Quick self-adaptive layout method for map legend
A layout method and self-adaptive technology, applied to maps/plans/charts, instruments, educational tools, etc., can solve problems such as unreachable and drawing needs, improve work efficiency, reduce manual intervention, and reduce man-machine The effect of interaction
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[0037]The first step is to divide the potential legend placement positions according to the spatial area of the administrative area and the geographical range of map printing, and assign weight coefficients to each position: the potential legend placement positions can be divided into four positions: the upper left corner, the upper right corner, the lower left corner and the lower right corner [ as attached figure 2 Shown], wherein the weight coefficient of the lower left corner is 1.0, the weight coefficient of the lower right corner is 0.95, the weight coefficient of the upper left corner is 0.85, and the weight coefficient of the upper right corner is 0.80.
[0038] The second step is to initialize the evaluation rectangle with the specified size and aspect ratio: the specified size means that the perimeter of the generated evaluation rectangle is 1 / 16 of the perimeter of the geographical area printed on the map; the value range of the specified aspect ratio is 5.0, 3.0,...
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