/// <summary>
/// 用maplex渲染图层注释
/// </summary>
/// <param name="pGeoFeatLyr"></param>
/// <param name="annoField"></param>
public static void annotateLayerMaplexPro(IGeoFeatureLayer pGeoFeatLyr, string annoField)
{
//如果Map没有用Maplex引擎，要先设置Map使用这个引擎
//IAnnotateMap pAnnotateMap;
//pAnnotateMap = new MaplexAnnotateMapClass();
//pMap.AnnotationEngine = pAnnotateMap;
IGeoFeatureLayer pGeoFeatLayer;
pGeoFeatLayer = pGeoFeatLyr;
IAnnotateLayerPropertiesCollection pAnnoProps;
pAnnoProps = pGeoFeatLyr.AnnotationProperties;
pAnnoProps.Clear();
ILabelEngineLayerProperties2 pLabelEngine2 = new MaplexLabelEngineLayerPropertiesClass();
pLabelEngine2.Expression = "[" + annoField + "]";
IMaplexOverposterLayerProperties pMaplexPro = new MaplexOverposterLayerPropertiesClass();
pMaplexPro.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
pMaplexPro.PolygonPlacementMethod = esriMaplexPolygonPlacementMethod.esriMaplexHorizontalInPolygon;
pMaplexPro.CanPlaceLabelOutsidePolygon = false;
pMaplexPro.CanRemoveOverlappingLabel = true;
pMaplexPro.RepeatLabel = false;
pMaplexPro.CanStackLabel = true;
pLabelEngine2.OverposterLayerProperties = pMaplexPro as IOverposterLayerProperties;
//IMapOverposter pMapPos = axMapControl1.Map as IMapOverposter;
//IOverposterProperties pOP = pMapPos.OverposterProperties;
//IMaplexOverposterProperties pMaplexOP = pOP as IMaplexOverposterProperties;
//pMaplexOP.LabelLargestPolygon = false;
pAnnoProps.Add(pLabelEngine2 as IAnnotateLayerProperties);
pGeoFeatLyr.DisplayAnnotation = true;
}
/// <summary>
/// //标注
/// </summary>
/// <param name="pGeoFeatLyr"></param>
/// <param name="pMap"></param>
/// <param name="annoField">字段名称</param>
public static void Annotation(IGeoFeatureLayer pGeoFeatLyr, IMap pMap, string annoField,AxMapControl axMapControl1)
{
IAnnotateMap pAnnoMap=new AnnotateMapClass();
//pAnnoMap = new MaplexAnnotateMapClass();
pMap.AnnotationEngine = pAnnoMap;
IGeoFeatureLayer pGeoFeatLayer;
pGeoFeatLayer = pGeoFeatLyr;
IAnnotateLayerPropertiesCollection pAnnoProps;
pAnnoProps = pGeoFeatLyr.AnnotationProperties;
pAnnoProps.Clear();
ILabelEngineLayerProperties2 pLabelEngine2 = new MaplexLabelEngineLayerPropertiesClass();
pLabelEngine2.Expression = "[" + annoField + "]";
IMaplexOverposterLayerProperties pMaplexPro = new MaplexOverposterLayerPropertiesClass();
pMaplexPro.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
pMaplexPro.PolygonPlacementMethod = esriMaplexPolygonPlacementMethod.esriMaplexHorizontalInPolygon;
pMaplexPro.CanPlaceLabelOutsidePolygon = false;
pMaplexPro.CanRemoveOverlappingLabel = false;
pMaplexPro.RepeatLabel = false;
pLabelEngine2.OverposterLayerProperties = pMaplexPro as IOverposterLayerProperties;
IMapOverposter pMapPos = axMapControl1.Map as IMapOverposter;
IOverposterProperties pOP = pMapPos.OverposterProperties;
IMaplexOverposterProperties pMaplexOP = pOP as IMaplexOverposterProperties;
pMaplexOP.LabelLargestPolygon = false;
pAnnoProps.Add(pLabelEngine2 as IAnnotateLayerProperties);
pGeoFeatLyr.DisplayAnnotation = true;
}
/// <summary>
/// Adds the layer lable.
/// </summary>
/// <param name="pMap">The p map.</param>
/// <param name="layer">The layer.</param>
/// <param name="fieldName">Name of the field.</param>
/// <param name="pTextSymbol">The p text symbol.</param>
/// <param name="dRefScale">The d reference scale.</param>
public static void AddLayerLable(IMap pMap, ILayer layer, string fieldName, ITextSymbol pTextSymbol, double dRefScale)
{
IGeoFeatureLayer geoFeatureLayer = layer as IGeoFeatureLayer;
IAnnotateLayerPropertiesCollection annotationProperties = geoFeatureLayer.AnnotationProperties;
annotationProperties.Clear();
ILineLabelPosition lineLabelPosition = new LineLabelPositionClass
{
Parallel = false,
Perpendicular = false,
InLine = true,
OnTop = true,
Above = false,
Horizontal = true
};
LineLabelPlacementPrioritiesClass lineLabelPlacementPrioritiesClass = new LineLabelPlacementPrioritiesClass();
lineLabelPlacementPrioritiesClass.AboveStart = 5;
lineLabelPlacementPrioritiesClass.BelowAfter = 4;
IBasicOverposterLayerProperties basicOverposterLayerProperties = new BasicOverposterLayerPropertiesClass
{
LineLabelPosition = lineLabelPosition
};
ILabelEngineLayerProperties labelEngineLayerProperties;
if (pMap.AnnotationEngine.Name.Equals("Esri Maplex Label Engine", System.StringComparison.CurrentCultureIgnoreCase))
{
labelEngineLayerProperties = new MaplexLabelEngineLayerPropertiesClass();
IMaplexOverposterLayerProperties maplexOverposterLayerProperties = new MaplexOverposterLayerPropertiesClass();
IFeatureLayer featureLayer = layer as IFeatureLayer;
switch (featureLayer.FeatureClass.ShapeType)
{
case esriGeometryType.esriGeometryPoint:
maplexOverposterLayerProperties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPoint;
maplexOverposterLayerProperties.PointPlacementMethod = esriMaplexPointPlacementMethod.esriMaplexAroundPoint;
break;
case esriGeometryType.esriGeometryPolyline:
maplexOverposterLayerProperties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
maplexOverposterLayerProperties.LinePlacementMethod = esriMaplexLinePlacementMethod.esriMaplexCenteredStraightOnLine;
break;
case esriGeometryType.esriGeometryPolygon:
maplexOverposterLayerProperties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
maplexOverposterLayerProperties.PolygonPlacementMethod = esriMaplexPolygonPlacementMethod.esriMaplexHorizontalInPolygon;
break;
}
maplexOverposterLayerProperties.CanRemoveOverlappingLabel = false;
maplexOverposterLayerProperties.RepeatLabel = false;
(labelEngineLayerProperties as ILabelEngineLayerProperties2).OverposterLayerProperties = (maplexOverposterLayerProperties as IOverposterLayerProperties);
IMapOverposter mapOverposter = pMap as IMapOverposter;
IOverposterProperties overposterProperties = mapOverposter.OverposterProperties;
IMaplexOverposterProperties maplexOverposterProperties = overposterProperties as IMaplexOverposterProperties;
maplexOverposterProperties.LabelLargestPolygon = false;
}
else
{
labelEngineLayerProperties = new LabelEngineLayerPropertiesClass();
labelEngineLayerProperties.BasicOverposterLayerProperties = basicOverposterLayerProperties;
}
labelEngineLayerProperties.Symbol = pTextSymbol;
labelEngineLayerProperties.IsExpressionSimple = true;
labelEngineLayerProperties.Expression = "[" + fieldName + "]";
IAnnotateLayerProperties item = labelEngineLayerProperties as IAnnotateLayerProperties;
if (dRefScale != -1.0)
{
IAnnotateLayerTransformationProperties annotateLayerTransformationProperties = labelEngineLayerProperties as IAnnotateLayerTransformationProperties;
annotateLayerTransformationProperties.ReferenceScale = dRefScale;
}
annotationProperties.Add(item);
geoFeatureLayer.DisplayAnnotation = true;
}