AE 添加标注（Label Feature）

最新推荐文章于 2024-12-19 13:17:59 发布

guzicheng1990

最新推荐文章于 2024-12-19 13:17:59 发布

阅读量1.2k

点赞数 1

CC 4.0 BY-SA版权

分类专栏： ArcEngine

本文链接：https://blog.youkuaiyun.com/guzicheng1990/article/details/98724699

ArcEngine 专栏收录该内容

11 篇文章

订阅专栏

本文介绍如何在ArcGIS中为矢量图层添加动态标注，通过设置标注属性，如字体大小、标注字段及位置，实现对特定字段信息的可视化展示。

        private void AddlableTolayer(IFeatureLayer pFeatureLayer, string fieldname//shp中需要标注的字段)
        {
            IGeoFeatureLayer pGeoFeatureLayer = pFeatureLayer as IGeoFeatureLayer;
            pGeoFeatureLayer.DisplayAnnotation = true;//允许标注

IFeatureClass pFeatureClass;
pFeatureClass = pGeoFeatureLayer.FeatureClass;

            //矢量图层标注信息设置
            IAnnotateLayerPropertiesCollection pAnnotateLayerPropertiesCollection;
            pAnnotateLayerPropertiesCollection = pGeoFeatureLayer.AnnotationProperties;
            pAnnotateLayerPropertiesCollection.Clear();

//定义一个矢量图层动态标注显示
IAnnotateLayerProperties pAnnotateLayerProperties;

//定义控制线标注的相对位置
ILineLabelPosition pLineLabelPosition;

            //控制线标注的属性设置
            ILineLabelPlacementPriorities pLineLabelPlacementPriorities;
            IBasicOverposterLayerProperties pBasicOverposterLayerProperties;
            ILabelEngineLayerProperties pLabelEngineLayerProperties;

            pLineLabelPosition = new LineLabelPositionClass();
            pLineLabelPosition.Parallel = false;//标注是否水平
            pLineLabelPosition.Perpendicular = true;//标注是否垂直

            pLineLabelPlacementPriorities = new LineLabelPlacementPrioritiesClass();
            pBasicOverposterLayerProperties = new BasicOverposterLayerPropertiesClass();
            pBasicOverposterLayerProperties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
            pBasicOverposterLayerProperties.LineLabelPlacementPriorities = pLineLabelPlacementPriorities;
            pBasicOverposterLayerProperties.LineLabelPosition = pLineLabelPosition;

            pLabelEngineLayerProperties = new LabelEngineLayerPropertiesClass();
            pLabelEngineLayerProperties.BasicOverposterLayerProperties = pBasicOverposterLayerProperties;
            pLabelEngineLayerProperties.Symbol.Size = 12;//字体大小
            pLabelEngineLayerProperties.Expression = "[" + fieldname + "]";//标注字段

            pAnnotateLayerProperties = pLabelEngineLayerProperties as IAnnotateLayerProperties;
            pAnnotateLayerPropertiesCollection.Add(pAnnotateLayerProperties);
        }