arcengine 线分割线

本段源码实在之前博主的基础上加以修改的

具体的分割方法见http://blog.csdn.net/hong_taizi/article/details/10161557

本人只在线分割线上做了递归处理线的焦点

        /// <summary>
        /// 线分割线
        /// </summary>
        /// <param name="feature">要素</param>
        /// <param name="point">交点</param>
        /// <param name="newFeatures">要素集，保存分割后的要素</param>
        /// <param name="index">交点集索引</param>
        private void SplitPolylineByLine(IFeature feature, IPoint point, List<IFeature> newFeatures, int index)
        {
            while (pPointCol.PointCount > 0)
            {
                pPointCol.RemovePoints(index, 1);
                IFeatureEdit featEdit = feature as IFeatureEdit;
                ISet pointSet = featEdit.Split(point);
                pointSet.Reset();
                IFeature splitFea = pointSet.Next() as IFeature;
                while (splitFea != null)
                {
                    bool contain = false;
                    for (int i = 0; i < pPointCol.PointCount; i++)
                    {
                        IRelationalOperator relationalOperator = splitFea.Shape as IRelationalOperator;
                        if (relationalOperator.Contains(pPointCol.get_Point(i)))
                        {
                            SplitPolylineByLine(splitFea, pPointCol.get_Point(i), newFeatures, i);
                            contain = true;
                            break;
                        }
                    }
                    if (!contain)
                    {
                        splitFea.Store();
                        newFeatures.Add(splitFea as IFeature);
                    }
                    splitFea = pointSet.Next() as IFeature;
                }
            }
        }

转载自：https://blog.csdn.net/as862214582/article/details/47809143