exportmap.cs

arcgis server 相关开发,将地图文件输出功能

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using ESRI.ArcGIS.Server;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Geometry;
using System.Collections;
using ESRI.ArcGIS.ADF.Web.DataSources;
using ESRI.ArcGIS.Display;
/// <summary>
/// Summary description for ExportMap
/// </summary>


    public class ExportMap
    {
        private ESRI.ArcGIS.ADF.Web.UI.WebControls.Map mapObject;
        private ESRI.ArcGIS.Server.IServerContext serverContext;
        private ESRI.ArcGIS.Carto.IMapServerObjects mapServerObj;
        private double titleXPos;
        private double titleYPos;

        public ExportMap(ESRI.ArcGIS.ADF.Web.UI.WebControls.Map tempMapObject, ESRI.ArcGIS.Server.IServerContext tempServerContext, double titleX, double titleY)
        {
            mapObject = tempMapObject;
            serverContext = tempServerContext;
            mapServerObj = (IMapServerObjects)serverContext.ServerObject;
         
            titleXPos = titleX;
            titleYPos = titleY;
        }

        public string ExportMapControlNew(int dpi, string imageType, string title)
        {
            //Set image type to pdf (need to make a choice in args 
            ESRI.ArcGIS.Carto.IImageType imgType = (IImageType) serverContext.CreateObject("esriCarto.ImageType");
            imgType.Format = GetesriImageType(imageType);
            
            //Set image resolution to dpi 
            ESRI.ArcGIS.Carto.IImageDisplay imgDisplay =(IImageDisplay) serverContext.CreateObject("esriCarto.ImageDisplay");
            imgDisplay.DeviceResolution = dpi;

            //Fill the image description (used to create export) with type and resolution 
            ESRI.ArcGIS.Carto.IImageDescription imgDesc = (IImageDescription)serverContext.CreateObject("esriCarto.ImageDescription");
            imgDesc.Type = imgType;
            imgDesc.Display = imgDisplay;

            //Get the default PageDescription for use in creation of export 
            ESRI.ArcGIS.Carto.IMapServerLayout mapLayout = (IMapServerLayout)mapServerObj;
            ESRI.ArcGIS.Carto.IPageDescription pd = mapLayout.DefaultPageDescription;

            //Get the MapDescription to modify it 
            ESRI.ArcGIS.Carto.IMapDescription myMapDesc =(IMapDescription) serverContext.CreateObject("esriCarto.MapDescription");
            myMapDesc = pd.MapFrames.get_Element(0).MapDescription;

            //Get coordinates of current map extent 
            double lXMin;
            double lXMax;
            double lYMin;
            double lYMax;
            lXMin = mapObject.Extent.XMin;
            lXMax = mapObject.Extent.XMax;
            lYMin = mapObject.Extent.YMin;
            lYMax = mapObject.Extent.YMax;

            //Calculate center point of current map extent 
            ESRI.ArcGIS.Geometry.IPoint pCenterPoint;
            pCenterPoint =(IPoint) serverContext.CreateObject("esriGeometry.Point");
            pCenterPoint.SpatialReference = myMapDesc.SpatialReference;
            pCenterPoint.X = lXMin + (lXMax - lXMin) / 2;
            pCenterPoint.Y = lYMin + (lYMax - lYMin) / 2;

            //Assign center point and map scale to new CenterAndScale object 
            ESRI.ArcGIS.Carto.ICenterAndScale pCenterScale;
            pCenterScale = (ICenterAndScale)serverContext.CreateObject("esriCarto.CenterAndScale");
            pCenterScale.Center = pCenterPoint;

            //Set scale to equal the map controls scale 
            pCenterScale.MapScale = mapObject.Scale;
            pd.MapFrames.get_Element(0).MapDescription.MapArea = (IMapArea) pCenterScale;
            pd.MapFrames.get_Element(0).MapDescription.LayerDescriptions.get_Element(3).SetSelectionSymbol = true;

            //Enumerate through all functionalities of the map control and set which layers are visible or not 
            System.Collections.IEnumerable funcEnum =mapObject.GetFunctionalities();

            int mapFrameElement = 0;
            foreach (ESRI.ArcGIS.ADF.Web.DataSources.IGISFunctionality gisfunctionality in funcEnum)
            {
                

                ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mf = (IMapFunctionality)gisfunctionality;

                string[] layerIDs = null;
                string[] layerNames = null;

                mf.GetLayers(out layerIDs, out layerNames);

                if (layerIDs.Length > 1)
                {


                    foreach (string id in layerIDs)
                    {
                        bool visible = mf.GetLayerVisibility(id);
                        if (visible)
                        {
                            pd.MapFrames.get_Element(mapFrameElement).MapDescription.LayerDescriptions.get_Element(int.Parse(id)).Visible = true;
                        }
                        else
                        {
                            pd.MapFrames.get_Element(mapFrameElement).MapDescription.LayerDescriptions.get_Element(int.Parse(id)).Visible = false;
                        }
                        //pd.MapFrames.Element(0).MapDescription.LayerDescriptions.Element(id).ScaleSymbols = True 
                    }
                    mapFrameElement += 1;
                }

            }

            //------------------------------- 
            //------------------------------- 
            //------------------------------- 
            //Setup the FormattedTextSymbol used for font settings 
            ESRI.ArcGIS.Display.IFormattedTextSymbol textFormattedSymbol = (IFormattedTextSymbol) serverContext.CreateObject("esriDisplay.TextSymbol");
            textFormattedSymbol.HorizontalAlignment =(esriTextHorizontalAlignment) ESRI.ArcGIS.ADF.ArcGISServer.esriTextHorizontalAlignment.esriTHAFull;
            textFormattedSymbol.VerticalAlignment = (esriTextVerticalAlignment)ESRI.ArcGIS.ADF.ArcGISServer.esriTextVerticalAlignment.esriTVABottom;
            stdole.IFontDisp fontDisp = textFormattedSymbol.Font;
            fontDisp.Name = "Arial";
            fontDisp.Bold = false;
            fontDisp.Underline = false;
            if ((fontDisp != null))
            {
                textFormattedSymbol.Font = fontDisp;
            }
            textFormattedSymbol.Size = 23;

            //Create text element 
            ESRI.ArcGIS.Carto.ITextElement pTextElement =(ITextElement) serverContext.CreateObject("esriCarto.TextElement");
            pTextElement.Text = title;            
            pTextElement.Symbol = textFormattedSymbol;
            

            //Set position 
            ESRI.ArcGIS.Geometry.IPoint pPoint =(IPoint) serverContext.CreateObject("esriGeometry.Point");
            
            //Main Code Old One
            //pPoint.X = titleXPos;
            //pPoint.Y = titleYPos;

            pPoint.X = 1.25;
            pPoint.Y = 28.5;


            ESRI.ArcGIS.Carto.IElement pElement;
            pElement = (IElement)pTextElement;
            pElement.Geometry = pPoint;

            //Create custom graphics 
            ESRI.ArcGIS.Carto.IGraphicElements pCustGraphics = (IGraphicElements)serverContext.CreateObject("esriCarto.GraphicElements");
            IGraphicElement pText = (IGraphicElement)pTextElement;
            pCustGraphics.Add(pText);

            //Add custom graphics to PageDescription 
            pd.CustomGraphics = pCustGraphics;
            //------------------------------- 
            //------------------------------- 
            //------------------------------- 



            //------------------------------- 
            //------------------------------- 
            //------------------------------- 
            //Setup for the Copyright notice to the Exported Map
            ESRI.ArcGIS.Display.IFormattedTextSymbol textFormattedSymbolCopyright = (IFormattedTextSymbol)serverContext.CreateObject("esriDisplay.TextSymbol");
            textFormattedSymbolCopyright.HorizontalAlignment = (esriTextHorizontalAlignment)ESRI.ArcGIS.ADF.ArcGISServer.esriTextHorizontalAlignment.esriTHAFull;
            textFormattedSymbolCopyright.VerticalAlignment = (esriTextVerticalAlignment)ESRI.ArcGIS.ADF.ArcGISServer.esriTextVerticalAlignment.esriTVABottom;
            stdole.IFontDisp fontDispcopy = textFormattedSymbolCopyright.Font;
            fontDispcopy.Name = "Verdana";
            fontDispcopy.Bold = false;
            fontDispcopy.Underline = false;
            if ((fontDispcopy != null))
            {
                textFormattedSymbolCopyright.Font = fontDispcopy;
            }
            textFormattedSymbolCopyright.Size = 6;

            //Create text element 
            ESRI.ArcGIS.Carto.ITextElement pTextElementCopyRight = (ITextElement)serverContext.CreateObject("esriCarto.TextElement");
            pTextElementCopyRight.Text = "Copyright 2007. ";
            pTextElementCopyRight.Symbol = textFormattedSymbolCopyright;


            //Set position 
            ESRI.ArcGIS.Geometry.IPoint pPointCopyRight = (IPoint)serverContext.CreateObject("esriGeometry.Point");
            pPointCopyRight.X = 7;
            pPointCopyRight.Y = 0.5;
            ESRI.ArcGIS.Carto.IElement pElementCopyright;
            pElementCopyright = (IElement)pTextElementCopyRight;
            pElementCopyright.Geometry = pPointCopyRight;

            //Create custom graphics 
            //  ESRI.ArcGIS.Carto.IGraphicElements pCustGraphicsCopyRight = (IGraphicElements)serverContext.CreateObject("esriCarto.GraphicElements");
            IGraphicElement pTextCopy = (IGraphicElement)pTextElementCopyRight;
            //pCustGraphicsCopyRight.Add(pTextCopy);

            pCustGraphics.Add(pTextCopy);


            //Add custom graphics to PageDescription 
            pd.CustomGraphics = pCustGraphics;
            //------------------------------- 
            //------------------------------- 
            //------------------------------- 



            //Refresh server object? 
            //mapServerObj.RefreshServerObjects() 

            //Create the export and get the url of the export created 
            ESRI.ArcGIS.Carto.ILayoutImage layoutImg = mapLayout.ExportLayout(pd, imgDesc);
            string urlString = layoutImg.URL;
            string url = layoutImg.URL;

            return urlString;

            // New added Code


            




        }

        public esriImageFormat GetesriImageType(string ImageType)
        {

            switch (ImageType)
            {
                case "BMP":
                    return esriImageFormat.esriImageBMP;
                case "JPG":
                    return esriImageFormat.esriImageJPG;
                case "DIB":
                    return esriImageFormat.esriImageDIB;
                case "TIFF":
                    return esriImageFormat.esriImageTIFF;
                case "PNG":
                    return esriImageFormat.esriImagePNG;
                case "PNG24":
                    return esriImageFormat.esriImagePNG24;
                case "EMF":
                    return esriImageFormat.esriImageEMF;
                case "PS":
                    return esriImageFormat.esriImagePS;

                case "PDF":
                    return esriImageFormat.esriImagePDF;
                case "AI":
                    return esriImageFormat.esriImageAI;
                case "GIF":
                    return esriImageFormat.esriImageGIF;
                default:
                    return esriImageFormat.esriImagePDF;
            }



        }

    }