using HiMap.Carto;

      using HiMap.Driver;

    //Define a map object

     Map _map;

     private void Form1_Load(object sender, EventArgs e)

     {

     _map = new Map("test");

     mapControl1.Map = _map;

     // This Xml file is map drawing file

     mapControl1.Map.FromKmd("\\Storage Card\\nyc.xml");

     mapControl1.MapRefresh();

     HiMap.MapControls.Tools.ITool pTool = new HiMap.MapControls.Tools.ToolPan();

     pTool.OnCreate(this.mapControl1);

     this.mapControl1.CurTool = pTool;

     }

     double dMapX = 123.4000;

     double dMapY = 40.3200;

     //Map coordinates point to convert the screen coordinates of points

     System.Drawing.Point screenPoint = mapControl1.MapToScreen(dMapX, dMapY);


     //Display the results

     MessageBox.Show("Screen x:" + screenPoint.X.ToString() + "\r\n" + "Screen y:" +

     screenPoint.

     Y.ToString());

     //Defining the screen coordinates of points

     int iScreenX = 100;

     int iScreenY = 200;

     //Conversion from screen coordinates to map coordinates

     IPoint mapPoint = mapControl1.PointToMapPoint(iScreenX, iScreenY);

     //Display the results

     MessageBox.Show("map x:"+ mapPoint.X.ToString() + "\r\n" + "map y:" + mapPoint.Y.

      ToString());

    //Define a Brush object

    Brush brush = new SolidBrush(Color.Yellow);

    //Defined Pen, color and size

    Pen pen = new Pen(Color.Blue, 2);

    //Plot points

    mapControl.DrawPoint(pen, brush, 123.111, 41.111, 2);

     //Define a rectangle Rectangle

      Rectangle rectangle = new Rectangle(10, 20, 5, 5);

      //Plot points

      mapControl.DrawPoint(new Pen(Color.Red), new SolidBrush(Color.Blue), rectangle);

      //Defined Pen

      Pen pen = new Pen(Color.Blue, 2);

      //Define some point in screen coordinates

      Point[] arrPoint = new Point[5];

      arrPoint[0].X = 40;

      arrPoint[0].Y = 30;

      arrPoint[1].X = 100;

      arrPoint[1].Y = 30;

      arrPoint[2].X = 120;

      arrPoint[2].Y = 80;

      arrPoint[3].X = 50;

      arrPoint[3].Y = 70;

      arrPoint[4].X = 40;

      arrPoint[4].Y = 90;

      //Drawing lines

      mapControl.DrawLine(pen, arrPoint);

     public void DrawLine(Pen pen, Point[] pts);

     public void DrawLine(Pen pen, IPoint[] pts);

     public void DrawLine(Pen pen, Point pt1, Point pt2);

     //Defined Pen

     Pen pen = new Pen(Color.Blue, 2);

     //Defined Brush

     Brush brush = new SolidBrush(Color.Yellow);

     //Polygon defined screen coordinates of points

     Point[] arrPoint = new Point[4];

     arrPoint[0].X = 40;

     arrPoint[0].Y = 30;

     arrPoint[1].X = 100;

     arrPoint[1].Y = 30;

     arrPoint[2].X = 120;

     arrPoint[2].Y = 80;

     arrPoint[3].X = 50;

     arrPoint[3].Y = 70;

     //Draw a polygon

     mapControl.DrawPolygon(pen,brush,arrPoint);

     //Defined Pen

     Pen pen = new Pen(Color.Blue, 2);

     //Draw ellipse

     mapControl.DrawEllipse(pen, new Rectangle(30, 40, 120, 125));

     public void DrawEllipse(Pen pen, Rectangle rect);

     public void DrawEllipse(Pen pen, int x, int y, int width, int height);

    IFeature ift = null;

    IFeatureCursor ifc;

    IFeatureClass cls;

    //Define the query field

    string strSearchField = "";

    //The value of the definition query

    string strQueryValue = "PAL";

    string strQueryResult = "";

    for (int i = 0; i < this._mapControl.Map.LayerCount; i++)

    {

    IFeatureLayer featureLayer = (IFeatureLayer)this._mapControl.Map.GetLayer(i);

    switch (featureLayer.GeometryType)

    {

    case GeometryType.Polyline:

    strSearchField = "HWYNAME";

    break;

    case GeometryType.Polygon:

    strSearchField = "NAME";

    break;

    case GeometryType.Point:

    strSearchField = "ObjectID";

    break;

    default:

    strSearchField = "ObjectID";

    break;

    }

    // get a data

    cls = (HiMap.Carto.IFeatureClass)featureLayer.Class;

    //Fuzzy query, the query "HWYNAME" field [char data type] contains 'PAL%' value

    string strTemp = strSearchField + " like '" + strQueryValue + "%'";

    //Query data

    ifc = CSearch.GetFeatureCursor(_mapControl, i, strTemp);

    //Navigate to the data

    ift = ifc.Next();

    if (ift != null)

    {

    while (ift != null)

    {

    strQueryResult += ift.GetValue(cls.Fields.FindField(strSearchField)).ToString();

    strQueryResult += "\r\n";

    ift = ifc.Next();

    }

    }

    }

    MessageBox.Show(strQueryResult);

   //Subfunction, query a data pointer

   //Query a data pointer

   public static IFeatureCursor GetFeatureCursor(HiMap.MapControls.MapControl map, int

   varIndex, string condition)

   {

   //Layer object

   IFeatureLayer lyr = (IFeatureLayer)map.Map.GetLayer(varIndex);

   IFeatureClass fcls = (IFeatureClass)lyr.Class;

   //Create a query filter

   IQueryFilter qf = new QueryFilterClass();

   //Set the search criteria

   qf.WhereClause = new StringBuilder(condition);

   //Inquiry

   IFeatureCursor cur = fcls.Search(qf);

   //Returns a pointer

   return cur;

   }

       using System;

       using System.Collections.Generic;

       using System.Text;

       using HiMap.Carto;

       using HiMap.Driver;

       using HiMap.Geometry;

       using HiMap.MapControls;

       using HiMap.MapControls.Tools;

       using HiMap.Style;

       using System.Windows.Forms;

       namespace NaviSoftHiMap

       {

      public class ToolInfoClass : HiMap.MapControls.Tools.ToolClass

       {

       //Rewrite events

       protected override void OnMouseDown(object sender, System.Windows.Forms.

       MouseEventArgse)

       {

      //Create a space query object

       HiMap.Carto.ISpatialFilter sf = new HiMap.Carto.SpatialFilterClass();

      //Set the query conditions (range)

      sf.Buffer = double.Parse(Settings.POISearchRadius);

       sf.QType = QueryType.Pixel;

       IPoint point = new PointClass();

       point.X = e.X;

       point.Y = e.Y;

       //Set the center point of the query

       sf.Geometry = point;

       //Define the data set

       HiMap.Carto.IFeatureClass cls;

       //Defined data pointer

       HiMap.Carto.IFeatureCursor fc;

       FormList frmList = new FormList();

       //Cycle Layer

       for (int i = 0; i < this.Map.Map.LayerCount; i++)

       {

       //Get all the data

       cls = (HiMap.Carto.IFeatureClass)this.Map.Map.GetLayer(i).Class;

       //Search data

       fc = cls.Search(sf);

       //Buffered data

       fc.Flush();

       //Get The data in the query

       HiMap.Carto.IFeature feat = fc.Next();

       while (feat != null)

       {

       //Show ID field

       //System.Windows.Forms.MessageBox.Show("Name: " + feat.GetValue(cls.Fields.

       FindField(Settings.POISearchField)));

       if (feat.Shape.Type == GeometryType.Polyline)

       {

       frmList.listViewPOIs.Items.Add(new ListViewItem(new string[]

      {

       feat.GetValue(cls.Fields.FindField(Settings.POISearchField)).ToString(),

       ((IPolyline)feat.Shape).GetPoint(0).X.ToString(),

       ((IPolyline)feat.Shape).GetPoint(0).Y.ToString()

       }

       ));

       }

       //Go to the next data

       feat = fc.Next();

       }

       }

       frmList.ShowDialog();

       }

       }

       }

      if (_mapControl != null)

       {

       ITool toolInfo = new ToolInfoClass();

       toolInfo.OnCreate(this._mapControl);

       this._mapControl.CurTool = toolInfo;

       }

         //1.Load point layer, and allows editing("edit=true")

        IDataFactory pDataFactory = new ShapeDataFactory("\\Storage Card\\");

        //Need to use the "edit = true" parameter

        IFeatureClass pFeatureClassTemp = (IFeatureClass)pDataFactory.Open("point_

           empty .shp ", true);

        IFeatureLayer pFeatureLayerTemp = new FeatureLayerClass(pFeatureClassTemp);

        mapControl1.Map.AddLayer(pFeatureLayerTemp);

        //2.Batch add points

        //Add the points to the shape layers

        //Use GetLayer (0) to obtain the layer you want to edit

        IFeatureLayer pFeatureLayer = (IFeatureLayer)this.mapControl1.Map.GetLayer(0);

        //Get FeatureClass

        IFeatureClass pFeatureClass = (IFeatureClass)pFeatureLayer.Class;

        //Start editing

        pFeatureClass.BeginEdit();

        //Batch add points

        for (int i = 0; i < 5; i++)

        {

         //create Figure dollars (Feature)

         IFeature pFeature = pFeatureClass.CreateFeature();

         //Set the value of the first field id integer type "System.DateTime.Now.Ticks";

         pFeature.SetValue(0, System.DateTime.Now.Ticks);

         //Set the second field name the value string types System. DateTime. Now.Ticks.

         ToString ()

         pFeature.SetValue(1, System.DateTime.Now.Ticks.ToString());

         //Value of string type setting third field remark "System.DateTime.Now.ToString ()"

         pFeature.SetValue(2, System.DateTime.Now.ToString());

         //Generate a point object

         IPoint pPoint = new HiMap.Geometry.PointClass();

         //Set the longitude and latitude

         pPoint.X = 122.3456;

         pPoint.Y = 43.2324;

         //set Graphics, assign its point object

         pFeature.Shape = pPoint;

         //Save metafile

         pFeature.Save();

         //Pause for one second

        Thread.Sleep(1000);

         }

        //Unified Save

         pFeatureClass.SaveEdit();

        IFeature feature = null;

        IFeatureCursor featureCursor;

        IFeatureClass featureClass;

        for (int i = 0; i < this.mapControl1.Map.LayerCount; i++)

        {

        IFeatureLayer featureLayer = (IFeatureLayer)this.mapControl1.Map.GetLayer(i);

        // get featureClass

        featureClass = (HiMap.Carto.IFeatureClass)featureLayer.Class;

        //Query data

        IQueryFilter queryFilter = new QueryFilterClass();

        //Set the search criteria

        queryFilter.WhereClause = new StringBuilder("Id = 1");

        featureCursor = featureClass.Search(queryFilter);

        //Navigate to the query to the diagram elements

        feature = featureCursor.Next();

        if (feature != null)

        

        //Open the Edit

        featureClass.BeginEdit();

        featureClass.DeleteFeature(feature);

        //Finish editing and save results

        featureClass.SaveEdit();

        }

        }

      //Get the layer you want to edit

      IFeatureLayer pFeatureLayer = (IFeatureLayer)mapControl1.Map.GetLayer(0);

      //定义FeatureClass

      IFeatureClass pFeatureClass = (IFeatureClass)pFeatureLayer.Class;

      //Open the Edit

      pFeatureClass.BeginEdit();

      //Create a query object

      IQueryFilter pQueryFilter=new QueryFilterClass();

      //Set the search criteria

      pQueryFilter.WhereClause=new StringBuilder("Id = 1");

      //Query data

       IFeatureCursor pFeatureCursor = pFeatureClass.Search(pQueryFilter);

       //get Metadata

      IFeature pFeature = pFeatureCursor.Next();

      if (pFeature != null)

      {

      //Modify property value

      pFeature.SetValue(pFeatureClass.Fields.FindField("Name"), "test value");

      //Save

      pFeature.Save();

      }

      //Finish editing,Batch saved

       pFeatureClass.SaveEdit();

       //Get To modify elements where layers

      IFeatureLayer pFeatureLayer = (IFeatureLayer)mapControl1.Map.GetLayer(0);

      //Create FeatureClass

      IFeatureClass pFeatureClass = (IFeatureClass)pFeatureLayer.Class;

      //Open the Edit

      pFeatureClass.BeginEdit();

      //Create querier

      IQueryFilter pQueryFilter=new QueryFilterClass();

      //Set the search criteria

      pQueryFilter.WhereClause=new StringBuilder("Id = 1");

      //Query data

      IFeatureCursor pFeatureCursor = pFeatureClass.Search(pQueryFilter);

      //Get to query the data

      IFeature pFeature = pFeatureCursor.Next();

      if (pFeature != null)

      {

      //So use IPolygon interface to get the graphics layer type for the polyline

      HiMap.Geometry.IPolyline polyline = (HiMap.Geometry.IPolyline)pFeature.Shape;

      IPointCollection pPointCollection = (IPointCollection)polyline;

      //Analog data to create some points

      IPoint pPoint1 = new PointClass();

      pPoint1.X = "111.2345556";

      pPoint1.Y = "23.2345556";

      IPoint pPoint2 = new PointClass();

      pPoint2.X = "112.2345556";

      pPoint2.Y = "23.3345556";

      //Add points to segment

      pPointCollection.AddPoint(pPoint1);

      pPointCollection.AddPoint(pPoint2);

      //To set new graphics element you want to modify

      pFeature.Shape = (IGeometry)polyline;

      //Save

      pFeature.Save();

      }

      //finish Editing, batch saved

      pFeatureClass.SaveEdit();

      //Layer you want to edit

      IFeatureLayer pFeatureLayer = (IFeatureLayer)mapControl1.Map.GetLayer(0);

      IFeatureClass pFeatureClass = (IFeatureClass)pFeatureLayer.Class;

      //Open the Edit

      pFeatureClass.BeginEdit();

      //Create querier

      IQueryFilter pQueryFilter=new QueryFilterClass();

      //Set the search criteria

      pQueryFilter.WhereClause=new StringBuilder("Id = 1");

      //Query data

      IFeatureCursor pFeatureCursor = pFeatureClass.Search(pQueryFilter);

      //Query metadata

      IFeature pFeature = pFeatureCursor.Next();

      if (pFeature != null)

      {

      //So Use IPolygon interface to get the graphics layer type for the polyline

      HiMap.Geometry.IPolyline polyline = (HiMap.Geometry.IPolyline)pFeature.Shape;

      //Create a new line segment

      IPointCollection pPointCollection = new PolylineClass();

      //Using test data to create some points

      IPoint pPoint1 = new PointClass();

      pPoint1.X = "111.2345556";

       pPoint1.Y = "23.2345556";

      IPoint pPoint2 = new PointClass();

      pPoint2.X = "112.2345556";

      pPoint2.Y = "23.3345556";

      //Points are added to the new segment

      pPointCollection.AddPoint(pPoint1);

      pPointCollection.AddPoint(pPoint2);

      HiMap.Geometry.IGeometryCollection pGeometryCollection =

      (HiMap.Geometry.IGeometryCollection)polyline;

      //New segment is added to the original polygon

      pGeometryCollection.AddGeometry((IGeometry)pPointCollection);

      //New graphics for the element you want to change settings

      pFeature.Shape = (IGeometry)polyline;

      //Save this graph

      pFeature.Save();

      }

      //finish editing, batch save

      pFeatureClass.SaveEdit();

       //Defining Data Engineering, pointing to a layer file

       HiMap.Driver.IDataFactory pDataFactory =

                                    new HiMap.Driver.Shape.ShapeDataFactory("\\Storage Card\\maps\\");

       //If MapControl control does not contain any Map object, create a Map object

       if (mapControl1.Map == null)

       {

       HiMap.Carto.Map map = new HiMap.Carto.Map("test");

       mapControl1.Map = map;

      }

       HiMap.Carto.IFeatureClass pFeatureClass =

                                     (HiMap.Carto.IFeatureClass)pDataFactory.Open("one.shp",true);

       HiMap.Carto.IFeatureLayer pFeatureLayer =

                                      new HiMap.Carto.FeatureLayerClass(pFeatureClass);

       mapControl1.Map.AddLayer(pFeatureLayer);

       mapControl1.MapRefresh();

       Map map = new Map("test");

      mapControl1.Map = map;

      mapControl1.FromKmd(@"\Storage Card\maps\maps.xml")

       Map map = this._mapControl.Map;

       for (int i = map.LayerCount - 1; i >= 0; i--)

       {

       if (map.GetLayer(i).Name == "traceline" || map.GetLayer(i).Name

                                                      == "tracepoint1" || map.GetLayer(i).Name == "tracepoint2")

       {

       map.RemoveAtLayer(i);

       }

       }

       List fields = new List();

       MemoryFeatureClassField mfcf = new MemoryFeatureClassField();

       mfcf.FieldName = "id";

       mfcf.FieldType = MemoryFeatureClassFieldType.Int;

       mfcf.FieldLength = 4;

       mfcf.FieldDecimals = 0;

       fields.Add(mfcf);

       mfcf = new MemoryFeatureClassField();

       mfcf.FieldName = "name";

       mfcf.FieldType = MemoryFeatureClassFieldType.String;

       mfcf.FieldLength = 50;

      mfcf.FieldDecimals = 0;

       fields.Add(mfcf);

       //Creating dynamic layers

       IFeatureClass lineclass = new MemoryFeatureClassClass("traceline", 10,

                GeometryType.Polyline, fields);

       IFeatureLayer layer = new FeatureLayerClass(lineclass);

       //layer.FeatureLayerAuto = true;

       map.AddLayer(layer);

       IFeatureLayerSimpleRender Render =

                                                 new HiMap.Carto.Render.FeatureLayerSimpleRenderClass();

       Render.PolylineStyle.SetLineSymbolWidth(0, 3);

       Render.PolylineStyle.SetLineSymbolColor(0, Color.Red);

       layer.Render = Render;

       //analog track the route

       IPolyline line = new PolylineClass();

       //analog track the point

       IPoint pnt;

       //Point 1

       pnt = new PointClass();

       pnt.X = -74.0467566;

       pnt.Y = 40.83343789;

       line.AddPoint(pnt);

       //Point 2

       pnt = new PointClass();

       pnt.X = -74.0506850;

      pnt.Y = 40.78891604;

      line.AddPoint(pnt);

      //Point 3

       pnt = new PointClass();

       pnt.X = -74.0279483;

       pnt.Y = 40.79415390;

       line.AddPoint(pnt);

       //Point 4

       pnt = new PointClass();

       pnt.X = -73.9837232;

       pnt.Y = 40.78171397;

       line.AddPoint(pnt);

       IFeature ft = lineclass.CreateFeature();

       ft.SetValue(0, 1);

       ft.SetValue(1, "track");

       ft.Shape = line;

       ft.Save();

       //Create temporary points"Orgin"

       IFeatureClass pointclass =

                   new MemoryFeatureClassClass("tracepoint1", 1, GeometryType.Point, fields);

       IFeatureLayer layer1 = new FeatureLayerClass(pointclass);

       map.AddLayer(layer1);

       IFeatureLayerSimpleRender simplerender =

      (IFeatureLayerSimpleRender)layer1.Render;

       simplerender.PointStyle.SetSymbol(0, new PointSymbolBmpClass(new StringBuilder

                    ("\\Storage Card\\BmpStyle\\101.bmp")));

       layer1.LableFieldIndex = 1;

      pointclass.BeginEdit();

       ft = pointclass.CreateFeature();

       ft.SetValue(0, "0");

       ft.SetValue(1, "Origin");

       ft.Shape = line.GetPoint(0);

       ft.Save();

       pointclass.SaveEdit();

       //Create temporary points"Destination"

       IFeatureClass pointclass2 =

       new MemoryFeatureClassClass("tracepoint2", 1, GeometryType.Point, fields);

       IFeatureLayer layer2 = new FeatureLayerClass(pointclass2);

       //layer.FeatureLayerAuto = true;

       map.AddLayer(layer2);

       simplerender = (IFeatureLayerSimpleRender)layer2.Render;

       simplerender.PointStyle.SetSymbol(0, new PointSymbolBmpClass

            (new StringBuilder("\\Storage Card\\BmpStyle\\102.bmp")));

       layer2.LableFieldIndex = 1;

       pointclass2.BeginEdit();

       IFeature ftPoint2 = pointclass2.CreateFeature();

       ftPoint2.SetValue(0, "0");

       ftPoint2.SetValue(1, "Destination");

       ftPoint2.Shape = line.GetPoint(line.PointCount - 1);

       ftPoint2.Save();

       pointclass2.SaveEdit();

       double xMin = 0, yMin = 0, xMax = 0, yMax = 0;

       for (int i = 0; i < line.PointCount; i++)

      {

       IPoint p = line.GetPoint(i);

       if (i == 0)

       {

       xMin = p.X;

       yMin = p.Y;

       xMax = p.X;

       yMax = p.Y;

       }

       else

       {

       if (p.X < xMin)

       xMin = p.X;

       if (p.X > xMax)

       xMax = p.X;

       if (p.Y < yMin)

       yMin = p.Y;

       if (p.Y > yMax)

       yMax = p.Y;

       }

       }

       IPoint pt = new PointClass();

       pt.X = (xMax + xMin) / 2;

       pt.Y = (yMax + yMin) / 2;

       double scale = 0;

      if (Math.Abs(xMax - xMin) > Math.Abs(yMax - yMin))

       {

       scale = (xMax - xMin) / (this._mapControl.Map.Envelope.MaxX - this._mapControl.

              Map.Envelope.MinX) * 1.5;

       }

       else

       {

       scale = (yMax - yMin) / (this._mapControl.Map.Envelope.MaxY

         - this._mapControl.Map.Envelope.MinY) * 1.5;

      }

      this._mapControl.Map.CenterAt = pt;

      this._mapControl.Map.MapScale = this._mapControl.Map.MapScale * scale;

      this._mapControl.MapRefresh();

                 use .NET code to display the different styles in the same layer。

       for (int i = 0; i < this._mapControl.Map.LayerCount; i++)

      {

      if (this._mapControl.Map.GetLayer(i).Caption.ToLower() == "nyc_mainroads")

      {

      IFeatureLayer lyr = (IFeatureLayer)this._mapControl.Map.GetLayer(i);

      IFeatureLayerGroupRender Render =

         new HiMap.Carto.Render.FeatureLayerGroupRenderClass(lyr, "HWYNAME");

      Render.DefaultPolylineStyle = new HiMap.Carto.PolylineStyleClass(1);

      Render.AddGroupValue(new StringBuilder("CONVENT AVE"));

      Render.AddGroupValue(new StringBuilder("ADAM CLAYTON POWELL JR BLVD"));

      IPolylineStyle LineStyle = new HiMap.Carto.PolylineStyleClass(1);

      LineStyle.SetLineSymbolColor(1, Color.FromArgb(255, 0, 0));

      LineStyle.SetLineSymbolWidth(1, 10);

      Render.SetPolylineStyle(new StringBuilder("CONVENT AVE"), LineStyle);

      LineStyle = new HiMap.Carto.PolylineStyleClass(1);

      LineStyle.SetLineSymbolColor(1, Color.FromArgb(0, 0, 255));

      LineStyle.SetLineSymbolWidth(1, 5);

      Render.SetPolylineStyle(new StringBuilder("ADAM CLAYTON POWELL JR BLVD"),

          LineStyle);

      IFeatureClass fclass = (IFeatureClass)lyr.Class;

      IQueryFilter qf = new QueryFilterClass();

      qf.WhereClause = new StringBuilder("HWYNAME =

           'CONVENT AVE' or HWYNAME = 'ADAM CLAYTON POWELL JR BLVD'");

      IFeatureCursor fcurosr = fclass.Search(qf);

      IFeature feature = fcurosr.Next();

      IEnvelope envlope = new EnvelopeClass();

      while (feature != null)

      {

      if (feature.Shape.Type == GeometryType.Polyline)

      {

      IPolyline polyline = (IPolyline)feature.Shape;

      this._mapControl.Map.CenterAt = polyline.GetPoint(0);

      break;

      }

      }

      lyr.Render = Render;

      this._mapControl.MapRefresh();

      break;

      }

      }

       for (int i = 0; i < this.mapControl1.Map.LayerCount; i++)

       {

       if (this.mapControl1.Map.GetLayer(i).Caption.ToLower() == "nyc_mainroads")

       {

       IFeatureLayer lyr = (IFeatureLayer)this.mapControl1.Map.GetLayer(i);

       //Set the font size to 16 pixels

       lyr.LabelFontSize = 16;

       //Do not display duplicate labels

       lyr.FeatureLayerIsAllowSameLabel = false;

       break; ;

       }

       }

      //Refresh Map

      mapControl1.MapRefresh();

       for (int i = 0; i < this.mapControl1.Map.LayerCount; i++)

       {

       if (this.mapControl1.Map.GetLayer(i).Caption.ToLower() == "nyc_mainroads")

       {

       IFeatureLayer lyr = (IFeatureLayer)this.mapControl1.Map.GetLayer(i);

       //Do not repeat marked

       lyr.FeatureLayerIsAllowSameLabel = false;

       //Set marked priority 1

       lyr.LabelLevel = 1;

       break;

       }

       }

      //Refresh Map

      mapControl1.MapRefresh();

       for (int i = 0; i < this.mapControl1.Map.LayerCount; i++)

      {

       if (this.mapControl1.Map.GetLayer(i).Caption.ToLower() == "nyc_mainroads")

       {

       IFeatureLayer lyr = (IFeatureLayer)this.mapControl1.Map.GetLayer(i);

       //Do not repeat marked

       lyr.FeatureLayerIsAllowSameLabel = false;

       //The set marked permutations style as "LabelArrangementType.Along";

       lyr.LabelArrangementType = LabelArrangementType.Along;

       break;

       }

       }

      //Refresh Map

      mapControl1.MapRefresh();

       for (int i = 0; i < this.mapControl1.Map.LayerCount; i++)

      {

      if (this.mapControl1.Map.GetLayer(i).Caption.ToLower() == "nyc_pois")

      {

      //Find Layers

      IFeatureLayer lyr = (IFeatureLayer)this.mapControl1.Map.GetLayer(i);

      //lyr.Render.ToSimpleRender();

      //Set the picture marks

      HiMap.Carto.Render.IFeatureLayerSimpleRender render =

                new HiMap.Carto.Render.FeatureLayerSimpleRenderClass();

      render.PointStyle.SetSymbol(0, new PointSymbolBmpClass

               (new StringBuilder("\\Storage Card\\BmpStyle\\101.bmp")));

      lyr.Render = render;

      this.mapControl1.MapRefresh();

      break;

      }

      }

      for (int i = 0; i < this.mapControl1.Map.LayerCount; i++)

      {

      //Find layers

      if (this.mapControl1.Map.GetLayer(i).Caption.ToLower() == "nyc_mainroads")

       {

       IFeatureLayer lyr = (IFeatureLayer)this.mapControl1.Map.GetLayer(i);

       //Set the line style

       HiMap.Carto.Render.IFeatureLayerSimpleRender Render =

                      (HiMap.Carto.Render.IFeatureLayerSimpleRender)lyr.Render;

      //Change the line style 0 style 4 pixel

       Render.PolylineStyle.SetLineSymbolWidth(0, 4);

      //Change the line style 0 style in blue

       Render.PolylineStyle.SetLineSymbolColor(0, Color.Blue);

       mapControl1.MapRefresh();

       break;

       }

       }

         //Redraw the display area

       mapControl1.MapRefresh();

      //Create a point

      IPoint pPoint = new PointClass();

      pPoint.X = "111.2345556";

      pPoint.Y = "23.2345556";

      //Set the center of the map to the point

      mapControl.Map.CenterAt = pPoint;

      //Refresh Map

      mapControl.MapRefresh();

      //Defined area

      IEnvelope pEnvelope = new EnvelopeClass();

      pEnvelope.MinX = 123.38160821744314;

      pEnvelope.MaxX = 123.41495323446499;

      pEnvelope.MinY = 41.798595643189344;

      pEnvelope.MaxY = 41.835755556226417;

      //Set the map display area

      mapControl.Map.Envelope = pEnvelope;

      //Refresh Map

      mapControl.MapRefresh();

        Map map = this._mapControl.Map;

       for (int i = map.LayerCount - 1; i >= 0; i--)

       {

       if (map.GetLayer(i).Name == "traceline" || map.GetLayer(i).Name

                                               == "tracepoint1" || map.GetLayer(i).Name == "tracepoint2")

       {

       map.RemoveAtLayer(i);

       }

       }

       List fields = new List();

       MemoryFeatureClassField mfcf = new MemoryFeatureClassField();

       mfcf.FieldName = "id";

       mfcf.FieldType = MemoryFeatureClassFieldType.Int;

       mfcf.FieldLength = 4;

       mfcf.FieldDecimals = 0;

       fields.Add(mfcf);

       mfcf = new MemoryFeatureClassField();

       mfcf.FieldName = "name";

       mfcf.FieldType = MemoryFeatureClassFieldType.String;

       mfcf.FieldLength = 50;

       mfcf.FieldDecimals = 0;

       fields.Add(mfcf);

       //Creating dynamic layers

       IFeatureClass lineclass = new MemoryFeatureClassClass("traceline",

            10, GeometryType.Polyline, fields);

       IFeatureLayer layer = new FeatureLayerClass(lineclass);

       //layer.FeatureLayerAuto = true;

      IFeatureLayerSimpleRender Render = map.AddLayer(layer);

      Render.PolylineStyle.SetLineSymbolWidth(0, 3);

      Render.PolylineStyle.SetLineSymbolColor(0, Color.Red);

      layer.Render = Render;

      //analog track the route

      IPolyline line = new PolylineClass();

      //analog track the point

      IPoint pnt;

      //point 1

      pnt = new PointClass();

      pnt.X = -74.0467566;

      pnt.Y = 40.83343789;

      line.AddPoint(pnt);

      //point 2

      pnt = new PointClass();

      pnt.X = -74.0506850;

      pnt.Y = 40.78891604;

      line.AddPoint(pnt);

      //point 3

      pnt = new PointClass();

      pnt.X = -74.0279483;

      pnt.Y = 40.79415390;

      line.AddPoint(pnt);

      //point 4

      pnt = new PointClass();

      pnt.X = -73.9837232;

      pnt.Y = 40.78171397;

      line.AddPoint(pnt);

      IFeature ft = lineclass.CreateFeature();

      ft.SetValue(0, 1);

      ft.SetValue(1, "track

      ft.Shape = line;

       ft.Save();

       //Create temporary points"Orgin"

       IFeatureClass pointclass =

      new MemoryFeatureClassClass("tracepoint1", 1, GeometryType.Point, fields);

      IFeatureLayer layer1 = new FeatureLayerClass(pointclass);

      map.AddLayer(layer1);

      IFeatureLayerSimpleRender M simplerender

              = (IFeatureLayerSimpleRender)layer1.Render

;       simplerender.PointStyle.SetSymbol(0, new PointSymbolB

            mpClass(new StringBuilder("\\Storage Card\\BmpStyle\\101.bmp")));

      layer1.LableFieldIndex = 1;

      pointclass.BeginEdit();

      ft = pointclass.CreateFeature();

      ft.SetValue(0, "0")

      ft.SetValue(1, "Origin");

      ft.Shape = line.GetPoint(0);

      ft.Save();

      pointclass.SaveEdit();

       //Create temporary points"Destination"

      IFeatureClass pointclass2 = new MemoryFeatureClassClass

             ("tracepoint2", 1, GeometryType.Point, fields);

      IFeatureLayer layer2 = new FeatureLayerClass(pointclass2);

      //layer.FeatureLayerAuto = true;

       map.AddLayer(layer2);

      simplerender = (IFeatureLayerSimpleRender)layer2.Render;

      simplerender.PointStyle.SetSymbol(0, new PointSymbolBmpClass

                              (new StringBuilder("\\Storage Card\\BmpStyle\\102.bmp")));

      layer2.LableFieldIndex = 1;

      pointclass2.BeginEdit();

      IFeature ftPoint2 = pointclass2.CreateFeature();

      ftPoint2.SetValue(0, "0");

      ftPoint2.SetValue(1, "Destination");

      ftPoint2.Shape = line.GetPoint(line.PointCount - 1);

      ftPoint2.Save();

      pointclass2.SaveEdit();

      double xMin = 0, yMin = 0, xMax = 0, yMax = 0;

      for (int i = 0; i < line.PointCount; i++)

      {

       IPoint p = line.GetPoint(i);

       if (i == 0)

       {

       xMin = p.X;

       yMin = p.Y;

       xMax = p.X;

       yMax = p.Y;

       }

       else

       {

       if (p.X < xMin)

       xMin = p.X;

       if (p.X > xMax)

       xMax = p.X;

       if (p.Y < yMin)

       yMin = p.Y;

       if (p.Y > yMax)

       yMax = p.Y;

       }

       }

      IPoint pt = new PointClass();

      pt.X = (xMax + xMin) / 2;

      pt.Y = (yMax + yMin) / 2;

      double scale = 0;

      if (Math.Abs(xMax - xMin) > Math.Abs(yMax - yMin))

      {

       scale = (xMax - xMin) / (this._mapControl.Map.Envelope.MaxX -

                        this._mapControl.Map.Envelope.MinX) * 1.5;

       }

       else

      {

       scale = (yMax - yMin) / (this._mapControl.Map.Envelope.MaxY -

            this._mapControl.Map.Envelope.MinY) * 1.5;

       }

       this._mapControl.Map.CenterAt = pt;

       this._mapControl.Map.MapScale = this._mapControl.

            Map.MapScale * scale;

       this._mapControl.MapRefresh();

         IFeature ift = null;

         IFeatureCursor ifc;

         IFeatureClass cls;

         string strKeyword = "CATH";

         List list = new List();

         for (int i = 0; i < this._mapControl.Map.LayerCount; i++)

         {

         //get FeatureClass

         cls = (HiMap.Carto.IFeatureClass)this._mapControl.Map.GetLayer(i).Class;

         ifc = GetFeatureCursor(_mapControl, i, Settings.POISearchField +

                     " like '" + strKeyword + "%'");

         list.Add(ifc);

         //Navigate to the primitive

         ift = ifc.Next();

         if (ift != null && ift.Shape.Type == GeometryType.Polyline)

         {

         IPolyline line = ((IPolyline)ift.Shape);

         double xMin = 0, yMin = 0, xMax = 0, yMax = 0;

         for (int j = 0; j < line.PointCount; j++)

         {

         IPoint p = line.GetPoint(j);

         if (j == 0)

         {

         xMin = p.X;

         yMin = p.Y;

         xMax = p.X;

         yMax = p.Y;

         }

         else

         {

         if (p.X < xMin)

         xMin = p.X;

         if (p.X > xMax)

         xMax = p.X;

         if (p.Y < yMin)

         yMin = p.Y;

         if (p.Y > yMax)

         yMax = p.Y;

         }

         }

         IPoint pt = new PointClass();

         pt.X = (xMax + xMin) / 2;

         pt.Y = (yMax + yMin) / 2;

         double scale = 0;

         if (Math.Abs(xMax - xMin) > Math.Abs(yMax - yMin))

         {

         scale = (xMax - xMin + Math.Abs(this._mapControl.PointToMapPoint(64, 0).X

         - this._mapControl.PointToMapPoint(0, 0).X)) /

         (this._mapControl.Map.Envelope.MaxX -this._mapControl.Map.Envelope.MinX);

         }

         else

         {

         scale = (yMax - yMin + Math.Abs(this._mapControl.PointToMapPoint(0, 64).Y

         - this._mapControl.PointToMapPoint(0, 0).Y)) / (this._mapControl.Map.Envelope.MaxY -

         this._mapControl.Map.Envelope.MinY);

         }

         this._mapControl.Map.CenterAt = pt;

         this._mapControl.Map.MapScale = this._mapControl.Map.MapScale * scale;

         this._mapControl.MapRefresh();

         list.Add(ifc);

         }

         }

         this._mapControl.Flash(list, Color.Red, 10, 500);

      MessageBox.Show("Longitude:" + this.mapControl.Map.CenterAt.X.ToString() +

             " ;\r\nLatitude:" + this.mapControl.Map.CenterAt.Y.ToString());

                   MessageBox.Show("Scale = 1:" + mapControl1.Map.ScaleRuler.ToString());

         private void menuItemRanging_Click(object sender, EventArgs e)

         {

         //Parameter:

         //Point 1 Longitude: 123.4567

         //Point 1 Latitude: 41.3456

         //Point 2 Longitude: 124.4567

         //Point 2 Latitude: 41.3457

         double distance = HiMap.CoordinateSystem.CoordinateSystemClass.Distance

                (123.4567,41.3456, 124.3456, 42.3457);

         MessageBox.Show(distance.ToString());

         }

         if (this.mapControl.Map != null)

         {

         ICommand pCommand = new CommandBeforeView();

         pCommand.OnCreate(this.mapControl);

         pCommand.OnClick();

         }

        if (this.mapControl.Map != null)

        {

        ICommand pCommand = new CommandAfterView();

        pCommand.OnCreate(this.mapControl);

        pCommand.OnClick();

        }

         private void menuItemPan_Click(object sender, EventArgs e)

         {

        ITool tool = new HiMap.MapControls.Tools.ToolPan();

        tool.OnCreate(this.mapControl1);

        this.mapControl1.CurTool = tool;

         }

        private void menuItemFullExtent_Click(object sender, EventArgs e)

        {

        if (this.mapControl.Map != null)

        {

        mapControl.Map.Envelope = mapControl.Map.FullEnvelope;

        mapControl.MapRefresh();

        }

        }

------------------------------------------------------------------------

        private void menuItemFullExtent_Click(object sender, EventArgs e)

        {

        ICommand cmd = new HiMap.MapControls.Tools.CommandFullMap();

        cmd.OnCreate(this.mapControl1);

        cmd.OnClick();

        }

        private void menuItemZoomOut_Click(object sender, EventArgs e)

         {

         ITool tool = new HiMap.MapControls.Tools.ToolZoomOut();

         tool.OnCreate(this.mapControl1);

         this.mapControl1.CurTool = tool;

         }

        private void menuItemZoomIn_Click(object sender, EventArgs e)

        {

         ITool tool = new HiMap.MapControls.Tools.ToolZoomIn();

         tool.OnCreate(this.mapControl1);

         this.mapControl1.CurTool = tool;

         }

        Map map = new Map("test");

        mapControl.Map = map;

        mapControl.Map.FromKmd("\\Storage Card\\maps\\maps.xml");