QUANTITATIVE EVALUATION METHOD OF ELEMENTS PRIORITY OF CARTOGRAPHIC GENERALIZATION BASED ON TAXI TRAJECTORY DATA
- 1Faculty of Information Engineering, China University of Geosciences, 430074 Wuhan, China
- 2College of Resource and Environment, Qinzhou University,535011 Qinzhou, China
Keywords: Cartographic Generalization, Taxi GPS data, Density Analysis, Elements Selection, Quantitative Research
Abstract. Considering the lack of quantitative criteria for the selection of elements in cartographic generalization, this study divided the hotspot areas of passengers into parts at three levels, gave them different weights, and then classified the elements from the different hotspots. On this basis, a method was proposed to quantify the priority of elements selection. Subsequently, the quantitative priority of different cartographic elements was summarized based on this method. In cartographic generalization, the method can be preferred to select the significant elements and discard those that are relatively non-significant.