如何在vs05下把gpx转换为shp文件

Question

最近刚开始做GIS方面的开发,读了sharp格式的白皮书后只有个大概的印象.
现在需要把gpx格式文件批量转换为shp格式的文件,请问高手如何在c#2005中操作shp文件?

Answer 1

用vb做gpx转换为shp格式后点,线均可正常显示,但是用c#做转换后为什么点可以显示而线却不能显示
下面附上c#的代码,还请高手指点迷津!using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using ArcViewShapeFileOCX_crp;
using AxArcViewShapeFileOCX_crp;namespace 地图格式转换_gpx_shp_
{
    public partial class MainFrm : Form
    {
        string[,] layerPoint = new string[7, 2];
        string[,] layerLine = new string[6, 2];        public MainFrm()
        {
            InitializeComponent();
        }
        public void ShpPointSave2(string LC, string LE, object id1, object id2, object idEle)
        {
            //航点转换为shp
            object newVert = null;
            object newField = null;
            string gpxPath = "";
            string shpPath = "";
            string pointId = "";
            string pointName = "";
            string pointEle = "";
            string s = "";
            double pointLon = 0;
            double pointLat = 0;
            int pos = 0;
            gpxPath = txtGpxPath.Text.ToString().Trim() + "\\" + LC + ".gpx";
            shpPath = txtShpPath.Text.ToString().Trim() + "\\" + LC + ".shp";            //if()
            axShapeFiles1.OpenShape(shpPath, ArcViewShapeFileOCX_crp.eNew.shpCreate, ArcViewShapeFileOCX_crp.eShapeType.shpPoint);
            newField = axShapeFiles1.ShapeFields.CreateField(id1.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 20, 0);
            newField = axShapeFiles1.ShapeFields.CreateField(id2.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 50, 0);
            newField = axShapeFiles1.ShapeFields.CreateField(idEle.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 30, 0);
            axShapeFiles1.AppendFieldDefs();            DataSet ds=new DataSet();
            DataTable dt=new DataTable();
            ds.ReadXml(gpxPath);
            dt=ds.Tables["wpt"];
            if(dt==null)
            {
                ds.Dispose();
                return;
            }
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                s = dt.Rows[i]["name"].ToString().Trim();
                pos = s.IndexOf(" ");
                pointName = s.Substring(0, pos);
                pointId = s.Substring(pos);
                pointEle = dt.Rows[i]["ele"].ToString().Trim();
                //                object o_pointId = (object)pointId;
                object o_pointName = (object)pointName;
                object o_pointEle = (object)pointEle;
                axShapeFiles1.ShapeFields.get_Item(ref(id1)).set_Value(ref(o_pointId));
                axShapeFiles1.ShapeFields.get_Item(ref(id2)).set_Value(ref(o_pointName));
                axShapeFiles1.ShapeFields.get_Item(ref(idEle)).set_Value(ref(o_pointEle));                pointLat = Convert.ToDouble(dt.Rows[i]["lat"]);
                pointLon = Convert.ToDouble(dt.Rows[i]["lon"]);
                newVert = axShapeFiles1.Vertices.AddVertice(pointLon, pointLat, 0, null, null, 0, null);
                axShapeFiles1.CreateShape();
            }
            //newVert=axShapeFiles1.Vertices.AddVertice()            /*int i = 0;
            int j = 0;
            int num = 0;
            int iName = 0;
            int iEle = 0;
            string s = "";
            string sId = "";
            string sName = "";
            //axShapeFiles1.Vertices newVer = null;
            object newVert = null;
            object newField = null;
            string myPath = txtGpxPath.Text.ToString().Trim() + "\\" + LC + ".gpx";
            //string myName = "";
            //XmlDocument xmldocument = new XmlDocument();
            //XmlElement xmlelement = null;
            DataTable dt = new DataTable();
            DataSet ds = new DataSet();            //
            s = txtShpPath.Text.ToString().Trim() + "\\" + LC + ".shp";            dt.ReadXml(myPath);
            dt = ds.Tables["wpt"];            //MessageBox.Show(s);
            axShapeFiles1.OpenShape(s, ArcViewShapeFileOCX_crp.eNew.shpCreate, ArcViewShapeFileOCX_crp.eShapeType.shpPoint);
            newField = axShapeFiles1.ShapeFields.CreateField(id1.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 20, 0);
            newField = axShapeFiles1.ShapeFields.CreateField(id2.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 50, 0);
            newField = axShapeFiles1.ShapeFields.CreateField(idEle.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 30, 0);
            //newField=axShapeFiles1.ShapeFields.CreateField(            axShapeFiles1.AppendFieldDefs();
            //xmldocument.Load(txtGpxPath.Text.ToString().Trim() + "\\" + LC + ".gpx");
            j = xmldocument.ChildNodes[1].ChildNodes.Count - 1;
            for (i = 0; i < j; i++)
            {
                xmlelement = (XmlElement)xmldocument.ChildNodes[1].ChildNodes[i];
                for (int k = 0; k < xmlelement.ChildNodes.Count - 1; k++)
                {
                    if (xmlelement.ChildNodes[k].LocalName == "name")
                    {
                        iName = k;
                    }
                    else if (xmlelement.ChildNodes[k].LocalName == "ele")
                    {
                        iEle = k;
                    }
                }
                s = xmlelement.ChildNodes[iName].ToString();
                num = s.IndexOf(" ");                if (num > 1)
                {                    sId = s.Substring(0, num - 1);
                }
                else
                {
                    num = s.Length;
                }
                s = xmlelement.ChildNodes[0].ToString();
                if (s.Length > 0)
                {
                    if (s.Contains(" ") == true)
                    {
                        s.Replace(sId, " ");
                    }
                    s = s.Trim();
                }                if (num > 0)
                {
                    sName = s.Substring(0, num - 1);
                }
                else
                {
                    sName = s;
                }
                s = xmlelement.ChildNodes[iEle].ToString();
                //axShapeFiles1.ShapeFields
                //object a;
                object osName = (object)sName;
                object osId = (object)sId;
                object os = (object)s;
                //a = id1;
                //b = idEle;
                axShapeFiles1.ShapeFields.get_Item(ref(id1)).set_Value(ref(osId));
                axShapeFiles1.ShapeFields.get_Item(ref(id2)).set_Value(ref(osName));
                axShapeFiles1.ShapeFields.get_Item(ref(idEle)).set_Value(ref(os));                if (xmlelement.GetAttribute("lon") == null)
                {
                    return;
                }
                string x1 = "123";// xmlelement.GetAttribute("lon");
                string y1 = "234";// xmlelement.GetAttribute("lat");
                newVert = axShapeFiles1.Vertices.AddVertice(Convert.ToDouble(x1), Convert.ToDouble(y1), 0, null, null, 0, null);
            
                axShapeFiles1.CreateShape();
            }*/
        }

Answer 2

public void ShpPointSave3(string LC, string LE, object id1, object id2, object id3, object idEle)
        {
            //
            object newVert = null;
            object newField = null;
            string gpxPath = "";
            string shpPath = "";
            string pointId = "";
            string pointName = "";
            string pointEle = "";
            string pointCode = "";
            string s = "";
            double pointLon = 0;
            double pointLat = 0;
            int pos = 0;
            gpxPath = txtGpxPath.Text.ToString().Trim() + "\\" + LC + ".gpx";
            shpPath = txtShpPath.Text.ToString().Trim() + "\\" + LC + ".shp";            //if()
            axShapeFiles1.OpenShape(shpPath, ArcViewShapeFileOCX_crp.eNew.shpCreate, ArcViewShapeFileOCX_crp.eShapeType.shpPoint);
            newField = axShapeFiles1.ShapeFields.CreateField(id1.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 30, 0);
            newField = axShapeFiles1.ShapeFields.CreateField(id2.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 50, 0);
            newField = axShapeFiles1.ShapeFields.CreateField(id3.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 30, 0);
            newField = axShapeFiles1.ShapeFields.CreateField(idEle.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 30, 0);
            axShapeFiles1.AppendFieldDefs();            DataSet ds = new DataSet();
            DataTable dt = new DataTable();
            ds.ReadXml(gpxPath);
            dt = ds.Tables["wpt"];
            if (dt == null)
            {
                ds.Dispose();
                return;
            }
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                s = dt.Rows[i]["name"].ToString().Trim();
                pos = s.IndexOf(" ");
                pointCode = s.Substring(0, pos);
                s = s.Replace(pointCode, "").Trim();
                pos = s.IndexOf(" ");
                pointName = s.Substring(0, pos);
                pointId = s.Substring(pos);
                pointEle = dt.Rows[i]["ele"].ToString().Trim();
                //                object o_pointId = (object)pointId;
                object o_pointName = (object)pointName;
                object o_pointEle = (object)pointEle;
                object o_pointCode = (object)pointCode;
                axShapeFiles1.ShapeFields.get_Item(ref(id1)).set_Value(ref(o_pointId));
                axShapeFiles1.ShapeFields.get_Item(ref(id2)).set_Value(ref(o_pointName));
                axShapeFiles1.ShapeFields.get_Item(ref(id3)).set_Value(ref(o_pointCode));
                axShapeFiles1.ShapeFields.get_Item(ref(idEle)).set_Value(ref(o_pointEle));                pointLat = Convert.ToDouble(dt.Rows[i]["lat"]);
                pointLon = Convert.ToDouble(dt.Rows[i]["lon"]);
                newVert = axShapeFiles1.Vertices.AddVertice(pointLon, pointLat, 0, null, null, 0, null);
                axShapeFiles1.CreateShape();
            }
        }        public void ShpLineSave2(string LC, string LE)
        {
            //
            object newField = null;
            object newVert = null;
            object Code = "Code";
            object Name = "Name";
            string gpxPath = "";
            string shpPath = "";
            string lineId = "";
            string lineName = "";
            //string s = "";
            string lineLon = "";
            string lineLat = "";
            int pos = 0;
            gpxPath = txtGpxPath.Text.ToString().Trim() + "\\" + LC + ".gpx";
            shpPath = txtShpPath.Text.ToString().Trim() + "\\" + LC + ".shp";            //if()
            axShapeFiles1.OpenShape(shpPath, ArcViewShapeFileOCX_crp.eNew.shpCreate, ArcViewShapeFileOCX_crp.eShapeType.shpPolyLine);
            newField = axShapeFiles1.ShapeFields.CreateField(Code.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 20, 0);
            newField = axShapeFiles1.ShapeFields.CreateField(Name.ToString(), ArcViewShapeFileOCX_crp.eFieldType.shpText, 50, 0);
            axShapeFiles1.AppendFieldDefs();            DataSet ds = new DataSet();
            DataTable dt = new DataTable();
            ds.ReadXml(gpxPath);
            dt = ds.Tables["trk"];
            if (dt == null)
            {
                ds.Dispose();
                return;
            }
            /*for (int i = 0; i < dt.Rows.Count; i++)
            {
                s = dt.Rows[i]["name"].ToString().Trim();
                pos = s.IndexOf(" ");
                lineId = s.Substring(0, pos);
                lineName = s.Substring(pos);                DataRelation dr = ds.Tables["trk"].ChildRelations[0];
                for (int j = 0; j < ds.Tables["trk"].Rows.Count; j++ )
                {
                    //lineLat=Convert.ToDouble()
                    //newVert=axShapeFiles1.Vertices.AddVertice()
                }
                //foreach(DataRow row in dt.Rows[i]["trkseg"])
            }*/
            DataRelation dralTrk = ds.Tables["trk"].ChildRelations[0];
            string trkname = "";
            string trkcode = "";
            string trkpname = "";
            double trklon = 0;
            double trklat = 0;
            double trkele = 0;
            //short n = 0;            //trk
            foreach (DataRow drTrk in ds.Tables["trk"].Rows)
            {
                //DataTable dtTrk = new DataTable();
                trkname = drTrk["name"].ToString();
                string[] s = trkname.Split(' ');
                trkcode = s[0];
                trkpname = s[1];                object o_trkcode = (object)trkcode;
                object o_trkpname = (object)trkpname;
                axShapeFiles1.ShapeFields.get_Item(ref(Code)).set_Value(ref(o_trkcode));
                axShapeFiles1.ShapeFields.get_Item(ref(Name)).set_Value(ref(o_trkpname));
                
                //trkreg
                foreach (DataRow drTrkreg in drTrk.GetChildRows(dralTrk))
                {
                    DataRelation dralTrkreg = ds.Tables[drTrkreg.Table.TableName].ChildRelations[0];                    /*object o_trkcode = null;
                    object o_trkpname = null;
                    axShapeFiles1.ShapeFields.get_Item(ref(Code)).set_Value(ref())*/
                    //point
                    int n = 1;
                    foreach (DataRow drLine in drTrkreg.GetChildRows(dralTrkreg))
                    {
                        trklat = Convert.ToDouble(drLine["lat"].ToString());
                        trklon = Convert.ToDouble(drLine["lon"].ToString());
                        trkele = Convert.ToDouble(drLine["ele"].ToString());
                        short m = (short)n;
                        newVert = axShapeFiles1.Vertices.AddVertice(trklon, trklat, m, null, trkele, 0, null);
                        n = (int)m;
                        n = n + 1;
                    }
                    axShapeFiles1.CreateShape();
                }
            }
        }