//建立內存圖層------------------
/*
?*?創建一個工具，名為CreatMemlayer
?*?這個工具的作用為，創建一個名為layername參數傳進來的內存圖層
?*?這個內存圖層的格式定義在本類的CreateVehicleFeature函數，可以自定義修改
?*?作者：陳芋宇???
?*?20100716
?*/



using?System;
using?System.Drawing;
using?System.Runtime.InteropServices;
using?ESRI.ArcGIS.ADF.baseClasses;
using?ESRI.ArcGIS.ADF.CATIDs;
using?ESRI.ArcGIS.Carto;
using?ESRI.ArcGIS.Geodatabase;
using?ESRI.ArcGIS.DataSourcesGDB;
using?ESRI.ArcGIS.Geometry;
using?ESRI.ArcGIS.Controls;
using?ESRI.ArcGIS.esriSystem;
using?ESRI.ArcGIS.Display;



namespace?InMemolayer
{
????public?class?CreateMemolayer
????{
????????//自定義一系列的變量唄
????????private?IHookHelper?m_hookHelper;
????????private?IFeature?pthisfeature;
????????IFeatureClass?pvehicleclass;
????????IFeaturelayer?pvehiclelayer;
????????IActiveView?m_activeView;

????????///?

????????///?默認構造函數
????????///?

????????public?CreateMemolayer（object?hook）
????????{
????????????if?（hook?==?null）
????????????????return;

????????????if?（m_hookHelper?==?null）
????????????????m_hookHelper?=?new?HookHelperClass（）;

????????????m_hookHelper.Hook?=?hook;
????????????m_activeView?=?m_hookHelper.ActiveView;
????????
????????}
????????///?

????????///?創建空的內存工作空間，并且返回工作空間?--?pfeatureworkspace
????????///?


????????private?IFeatureWorkspace?CreateEmptylayerInmemeory（string?slayername?ESRI.ArcGIS.Geometry.ISpatialReference?pspatialreference?int?itype）
????????{
????????????//打開工作空間
????????????const?string?strShapeFieldName?=?“SHAPE“;
????????????IWorkspaceFactory?pWSF?=?new?InMemoryWorkspaceFactoryClass（）;
????????????ESRI.ArcGIS.Geodatabase.IWorkspaceName?pworkspacename?=?pWSF.Create（““?“MyWorkspace“?null?0）;
????????????ESRI.ArcGIS.esriSystem.IName?pname?=?（IName）pworkspacename;
????????????IFeatureWorkspace?pfeatureworkspace?=?（IFeatureWorkspace）（pname.Open（））;?//打開剛建立的內存空間

????????????try
????????????{

????????????????//為esriFieldTypeGeometry類型的字段創建幾何定義，包括類型和空間參照?
????????????????IGeometryDef?pGeoDef?=?new?GeometryDefClass（）;?????//The?geometry?definition?for?the?field?if?IsGeometry?is?TRUE.
????????????????IGeometryDefEdit?pGeoDefEdit?=?（IGeometryDefEdit）pGeoDef;
????????????????if?（itype?==?0）
????????????????{
????????????????????pGeoDefEdit.GeometryType_2?=?esriGeometryType.esriGeometryPoint;
????????????????}
????????????????else
????????????????{
????????????????????if?（itype?==?1）
????????????????????{
????????????????????????pGeoDefEdit.GeometryType_2?=?esriGeometryType.esriGeometryPolyline;
????????????????????}
????????????????????else
????????????????????{
????????????????????????pGeoDefEdit.GeometryType_2?=?esriGeometryType.esriGeometryPolygon;
????????????????????}
????????????????}
????????????????if?（pspatialreference?!=?null）
????????????????{
????????????????????pspatialreference.SetDomain（-180?180?-90?90）;
????????????????????pGeoDefEdit.SpatialReference_2?=?pspatialreference;
?????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????11836??2010-07-16?10:03??CreateMemolayer.cs

-----------?---------??----------?-----??----

????????????????11836????????????????????1