Research of 3D visualization for landform and feature by VTK

摘要

An application study of Visualization Toolkit (VTK) in three dimension terrain visualization is expatiated in this work. The research scope contained matching of digital terrain model with individual building model for 3D terrain visualization, in order to improve the geometric integration of them to optimize the displaying of 3DGIS for construction objects. A tested example in the research was about Grid DEM matching with an individual building model, which had a polygon base surface as constraint conditions to the Grid DEM, for enhancing the efficiency of 3D visualization.