vrml三维电子地图，浏览，数据查询，显示控制等方法，及相应实例代码。-vrml three-dimensional electronic maps, browsing, data query, display control method, and the corresponding example code.

C#和ARCGIS engine编程，先根据点值生成栅格数据，可以输出为JPG\BMP等格式，然后进行渲染、分层着色，生成等值线，根据等值线实现任意点的插值查询-C# and ARCGIS engine programming, the first based on the point value generating raster data can be exported as JPG \ BMP format, and then rendered, layered coloring, gen