/// <summary>创建河网，同时还记录了Tocpt2，计算了河流的层次和等级</summary>
/// <param name="CAllRiverLt">河流数据</param>
/// <returns>河网列</returns>
private List <CRiverNet> CreateRiverNetLt(List <CRiver> CAllRiverLt, double dblVerySmall)
{
List <CRiver> CMasterRiverLt = new List <CRiver>();
//找到各主干流
for (int i = 0; i < CAllRiverLt.Count; i++)
{
if (CAllRiverLt[i].CMainStream == null)
{
//没有干流的河流即为主干流
CMasterRiverLt.Add(CAllRiverLt[i]);
}
}
//建立河网列
List <CRiverNet> pRiverNetLt = new List <CRiverNet>();
for (int i = 0; i < CMasterRiverLt.Count; i++)
{
CRiverNet pRiverNet = new CRiverNet(i, CMasterRiverLt[i]); //新建河网并添加主干流
RecursiveSettleRiver(ref pRiverNet, CMasterRiverLt[i]); //递归添加属于该河网的河流
//RecursiveFindTocpt2(CMasterRiverLt[i], dblVerySmall); //找到当前河流与其各支流的相交点(属于当前河流)，并记录在支流河流数据中
CalLeverAndOrder(CMasterRiverLt[i]);
pRiverNetLt.Add(pRiverNet);
}
return(pRiverNetLt);
}
/// <summary>递归添加属于该河网的河流</summary>
/// <param name="pRiverNet">河网</param>
/// <param name="CurrentRiver">当前河流</param>
private void RecursiveSettleRiver(ref CRiverNet pRiverNet, CRiver CurrentRiver)
{
if (CurrentRiver.CTributaryLt.Count == 0)
{
return;
}
for (int i = 0; i < CurrentRiver.CTributaryLt.Count; i++)
{
pRiverNet.CRiverLt.Add(CurrentRiver.CTributaryLt[i]);
RecursiveSettleRiver(ref pRiverNet, CurrentRiver.CTributaryLt[i]);
}
}
/// <summary>建立河网间的对应河流的对应特征点关系（不包括没有对应河流的情况）</summary>
/// <param name="pCorrespondRiverNet">对应河网数据</param>
/// <param name="pParameterThreshold">阈值参数</param>
/// <remarks>判断方法：相交缓冲区多边形面积的两倍除以两缓冲区面积之和</remarks>
private void BuildCorrespondence(CCorrespondRiverNet pCorrespondRiverNet, CParameterThreshold pParameterThreshold)
{
CRiverNet pBSRiverNet = pCorrespondRiverNet.CBSRiverNet;
CRiverNet pSSRiverNet = pCorrespondRiverNet.CSSRiverNet;
pCorrespondRiverNet.CResultPtLtLt = new List <List <CPoint> >();
double dblLengthSumRatio = pBSRiverNet.CMasterStream.pPolyline.Length / pSSRiverNet.CMasterStream.pPolyline.Length;
pParameterThreshold.dblLengthSumRatio = dblLengthSumRatio;
//注意：不管主干流存不存在对应河流，都从此处开始，因为不存在对应河流则在此函数中自动不作处理
RecursiveDWExistCorrCut(pCorrespondRiverNet, pParameterThreshold, pBSRiverNet.CMasterStream);
}
public CCorrespondRiverNet(CRiverNet pCBSRiverNet, CRiverNet pCToRiverNet)
{
_CBSRiverNet = pCBSRiverNet;
_CSSRiverNet = pCToRiverNet;
}