先作个更正,上贴中then back to D应为then back to B。
以A为圆心,AB为半径作圆弧,并从A作BE的垂线,若道路恰通过圆弧与垂线的交点,则折线AEB连同以后的路径无法达到该道路。
先作个更正,上贴中then back to D应为then back to B。
以A为圆心,AB为半径作圆弧,并从A作BE的垂线,若道路恰通过圆弧与垂线的交点,则折线AEB连同以后的路径无法达到该道路。
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