Method for navigation electronic map pretreatment and display
An electronic map and display method technology, applied in the direction of electronic digital data processing, road network navigator, special data processing applications, etc., can solve the problems of unfavorable overall road distribution, narrowing the geographical scope, affecting driving safety, etc., and achieve road improvement The display effect and the effect of reasonable amount of road information
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[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0016] like figure 1 As shown, the navigation electronic map preprocessing and display method of the present invention includes the following steps:
[0017] 1. Set up a navigation electronic map preprocessing and display system including a computer and a navigator. The computer is preset with the navigation electronic map used by the navigator. The electronic map preprocessing results are displayed.
[0018] 2. According to the scale information of the navigation software used by the navigator, according to the order of the size of the scale, the layer index information of all segmentation points under each scale is sequentially generated (such as figure 2 shown), the specific process is:
[0019] 1) Count the number of scales in the navigation software, and sort the scales by size;
[0020] 2) Except for the largest scale, perform steps 3) to 4...
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