Arc Engine下数据的加载处理
1.加载Shapefile数据
IWorkspaceFactory pWorkspaceFactory;
IFeatureWorkspace pFeatureWorkspace;
IFeatureLayer pFeatureLayer; //获取当前路径和文件名
OpenFileDialog dlg = new OpenFileDialog();
dlg.Filter = "Shape(*.shp)|*.shp|All Files(*.*)|*.*";
dlg.Title = "Open Shapefile data";
dlg.ShowDialog();
string strFullPath = dlg.FileName;
if (strFullPath == "") return;
int Index = strFullPath.LastIndexOf("\\");
string filePath = strFullPath.Substring(, Index);
string fileName = strFullPath.Substring(Index + ); //打开工作空间并添加shp文件
pWorkspaceFactory = new ShapefileWorkspaceFactoryClass();
pFeatureWorkspace = (IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath, );
pFeatureLayer = new FeatureLayerClass(); pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass(fileName);
pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;
axMapControl1.Map.AddLayer(pFeatureLayer);
axMapControl1.ActiveView.Refresh();
2.加载栅格数据
IWorkspaceFactory pWorkspaceFactory;
IRasterWorkspace pRasterWorkspace; OpenFileDialog dlg = new OpenFileDialog();
dlg.Filter = "Layer File(*.lyr)|*.jpg;*.bmp;*.tiff";
dlg.Title = "Open Raster Data File";
dlg.ShowDialog();
//获取当前路径和文件名
string strFullPath = dlg.FileName;
if (strFullPath == "") return;
int Index = strFullPath.LastIndexOf("\\");
string fileName = strFullPath.Substring(Index + );
string filePath = strFullPath.Substring(, Index); pWorkspaceFactory = new RasterWorkspaceFactoryClass();
pRasterWorkspace = (IRasterWorkspace)pWorkspaceFactory.OpenFromFile(filePath, );
IRasterDataset pRasterDataset = (IRasterDataset)pRasterWorkspace.OpenRasterDataset(fileName);
IRasterLayer pRasterLayer = new RasterLayerClass();
pRasterLayer.CreateFromDataset(pRasterDataset);
axMapControl1.Map.AddLayer(pRasterLayer);
axMapControl1.ActiveView.Refresh();
3.加载CAD数据
IWorkspaceFactory pWorkspaceFactory;
IFeatureWorkspace pFeatureWorkspace;
IFeatureLayer pFeatureLayer;
IFeatureDataset pFeatureDataset;
//获取当前路径和文件名
OpenFileDialog dlg = new OpenFileDialog();
dlg.Filter = "CAD(*.dwg)|*.dwg|All Files(*.*)|*.*";
dlg.Title = "Open CAD Data file";
dlg.ShowDialog();
string strFullPath = dlg.FileName;
if (strFullPath == "") return;
int Index = strFullPath.LastIndexOf("\\");
string filePath = strFullPath.Substring(, Index);
string fileName = strFullPath.Substring(Index + );
//打开CAD数据集
pWorkspaceFactory = new CadWorkspaceFactoryClass();
pFeatureWorkspace = (IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath, );
//打开一个要素集
pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset(fileName);
//IFeaturClassContainer可以管理IFeatureDataset中的每个要素类
IFeatureClassContainer pFeatClassContainer = (IFeatureClassContainer)pFeatureDataset;
//对CAD文件中的要素进行遍历处理
for (int i = ; i < pFeatClassContainer.ClassCount - ; i++)
{
IFeatureClass pFeatClass = pFeatClassContainer.get_Class(i);
if (pFeatClass.FeatureType == esriFeatureType.esriFTCoverageAnnotation)
//如果是注记，则添加注记层
pFeatureLayer = new CadAnnotationLayerClass();
else//如果是点、线、面，则添加要素层
{
pFeatureLayer = new FeatureLayerClass();
pFeatureLayer.Name = pFeatClass.AliasName;
pFeatureLayer.FeatureClass = pFeatClass;
axMapControl1.Map.AddLayer(pFeatureLayer);
axMapControl1.ActiveView.Refresh();
}
}
4.加载PersonGeodatabase数据
IWorkspaceFactory pAccessWorkspaceFactory;
IFeatureWorkspace pFeatureWorkspace;
IFeatureLayer pFeatureLayer;
IFeatureDataset pFeatureDataset; //获取当前路径和文件名
OpenFileDialog dlg = new OpenFileDialog();
dlg.Filter = "Personal Geodatabase(*.mdb)|*.mdb|All Files(*.*)|*.*";
dlg.Title = "Open PersonGeodatabase file";
dlg.ShowDialog();
string strFullPath = dlg.FileName;
if (strFullPath == "") return; //打开personGeodatabase,并添加图层
pAccessWorkspaceFactory = new AccessWorkspaceFactoryClass();
//打开工作空间并遍历数据集
IWorkspace pWorkspace = pAccessWorkspaceFactory.OpenFromFile(strFullPath, );
IEnumDataset pEnumDataset = pWorkspace.get_Datasets(ESRI.ArcGIS.Geodatabase.esriDatasetType.esriDTAny);
pEnumDataset.Reset();
IDataset pDataset = pEnumDataset.Next();
//如果数据集是IFeatureDataset,则遍历它下面的子类
if (pDataset is IFeatureDataset)
{
pFeatureWorkspace = (IFeatureWorkspace)pAccessWorkspaceFactory.OpenFromFile(strFullPath, );
pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset(pDataset.Name);
IEnumDataset pEnumDataset1 = pFeatureDataset.Subsets;
pEnumDataset1.Reset();
IDataset pDataset1 = pEnumDataset1.Next();
//如果子类是FeatureClass，则添加到axMapControl1中
if (pDataset1 is IFeatureClass)
{
pFeatureLayer = new FeatureLayerClass();
pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass(pDataset1.Name);
pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;
axMapControl1.Map.AddLayer(pFeatureLayer);
axMapControl1.ActiveView.Refresh();
}
else
{
MessageBox.Show("No FeatureLayer!");
}
}
else
{
pFeatureWorkspace = (IFeatureWorkspace)pWorkspace;
pFeatureLayer = new FeatureLayerClass();
pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass("图层名");
pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;
axMapControl1.Map.AddLayer(pFeatureLayer);
axMapControl1.ActiveView.Refresh();
}
5.加载SDE数据库数据
public ESRI.ArcGIS.Geodatabase.IWorkspace arcSDEWorkspaceOpen(String server, String instance, String user, String password, String database, String version)
{
try
{
// Create and populate the property set
ESRI.ArcGIS.esriSystem.IPropertySet propertySet = new ESRI.ArcGIS.esriSystem.PropertySetClass();
propertySet.SetProperty("SERVER", server);
propertySet.SetProperty("INSTANCE", instance);
propertySet.SetProperty("DATABASE", database);
propertySet.SetProperty("USER", user);
propertySet.SetProperty("PASSWORD", password);
propertySet.SetProperty("VERSION", version); ESRI.ArcGIS.Geodatabase.IWorkspaceFactory2 workspaceFactory;
workspaceFactory = (ESRI.ArcGIS.Geodatabase.IWorkspaceFactory2)new SdeWorkspaceFactoryClass();
return workspaceFactory.Open(propertySet, );
}
catch (Exception e)
{
throw new Exception(String.Format("arcSDEWorkspaceOpen: {0}", e.Message), e);
}
} IWorkspace pWorkspace = arcSDEWorkspaceOpen("计算机名", "", "数据库用户", "密码", "", "sde.DEFAULT"); IFeatureWorkspace pFeattureWS = (IFeatureWorkspace)pWorkspace;
IFeatureClass pFeatureClass = pFeattureWS.OpenFeatureClass("图层名");
IFeatureLayer pFeatureLayer = new FeatureLayerClass();
pFeatureLayer.FeatureClass = pFeatureClass; axMapControl1.AddLayer(pFeatureLayer);
axMapControl1.Refresh();
6、文件地理数据库加载
IFeatureWorkspace pFeatureWorkspace;
IFeatureLayer pFeatureLayer;
IFeatureDataset pFeatureDataset;
string filePath = @"D:\My Documents\ArcGIS\新建文件地理数据库.gdb";
string filename = "haha";
//打开personGeodatabase,并添加图层
IWorkspaceFactory pAccessWorkspaceFactory = new FileGDBWorkspaceFactoryClass();
//打开工作空间并遍历数据集
IWorkspace pWorkspace = pAccessWorkspaceFactory.OpenFromFile(filePath, );
IEnumDataset pEnumDataset = pWorkspace.get_Datasets(ESRI.ArcGIS.Geodatabase.esriDatasetType.esriDTAny);
pEnumDataset.Reset();
IDataset pDataset = pEnumDataset.Next();
//如果数据集是IFeatureDataset,则遍历它下面的子类
if (pDataset is IFeatureDataset)
{
pFeatureWorkspace = (IFeatureWorkspace)pAccessWorkspaceFactory.OpenFromFile(filePath, );
pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset(pDataset.Name);
IEnumDataset pEnumDataset1 = pFeatureDataset.Subsets;
pEnumDataset1.Reset();
IDataset pDataset1 = pEnumDataset1.Next();
//如果子类是FeatureClass，则添加到axMapControl1中
if (pDataset1 is IFeatureClass)
{
pFeatureLayer = new FeatureLayerClass();
pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass(filename);
pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;
IRgbColor pRgbColor = new RgbColorClass();
pRgbColor.Red = ;
pRgbColor.Green = ;
pRgbColor.Blue = ;
pRgbColor.Transparency = ;
ILineSymbol pLineSymbol = new SimpleLineSymbolClass();
IFillSymbol pFillSymbol = new SimpleFillSymbolClass();
pFillSymbol.Color = pRgbColor;
pRgbColor.Transparency = ;
pLineSymbol.Color = pRgbColor;
pLineSymbol.Width = ;
pFillSymbol.Outline = pLineSymbol;
ISimpleRenderer pSimpleRender = new SimpleRendererClass();
pSimpleRender.Symbol = pFillSymbol as ISymbol;
IGeoFeatureLayer pGeoFeatureLayer = pFeatureLayer as IGeoFeatureLayer;
pGeoFeatureLayer.Renderer = pSimpleRender as IFeatureRenderer;
pFeatureLayer = pGeoFeatureLayer as IFeatureLayer;
axMapControl1.Map.AddLayer(pFeatureLayer);
axMapControl1.ActiveView.Refresh();
}
}
Arc Engine下数据的加载处理的更多相关文章
- ArcGIS Engine中数据的加载 （转）
1.加载Shapefile数据 1 IWorkspaceFactory pWorkspaceFactory; 2 IFeatureWorkspace pFeatureWorkspace; 3 IFea ...
- 分页插件思想：pc加载更多功能和移动端下拉刷新加载数据
感觉一个人玩lol也没意思了,玩会手机,看到这个下拉刷新功能就写了这个demo! 这个demo写的比较随意,咱不能当做插件使用,基本思想是没问题的,要用就自己封装吧! 直接上代码分析下吧! 布局: & ...
- 页面滚动动态加载数据，页面下拉自动加载内容 jquery
<!DOCTYPE=html> <html> <head> < script src="js/jquery.js" type=" ...
- Jquery页面滚动动态加载数据，页面下拉自动加载内容
<!DOCTYPE=html> <html> <head> <script src="js/jquery.js" type="t ...
- JS实现-页面数据无限加载
在手机端浏览网页时,经常使用一个功能,当我们浏览京东或者淘宝时,页面滑动到底部,我们看到数据自动加载到列表.之前并不知道这些功能是怎么实现的,于是自己在PC浏览器上模拟实现这样的功能.先看看浏览效果: ...
- EF如何操作内存中的数据以及加载相关联表的数据：延迟加载、贪婪加载、显示加载
之前的EF Code First系列讲了那么多如何配置实体和数据库表的关系,显然配置只是辅助,使用EF操作数据库才是每天开发中都需要用的,这个系列讲讲如何使用EF操作数据库.老版本的EF主要是通过Ob ...
- 省市数据递归加载到TreeView
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; usin ...
- WinForm ListView虚拟模式加载数据 提高加载速度
将VirtualMode 属性设置为 true 会将 ListView 置于虚拟模式.控件不再使用Collection.Add()这种方式来添加数据,取而代之的是使用RetrieveVirtualIt ...
- Echarts使用及动态加载图表数据 折线图X轴数据动态加载
Echarts简介 echarts,缩写来自Enterprise Charts,商业级数据图表,一个纯JavaScript的图表库,来自百度...我想应该够简洁了 使用Echarts 目前,就官网的文 ...
随机推荐
- openvpn安装
1,wget http://swupdate.openvpn.org/as/openvpn-as-2.0.10-CentOS7.x86_64.rpm 2,passwd openvpn
- 测试webAPP时图标背景一片黑色
写了个web小程序,打包成APP后安装到手机里,在魅族手机里显示是正常的,但是在EMUI和MIUI中却显示一片黑色,搞了半天才发现原来是因为EMUI会自动给应用的图标裁剪圆角并加上背景色,背景色是系统 ...
- MSSQLSERVER服务无法启动的解决方案
MSSQLSERVER服务无法启动的解决方案 有时候sqlserver无法启动了,原因是mssqlserver服务没有启动,当你手动启动时,又出现服务无法响应的可恶错误提示... 笔者“有幸”遇到了, ...
- js自定义对象
一,概述 在Java语言中,我们可以定义自己的类,并根据这些类创建对象来使用,在Javascript中,我们也可以定义自己的类,例如定义User类.Hashtable类等等. 目前在Javascrip ...
- PLSQLDeveloper 提示不能初始化？
原因: oracle数据库是64位的,而 PLSQL Developer 只有32位的! 下载PLSQL_Developer地址: http://pan.baidu.com/share/link?sh ...
- 【转】Oracle Database PSU/CPU
转自: http://www.cnblogs.com/ebs-blog/archive/2011/07/28/2167232.html 1. 什么是PSU/CPU?CPU: Critical Patc ...
- sk_buff封装和解封装网络数据包的过程详解（转载）
http://dog250.blog.51cto.com/2466061/1612791 可以说sk_buff结构体是Linux网络协议栈的核心中的核心,几乎所有的操作都是围绕sk_buff这个结构体 ...
- 迅雷VIP帐号获取小工具
自己写的迅雷vip帐号获取工具,主要是熟悉一下正则表达式 下载地址: 迅雷VIP获取工具 另附vip防踢补丁,不能使用最新迅雷,我使用的是迅雷尊享版2.0.12.258,使用了一段时间,至少没被踢出来 ...
- 影响google PageRank的因素
1 与pr高的网站做链接: 2 内容质量高的网站链接 3 加入搜索引擎分类目录 4 加入免费开源目录 5 你的链接出现在流量大.知名度高.频繁更新的重要网站上 6 google对PDF格式的文件比较看 ...
- myeclipse性能优化
1. 取消启动项.这个设置立竿见影.Window->Preferences->General->Startup and Shutdown, Plug-ins activated on ...