炮弹落点位于安全区的判定

针对安全区常为不规则多边形(凸多边形或凹多边形)的现实情况,提出了炮弹弹丸落点位于安全区内或外的判定方法,该方法首先对安全区多边形进行外扩,并削除可能出现的过尖顶角,经过对多边形顶点的凹、凸性判别,再对相迭合的外扩多边形进行并处理,在此基础上执行落点位于安全区内、外的判别,从而从理论上解决了精确规避安全区的问题.

A new method for deducing whether falling point located in secure areas

In light of that the secure areas are general polygons such as convex or concave polygons, a new discrimination method is proposed for deducing whether falling point located in the secure areas, that expands the borders of secure areas firstly, cuts the too acute corners arisen possibly, and discriminates that if the vertexes of the polygons have convex or concave characteristic, then performs combining transaction, so as to deduce whether falling point located in the secure areas. This method solves the problem about accurately eluding the secure areas theoretically.