Engine中如何绘制经纬网格线？

public void CreateGrid(IActiveView activeView, IPageLayout pageLayout) 

{ 

//Create the grid. 

IMapGrid mapGrid = new GraticuleClass(); 

mapGrid.Name = Map Grid; 



//Create a color. 

IColor color = new RgbColorClass(); 

color.RGB = 0XBBBBBB; // -> Gray. 



//Set the line symbol used to draw the grid. 

ICartographicLineSymbol cartographicLineSymbol = new CartographicLineSymbolClass 

(); 

cartographicLineSymbol.Cap = esriLineCapStyle.esriLCSButt; 

cartographicLineSymbol.Width = 2; 

cartographicLineSymbol.Color = color; 

mapGrid.LineSymbol = cartographicLineSymbol as ILineSymbol; 

mapGrid.Border = null; // Clear the default frame border. 



//Set the Tick properties. 

mapGrid.TickLength = 15; 

cartographicLineSymbol = new CartographicLineSymbolClass(); 

cartographicLineSymbol.Cap = esriLineCapStyle.esriLCSButt; 

cartographicLineSymbol.Width = 1; 

cartographicLineSymbol.Color = color; 

mapGrid.TickLineSymbol = cartographicLineSymbol as ILineSymbol; 

mapGrid.TickMarkSymbol = null; 



//Set the SubTick properties. 

mapGrid.SubTickCount = 5; 

mapGrid.SubTickLength = 10; 

cartographicLineSymbol = new CartographicLineSymbolClass(); 

cartographicLineSymbol.Cap = esriLineCapStyle.esriLCSButt; 

cartographicLineSymbol.Width = 0.2; 

cartographicLineSymbol.Color = color; 

mapGrid.SubTickLineSymbol = cartographicLineSymbol as ILineSymbol; 



// Set the Grid label properties. 

IGridLabel gridLabel = mapGrid.LabelFormat; 

gridLabel.LabelOffset = 15; 



//Set the Tick, SubTick, and Label Visibility along the four sides of the grid. 

mapGrid.SetTickVisibility(true, true, true, true); 

mapGrid.SetSubTickVisibility(true, true, true, true); 

mapGrid.SetLabelVisibility(true, true, true, true); 



//Make the map grid visible so it gets drawn when Active View is updated. 

mapGrid.Visible = true; 



//Set the IMeasuredGrid properties. 

IMeasuredGrid measuredGrid = mapGrid as IMeasuredGrid; 

measuredGrid.FixedOrigin = true; 

measuredGrid.XIntervalSize = 10; //Meridian interval. 

measuredGrid.XOrigin = 5; //Shift grid 5°. 

measuredGrid.YIntervalSize = 10; //Parallel interval. 

measuredGrid.YOrigin = 5; //Shift grid 5°. 



// Add the grid to the MapFrame. 

IMap map = activeView.FocusMap; 

IGraphicsContainer graphicsContainer = pageLayout as IGraphicsContainer; 

IFrameElement frameElement = graphicsContainer.FindFrame(map); 

IMapFrame mapFrame = frameElement as IMapFrame; 

IMapGrids mapGrids = null; 

mapGrids = mapFrame as IMapGrids; 

mapGrids.AddMapGrid(mapGrid); 



//Refresh the view. 

activeView.PartialRefresh(esriViewDrawPhase.esriViewBackground, null, null); 

} 



参考帮助文档：http://help.arcgis.com/en/sdk/ ... 00000 ​