平面多边形内外点判断方法-planar polygon method of Point

自己开发的，多边形扫描线填充算法，采用橡皮筋模式确定多边形轮廓，经调试通过，此代码效率很高-its own development, filled polygon scan line algorithm, using rubber-band model to determine polygon outline, debugger, this code efficiency

判断点是否在任意多边形之内的c语言程序，可以用在图像处理和其它很多领域-To determine whether at any point within the polygon c language procedure, can be used in image processing and many other areas of