初探GIS Mapxtreme 添加自定义图元 bmp

/// <summary>
/// 添加自定义图元
/// </summary>
/// <param name="dPoint">点坐标</param>
public void AddCustomFeature(DPoint dPoint)
{
TableInfoMemTable tableInfoMemTable = new TableInfoMemTable("temp");
tableInfoMemTable.Columns.Add(ColumnFactory.CreateFeatureGeometryColumn(map.GetDisplayCoordSys()));
tableInfoMemTable.Columns.Add(ColumnFactory.CreateStyleColumn());//样式列
Table table = MapInfo.Engine.Session.Current.Catalog.CreateTable(tableInfoMemTable);
FeatureLayer featureLayer = new FeatureLayer(table);
map.Layers.Add(featureLayer);

FeatureGeometry featureGeometry = new MapInfo.Geometry.Point(featureLayer.CoordSys, dPoint);
BitmapPointStyle bitmapPointStyle = new BitmapPointStyle("chinaz2.BMP", BitmapStyles.None, new System.Drawing.Color(), 25);
CompositeStyle compositeStyle = new CompositeStyle(bitmapPointStyle);

Feature feature = new Feature(featureLayer.Table.TableInfo.Columns);
feature.Geometry = featureGeometry;
feature.Style = compositeStyle;

featureLayer.Table.InsertFeature(feature);
}