//判断是否需要创建要素类
public static bool CheckFeatCls(bool bIsCut, IFeatureLayer pFeatLayer, ref int lFeatCount, IGeometry pDomainGeometry)
{
//pDomainGeometry = null;
IFeatureSelection pFeatSelection = default(IFeatureSelection);
if (bIsCut)
{
pFeatSelection = ClsSelectAndQuery.GetFeatSelection(ref pFeatLayer, "", esriSelectionResultEnum.esriSelectionResultNew, esriSpatialRelEnum.esriSpatialRelIntersects, ref pDomainGeometry);
lFeatCount = pFeatSelection.SelectionSet.Count;
}
else
{
long lFeatCount2 = (long)lFeatCount;
ClsSelectAndQuery.GetFeatCursor(pFeatLayer.FeatureClass, "", esriSpatialRelEnum.esriSpatialRelIntersects, ref pDomainGeometry, true, ref lFeatCount2);
lFeatCount = (int)lFeatCount2;
}
return(true);
}
public static long OutPutFeat(ref IFeatureClass pDesFeatCls, ref IFeatureClass pOriFeatCls, string sSql,
IGeometry pDomainGeometry, bool bIsCut, ref ISpatialReference pSpatialReference,
Dictionary <string, string> pDicField, ref ProgressBarX vProgressBar, ref LabelX lblInfo, string sInfo)
{
long functionReturnValue = 0;
//DevComponents.DotNetBar.LabelItem
IFeatureCursor pWithINFeatCursor = null;
IFeatureCursor pFeatCursor = default(IFeatureCursor);
IFeatureLayer pFeatLayer = default(IFeatureLayer);
IFeatureSelection pFeatSelection = default(IFeatureSelection);
int lFeatCount = 0;
bool bInsertRight = true;
if (pDesFeatCls == null | pOriFeatCls == null)
{
return(functionReturnValue);
}
if (pDesFeatCls.ShapeType == esriGeometryType.esriGeometryPoint)
{
bIsCut = false;
}
if (pDomainGeometry == null)
{
bIsCut = false;
}
//如果需要剪切,则对面要素类和线要素类分成范围内的要素和与范围相交的要素,提高提取效率
//否则,使用featurecursor进行提取,不进行选择,相对要快
if (lblInfo != null)
{
lblInfo.Text = sInfo + "正在获得满足条件的要素，请稍候.....";
lblInfo.Refresh();
Application.DoEvents();
}
if (bIsCut)
{
pFeatLayer = new FeatureLayer();
pFeatLayer.FeatureClass = pOriFeatCls;
pFeatLayer.Name = pOriFeatCls.AliasName;
//获得选择集
pFeatSelection = ClsSelectAndQuery.GetFeatSelection(ref pFeatLayer, sSql, esriSelectionResultEnum.esriSelectionResultNew, esriSpatialRelEnum.esriSpatialRelIntersects, ref pDomainGeometry);
lFeatCount = pFeatSelection.SelectionSet.Count;
if (vProgressBar != null)
{
vProgressBar.Value = 0;
vProgressBar.Maximum = lFeatCount;
}
//获得位范围内的以及与范围相交的要素集
ClsSelectAndQuery.ClassifyFeatCursorByGeometry(ref pFeatSelection, pDomainGeometry, ref pWithINFeatCursor, pDesFeatCls.ShapeType);
// 陈昉 2009-3-12 修改 修改原因 原来的方法不能搜索到包含一此Geometry的要素
//ClassifyFeatCursorByGeometry(pFeatSelection, pDomainGeometry, pWithINFeatCursor, pCrossFeatCursor, pDesFeatCls.ShapeType)
if (lblInfo != null)
{
lblInfo.Text = sInfo + "正在输出要素，请稍候.....";
lblInfo.Refresh();
Application.DoEvents();
}
InsertFeatIntoFeatClsByCursor(ref pDesFeatCls, ref pWithINFeatCursor, true, pDomainGeometry, ref pSpatialReference, pDicField, ref vProgressBar);
//首先把位于图幅内的要素插入
//InsertFeatIntoFeatClsByCursor(pDesFeatCls, pWithINFeatCursor, True, pDomainGeometry, pSpatialReference, _
// pDicField, vProgressBar)
//'再把与范围相交的要素插入,(插入时需要进行剪切)
//InsertFeatIntoFeatClsByCursor(pDesFeatCls, pCrossFeatCursor, True, pDomainGeometry, pSpatialReference, _
// pDicField, vProgressBar)
}
else
{
//获得需要提取的要素
long lFeatCount2 = (long)lFeatCount;
pFeatCursor = ClsSelectAndQuery.GetFeatCursor(pOriFeatCls, sSql, esriSpatialRelEnum.esriSpatialRelIntersects, ref pDomainGeometry, true, ref lFeatCount2);
lFeatCount = (int)lFeatCount2;
if (vProgressBar != null)
{
vProgressBar.Maximum = lFeatCount;
vProgressBar.Value = 0;
}
if (lblInfo != null)
{
lblInfo.Text = sInfo + "正在输出要素，请稍候.....";
lblInfo.Refresh();
Application.DoEvents();
}
bInsertRight = InsertFeatIntoFeatClsByCursor(ref pDesFeatCls, ref pFeatCursor, false, pDomainGeometry, ref pSpatialReference, pDicField, ref vProgressBar);
//印骅 20081202 Insert失败，退出函数
if (bInsertRight == false)
{
functionReturnValue = -1;
return(functionReturnValue);
}
}
//杨旭斌于20080825添加，返回提取的要素个数
functionReturnValue = lFeatCount;
if ((vProgressBar != null))
{
//vProgressBar.Visible = False
vProgressBar.Value = 0;
}
pWithINFeatCursor = null;
return(functionReturnValue);
}