SectionPage 特殊用途
<img border=0 src="/dasher/images/hires/mini96028.jpg" alt="hands-free writing" width="96" height="72" align=right>
<h2>特殊用途 </h2>
<p>Dasher适用于无法使用双手键盘的计算机使用者 . 单手或没有手的用户可以使用 Dasher.
 视觉是唯一必需的.
</p>
<p>
Dasher可以使用 <b>鼠标</b>, 触摸板(trackpad), 触摸屏(touchscreen), 轨迹球 (rollerball),或操纵杆 (joystick)
 来操作- 任何可以取代鼠标的作用的两维的定点设备
 . 足部或头部鼠标也可供选择.
</p>
<p>
它还可以用一个 <b>眼球追踪系统</b>操作, 构成一个完全不用手的输入系统
. 在一个小时的练习之后, 一些使用者就能用结合眼球追踪系统的Dasher以每分钟20个单词的速度进行输入.
 </p><p>


 想观看一个眼球追踪系统Dasher的视频示例,请参考 
 <a href=http://www.inference.phy.cam.ac.uk/djw30/dasher/movies.html><b>David Ward's
 movie page</b></a>. [在视频中, David 敲击空格键运行程序, 随后他只用眼睛来操作.]

</p>
<p>
        与 眼球追踪系统 + 可视键盘 相比, Dasher 有以下优点

     <ul><li> 更快

        <li> 更准确

        <li> 更有趣</ul>
</p>
<p>
<dl>
<dt><b>我从肩部以下瘫痪.  我需要什么来使用Dasher?
</b>
</dt>
<dd>你有电脑么? (Linux 或 Windows) 能用头部鼠标(head-mouse)么? 或其他种类的鼠标?
 也许一个能控制鼠标坐标的嘴部操控系统(mouth-stick)?
 如果有, 只需 <a href='/dasher/websource/chinese/download'>下载Dasher的最新版本</a>, 就可以用Dasher输入了. 
<br>
如果标准鼠标或头部鼠标不可用, 那你需要一个眼球追踪系统来操控鼠标. 
<br>
 我们使用的系统来自 <a href=http://www.eyetechds.com/>Eyetech</a>
   叫做 <a href=http://www.eyetechds.com/news.htm>Quickglance</a>.
</dd>
</dl>
</p>
<p>
 这里是一些给出有关非标准鼠标设备的信息的链接.
 <ul>
 <li> <b>头部鼠标(Head-mouse)</b> From MouseVision Inc: VisualMouse
	(VM) software 
	 - widely used by  disabled people,
	 can be downloaded from  <a href=http://www.mousevision.com/>www.mousevision.com</a>
	   free of charge.
VM is a pointing device using a webcam that
recognizes head motion (with no gear on the head).
It works with 
 Windows 98/ME/2000. [23/8/02.]
 </li>
 <li> <a href=http://www.naturalpoint.com/>Smart-Nav  Head mouse</a> (was called TrackIR)</li>
      
 <li> <a href=http://www.gyration.com/gyromouse_presenter.htm>GyroMouse - Free space mouse</a> - good for people with limited reach - and could probably be used as a head mouse or foot mouse.
</li>
      <li><b>Carpal tunnel-friendly mouse</b>:
	   One Dasher-user recommends the hand-held IBM GlidePoint mouse. 
      <li>
	<b>Eyetrackers</b>: <a href=http://www.eyetechds.com/>Eyetech</a>
</li>
<li> <b>Eyetrackers</b>: <a href=http://www.a-s-l.com/>Applied Science Laboratories</a>
     </li>
     <li><b>Foot-control</b>: Vik writes:<br>
	  I thought you might like to know that I have been running
	  the Linux version of Dasher on the Sony Playstation 2.

I used the  Sony "Dance Mat" controller to control Dasher with my feet.

This is a relatively low-cost platform with a variety of controllers
available, some of which may suit certain disabilites.
 </ul>
</p>