Python动态刷新kml

      以下小段代码达到的效果是kml利用networklink不断去执行服务器上的phython代码，动态改变点的经纬度坐标。

首先在Internet信息服务下默认网站下新建虚拟目录，然后在该目录下的“虚拟目录”选项卡中创建应用程序，再点击“配置”，进入“应用程序配置”，点击添加（如下图），最后确定。

 

 

在该目录的资源管理器下新建randomPlacemark.py文件，代码如下：

 

  
    

   
     
   
     #
   
     !C:/Python25/python.exe
  
    
  
    

   
     #!以上更改为自己的python安装路径
   
     

   
     

   
     import
   
      random

latitude 
   
     =
   
      random.randrange(
   
     -
   
     90
   
     , 
   
     90
   
     )
longitude 
   
     =
   
      random.randrange(
   
     -
   
     180
   
     , 
   
     180
   
     )
kml 
   
     =
   
      (
 
   
     '
   
     <?xml version="1.0" encoding="UTF-8"?>\n
   
     '
   
     
 
   
     '
   
     <kml xmlns="http://www.opengis.net/kml/2.2">\n
   
     '
   
     
 
   
     '
   
     <Placemark>\n
   
     '
   
     
 
   
     '
   
     <name>Random Placemark</name>\n
   
     '
   
     
 
   
     '
   
     <Point>\n
   
     '
   
     
 
   
     '
   
     <coordinates>%d,%d</coordinates>\n
   
     '
   
     
 
   
     '
   
     </Point>\n
   
     '
   
     
 
   
     '
   
     </Placemark>\n
   
     '
   
     
 
   
     '
   
     </kml>
   
     '
   
     
 ) 
   
     %
   
     (longitude, latitude)

   
     print
   
      
   
     '
   
     Content-Type: application/vnd.google-earth.kml+xml\n
   
     '
   
     

   
     print
   
      kml

  
    

 

然后新建文件test.kml

  
    

   
     
   
     <?
   
     xml version="1.0" encoding="UTF-8"
   
     ?>
   
     

   
     <
   
     kml 
   
     xmlns
   
     ="http://www.opengis.net/kml/2.2"
   
     >
   
     
 
   
     <
   
     Folder
   
     >
   
      
 
   
     <
   
     name
   
     >
   
     Network Links
   
     </
   
     name
   
     >
   
      
 
   
     <
   
     visibility
   
     >
   
     1
   
     </
   
     visibility
   
     >
   
      
 
   
     <
   
     open
   
     >
   
     0
   
     </
   
     open
   
     >
   
      
 
   
     <
   
     description
   
     >
   
     Network link example 1
   
     </
   
     description
   
     >
   
      
 
   
     <
   
     NetworkLink
   
     >
   
      
 
   
     <
   
     name
   
     >
   
     Random Placemark
   
     </
   
     name
   
     >
   
      
 
   
     <
   
     visibility
   
     >
   
     1
   
     </
   
     visibility
   
     >
   
      
 
   
     <
   
     refreshVisibility
   
     >
   
     1
   
     </
   
     refreshVisibility
   
     >
   
      
 
   
     <
   
     open
   
     >
   
     0
   
     </
   
     open
   
     >
   
      
 
   
     <
   
     description
   
     >
   
     A simple server-side script that generates a new random 
 placemark on each call
   
     </
   
     description
   
     >
   
      
 
   
     <
   
     refreshVisibility
   
     >
   
     0
   
     </
   
     refreshVisibility
   
     >
   
      
 
   
     <
   
     flyToView
   
     >
   
     1
   
     </
   
     flyToView
   
     >
   
      
 
   
     <
   
     Link
   
     >
   
      
 
   
     <
   
     href
   
     >
   
     http://computername/虚拟目录名/randomPlacemark.py
   
     </
   
     href
   
     >
   
      
 
   
     <
   
     refreshMode
   
     >
   
     onInterval
   
     </
   
     refreshMode
   
     >
   
     
 
   
     <
   
     refreshInterval
   
     >
   
     5
   
     </
   
     refreshInterval
   
     >
   
     
 
   
     <
   
     viewRefreshMode
   
     >
   
     onStart
   
     </
   
     viewRefreshMode
   
     >
   
     
 
   
     <
   
     viewRefreshTime
   
     >
   
     4
   
     </
   
     viewRefreshTime
   
     >
   
      
 
   
     </
   
     Link
   
     >
   
      
 
   
     </
   
     NetworkLink
   
     >
   
      
 
   
     </
   
     Folder
   
     >
   
     
 
   
     </
   
     kml
   
     >