添加已加载shp文件的字段值转为List<Point>

最新推荐文章于 2025-05-22 20:46:40 发布

原创最新推荐文章于 2025-05-22 20:46:40 发布 · 304 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#字段值

C# 专栏收录该内容

32 篇文章

订阅专栏

博客展示了一段代码，定义了AddfieldsValueToPointD方法，用于将字段值添加到PointD列表中。通过获取图层、要素类、字段等信息，遍历要素并提取坐标和名称，存储到PointD对象中，最后返回PointD列表。还定义了PointD结构体。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

        public List<PointD> AddfieldsValueToPointD(int layerNum)
        {
            List<PointD> points = new List<PointD>();
            ILayer layer = null;
            layer = axMapControl1.Map.get_Layer(layerNum);
            IFeatureLayer featureLayer = layer as IFeatureLayer;
            IFeatureClass featureclass = featureLayer.FeatureClass;
            IFields fields = featureclass.Fields;
            IFeatureCursor pFeatureCursor;
            pFeatureCursor = featureLayer.FeatureClass.Search(null, false);
            IFeature pFeature= pFeatureCursor.NextFeature();
            int pointNameIndex = pFeature.Fields.FindField("pointName");
            int YIndex = pFeature.Fields.FindField("Y");
            int XIndex = pFeature.Fields.FindField("X");
            while (pFeature != null)
            {
                PointD point = new PointD();

                point.pointName = pFeature.get_Value(pointNameIndex).ToString();
                point.X = Convert.ToDouble(pFeature.get_Value(XIndex).ToString());
                point.Y = Convert.ToDouble(pFeature.get_Value(YIndex).ToString());
                points.Add(point);
                pFeature = pFeatureCursor.NextFeature();
            }
            return points;
        }