mon, 03 Jan 2022 16:10:40 +0800</pubDate><description><![CDATA[计算旋转中心，可以使用已知圆上三点的坐标求圆心的方式：
寻找一特征点获取坐标，旋转后继续获取当前特征点的坐标，得到三个点坐标p1(x1,y1)，p2(x2,y2)，p3(x3,y3)，最后计算旋转中心:
struct POINT
{
    double x;
    double y;
}Point;

Point RotateCenterCal(Point p1,Point p2,Point p3, Point ptCenter)
{
    //将三点代入圆的方程
    double a = 2 *]]></description><category></category></item></channel></rss>