Real-time Visualization of 3D City Models Based on CityGML

To solve the problem of real time visualization of 3D city model based on CityGML,a rapid data parsing strategy which combined the streamed reading and data binding techniques was proposed together with a multi-threaded parallel data loading strategy.Moreover,efficient rendering was achieved through reorganizing the model into Direct3D Mesh.The experimental results implemented by using C# and Direct3D under the.Net platform show the effects of the 3D visualization which verify the effectiveness of the proposed methods.