MAP INTERACTION METHOD BASED ON DYNAMIC LEGEND

摘要

A map interaction method based on a dynamic legend. The method comprises the following steps: (1) loading a map layer; (2) loading a map rendering configuration file; (3) acquiring a display level of the current map, obtaining, by means of querying the rendering configuration file, a rendering style matching the current level, reading the map rendering configuration file, and respectively triggering a map rendering event and a legend generation event; and (4) clicking a legend icon, screening, according to whether an element legend has been selected, an element category needing to be displayed, screening, from a list that saves all geographic elements, an element needing to be displayed to generate a displayed element list, and reloading the layer to complete fine control of a legend over whether a layer element is displayed or not. According to the map interaction method based on a dynamic legend, a means for dynamically generating a map legend is used, and the generated map legend is in the form of a triggerable button; by means of clicking different types of legends, interaction with a map can be realized; and whether a map element is displayed or not is finely controlled by means of the legend.