/// <summary>
/// ֱ��ʹ��Ƕ��ѭ���ķ�����������������˵�ǡ���������
/// </summary>
/// <param name="ipPtFeaCls">��ͼ��</param>
/// <returns></returns>
private bool SearchStupid(IFeatureClass ipPtFeaCls)
{
if (ipPtFeaCls == null) return false;
// ����Դͼ��Ҫ��
IQueryFilter ipQuery = new QueryFilterClass();
ipQuery.SubFields = "OBJECTID,Shape";
IFeatureCursor ipFeatCursor = ipPtFeaCls.Search(ipQuery, true);
IFeature ipFeature = ipFeatCursor.NextFeature();
IGeometry ipGeometry = null;
int OID1 = -1;
string str;
while (ipFeature != null)
{
ipGeometry = ipFeature.Shape;
OID1 = ipFeature.OID;
if (ipGeometry == null)
{
ipFeature = ipFeatCursor.NextFeature();
continue;
}
else
{
if (ipGeometry.GeometryType == esriGeometryType.esriGeometryPoint ||
ipGeometry.GeometryType == esriGeometryType.esriGeometryMultipoint)
{
PointXY pt = new PointXY();
IPoint ipT = (IPoint)ipGeometry;
pt.dx = ipT.X;
pt.dy = ipT.Y;
str = OID1.ToString();
m_MapOIDFeature1.Add(str, pt);
m_MapOIDFeature2.Add(str, pt);
}
}
Marshal.ReleaseComObject(ipFeature);
ipFeature = ipFeatCursor.NextFeature();
}
string rsOID, rsOID2;
PointXY rsGeometry;
PointXY rsGeometry2;
m_aryResult = new List<PointDistInfo>();
foreach (DictionaryEntry dn in m_MapOIDFeature1)
{
rsOID = (string)dn.Key;
rsGeometry = (PointXY)dn.Value;
foreach (DictionaryEntry dn2 in m_MapOIDFeature2)
{
rsOID2 = (string)dn2.Key;
rsGeometry2 = (PointXY)dn2.Value;
// ��������
double dDist = (rsGeometry2.dx - rsGeometry.dx) * (rsGeometry2.dx - rsGeometry.dx) +
(rsGeometry2.dy - rsGeometry.dy) * (rsGeometry2.dy - rsGeometry.dy);
if (rsOID != rsOID2 && Math.Sqrt(dDist) < m_pPara.dPointDist)
{
// ��ҽ����¼
PointDistInfo PtInfo = new PointDistInfo();
PtInfo.dDistance = Math.Round(Math.Sqrt(dDist), 2);
PtInfo.OID1 = Convert.ToInt32(rsOID);
PtInfo.OID2 = Convert.ToInt32(rsOID2);
m_aryResult.Add(PtInfo);
break;
}
}
}
ClearMap();
return true;
}
/// <summary>
/// 直接使用嵌套循环的方法进行搜索，所以说是“笨搜索”
/// </summary>
/// <param name="ipPtFeaCls">点图层</param>
/// <returns></returns>
private bool SearchStupid(IFeatureClass ipPtFeaCls)
{
if (ipPtFeaCls == null)
{
return(false);
}
// 遍历源图层要素
IQueryFilter ipQuery = new QueryFilterClass();
ipQuery.SubFields = "OBJECTID,Shape";
IFeatureCursor ipFeatCursor = ipPtFeaCls.Search(ipQuery, true);
IFeature ipFeature = ipFeatCursor.NextFeature();
IGeometry ipGeometry = null;
int OID1 = -1;
string str;
while (ipFeature != null)
{
ipGeometry = ipFeature.Shape;
OID1 = ipFeature.OID;
if (ipGeometry == null)
{
ipFeature = ipFeatCursor.NextFeature();
continue;
}
else
{
if (ipGeometry.GeometryType == esriGeometryType.esriGeometryPoint ||
ipGeometry.GeometryType == esriGeometryType.esriGeometryMultipoint)
{
PointXY pt = new PointXY();
IPoint ipT = (IPoint)ipGeometry;
pt.dx = ipT.X;
pt.dy = ipT.Y;
str = OID1.ToString();
m_MapOIDFeature1.Add(str, pt);
m_MapOIDFeature2.Add(str, pt);
}
}
Marshal.ReleaseComObject(ipFeature);
ipFeature = ipFeatCursor.NextFeature();
}
string rsOID, rsOID2;
PointXY rsGeometry;
PointXY rsGeometry2;
m_aryResult = new List <PointDistInfo>();
foreach (DictionaryEntry dn in m_MapOIDFeature1)
{
rsOID = (string)dn.Key;
rsGeometry = (PointXY)dn.Value;
foreach (DictionaryEntry dn2 in m_MapOIDFeature2)
{
rsOID2 = (string)dn2.Key;
rsGeometry2 = (PointXY)dn2.Value;
// 两点间距离
double dDist = (rsGeometry2.dx - rsGeometry.dx) * (rsGeometry2.dx - rsGeometry.dx) +
(rsGeometry2.dy - rsGeometry.dy) * (rsGeometry2.dy - rsGeometry.dy);
if (rsOID != rsOID2 && Math.Sqrt(dDist) < m_pPara.dPointDist)
{
// 添家结果记录
PointDistInfo PtInfo = new PointDistInfo();
PtInfo.dDistance = Math.Round(Math.Sqrt(dDist), 2);
PtInfo.OID1 = Convert.ToInt32(rsOID);
PtInfo.OID2 = Convert.ToInt32(rsOID2);
m_aryResult.Add(PtInfo);
break;
}
}
}
ClearMap();
return(true);
}
