TerraGate SFS 4.5 版本 发布矢量数据使用的Cache数据如何再返回成shapefile文件？
两年前帮一个朋友解决过这个问题：
如果原来用4.5版本的时候，在网络环境下，为了提升调用服务器上发布的矢量数据的效率，对一些矢量shapefile格式的数据做了矢量切片，
而后来又弄丢了切片前的原始shapefile数据，当再需要那些原始的shapefile数据的时候，这该怎么办呢？
前几天整理电脑里的资料，刚好看到了这个，就把代码贴出来，分享给大家吧，也许对一些老朋友有用。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Xml;
using TerraExplorerX; namespace CacheToSHP
{
public partial class FrmMain : Form
{
public SGWorld65 sgworld = null;
IFeatureLayer65 pIFeatureLayer65 = null;
int ixmlc = ; public FrmMain()
{
InitializeComponent(); sgworld = new SGWorld65();
} private void btnSelectPath_Click(object sender, EventArgs e)
{
this.folderBrowserDialog1.ShowDialog();
this.txtCachePath.Text = this.folderBrowserDialog1.SelectedPath;
this.txtLayerName.Text = "";
this.txtOutPath.Text = "";
this.lblTips.Text = "";
ixmlc = ;
//清楚dataGridView1项
if (this.dataGridView1.Rows.Count > )
{
this.dataGridView1.DataSource = null;
}
} private void btnOK_Click(object sender, EventArgs e)
{
//清除dataGridView1项
if (this.dataGridView1.Rows.Count > )
{
this.dataGridView1.DataSource = null;
}
ixmlc = ;
this.txtOutPath.Text = "";
this.lblTips.Text = "";
this.txtLayerName.Text = GetLayerName(this.txtCachePath.Text);
this.txtCacheType.Text = GetLayerType(this.txtCachePath.Text + "\\" + this.txtLayerName.Text + ".layer");
FindFile(GetFSubPath(this.txtCachePath.Text));
MessageBox.Show("Cache读取完成！");
} // 获取Cache图层类型 赵贺 2015.02.14.
private String GetLayerType(string dirPathName)
{
string sLayerType = null;
FileStream fs = File.Open(dirPathName, FileMode.Open);
StreamReader sr = new StreamReader(fs);
string res = sr.ReadToEnd(); XmlDocument xml = new XmlDocument();
xml.LoadXml(res);
XmlElement root = xml.DocumentElement;
XmlNodeList childlist = root.ChildNodes;
sLayerType = childlist[].ChildNodes[].InnerText;
return sLayerType;
} // 获取Cache图层名称 赵贺 2015.02.14.
private String GetLayerName(string dirPath)
{
string sLayerName = null;
DirectoryInfo Dir = new DirectoryInfo(dirPath);
foreach (FileInfo f in Dir.GetFiles("*.layer")) //查找文件
{
sLayerName = f.ToString().Substring(,f.ToString().IndexOf('.'));
}
return sLayerName;
} // 获取当前文件夹的第一个子文件夹
private String GetFSubPath(string dirPath)
{
DirectoryInfo Dir = new DirectoryInfo(dirPath);
DirectoryInfo[] d = Dir.GetDirectories();
return dirPath + "\\" + d[].ToString();
} //解析XML内容，获取属性字段信息 赵贺 2015.02.14.
private void GetXMLData(string xmlpath)
{
try
{
FileStream fs = File.Open(xmlpath, FileMode.Open);
StreamReader sr = new StreamReader(fs);
string res = sr.ReadToEnd();
res = res.Substring(res.IndexOf("<wfs"), res.Length - res.IndexOf("<wfs"));//去除XML的无效内容 XmlDocument xml = new XmlDocument();
xml.LoadXml(res);
XmlElement root = xml.DocumentElement;
XmlNodeList childlist = root.ChildNodes;
if (ixmlc == )// 根据第一个xml的内容读取shp属性字段名称
{
if (this.dataGridView1.Columns.Count > )
{
this.dataGridView1.Columns.Clear();
}
this.dataGridView1.Columns.Add(childlist[].Attributes[].Name, childlist[].Attributes[].Name);
for (int j = ; j < childlist[].ChildNodes[].ChildNodes.Count; j++)
{
this.dataGridView1.Columns.Add(childlist[].ChildNodes[].ChildNodes[j].Name, childlist[].ChildNodes[].ChildNodes[j].Name);
}
ixmlc = ixmlc + ;
} for (int i = ; i < childlist.Count; i++)
{
XmlNode node = childlist[i];
string[] rowtext = new string[node.ChildNodes[].ChildNodes.Count + ];
rowtext[] = childlist[i].Attributes[].Value;//取第一项FID
for (int j = ; j < node.ChildNodes[].ChildNodes.Count; j++)
{
rowtext[j + ] = node.ChildNodes[].ChildNodes[j].InnerText;
}
//this.dataGridView1.Rows.Add(rowtext);
//去除FID重复项
if (dataGridView1.DataSource == null)
{
DataGridViewRow row = dataGridView1.Rows.Cast<DataGridViewRow>()
.FirstOrDefault(r => r.Cells[].EditedFormattedValue.Equals(rowtext[]));
if (row != null) dataGridView1.Rows.Remove(row);
this.dataGridView1.Rows.Add(rowtext);
}
else
{
DataTable dt = (DataTable)dataGridView1.DataSource;
DataRow row = dt.Rows.Cast<DataRow>()
.FirstOrDefault(r => r[].Equals(rowtext[]));
if (row != null) dt.Rows.Remove(row);
this.dataGridView1.Rows.Add(rowtext);
}
} xml = null;
}
catch (Exception ex)
{ }
} //遍历指定目录下的XML文件
public void FindFile(string dirPath) //参数dirPath为指定的目录
{
//在指定目录及子目录下查找文件,在listBox1中列出子目录及文件
DirectoryInfo Dir=new DirectoryInfo(dirPath);
try
{
foreach(DirectoryInfo d in Dir.GetDirectories())//查找子目录
{
FindFile(Dir + "\\" + d.ToString());
}
foreach(FileInfo f in Dir.GetFiles("*.xml")) //查找文件
{
GetXMLData(Dir + "\\"+f.ToString());
}
}
catch(Exception e)
{
MessageBox.Show(e.Message);
}
} private void btnExportSHP_Click(object sender, EventArgs e)
{
try
{
this.lblTips.Text = "正在输出....";
if (this.dataGridView1.Rows.Count > )
{
if (this.txtCacheType.Text == "Point")
{
pIFeatureLayer65 = sgworld.Creator.CreateNewFeatureLayer(this.txtLayerName.Text, LayerGeometryType.LGT_POINT, "FileName=" + this.txtLayerName.Text + ".shp;TEPlugName=OGR;", "");
}
else if (this.txtCacheType.Text == "Line")
{
pIFeatureLayer65 = sgworld.Creator.CreateNewFeatureLayer(this.txtLayerName.Text, LayerGeometryType.LGT_POLYLINE, "FileName=" + this.txtLayerName.Text + ".shp;TEPlugName=OGR;", "");
}
else if (this.txtCacheType.Text == "Polygon")
{
pIFeatureLayer65 = sgworld.Creator.CreateNewFeatureLayer(this.txtLayerName.Text, LayerGeometryType.LGT_POLYGON, "FileName=" + this.txtLayerName.Text + ".shp;TEPlugName=OGR;", "");
}
//pIFeatureLayer65.DataSourceInfo.Attributes.CreateAttribute("Yaw", AttributeTypeCode.AT_DOUBLE, 0, 20);
//pIFeatureLayer65.DataSourceInfo.Attributes.CreateAttribute("Pitch", AttributeTypeCode.AT_DOUBLE, 0, 20);
//pIFeatureLayer65.DataSourceInfo.Attributes.CreateAttribute("Roll", AttributeTypeCode.AT_DOUBLE, 0, 20);
//pIFeatureLayer65.DataSourceInfo.Attributes.CreateAttribute("Texture", AttributeTypeCode.AT_TEXT, 1024, 20);
//pIFeatureLayer65.DataSourceInfo.Attributes.CreateAttribute("Radius", AttributeTypeCode.AT_DOUBLE, 0, 20);
//pIFeatureLayer65.DataSourceInfo.Attributes.CreateAttribute("Length", AttributeTypeCode.AT_DOUBLE, 0, 20);
for (int i = ; i < this.dataGridView1.Columns.Count - ; i++)
{
pIFeatureLayer65.DataSourceInfo.Attributes.CreateAttribute(this.dataGridView1.Columns[i].Name, AttributeTypeCode.AT_TEXT, , );
} for (int i = ; i < this.dataGridView1.Rows.Count - ; i++)
{
string rowtext = "";
for (int j = ; j < this.dataGridView1.Columns.Count - ; j++)
{
rowtext = rowtext + this.dataGridView1.Rows[i].Cells[j].Value.ToString() + ";";
}
rowtext = rowtext + this.dataGridView1.Rows[i].Cells[this.dataGridView1.Columns.Count - ].Value.ToString();
if (this.txtCacheType.Text == "Point")
{
string x = this.dataGridView1.Rows[i].Cells[this.dataGridView1.Columns.Count - ].Value.ToString().Split(',')[];
string y = this.dataGridView1.Rows[i].Cells[this.dataGridView1.Columns.Count - ].Value.ToString().Split(',')[];
IGeometry pIGeometry = sgworld.Creator.GeometryCreator.CreatePointGeometry("Point(" + x + " " + y + ")");
pIFeatureLayer65.FeatureGroups.Point.CreateFeature(pIGeometry, rowtext);
}
else if (this.txtCacheType.Text == "Line")
{
IGeometry pIGeometry = sgworld.Creator.GeometryCreator.CreateGeometryFromWKT("LineString (" + this.dataGridView1.Rows[i].Cells[this.dataGridView1.Columns.Count - ].Value.ToString().Replace(" ", ";").Replace(",", " ").Replace(";", ",") + ")");
pIFeatureLayer65.FeatureGroups.Polyline.CreateFeature(pIGeometry, rowtext);
}
else if (this.txtCacheType.Text == "Polygon")
{
string p1 = this.dataGridView1.Rows[i].Cells[this.dataGridView1.Columns.Count - ].Value.ToString().Replace(" ", ";").Replace(",", " ").Replace(";", ",").Substring(,this.dataGridView1.Rows[i].Cells[this.dataGridView1.Columns.Count - ].Value.ToString().Replace(" ", ";").Replace(",", " ").Replace(";", ",").IndexOf(","));
string s = this.dataGridView1.Rows[i].Cells[this.dataGridView1.Columns.Count - ].Value.ToString().Replace(" ", ";").Replace(",", " ").Replace(";", ",")+","+p1;
IGeometry pIGeometry = sgworld.Creator.GeometryCreator.CreateGeometryFromWKT("Polygon((" + this.dataGridView1.Rows[i].Cells[this.dataGridView1.Columns.Count - ].Value.ToString().Replace(" ", ";").Replace(",", " ").Replace(";", ",") + "," + p1 + "))");
pIFeatureLayer65.FeatureGroups.Polygon.CreateFeature(pIGeometry, rowtext);
}
else
{ }
}
}
if (pIFeatureLayer65 != null)
{
pIFeatureLayer65.Save(); pIFeatureLayer65.Reproject = false;// 是否重投影 赵贺 2015.02.14
pIFeatureLayer65.CoordinateSystem.WellKnownText = "PROJCS[\"Beijing 1954 / 3-degree Gauss-Kruger Zone 37N\",GEOGCS[\"Beijing 1954\",DATUM[\"Beijing_1954\",SPHEROID[\"Krassowsky 1940\",6378245,298.3,AUTHORITY[\"EPSG\",\"7024\"]],TOWGS84[15.8,-154.4,-82.3,0,0,0,0],AUTHORITY[\"EPSG\",\"6214\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4214\"]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"latitude_of_origin\",0],PARAMETER[\"central_meridian\",111],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",500000],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"X\",NORTH],AXIS[\"Y\",EAST],AUTHORITY[\"EPSG\",\"2434\"]]";
pIFeatureLayer65.Load();
pIFeatureLayer65 = null;
}
this.txtOutPath.Text = "" + sgworld.Application.DataPath + "\\FeatureLayers";
this.lblTips.Text = "完成."; pIFeatureLayer65 = null;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
} private void btnSOutPath_Click(object sender, EventArgs e)
{
this.folderBrowserDialog1.ShowDialog();
this.txtOutPath.Text = this.folderBrowserDialog1.SelectedPath;
}
}
}