以垂足判断点与多边形的关系

摘要

The paper introduces new judgement method of point and polygon,makes vertical lines through polygon,compares the vertical line length on the pedal edge,seeks the latest edge with the point,and judges the relationship of point and polygon( surface)with the relationship of“directed edge”and the point,with a view to provide some guidance for similar research.%介绍了判断点与平面多边形关系的新方法，通过点向多边形的每条边做垂线，比较垂足在边上的垂线长度，寻找与点最近的边，再以此“有向边”与点的关系判断点与多边形（面）的关系，以供类似研究参考。