<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Erva的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/hawaecho</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; hawaecho]]></copyright><item><title><![CDATA[write a tf listener]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/46744901</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/46744901</guid><author>hawaecho</author><pubDate>Fri, 03 Jul 2015 19:06:51 +0800</pubDate><description><![CDATA[写tf listener时遇到的问题：
参考网页：http://wiki.ros.org/tf/Tutorials/Writing%20a%20tf%20listener%20%28C%2B%2B%29
1.  
How to publish the pose (position) of the robot after having the tf listener to "listener.]]></description><category></category></item><item><title><![CDATA[hokuyo rviz配置]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/46432829</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/46432829</guid><author>hawaecho</author><pubDate>Tue, 09 Jun 2015 22:44:06 +0800</pubDate><description><![CDATA[Install 
$ sudo apt-get install ros-%DISTro%-hokuyo-node

Configuring the Hokuyo


$ ls -l /dev/ttyACM0




$ sudo chmod a+rw /dev/ttyACM0
Starting a roscore$ roscore


Running the hoku]]></description><category></category></item><item><title><![CDATA[在Ubuntu 14.04上装teamviewer]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/45365829</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/45365829</guid><author>hawaecho</author><pubDate>Wed, 29 Apr 2015 14:10:59 +0800</pubDate><description><![CDATA[问题： Installed
 Teamviewer using a 64-bits system, but I get a dependency error

解决方法：



首先, 下载:
wget http://www.teamviewer.com/download/teamviewer_linux.deb
用Gdebi安装：


sudo dpkg --add-ar]]></description><category></category></item><item><title><![CDATA[Latex错误： Undefined control sequence. \override margin]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/45246009</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/45246009</guid><author>hawaecho</author><pubDate>Fri, 24 Apr 2015 14:21:40 +0800</pubDate><description><![CDATA[这个package 是由IEEE conf, trans定义的，所以首先要选择正确的document class，比如：\documentclass[journal]{IEEEtran}, 然后在同一目录添加文件IEEEtran.bst, IEEEtran.cls.]]></description><category></category></item><item><title><![CDATA[Dell m4800 装Ubuntu 14.04 无线网卡驱动的问题]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/45174785</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/45174785</guid><author>hawaecho</author><pubDate>Tue, 21 Apr 2015 19:49:12 +0800</pubDate><description><![CDATA[由于系统驱动问题，DELL M4800安装Ubuntu 14.04找不到wifi模块，需要更新驱动。步骤如下：


Update of the driver : 

sudo apt-get update


sudo apt-get --reinstall install bcmwl-kernel-source



如果还没找到wifi，在官网下载最新的驱动，编译。按照]]></description><category></category></item><item><title><![CDATA[To restore Nautilus' split screen (F3) feature (找回F3分隔文件夹窗口) in Ubuntu 14.04]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/45151853</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/45151853</guid><author>hawaecho</author><pubDate>Mon, 20 Apr 2015 16:23:27 +0800</pubDate><description><![CDATA[The simplest option is to change file managers. Nemo is quite similar to what Nautilus used to be.



sudo add-apt-repository ppa:webupd8team/nemo
sudo apt-get update
sudo apt-get install nemo nem]]></description><category></category></item><item><title><![CDATA[dpkg: dependency problems prevent configuration of initramfs-tools]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/42028389</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/42028389</guid><author>hawaecho</author><pubDate>Fri, 19 Dec 2014 14:59:47 +0800</pubDate><description><![CDATA[Try using dpkg directly:
dpkg --configure -a

If this still complains about dependencies, try
dpkg --configure -a --force-depends]]></description><category></category></item><item><title><![CDATA[Working copy XXX locked and cleanup failed in SVN]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/41847083</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/41847083</guid><author>hawaecho</author><pubDate>Wed, 10 Dec 2014 15:48:10 +0800</pubDate><description><![CDATA[One approach would be to:

Copy edited items to another location.Delete the folder containing the problem path.Update the containing folder through Subversion.Copy your files back or merge changes a]]></description><category></category></item><item><title><![CDATA[SVN remains in conflict?]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/41847073</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/41847073</guid><author>hawaecho</author><pubDate>Wed, 10 Dec 2014 15:47:11 +0800</pubDate><description><![CDATA[svn resolved]]></description><category></category></item><item><title><![CDATA[Oracle VM Virtualbox使用总结]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/39232779</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/39232779</guid><author>hawaecho</author><pubDate>Fri, 12 Sep 2014 17:31:16 +0800</pubDate><description><![CDATA[1. 网络设置
NAT, NAT network, bridge 等网络连接方式可通过主机上网。
Host-only 不能接外网，但是可以组建一个局域网在192.168.56.x. 

如果 Clone virtual node，默认的MAC地址可能是一样的，可以通过在Network->Advance->Adapter处刷新，从而更新ip]]></description><category></category></item><item><title><![CDATA[remove unwanted space line]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/39188303</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/39188303</guid><author>hawaecho</author><pubDate>Wed, 10 Sep 2014 22:14:59 +0800</pubDate><description><![CDATA[:g/^$/d]]></description><category></category></item><item><title><![CDATA[多个log文件合并到一个文件]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/39188143</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/39188143</guid><author>hawaecho</author><pubDate>Wed, 10 Sep 2014 22:05:38 +0800</pubDate><description><![CDATA[awk 'FNR==1{print ""}{print $4}' qos_logger_one-map-msg_2014_9_9_5_* > map2014090905.log]]></description><category></category></item><item><title><![CDATA[Install Matlab in Ubuntu 12.04]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/37936617</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/37936617</guid><author>hawaecho</author><pubDate>Fri, 18 Jul 2014 20:02:31 +0800</pubDate><description><![CDATA[First make a mount point, which is just a folder. For example:
mkdir /media/mathworks
Then mount the downloaded ISO to that directory. For this example, the ISO is in the home folder under the downl]]></description><category></category></item><item><title><![CDATA[建立一个rospkg]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/31744073</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/31744073</guid><author>hawaecho</author><pubDate>Tue, 17 Jun 2014 11:13:26 +0800</pubDate><description><![CDATA[$ roscreate-pkg lqm_priority_setter rospy ros_rt_wmp]]></description><category></category></item><item><title><![CDATA[wmp Sniffer]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/26578501</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/26578501</guid><author>hawaecho</author><pubDate>Thu, 22 May 2014 13:30:11 +0800</pubDate><description><![CDATA[Under Statistics: Flows->Global Flow you have the fields
1. "Message delivery 
delay + PAP" that indicates the delay of 
delivery including the corresponding PAP
2. "By priority (Ages)" that indic]]></description><category></category></item><item><title><![CDATA[mathlab saveas figures into a pdf, eps]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/25498195</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/25498195</guid><author>hawaecho</author><pubDate>Sat, 10 May 2014 17:46:40 +0800</pubDate><description><![CDATA[saveas(1, 'abc.eps', 'psc2')
saveas(1, 'abc.pdf', 'pdf')]]></description><category></category></item><item><title><![CDATA[cpu load measurement]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/24816835</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/24816835</guid><author>hawaecho</author><pubDate>Wed, 30 Apr 2014 23:07:58 +0800</pubDate><description><![CDATA[参考：
http://askubuntu.com/questions/22021/how-to-log-cpu-load




里面还介绍了怎么log特定进程的cpu占用率。
对你的问题更加实用一些。

要修改里面比较长的那一条命令。我试了半天，下面这条应该可以搞定了：

假设在client上运行的命令行命令为python testcpu.py, 你现在要log那个程序的CPU占用]]></description><category></category></item><item><title><![CDATA[Bandwidth Measurement]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/24816675</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/24816675</guid><author>hawaecho</author><pubDate>Wed, 30 Apr 2014 23:00:20 +0800</pubDate><description><![CDATA[========here first ===========

By iftop, I found another tool: 
$ sudo apt-get install bwm-ng

by which, you can save the log into a file! it is more helpful.
I did not check in detail the usag]]></description><category></category></item><item><title><![CDATA[bandwidth in rt-wmp]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/24554609</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/24554609</guid><author>hawaecho</author><pubDate>Sat, 26 Apr 2014 21:00:07 +0800</pubDate><description><![CDATA[Regarding the fact that not all the flows are working, I thinks the problem is that the
bandwidth is not enough.

Looking at the config.h I can see that you've three video flows sources and 3 desti]]></description><category></category></item><item><title><![CDATA[dynamicly change priority on rt-wmp]]></title><link>https://blog.youkuaiyun.com/hawaecho/article/details/24354457</link><guid>https://blog.youkuaiyun.com/hawaecho/article/details/24354457</guid><author>hawaecho</author><pubDate>Wed, 23 Apr 2014 11:27:28 +0800</pubDate><description><![CDATA[To change the priority of some
R1 topic FROM R1, you have to call the service:

/R1/wmp_control

while if you have to change the priority of some R0 topic
again FROM R1 you have to call the serv]]></description><category></category></item></channel></rss>