The complexity of geological conditions and the occlusion of 3D streamlines reduce the readability of the streamline charts. After discussing the constructing process of streamlines, we narrow down the problem to placement of initial particles. Considering the geological properties of groundwater flow and the local placement method, we propose the principle for global placement, which was checked based on the hydrogeological conditions of Yingjun No. 1 Mine of Shanghaimiao mining area in Etuokeqian Banner, Inner Mongolia. The obtained streamline charts clearly represent the groundwater flow and uncover the control action of a window. The results demonstrate the rationality and validity of the global principle and provide visual and scientific data for mine water research and management decision.

flow visualization  /  streamlines placement  /  flow feature point