prjfileprop.cs

ESRI scheme 文件投影修改

using System;
using System.Collections.Generic;
using System.Text;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Geodatabase;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.DataSourcesGDB;
using ESRI.ArcGIS.Display;

using System.Xml;
using System.IO;
using System.Xml.Serialization;
namespace ChangeXMLPrj
{
    public class PrjFileProp
    {
        private string strWKT;
         
        private ISpatialReference pSpatialRef = null;

        public PrjFileProp(string prjfilename)
        {
            #region  需要featureclass的GDB
            //#region 序列化图层对象
            IWorkspaceFactory pwksf = new AccessWorkspaceFactoryClass();
            IFeatureWorkspace pfwks = pwksf.OpenFromFile("Reuse.mdb", 0) as IFeatureWorkspace;
            IFeatureClass pfdt = pfwks.OpenFeatureClass("refmz");
            IFeatureLayer pfly = new FeatureLayerClass();
            pfly.Name = "wda";
            pfly.FeatureClass = pfdt as IFeatureClass;
            //////序列化保存对象
            this.SeriesObj(pfly); 
            //#endregion

            //反序列话读取对象
             IFeatureClass pfc= this.DisSeri();
             if (pfc == null) return;
            #endregion

            ISpatialReferenceFactory2 psrfac = new SpatialReferenceEnvironmentClass();
            pSpatialRef = psrfac.CreateESRISpatialReferenceFromPRJFile(prjfilename);
            pSpatialRef = new UnknownCoordinateSystemClass();
            IFeatureLayer pflyr = new FeatureLayerClass();
            pflyr.FeatureClass = pfc;
            pflyr.SpatialReference = pSpatialRef;
            pSpatialRef =( pflyr as IGeoDataset ).SpatialReference;

            IProjectedCoordinateSystem ipcs = pSpatialRef as IProjectedCoordinateSystem;
            double zmax=0;
            double zmin=1;
            ISpatialReferenceResolution pspresolution = pSpatialRef as ISpatialReferenceResolution;
            double dblxyresolu= pspresolution.get_XYResolution(true);
            double dblzresolu = pspresolution.get_ZResolution(true);
            double dblmresolu = pspresolution.MResolution;

            ///需要Alter中间FeatureClass层
            pfwks.CreateFeatureDataset("hat5", pSpatialRef);
            ISpatialReferenceTolerance psptollerance = pSpatialRef as ISpatialReferenceTolerance;
            double dblxytolrance = psptollerance.XYTolerance;
            double dblztolrance = psptollerance.ZTolerance;
            double dblmtolrance = psptollerance.MTolerance;


            if (pSpatialRef.HasMPrecision())
            {

                pSpatialRef.GetMDomain(out zmin, out zmax);
            }

            if (pSpatialRef.HasZPrecision())
            {
                pSpatialRef.GetZDomain(out zmin, out zmax);
            }
            if (pSpatialRef.HasXYPrecision())
            {
                double dx, dy, ax, ay;
                ipcs.GetDomain(out dx,out dy ,out ax,out ay );
                pSpatialRef.GetDomain(out dx,out dy ,out ax,out ay ); 
            }
            double a,b,c;
            pSpatialRef.GetFalseOriginAndUnits(out a, out b, out c);
        }

        private void SeriesObj(IFeatureLayer plyr)
        {
            IXMLStream xstr=new XMLStreamClass();
            IPersistStream ps = plyr as IPersistStream;
            ps.Save(xstr as IStream , 0);
            xstr.SaveToFile("featurelyr.xml");
        }

        private IFeatureClass DisSeri()
        {
            try
            {
                IXMLStream read = new XMLStreamClass();
                read.LoadFromFile("featurelyr.xml");
                IFeatureLayer plf = new FeatureLayerClass();
                IPersistStream ppsrad = plf as IPersistStream;
                ppsrad.Load(read as IStream);
                string ss = plf.Name;
                return plf.FeatureClass;
            }
            catch
            {
                return null;
            }
        }
    }
}