A method and system for issuing GIS-based dynamic traffic information
A traffic information and dynamic technology, applied in the transmission system, special data processing applications, instruments, etc., can solve the problems of large system resource occupation, slow network transmission rate, and heavy server load, so as to improve the efficiency of publishing and reduce the transmission load , Guaranteed real-time effect
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[0084] With reference to Fig. 1, be the flow chart of a kind of GIS-based dynamic traffic information release method of the present invention, comprise the following steps:
[0085] Step 101, the server generates multiple background image files and multiple foreground image files according to the map data;
[0086] Step 102, determine the required background image file and foreground image file;
[0087] Step 103, obtain the required background image file and foreground image file, and superimpose the acquired background image file and foreground image file on the client.
[0088] It should be noted that the core idea of generating the background image file is to segment the map data according to the window size or display requirements, and store the divided images. Preferably, the present invention adopts following method to generate background image file:
[0089] Draw multiple levels of background image files based on map data;
[0090] Setting the size of the unit bac...
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