摘要
With the help of LBS provided by some social network service provider, people can obtain knowledge and perceive the world around them more conveniently. However, since the contradiction of a large number of POI nodes and the limited displaying space, finding a better layout algorithm to visualize the POI nodes is important for better user experience. This paper presents a new layout algorithm called Virtual Layout algorithm, which can solve the problem of the uneven POI nodes distribution and make a better presentation of the geospatial information. We also deployed a microblog LBS visualization system which consists of Virtual Layout algorithm, stylized map and location reference frame to verify the performance of the proposed algorithm.