2006-07-15 11:29
by
马维峰,
2785
visits,
网摘,
编辑
SharpMap作者的Blog上新贴了一个帖子，是关于使用XAML渲染地图的，正好前两天和Edison聊到这个话题，呵呵。
原文如下：
I was just reading a few articles on XAML - Microsoft new UI language for rendering vector content and user interfaces - when it hit me that this probably can get you much further in web mapping interaction than SVG can. XAML is part of the "Windows Presentation Foundation" a part of .NET Framework 3.0
My first attempt to generate XALM was done by creating a new renderer for SharpMap, and below you can see my first results in XamlPad. The data here has been created based on a SharpMap map by my quick'n'dirty XamlRenderer for SharpMap.
All it takes with the new renderer is initializing the new renderer with your map, and request a new map:
SharpMap.Xaml.Renderer XamlRenderer = new SharpMap.Xaml.Renderer(map);
string xaml = XamlRenderer.GetMap();
If you zip the generated XAML file you even get a 20% reduction over a PNG image.
Next step is to add interaction like zooming, querying etc…
Download XAML for the above worldmap (261,36 KB)
感觉使用XAML是不是和SVG类似，至少从
技术思路上来看，那么，对于大数据量，海量数据，根据空间索引来控制输出范围怎么解决？目前对于可以达到公众型Web地图效率的，估计只有GMap的方式可以使用，但这种方式的弊端是显而易见的，下一个突破点在什么地方呢？
欢迎讨论！
