//累积周围平均坡长算法
public void CalcCumulativeLength_New(DemData dd, byte[] outflow, bool[] nd, bool[] breakflow, float[] cumlen)
{
try
{
int rows; /*Number of rows.*/
int cols; /*Number of columns.*/
int count_while = 0; //记录循环次数
int hits, hits1 = 0;
int nw, n, ne, w, c, e, sw, s, se, count;
bool done = false;
float cumlength;
float diagcellsize;
string outflow_array;
rows = dd.imagNrows;
cols = dd.imagNcols;
diagcellsize = (float)Math.Sqrt(2.0) * dd.cellSize;
while (!done && count_while < 10000)
{
count_while++;
done = true;
hits = 0;
for (int i = 2; i < rows - 2; i++)
{
for (int j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (nd[c])
{
continue;
} //如果无值，跳出该次循环
cumlength = (float)0.0; // 累计坡长为0.0
count = 0;
outflow_array = "";
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
//西
if (outflow[w] == GlobalConstants.E && !breakflow[w] )
{
//cumlength = cumlen[w];
//outflow_array = outflow_array + "w";
//count++;
cumlength += cumlen[w];
}
//西北
if (outflow[nw] == GlobalConstants.SE && !breakflow[nw] )
{
//cumlength = cumlen[nw];
//if(outflow_array.Length>0)
// outflow_array = outflow_array + ",nw";
//else
// outflow_array = outflow_array + "nw";
//count++;
cumlength += cumlen[nw];
}
//北
if (outflow[n] == GlobalConstants.S && !breakflow[n] )
{
//cumlength = cumlen[n];
//if (outflow_array.Length > 0)
// outflow_array = outflow_array + ",n";
//else
// outflow_array = outflow_array + "n";
//count++;
cumlength += cumlen[n];
}
//东北
if (outflow[ne] == GlobalConstants.SW && !breakflow[ne] )
{
//cumlength = cumlen[ne];
//if (outflow_array.Length > 0)
// outflow_array = outflow_array + ",ne";
//else
// outflow_array = outflow_array + "ne";
//count++;
cumlength += cumlen[ne];
}
//东
if (outflow[e] == GlobalConstants.W && !breakflow[e])
{
//cumlength = cumlen[e];
//if (outflow_array.Length > 0)
// outflow_array = outflow_array + ",e";
//else
// outflow_array = outflow_array + "e";
//count++;
cumlength += cumlen[e];
}
//东南
if (outflow[se] == GlobalConstants.NW && !breakflow[se] )
{
//cumlength = cumlen[se];
//if (outflow_array.Length > 0)
// outflow_array = outflow_array + ",se";
//else
// outflow_array = outflow_array + "se";
//count++;
cumlength += cumlen[se];
}
//南
if (outflow[s] == GlobalConstants.N && !breakflow[s])
{
//cumlength = cumlen[s];
//if (outflow_array.Length > 0)
// outflow_array = outflow_array + ",s";
//else
// outflow_array = outflow_array + "s";
//count++;
cumlength += cumlen[s];
}
//西南
if (outflow[sw] == GlobalConstants.NE && !breakflow[sw] )
{
//cumlength = cumlen[sw];
//if (outflow_array.Length > 0)
//outflow_array = outflow_array + ",sw";
//else
//outflow_array = outflow_array + "sw";
//count++;
cumlength += cumlen[sw];
}
if (cumlength > 0.0)
{
if (outflow[c] == GlobalConstants.N || outflow[c] == GlobalConstants.E || outflow[c] == GlobalConstants.S ||
outflow[c] == GlobalConstants.W)
cumlength += dd.cellSize;
else if (outflow[c] == GlobalConstants.NE || outflow[c] == GlobalConstants.NW || outflow[c] == GlobalConstants.SE ||
outflow[c] == GlobalConstants.SW)
cumlength += diagcellsize;
if (cumlength > cumlen[c])
{
hits++;
done = false;
cumlen[c] = cumlength;
}
}
}
}
if (hits == hits1)
count = 10000;
hits1 = hits;
hits = 0;
//为什么要反方向重新计算呢？
for (int i = rows - 3; i >= 2; i--)
{
// SECOND PART
for (int j = cols - 3; j >= 2; j--)
{
// SECOND PART
c = i * cols + j;
if (nd[c])
{
continue;
}
cumlength = (float)0.0;
outflow_array = "";
count = 0;
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
//西北
if (outflow[nw] == GlobalConstants.SE && !breakflow[nw] )
{
//cumlength = cumlen[nw];
//outflow_array = outflow_array + "nw";
//count++;
cumlength += cumlen[nw];
}//北
if (outflow[n] == GlobalConstants.S && !breakflow[n] )
{
//cumlength = cumlen[n];
//if (outflow_array.Length > 0)
//outflow_array = outflow_array + ",n";
//else
//outflow_array = outflow_array + "n";
//count++;
cumlength += cumlen[n];
}//东北
if (outflow[ne] == GlobalConstants.SW && !breakflow[ne] )
{
//cumlength = cumlen[ne];
//if (outflow_array.Length > 0)
//outflow_array = outflow_array + ",ne";
//else
//outflow_array = outflow_array + "ne";
//count++;
cumlength += cumlen[ne];
}//西
if (outflow[w] == GlobalConstants.E && !breakflow[w] )
{
//cumlength = cumlen[w];
//if (outflow_array.Length > 0)
//outflow_array = outflow_array + ",w";
//else
//outflow_array = outflow_array + "w";
//count++;
cumlength += cumlen[w];
} //东
if (outflow[e] == GlobalConstants.W && !breakflow[e] )
{
//cumlength = cumlen[e];
//if (outflow_array.Length > 0)
//outflow_array = outflow_array + ",e";
//else
//outflow_array = outflow_array + "e";
//count++;
cumlength += cumlen[e];
}//西南
if (outflow[sw] == GlobalConstants.NE && !breakflow[sw] )
{
//cumlength = cumlen[sw];
//if (outflow_array.Length > 0)
//outflow_array = outflow_array + ",sw";
//else
//outflow_array = outflow_array + "sw";
//count++;
cumlength += cumlen[sw];
}//南
if (outflow[s] == GlobalConstants.N && !breakflow[s] )
{
//cumlength = cumlen[s];
//if (outflow_array.Length > 0)
// outflow_array = outflow_array + ",s";
//else
// outflow_array = outflow_array + "s";
//count++;
cumlength += cumlen[s];
}//东南
if (outflow[se] == GlobalConstants.NW && !breakflow[se] )
{
//cumlength = cumlen[se];
//if (outflow_array.Length > 0)
// outflow_array = outflow_array + ",se";
//else
// outflow_array = outflow_array + "se";
//count++;
cumlength += cumlen[se];
}
if (cumlength > 0.0)
{
if (outflow[c] == GlobalConstants.N || outflow[c] == GlobalConstants.E || outflow[c] == GlobalConstants.S ||
outflow[c] == GlobalConstants.W)
cumlength += dd.cellSize;
else if (outflow[c] == GlobalConstants.NE || outflow[c] == GlobalConstants.NW || outflow[c] == GlobalConstants.SE ||
outflow[c] == GlobalConstants.SW)
cumlength += diagcellsize;
if (cumlength > cumlen[c])
{
done = false;
hits++;
cumlen[c] = cumlength;
}
}
} // END for(i = 0; i < rows; i++) SECOND PART
} // END for(j = 0; j < cols, j++) SECOND PART
LogCumulativeProgress(count_while, hits1, hits);
}
}
catch (Exception ex)
{
//
MessageBox.Show(ex.ToString());
}
}
public void Calculate_L(DemData dd, float[] slopeAng, float[] slp_lgth_ft, float[] ruslel,int rusle_csle)
{
int i; /*Loop Counter.*/
int j; /*Loop Counter.*/
int c;
int rows; /*Number of rows.*/
int cols; /*Number of columns.*/
rows = dd.imagNrows;
cols = dd.imagNcols;
if(rusle_csle==1)//运行CSLE模型
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
ruslel[c] = (float)Math.Pow(slp_lgth_ft[c] / (float)22.1, TableLookUp_csle(slopeAng[c])); //x的y次幂
}
}
else//运行RUSLE
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
ruslel[c] = (float)Math.Pow(slp_lgth_ft[c] / (float)22.1, TableLookUp_rusle(slopeAng[c])); //x的y次幂
}
}
}
public void WriteSlopeExponentFile(string fileName, DemData dd, bool[] noDataMap, float[] slopeAng,int rusle_csle)
{
int rows, cols;
int i, j;
rows = dd.imagNrows;
cols = dd.imagNcols;
fp = new StreamWriter(fileName);
if (fp == null) // Handle error opening file
LogFileError(fileName, "w");
fp.WriteLine("ncols {0}", dd.ncols);
fp.WriteLine("nrows {0}", dd.nrows);
fp.WriteLine("xllcorner {0:f6}", dd.xllcorner);
fp.WriteLine("yllcorner {0:f6}", dd.yllcorner);
if (dd.cellType)
fp.WriteLine("cellsize {0:f4}", dd.cellSize);
else
fp.WriteLine("cellsize {0}", (int)dd.cellSize);
//fp.WriteLine("NODATA_value {0}", dd.intNoData);
fp.WriteLine("NODATA_value -9.9");
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
if (noDataMap[i * cols + j])
fp.Write("-9.9");
else
if(rusle_csle==1)
fp.Write(" {0:f2}", TableLookUp_csle(slopeAng[i * cols + j]));
else
fp.Write(" {0:f2}", TableLookUp_rusle(slopeAng[i * cols + j]));
}
fp.WriteLine();
}
fp.Flush();
fp.Close();
}
public void Write_Direction_Array(string fileName, ref DemData dd, ref bool[] noDataMap, ref byte[] inMap)
{
int rows, cols;
int i, j;
rows = dd.imagNrows;
cols = dd.imagNcols;
fp = new StreamWriter(fileName);
if (fp == null)
LogFileError(fileName, "w");
fp.WriteLine("ncols {0}", dd.ncols);
fp.WriteLine("nrows {0}", dd.nrows);
fp.WriteLine("xllcorner {0:f6}", dd.xllcorner);
fp.WriteLine("yllcorner {0:f6}", dd.yllcorner);
if (dd.cellType)
fp.WriteLine("cellsize {0:f4}", dd.cellSize);
else
fp.WriteLine("cellsize {0}", (int)dd.cellSize);
fp.WriteLine("NODATA_value -9");
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
if (noDataMap[i * cols + j])
fp.Write(" -9");
else
fp.Write(" {0}", (int)inMap[i * cols + j]);
}
fp.WriteLine();
}
fp.Flush();
fp.Close();
}
public void SetInFlow(DemData dd, ref bool[] noDataMap, ref byte[] outMap, ref byte[] inMap)
{
int rows; /*Number of rows.*/
int cols; /*Number of columns.*/
int nw, n, ne, w, c, e, sw, s, se;
rows = dd.imagNrows;
cols = dd.imagNcols;
for (int i = 2; i < rows - 2; i++)
{
for (int j = 2; j < cols - 2; j++)
{
c = i * cols + j;
inMap[c] = 0;
if (noDataMap[c])
{
continue;
}
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
//西北
if (outMap[nw] == GlobalConstants.SE)
inMap[c] += GlobalConstants.NW;
//北
if (outMap[n] == GlobalConstants.S)
inMap[c] += GlobalConstants.N;
//东北
if (outMap[ne] == GlobalConstants.SW)
inMap[c] += GlobalConstants.NE;
//西
if (outMap[w] == GlobalConstants.E)
inMap[c] += GlobalConstants.W;
//东
if (outMap[e] == GlobalConstants.W)
inMap[c] += GlobalConstants.E;
//西南
if (outMap[sw] == GlobalConstants.NE)
inMap[c] += GlobalConstants.SW;
//南
if (outMap[s] == GlobalConstants.N)
inMap[c] += GlobalConstants.S;
//东南
if (outMap[se] == GlobalConstants.NW)
inMap[c] += GlobalConstants.SE;
}
}
}
//没有流向才有截断
public void WithoutSlopeCutGrid(DemData dd, bool[] noDataMap, bool[] flowCut)
{
int i, j;
int c, ft;
int rows;
int cols;
float slpEndFactor;
rows = dd.imagNrows;
cols = dd.imagNcols;
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (noDataMap[c])
{
flowCut[c] = true;
continue;
}
else
{
flowCut[c] = false;
}
}
}
}
public bool FillSinks(DemData demData, ref bool[] noDataMap, ref float[] demMap)
{
bool flag = false;
int i; /*Loop Counter.*/
int j; /*Loop Counter.*/
int rows; /*Number of rows.*/
int cols; /*Number of columns.*/
float min; /*Temp value */
float old; /*temp debugging value */
int nw, n, ne, w, c, e, sw, s, se;
rows = demData.imagNrows;
cols = demData.imagNcols;
float Min = (float)100000.0;
min = Min;
for (i = 2; i < demData.imagNrows - 2; i++)
for (j = 2; j < demData.imagNcols - 2; j++)
{
c = i * cols + j;
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
if (noDataMap[c])
continue;
min = (float)100000.0; //放一个最大值，
//判断周围是否有值，只要有一个无值则继续循环
if (noDataMap[nw] && noDataMap[n] && noDataMap[ne] &&
noDataMap[e] && noDataMap[se] && noDataMap[s]
&& noDataMap[sw] && noDataMap[w])
{
continue;
}
min = demMap[nw] < min ? demMap[nw] : min;
min = demMap[n] < min ? demMap[n] : min;
min = demMap[ne] < min ? demMap[ne] : min;
min = demMap[e] < min ? demMap[e] : min;
min = demMap[se] < min ? demMap[se] : min;
min = demMap[s] < min ? demMap[s] : min;
min = demMap[sw] < min ? demMap[sw] : min;
min = demMap[w] < min ? demMap[w] : min;
// 如果最小值大于中心值，说明是洼地，则进行填充
if (min > demMap[c])
{
flag = true;
old = demMap[c];
demMap[c] = min;
LogFill(i - 2, j - 2, demData.dataPrecision, old, min);
}
}
return flag;
}
public void ReadDEMElevations(ref DemData demData, ref float[] demMap, ref bool[] noDataMap)
{
string[] tmp = new string[demData.ncols];
float[] tmp1 = new float[demData.nrows * demData.ncols];
/****************************/
string aString;
int count = 0;
while ((aString = demFile.ReadLine()) != null)
{
string[] sArray = aString.Split(' ');
int i = 0;
while (i < sArray.Length)
{
//Debug.WriteLine("the string:" + sArray [i]);
//tmp1[count] = float.Parse(sArray[i]);
if (sArray[i] != "")
{
tmp1[count] = Convert.ToSingle(sArray[i]);
count++;
i++;
}
else
{
i++;
}
}
sArray = null;
if (count == demData.nrows * demData.ncols)
break;
}
/****************************/
int real = 0;
int imag = 0;
for (int i = 2; i < demData.imagNrows - 2; i++)
for (int j = 2; j < demData.imagNcols - 2; j++)
{
imag = i * demData.imagNcols + j;
real = (i - 2) * demData.ncols + (j - 2);
if (tmp1[real] != demData.floatNoData)
demMap[imag] = tmp1[real];
else
demMap[imag] = (float)32767.0;
noDataMap[imag] = (tmp1[real] == demData.floatNoData);
if (demMap[imag] < 0.0)
{
LogNegativeDEM(i - 2, j - 2, tmp1[real]);
}
}
tmp1 = null;
tmp = null;
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
demFile.Close();
}
public void downSlope(DemData demData, bool[] noDataMap, float[] demMap, ref float[] slopeAng, ref float[] cellLen, ref byte[] outFlow)
{
float angle;
float bestAngle;
float bestCellLen;
byte bestDirection;
float diagCellSize; /* Diagonal cell size.*/
float deg; /* Change to degrees.*/
float cellSize; /* Cell Size.*/
int rows; /* Number of rows.*/
int cols; /* Number of columns.*/
int nw, n, ne, w, c, e, sw, s, se;
rows = demData.imagNrows;
cols = demData.imagNcols;
cellSize = demData.cellSize;
diagCellSize = cellSize * (float)1.4142136; // for NW, NE, SE, SW
deg = (float)57.29577951308;
bool flag = false;
//因为数组多增加了两周，所以在处理的时候不用考虑越界，这样程序写起来就简单多了
for (int i = 2; i < rows - 2; i++)
{
for (int j = 2; j < cols - 2; j++)
{
//maxDiffer = (float)-1.0;
bestCellLen = (float)0.0;
bestDirection = (byte)0.0;
bestAngle = 0.0f;
angle = 0.0f;
c = i * cols + j;
if (noDataMap[c])
{
slopeAng[c] = (float)0.0;
cellLen[c] = (float)0.0;
outFlow[c] = (byte)0.0;
continue;
}
flag = false;
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
/*张杰的修改*/
//西
if (!noDataMap[w] && demMap[w] < demMap[c])
{
//angle = deg * (float)Math.Atan((demMap[c] - demMap[w]) / cellSize);
if (outFlow[w] == GlobalConstants.E)
{
// 这里防止对流现象的出现
// zhangjie.10.06.10
}
else
{
//differ = demMap[c] - demMap[w];
angle = deg * (float)Math.Atan((demMap[c] - demMap[w]) / cellSize);
if (angle > bestAngle)
{
bestAngle = angle;
bestDirection = GlobalConstants.W;
bestCellLen = cellSize;
flag = true;
}
if (angle == 0.0 && !flag)
{
bestAngle = GlobalConstants.MIN_SLOPE;
bestDirection = GlobalConstants.W;
bestCellLen = cellSize;
flag = true;
}
}
}//西北
if (!noDataMap[nw] && demMap[nw] < demMap[c])
{
if (outFlow[nw] == GlobalConstants.SE)
{
}
else
{
angle = deg * (float)Math.Atan((demMap[c] - demMap[nw]) / diagCellSize);
//differ = demMap[c] - demMap[nw];
if (angle > bestAngle)
{
bestAngle = angle;
bestDirection = GlobalConstants.NW;
bestCellLen = diagCellSize;
flag = true;
}
if (angle == 0.0 && !flag)
{
bestAngle = GlobalConstants.MIN_SLOPE;
bestDirection = GlobalConstants.NW;
bestCellLen = diagCellSize;
flag = true;
}
}
}//北
if (!noDataMap[n] && demMap[n] < demMap[c])
{
if (outFlow[n] == GlobalConstants.S)
{
// Debug.WriteLine("outFlow[n] = "+outFlow[n].ToString());
}
else
{
angle = deg * (float)Math.Atan((demMap[c] - demMap[n]) / cellSize);
//differ = demMap[c] - demMap[n];
if (angle > bestAngle)
{
bestAngle = angle;
bestDirection = GlobalConstants.N;
bestCellLen = cellSize;
flag = true;
}
if (angle == 0.0 && !flag)
{
bestAngle = GlobalConstants.MIN_SLOPE;
bestDirection = GlobalConstants.N;
bestCellLen = cellSize;
flag = true;
}
}
}//东北
if (!noDataMap[ne] && demMap[ne] < demMap[c])
{
if (outFlow[ne] == GlobalConstants.SW)
{
}
else
{
angle = deg * (float)Math.Atan((demMap[c] - demMap[ne]) / diagCellSize);
//differ = demMap[c] - demMap[ne];
if (angle > bestAngle)
{
bestAngle = angle;
bestDirection = GlobalConstants.NE;
bestCellLen = diagCellSize;
flag = true;
}
if (angle == 0.0 && !flag)
{
bestAngle = GlobalConstants.MIN_SLOPE;
bestDirection = GlobalConstants.NE;
bestCellLen = diagCellSize;
flag = true;
}
}
}//东
if (!noDataMap[e] && demMap[e] < demMap[c])
{
angle = deg * (float)Math.Atan((demMap[c] - demMap[e]) / cellSize);
//differ = demMap[c] - demMap[e];
if (angle > bestAngle)
{
bestAngle = angle;
bestDirection = GlobalConstants.E;
bestCellLen = cellSize;
flag = true;
}
if (angle == 0.0 && !flag )
{
bestAngle = GlobalConstants.MIN_SLOPE;
bestDirection = GlobalConstants.E;
bestCellLen = cellSize;
flag = true;
}
}//东南
if (!noDataMap[se] && demMap[se] < demMap[c])
{
angle = deg * (float)Math.Atan((demMap[c] - demMap[se]) / diagCellSize);
//differ = demMap[c] - demMap[se];
if (angle > bestAngle)
{
bestAngle = angle;
bestDirection = GlobalConstants.SE;
bestCellLen = diagCellSize;
flag = true;
}
if (angle == 0.0 && !flag)
{
bestAngle = GlobalConstants.MIN_SLOPE;
bestDirection = GlobalConstants.SE;
bestCellLen = diagCellSize;
flag = true;
}
}//南
if (!noDataMap[s] && demMap[s] < demMap[c])
{
angle = deg * (float)Math.Atan((demMap[c] - demMap[s]) / cellSize);
//differ = demMap[c] - demMap[s];
if (angle > bestAngle)
{
bestAngle = angle;
bestDirection = GlobalConstants.S;
bestCellLen = cellSize;
flag = true;
}
if (angle == 0.0 && !flag)
{
bestAngle = GlobalConstants.MIN_SLOPE;
bestDirection = GlobalConstants.S;
bestCellLen = cellSize;
flag = true;
}
}
//西南
if (!noDataMap[sw] && demMap[sw] < demMap[c])
{
angle = deg * (float)Math.Atan((demMap[c] - demMap[sw]) / diagCellSize);
//differ = demMap[c] - demMap[sw];
if (angle > bestAngle)
{
bestAngle = angle;
bestDirection = GlobalConstants.SW;
bestCellLen = diagCellSize;
flag = true;
}
if (angle == 0.0 && !flag)
{
bestAngle = GlobalConstants.MIN_SLOPE;
bestDirection = GlobalConstants.SW;
bestCellLen = diagCellSize;
flag = true;
}
}
if (flag == false)//这里以前为maxDiffer == 0.0
{
//Debug.WriteLine("0");
//Debug.WriteLine("X = "+ i.ToString() + "Y = " + j.ToString());
slopeAng[c] = GlobalConstants.MIN_SLOPE; //float(0.1)
//09.12.01上午修改
outFlow[c] = GlobalConstants.NONE;
//Debug.WriteLine("demmap[w] = " + demMap[w].ToString());
//Debug.WriteLine("outFlow[n] = " + outFlow[n].ToString());
if (!noDataMap[w] && demMap[w] <= demMap[c])
{
cellLen[c] = cellSize;
}
else if (!noDataMap[nw] && demMap[nw] <= demMap[c])
{
cellLen[c] = diagCellSize;
}
else if (!noDataMap[n] && demMap[n] <= demMap[c])
{
//Debug.WriteLine("n");
cellLen[c] = cellSize;
}
else if (!noDataMap[ne] && demMap[ne] <= demMap[c])
{
//Debug.WriteLine("ne");
cellLen[c] = diagCellSize;
}
else if (!noDataMap[e] && demMap[e] <= demMap[c])
{
// Debug.WriteLine("e");
cellLen[c] = cellSize;
}
else if (!noDataMap[se] && demMap[se] <= demMap[c])
{
//Debug.WriteLine("se");
cellLen[c] = diagCellSize;
}
else if (!noDataMap[se] && demMap[se] <= demMap[c])
{
//Debug.WriteLine("se");
cellLen[c] = diagCellSize;
}
else if (!noDataMap[s] && demMap[s] <= demMap[c])
{
//Debug.WriteLine("s");
cellLen[c] = cellSize;
}
else if (!noDataMap[sw] && demMap[sw] <= demMap[c])
{
//Debug.WriteLine("sw");
cellLen[c] = diagCellSize;
}
else
{
cellLen[c] = diagCellSize;
}
}
else
{
slopeAng[c] = bestAngle;
cellLen[c] = bestCellLen;
outFlow[c] = bestDirection;
}
}
}
}
//符合坡度变化就设置截断点
public void BuildSlopeCutGrid(DemData dd, byte[] outFlow, float[] slopeAng, bool[] noDataMap, bool[] flowCut)
{
int i, j;
int c, ft;
int rows;
int cols;
float slpEndFactor;
rows = dd.imagNrows;
cols = dd.imagNcols;
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (noDataMap[c])
{
flowCut[c] = true;
continue;
}
switch (outFlow[c])
{
case GlobalConstants.E:
ft = c + 1;
break;
case GlobalConstants.SE:
ft = c + cols + 1;
break;
case GlobalConstants.S:
ft = c + cols;
break;
case GlobalConstants.SW:
ft = c + cols - 1;
break;
case GlobalConstants.W:
ft = c - 1;
break;
case GlobalConstants.NW:
ft = c - cols - 1;
break;
case GlobalConstants.N:
ft = c - cols;
break;
case GlobalConstants.NE:
ft = c - cols + 1;
break;
default:
flowCut[c] = true;
continue;
};
slpEndFactor = slopeAng[c] < 2.8624 ? dd.scf_lt5 : dd.scf_ge5;
flowCut[c] = slopeAng[ft] < slopeAng[c] * slpEndFactor;
//flowCut[c] = false;
}
}
}
public void ConvertLengthToFeet(DemData dd, float[] slp_len_cum, float[] slp_lgth_ft)
{
int i; /*Loop Counter.*/
int j; /*Loop Counter.*/
int c;
int rows; /*Number of rows.*/
int cols; /*Number of columns.*/
/*张杰的修改*/
rows = dd.imagNrows;
cols = dd.imagNcols;
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
slp_lgth_ft[c] = slp_len_cum[c] / (float)0.3048;
}
}
}
public void Calculate_S(DemData dd, float[] downSlpAng, float[] rusles,int rusle_csle)
{
int i; // Loop Counter
int j; // Loop Counter
int c;
int rows; // Number of rows
int cols; // Number of columns
float deg;
deg = (float)57.2958; // ASK RICK
rows = dd.imagNrows;
cols = dd.imagNcols;
if(rusle_csle==1)
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (downSlpAng[c] >= 10)
rusles[c] = (float)(21.9 * (Math.Sin(downSlpAng[c] / deg)) - (float)0.96);
else if (downSlpAng[c] >= 5)
rusles[c] = (float)(16.8 * (Math.Sin(downSlpAng[c] / deg)) - (float)0.50);
else
rusles[c] = (float)(10.8 * (Math.Sin(downSlpAng[c] / deg)) + (float)0.03);
}
}
else
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (downSlpAng[c] >= 5.1428)
rusles[c] = (float) (16.8 * (Math.Sin(downSlpAng[c] / deg)) - (float)0.50);
else
rusles[c] = (float) (10.8 * (Math.Sin(downSlpAng[c] / deg)) + (float)0.03);
}
}
}
public void Calculate_LS2(DemData dd, float[] ruslel, float[] rusles, float[] ruslels2)
{
int i; /*Loop Counter.*/
int j; /*Loop Counter.*/
int c;
int rows; /*Number of rows.*/
int cols; /*Number of columns.*/
rows = dd.imagNrows;
cols = dd.imagNcols;
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
//ruslels2[c] = (float)((int)(ruslel[c] * rusles[c] * 100 + 0.5));
ruslels2[c] = (float)((int)(ruslel[c] * rusles[c] * 100 + 0.5)/100);
}
}
}
////////////////////////////////////////////////////////////////
/*****************************LS*******************************/
////////////////////////////////////////////////////////////////
//public void LSBegin(string inPath, string outPath, string prefix, bool ifExcessFile, bool ifRepair, float lessThan5, float above5, bool unit, bool fillWay,bool cumway,bool ExportAll,Object form)
//
public void LSBegin(string inPath, string outPath, string prefix, bool ifRepair, float lessThan5, float above5, bool unit, bool fillWay, bool flowcut, bool fillsink, float threshold, bool CumulatedWay, int RUSLE_CSLE, bool Channel_Consider, bool ExportAll, CheckBox[] MyCheckBox, Object form)
{
Form1 form1 = form as Form1;
form1.form2.progressTextBox.Text = "准备读入数据Loading DEM……";
form1.form2.progressBar.Visible = true;
form1.form2.progressBar.Value = 0;
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
DemData demData = new DemData();
demData.fillWay = fillWay;
demData.inPath = inPath;
demData.flowcut = flowcut;
//下载数据源基本信息
form1.form2.progressTextBox.Text = "获取数据源基本信息Checking basic info……";
form1.form2.progressTextBox.Update();
LoadDEMHeaderData(demData.inPath, ref demData);
demData.preOutPath = outPath + prefix;
demData.scf_lt5 = lessThan5;
demData.scf_ge5 = above5;
demData.meterOrFeet = unit;
demData.ifRepair= ifRepair;//是否修复
demData.threshold = threshold;
string logFilePath = String.Concat(outPath, "\\", prefix, "LogFile.txt");//日志文件路径
//打开日志文件
OpenLogFile(logFilePath);
LogStartUp(demData);
LogDemHeader(demData);
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "申请内存空间Applying for new memory......";
form1.form2.progressTextBox.Update();
//开辟空间
float[] demMap = new float[demData.imagNrows * demData.imagNcols];
bool[] noDataMap = new bool[demData.imagNrows * demData.imagNcols];
//开辟空间失败，写入日志文件，并退出程序
if (demMap.Length == 0)
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "DEM_Map"); //写入日志文件
if (noDataMap.Length == 0)
LogFailedExit(demData.imagNcols * demData.imagNrows, 1, "bool", "NODATA Grid Map"); //写入日志文件
//对最外两层填充为无值
#region FillAroundCell
{
int c = 0;
for (int i = 0; i < demData.imagNrows; i++)
for (int j = 0; j < demData.imagNcols; j++)
{
if (i < 2 || i > (demData.imagNrows - 3))
{
c = i * demData.imagNcols + j;
if (demData.noDateType)
{
demMap[c] = demData.floatNoData;
}
else
{
demMap[c] = demData.intNoData;
}
noDataMap[c] = true;//填充无值点
}
else
{
//不是第一行和最后一行
if (j < 2 || (j > demData.imagNcols - 3))
{
c = i * demData.imagNcols + j;
if (demData.noDateType)
{
demMap[c] = demData.floatNoData;
}
else
{
demMap[c] = demData.intNoData;
}
noDataMap[c] = true;
}
}
}
}
#endregion
form1.form2.progressTextBox.Text = "读取DEM......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
ReadDEMElevations(ref demData, ref demMap, ref noDataMap); //读取DEM
//Console.WriteLine("4");
form1.form2.progressTextBox.Text = "核查DEM的数据类型Checking DEM data types......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
demData.floatOrInt = VerifyDEMDataType(ref demData); //核实DEM的数据类型
LogDataTypeDEM(demData); // 将数据类型写入日志文件
form1.form2.progressTextBox.Text = "填充内部无值区Filling inner nodata area......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
//填充内部无值区
LocateInteriorNODATACells(demData, ref noDataMap, ref demMap);
if(ExportAll)//if (demData.ifExcessFile)
{
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
form1.form2.progressTextBox.Text = "重写修订后的DEM数据Saving fixed DEM......";
form1.form2.progressTextBox.Update();
string pathFileName = String.Concat(outPath, "\\", prefix, "orig_dem.txt");
WriteDEMGrid(pathFileName, demData, noDataMap, demMap); //打开一个文件，写DEM
LogWroteDEM(pathFileName); //写日志文件
}
form1.form2.progressTextBox.Text = "洼地填充，环面周围8个点Filling......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
bool sf = true;
bool af = true;
//如果选择了不进行洼地填充
if (fillsink == false)
{
sf = false;
af = false;
}
while (sf && af)
{
sf = FillSinks(demData, ref noDataMap, ref demMap); //填充洼地周围8个点
af = AnnulusFill(demData, ref noDataMap, ref demMap); //填充环面周围16个点
}
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
if (ExportAll)//if (demData.ifExcessFile)
{
form1.form2.progressTextBox.Text = "写填充完的DEM数据Saving Filled DEM......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
string demFill = String.Concat(outPath, "\\", prefix, "DemFill.txt");
WriteDEMGrid(demFill, demData, noDataMap, demMap); //写填充完的DEM数据
LogWroteDEM(demFill); //写日志文件
}
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "申请内存空间Applying for new memory......";
form1.form2.progressTextBox.Update();
float[] slopeAng = new float[demData.imagNcols * demData.imagNrows];//坡度
if (slopeAng == null)
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "slope angle");
float[] slopeLen = new float[demData.imagNcols * demData.imagNrows];//坡长
if (slopeLen == null)
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "cell length");
byte[] inFlow = new byte[demData.imagNcols * demData.imagNrows];//流入
if (inFlow == null)
LogFailedExit(demData.imagNcols * demData.imagNrows, 1, "FLOWTYPE", "inflow direction");
byte[] outFlow = new byte[demData.imagNcols * demData.imagNrows];//流出
if (outFlow == null)
LogFailedExit(demData.imagNcols * demData.imagNrows, 1, "FLOWTYPE", "outflow direction");
bool[] flowFlag = new bool[demData.imagNcols * demData.imagNrows];//因子
if (flowFlag == null)
LogFailedExit(demData.imagNcols * demData.imagNrows, 1, "bool", "flow cutoff rrid map");
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "对数据进行缓冲区处理Bufferring......";
form1.form2.progressTextBox.Update();
//初始化最外两层
#region
{
int c = 0;
for (int i = 0; i < demData.imagNrows; i++)
for (int j = 0; j < demData.imagNcols; j++)
{
c = i * demData.imagNcols + j;
if (i < 2 || i > (demData.imagNrows - 3))
{
slopeAng[c] = (float)0.0;
slopeLen[c] = (float)0.0;
outFlow[c] = (byte)0;
inFlow[c] = (byte)0;
flowFlag[c] = false;
}
else if (j < 2 || j > (demData.imagNcols - 3))
{
slopeAng[c] = (float)0.0;
slopeLen[c] = (float)0.0;
outFlow[c] = (byte)0;
inFlow[c] = (byte)0;
flowFlag[c] = false;
}
}
}
#endregion
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "获取坡度，流向Calculating slope angle and slope aspect......";
form1.form2.progressTextBox.Update();
downSlope(demData, noDataMap, demMap, ref slopeAng, ref slopeLen, ref outFlow); //获取坡度，坡长，流向
if (ExportAll)//if (demData.ifExcessFile)
{
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
form1.form2.progressTextBox.Text = "写坡长文件Saving slope length......";
form1.form2.progressTextBox.Update();
string cell_len = String.Concat(outPath, "\\", prefix, "cell_len.txt");
WriteSlopeLenFile(cell_len, ref demData, ref noDataMap, ref slopeLen); //打开并写坡长文件，然后关闭
LogWroteDEM(cell_len); //写日志文件
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
form1.form2.progressTextBox.Text = "写坡长指数文件Saving slope exponent......";
form1.form2.progressTextBox.Update();
string slp_exp = String.Concat(outPath, "\\", prefix, "slp_exp.txt");
WriteSlopeExponentFile(slp_exp, demData, noDataMap, slopeAng,RUSLE_CSLE); //计算坡长指数m
LogWroteDEM(slp_exp); //写日志文件
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
form1.form2.progressTextBox.Text = "写坡度因子文件Saving S factor......";
form1.form2.progressTextBox.Update();
string slp_fac = String.Concat(outPath, "\\", prefix, "slp_fac.txt");
WriteSlopeFactorFile(slp_fac, demData, noDataMap, slopeAng); //写坡度因子
LogWroteDEM(slp_fac); //写日志文件
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
form1.form2.progressTextBox.Text = "写坡向数据文件Saving outflow......";
form1.form2.progressTextBox.Update();
string out_flow = String.Concat(outPath, "\\", prefix, "outflow.txt");
WriteDirectionArray(out_flow, ref demData, ref noDataMap, ref outFlow); //写坡向数组
LogWroteDEM(out_flow); //写日志文件
}
if (MyCheckBox[1].Checked )
{
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
form1.form2.progressTextBox.Text = "写坡度文件Saving slope angle......";
form1.form2.progressTextBox.Update();
string slp_ang = String.Concat(outPath, "\\", prefix, "slp_ang.txt");
WriteSlopeAngFile(slp_ang, demData, noDataMap, slopeAng); //打开并写坡度文件，然后关闭
LogWroteDEM(slp_ang); //写日志文件
}
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "计算流入Calculating inflow......";
form1.form2.progressTextBox.Update();
SetInFlow(demData, ref noDataMap, ref outFlow, ref inFlow); //设置流入
if(ExportAll)//if (demData.ifExcessFile)
{
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
form1.form2.progressTextBox.Text = "写坡向数据Saving inflow......";
form1.form2.progressTextBox.Update();
string in_flow = String.Concat(outPath, "\\", prefix, "inflow.txt");
WriteDirectionArray(in_flow, ref demData, ref noDataMap, ref inFlow); //写坡向数组
LogWroteDEM(in_flow); //写日志文件
}
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "建立坡度单元Calculating cell slope length......";
form1.form2.progressTextBox.Update();
if (flowcut)//是否设置了截断
{
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
form1.form2.progressTextBox.Text = "正在获取河网Calculating channel networks......";
form1.form2.progressTextBox.Update();
BuildSlopeCutGrid(demData, outFlow, slopeAng, noDataMap, flowFlag);
if (Channel_Consider)
{
Int32[] ChannelNetworks = new Int32[demData.imagNcols * demData.imagNrows];
CalcChannelNetworks(demData, ref ChannelNetworks, outFlow, noDataMap);
ReBuildSlopeCutGrid(demData, outFlow, slopeAng, noDataMap, flowFlag, ChannelNetworks, threshold);//建立截断单元
if (ExportAll)//if (demData.ifExcessFile)
{
form1.form2.progressTextBox.Text = "写河网数据Saving Channel networks......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
string Channel = String.Concat(outPath, "\\", prefix, "flowaccu.txt");
WriteDEMGrid(Channel, demData, noDataMap, ChannelNetworks); //写河网数据
LogWroteDEM(Channel); //写日志文件
}
ChannelNetworks = new int[1];
ChannelNetworks = null;
}
}
else
{
WithoutSlopeCutGrid(demData, noDataMap, flowFlag);//没有截断
}
if(ExportAll)//if (demData.ifExcessFile)
{
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "建立坡度单元Calculating ......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Maximum++;
string slp_cut = String.Concat(outPath, "\\", prefix, "slp_cut.txt");
WriteBoolGrid(slp_cut, demData, noDataMap, flowFlag); //写布尔单元
LogWroteDEM(slp_cut); //写日志文件
}
demMap = new float[1];
demMap=null;
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "申请内存空间Applying for new memory......";
form1.form2.progressTextBox.Update();
float[] cumlen = new float[demData.imagNcols * demData.imagNrows];
if (cumlen == null)
{
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "cumulative Length"); //申请内存空间失败写日志
}
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "设置缓冲区Buffering......";
form1.form2.progressTextBox.Update();
//外围填充
#region FillAround
{
int c = 0;
for (int i = 0; i < demData.imagNrows; i++)
{
for (int j = 0; j < demData.imagNcols; j++)
{
c = i * demData.imagNcols + j;
if (i < 2 || i > demData.imagNrows - 3)
{
cumlen[c] = (float)0.0;
}
else if (j < 2 || j > demData.imagNcols - 3)
{
cumlen[c] = (float)0.0;
}
}
}
}
#endregion
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "初始化累积坡长文件Initial slope length......";
form1.form2.progressTextBox.Update();
InitCumulativeLength(demData, inFlow, outFlow, noDataMap,flowFlag ,slopeLen,ref cumlen); //初始化累积坡长文件
slopeLen= new float[1];
slopeLen= null;
if(ExportAll)//if (demData.ifExcessFile)
{
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "写坡长文件Saving initial slope length......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Maximum++;
string init_len = String.Concat(outPath, "\\", prefix, "init_len.txt");
WriteSlopeLenFile(init_len, ref demData, ref noDataMap, ref cumlen); //写坡长文件
LogWroteDEM(init_len); //写日志文件
}
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "计算累积坡长Calculating slope length......";
form1.form2.progressTextBox.Update();
if (CumulatedWay)
CalcCumulativeLength(demData, outFlow, noDataMap, flowFlag, cumlen); //计算最长累计坡长!!!!!!!
else
CalcCumulativeLength_Sum(demData, outFlow, noDataMap, flowFlag, cumlen); //计算最大累计坡长!!!!!!!
if (MyCheckBox[2].Checked)
{
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "计算累积坡长Calculating slope length......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Maximum++;
string slp_len = String.Concat(outPath, "\\", prefix, ".txt");//20111129春梅要求与DEM文件名一致
WriteSlopeLenFile(slp_len, ref demData, ref noDataMap, ref cumlen); //写坡长文件
LogWroteDEM(slp_len); //写日志文件
}
outFlow = new byte[1];
outFlow = null;
inFlow = new byte[1];
inFlow = null;
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "申请内存空间Applying for new memory......";
form1.form2.progressTextBox.Update();
float[] slp_lgth_ft = new float[demData.imagNcols * demData.imagNrows];
if (slp_lgth_ft == null)
{
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "cumulative Length in Feet");
}
if (!demData.meterOrFeet)
{
form1.form2.progressTextBox.Text = "进行单位转换......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
ConvertLengthToFeet(demData, cumlen, slp_lgth_ft); //当前值除以0.3048的变换meter->feet的变化
if (demData.ifExcessFile)
{
form1.form2.progressTextBox.Text = "写坡长(feet)......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
string slp_in_ft = String.Concat(outPath, "\\", prefix, "slp_in_ft.txt");
WriteSlopeLenFeet(slp_in_ft, demData, noDataMap, slp_lgth_ft); //写坡长（单位feet）
LogWroteDEM(slp_in_ft); //写日志文件
}
cumlen = new float[1];
cumlen = null;
}
form1.form2.progressTextBox.Text = "申请内存空间Applying for new memory......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
float[] ruslel = new float[demData.imagNcols * demData.imagNrows];
if (ruslel == null)
{
if(RUSLE_CSLE==1)
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "CSLE L"); //申请内存单元失败后写日志文件
else
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "RUSLE L"); //申请内存单元失败后写日志文件
}
form1.form2.progressTextBox.Text = "设置缓冲区Buffering......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
//外围赋值
#region
{
int c = 0;
for (int i = 0; i < demData.imagNrows; i++)
for (int j = 0; j < demData.imagNcols; j++)
{
c = i * demData.imagNcols + j;
if (i < 2 || i > demData.imagNrows - 3)
ruslel[c] = (float)0.0;
else if (j < 2 || j > demData.imagNcols - 3)
ruslel[c] = (float)0.0;
}
}
#endregion
if (!demData.meterOrFeet)
{
form1.form2.progressTextBox.Text = "计算(feet)......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
Calculate_CLSE_L_Feet(demData, slopeAng, slp_lgth_ft, ruslel); //计算csle(feet)
//计算rusle(feet)
}
else
{
form1.form2.progressTextBox.Text = "计算(meter)......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
Calculate_L(demData, slopeAng, cumlen, ruslel,RUSLE_CSLE); //计算csle/rusle(meter)
}
if (!demData.meterOrFeet)
{
slp_lgth_ft = new float[1];
slp_lgth_ft = null;
}
else
{
cumlen = new float[1];
cumlen = null;
}
//if (demData.ifExcessFile)
if (MyCheckBox[4].Checked)
{
form1.form2.progressTextBox.Text = "写坡长因子文件Saving L factor......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
string rusle_l;
if(RUSLE_CSLE==1)//计算csle
rusle_l = String.Concat(outPath, "\\", prefix, "CSLE_L.txt");
else
rusle_l = String.Concat(outPath, "\\", prefix, "RUSLE_L.txt");
Write_FloatGrid(rusle_l, demData, noDataMap, ruslel); //将rusle1储存为浮点型
LogWroteDEM(rusle_l); //写日志文件
}
//Console.WriteLine("8");
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "申请内存空间Applying for new memory......";
form1.form2.progressTextBox.Update();
float[] rusles = new float[demData.imagNcols * demData.imagNrows];
if (rusles == null)
{
if(RUSLE_CSLE==1)
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "CLSE S"); //申请内存空间失败写日志
else
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "RUSLE S");
}
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "设置缓冲区Buffering......";
form1.form2.progressTextBox.Update();
//外围填充
#region
{
int c = 0;
for (int i = 0; i < demData.imagNrows; i++)
for (int j = 0; j < demData.imagNcols; j++)
{
c = i * demData.imagNcols + j;
if (i < 2 || i > demData.imagNrows - 3)
rusles[c] = (float)0.0;
else if (j < 2 || j > demData.imagNcols - 3)
rusles[c] = (float)0.0;
}
}
#endregion
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "计算坡度因子Calculating S factor......";
form1.form2.progressTextBox.Update();
Calculate_S(demData, slopeAng, rusles,RUSLE_CSLE); //
slopeAng = new float[1];
slopeAng = null;
if (MyCheckBox[3].Checked)
{
form1.form2.progressTextBox.Text = "写坡度因子文件Saving S factor......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
form1.form2.progressBar.Maximum++;
string rusle_s;
if(RUSLE_CSLE==1)
rusle_s = String.Concat(outPath, "\\", prefix, "CSLE_S.txt");
else
rusle_s = String.Concat(outPath, "\\", prefix, "RUSLE_S.txt");
Write_FloatGrid(rusle_s, demData, noDataMap, rusles); //将rusle1储存为浮点型
LogWroteDEM(rusle_s); //写日志文件
}
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "申请内存空间Applying for new memory......";
form1.form2.progressTextBox.Update();
float[] ruslels = new float[demData.imagNcols * demData.imagNrows];
if (ruslels == null)
{
if(RUSLE_CSLE==1)
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "CSLE LS"); //申请内存空间失败写日志
else
LogFailedExit(demData.imagNcols * demData.imagNrows, 4, "float", "RUSLE LS");
}
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "设置缓冲区Buffering......";
form1.form2.progressTextBox.Update();
//外围填充
#region
{
int c = 0;
for (int i = 0; i < demData.imagNrows; i++)
for (int j = 0; j < demData.imagNcols; j++)
{
c = i * demData.imagNcols + j;
if (i < 2 || i > demData.imagNrows - 3)
ruslels[c] = (float)0.0;
else if (j < 2 || j > demData.imagNcols - 3)
ruslels[c] = (float)0.0;
}
}
#endregion
form1.form2.progressTextBox.Text = "计算坡度坡长Calculating LS factor......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
Calculate_LS2(demData, ruslel, rusles, ruslels); //将rusle2储存
ruslel = new float[1];
ruslel = null;
if (MyCheckBox[5].Checked)
{
form1.form2.progressTextBox.Text = "写坡度坡长文件Save LS factor......";
form1.form2.progressTextBox.Update();
form1.form2.progressBar.Value++;
string ruslels2;
if(RUSLE_CSLE==1)
ruslels2 = String.Concat(outPath, "\\", prefix, "CSLE_LS.txt");
else
ruslels2 = String.Concat(outPath, "\\", prefix, "RUSLE_LS.txt");
Write_LS2(ruslels2, demData, noDataMap, ruslels);
LogWroteDEM(ruslels2);
}
ruslels = new float[1];
rusles = null;
form1.form2.progressBar.Value++;
form1.form2.progressTextBox.Text = "计算结束Calculation Succeed";
form1.form2.progressTextBox.Update();
Debug.WriteLine("form1.form2.progressBar.Value = "+form1.form2.progressBar.Value);
Log_CLSE_LSWarning(RUSLE_CSLE);
CloseLogFile();
if (ExportAll==false)
{
DeleteLogFile(logFilePath);
}
}
public void InitCumulativeLength(DemData dd, byte[] inFlow, byte[] outFlow, bool[] noDataMap, bool[] flowCut, float[] slopeLen,ref float[] cumlen)
{
int i; // Loop Counter.
int j; // Loop Counter.
int c; // Cell Index value
int rows; // Number of rows.
int cols; // Number of columns.
float cellorth; // Width of cell in cardinal direction
float celldiag; // Diagonal width of cell
int nw, n, ne, w, e, sw, s, se;
rows = dd.imagNrows;
cols = dd.imagNcols;
cellorth = dd.cellSize; //单元格长度
celldiag = (float)Math.Sqrt(2.0) * dd.cellSize; //对角线长度
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
cumlen[c] = (float)0.0;
if (noDataMap[c])
continue;
else
{
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
switch (outFlow[c])
{
case GlobalConstants.N:
case GlobalConstants.E:
case GlobalConstants.S:
case GlobalConstants.W:
if (flowCut[c])
// if (flowCut[n] && flowCut[ne] && flowCut[e] && flowCut[se] && flowCut[s]
//&& flowCut[sw] && flowCut[w] && flowCut[nw])
// cumlen[c] =0;
// else
cumlen[c] = cellorth/2;
else
cumlen[c] = cellorth;
break;
case GlobalConstants.NW:
case GlobalConstants.NE:
case GlobalConstants.SW:
case GlobalConstants.SE:
if(flowCut[c])
// if (flowCut[n] && flowCut[ne] && flowCut[e] && flowCut[se] && flowCut[s]
//&& flowCut[sw] && flowCut[w] && flowCut[nw])
// cumlen[c] = 0;
// else
cumlen[c] = celldiag/2;
else
cumlen[c] = celldiag;
break;
default:
// if (flowCut[n] && flowCut[ne] && flowCut[e] && flowCut[se] && flowCut[s]
//&& flowCut[sw] && flowCut[w] && flowCut[nw])
// cumlen[c] = 0;
// else
cumlen[c] = slopeLen[c]/2;
break;
}
}
}
}
}
public bool AnnulusFill(DemData demData, ref bool[] noDataMap, ref float[] demMap)
{
bool flag = false;
int i; /*Loop Counter.*/
int j; /*Loop Counter.*/
int rows; /*Number of rows.*/
int cols; /*Number of columns.*/
float min; /*Temp value */
float old; /*Used for log file */
int nw, n, ne, w, c, e, sw, s, se;
int nnww, nnw, nn, nne, nnee;
int nww, nee, ww, ee, sww, see;
int ssww, ssw, ss, sse, ssee;
/*张杰的修改*/
rows = demData.imagNrows;
cols = demData.imagNcols;
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (noDataMap[c])
{
continue;
}
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
if (noDataMap[nw] || noDataMap[n] || noDataMap[ne] || noDataMap[w] ||
noDataMap[e] || noDataMap[sw] || noDataMap[s] || noDataMap[se])
{
continue;
}
min = demMap[nw] < demMap[n] ? demMap[nw] : demMap[n];
min = demMap[ne] < min ? demMap[ne] : min;
min = demMap[w] < min ? demMap[w] : min;
min = demMap[e] < min ? demMap[e] : min;
min = demMap[sw] < min ? demMap[sw] : min;
min = demMap[s] < min ? demMap[s] : min;
min = demMap[se] < min ? demMap[se] : min;
if (GlobalConstants.FUZZ < Math.Abs(min - demMap[c]))
{
continue;
}
nn = n - cols;
nnww = nn - 2;
nnw = nn - 1;
nne = nn + 1;
nnee = nn + 2;
nww = nw - 1;
nee = ne + 1;
ww = w - 1;
ee = e + 1;
sww = sw - 1;
see = se + 1;
ss = s + cols;
ssww = ss - 2;
ssw = ss - 1;
sse = ss + 1;
ssee = ss + 2;
// Move on to the next cell if the annulus ring contains a nodata cell
if (noDataMap[nnww] || noDataMap[nnw] || noDataMap[nn] || noDataMap[nne] ||
noDataMap[nnee] || noDataMap[nww] || noDataMap[nee] || noDataMap[ww] ||
noDataMap[ee] || noDataMap[sww] || noDataMap[see] || noDataMap[ssww] ||
noDataMap[ssw] || noDataMap[ss] || noDataMap[sse] || noDataMap[ssee])
{
continue;
}
// Determine the minimum value within the annulus ring.
min = demMap[nnww] < demMap[nnw] ? demMap[nnww] : demMap[nnw];
min = min < demMap[nn] ? min : demMap[nn];
min = min < demMap[nne] ? min : demMap[nne];
min = min < demMap[nnee] ? min : demMap[nnee];
min = min < demMap[nww] ? min : demMap[nww];
min = min < demMap[nee] ? min : demMap[nee];
min = min < demMap[ww] ? min : demMap[ww];
min = min < demMap[ss] ? min : demMap[ee];
min = min < demMap[sww] ? min : demMap[sww];
min = min < demMap[see] ? min : demMap[see];
min = min < demMap[ssww] ? min : demMap[ssww];
min = min < demMap[ssw] ? min : demMap[ssw];
min = min < demMap[ss] ? min : demMap[ss];
min = min < demMap[sse] ? min : demMap[sse];
min = min < demMap[ssee] ? min : demMap[ssee];
if (min > demMap[c])
{
flag = true;
old = demMap[c];
demMap[c] = min;
if (demMap[nw] < min) demMap[nw] = min;
if (demMap[n] < min) demMap[n] = min;
if (demMap[ne] < min) demMap[ne] = min;
if (demMap[w] < min) demMap[w] = min;
if (demMap[e] < min) demMap[e] = min;
if (demMap[sw] < min) demMap[sw] = min;
if (demMap[s] < min) demMap[s] = min;
if (demMap[se] < min) demMap[se] = min;
LogAnnulusFill(i - 2, j - 2, demData.dataPrecision, old, min);
}
}
}
return flag;
}
public void LoadDEMHeaderData(string inFileName, ref DemData demData)
{
//检验文件是否存在
if (!File.Exists(inFileName))
{
throw (new FileNotFoundException(inFileName + " does not exist!"));
}
string line;
demFile = new StreamReader(inFileName);
//赋值ncols
line = demFile.ReadLine().Trim();
Debug.WriteLine(line);
int tmpLastIndex = line.LastIndexOf(' ');
demData.ncols = int.Parse(line.Substring(tmpLastIndex + 1));
//赋值nrows
line = demFile.ReadLine().Trim();
tmpLastIndex =line. LastIndexOf(' ');//由行值为进度条赋值
demData.nrows = int.Parse(line.Substring(tmpLastIndex + 1));
BarMaxNum = demData.nrows;
Debug.WriteLine(line);
//赋值xllcorner
line = demFile.ReadLine().Trim();
tmpLastIndex = line.LastIndexOf(' ');
demData.xllcorner = double.Parse(line.Substring(tmpLastIndex + 1));
Debug.WriteLine(line);
//赋值yllcorner
line = demFile.ReadLine().Trim();
tmpLastIndex = line.LastIndexOf(' ');
demData.yllcorner = double.Parse(line.Substring(tmpLastIndex + 1));
Debug.WriteLine(line);
//赋值cellsize
line = demFile.ReadLine().Trim();
tmpLastIndex = line.LastIndexOf(' ');
char[] numPart = line.Substring(tmpLastIndex + 1).ToCharArray();//将栅格的长度转换成字符串，目的是为了判断是否为浮点型
Debug.WriteLine(line);
demData.cellType = false;
bool tmpFlag = false;
//通过'.'来判断是否为浮点型
for (int i = 0; i < numPart.Length; i++)
{
if (numPart[i] == '.')
{
demData.cellType = true;
}
}
demData.cellSize = float.Parse(line.Substring(tmpLastIndex + 1));
//赋值NOTDATA
line = demFile.ReadLine().Trim();
tmpLastIndex = line.LastIndexOf(' ');
numPart = line.Substring(tmpLastIndex + 1).ToCharArray();//相同的方法来处理
for (int i = 0; i < numPart.Length; i++)
{
if (numPart[i] == '.')
{
tmpFlag = true;
}
}
demData.noDateType = tmpFlag;
demData.floatNoData = float.Parse(line.Substring(tmpLastIndex + 1));
Debug.WriteLine(demData.floatNoData);
demData.intNoData = (int)demData.floatNoData;//09.12.01修改
demData.imagNcols = demData.ncols + 4;
demData.imagNrows = demData.nrows + 4;
}
//重新建立截断
public void ReBuildSlopeCutGrid(DemData dd, byte[] outFlow, float[] slopeAng, bool[] noDataMap, bool[] flowCut, Int32[] Cumlen_ChannelNetworks, float threshold)
{
int i, j;
int c, ft;
int rows;
int cols;
float slpEndFactor;
rows = dd.imagNrows;
cols = dd.imagNcols;
threshold = threshold / (dd.cellSize * dd.cellSize);//转换为面积
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (noDataMap[c])
{
flowCut[c] = true;
continue;
}
switch (outFlow[c])
{
case GlobalConstants.E:
ft = c + 1;
break;
case GlobalConstants.SE:
ft = c + cols + 1;
break;
case GlobalConstants.S:
ft = c + cols;
break;
case GlobalConstants.SW:
ft = c + cols - 1;
break;
case GlobalConstants.W:
ft = c - 1;
break;
case GlobalConstants.NW:
ft = c - cols - 1;
break;
case GlobalConstants.N:
ft = c - cols;
break;
case GlobalConstants.NE:
ft = c - cols + 1;
break;
default:
flowCut[c] = true;
continue;
};
slpEndFactor = slopeAng[c] < 2.8624 ? dd.scf_lt5 : dd.scf_ge5;
flowCut[c] = slopeAng[ft] < slopeAng[c] * slpEndFactor;
if (Cumlen_ChannelNetworks[ft] >= threshold)
flowCut[c] = true;//如果大于设定的汇流面积则依然为截断
//flowCut[c] = false;
}
}
}
public void LocateInteriorNODATACells(DemData demData, ref bool[] noDataMap, ref float[] demMap)
{
int i; // Loop Counter.
int j; // Loop Counter.
int c, n, w, e, s; // Center, North, West, East, South
int nw, ne, se, sw; // NorthWest. NorthEast, SouthEast, SouthWest
bool done = false; // Iterative flag
int rows = demData.imagNrows;
int cols = demData.imagNcols;
bool[] ex_nd = new bool[rows * cols]; // EXternal_Nodata boolean map array
if (ex_nd == null)
{
LogFailedExit(rows * cols, 1, "bool", "Temp File to locate interior NODATA points");
}
//把最外两层直接赋值true，因为最外两层是没有意义的，其他的值赋为false
for (i = 0; i < rows; i++)
{
for (j = 0; j < cols; j++)
{
if (i < 2 || i > rows - 3)
{
c = i * cols + j;
ex_nd[c] = true;
}
else if (j < 2 || j > cols - 3)
{
c = i * cols + j;
ex_nd[c] = true;
}
else
{
c = i * cols + j;
ex_nd[c] = false;
}
}
}
int count = 0; // Counts number of interior NODATA cells
while (!done)
{
done = true;
for (i = 2; i < rows - 2; i++)
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
//有数据
if (!noDataMap[c] || ex_nd[c])
{
continue;
}
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
if (ex_nd[nw] || ex_nd[n] || ex_nd[ne] || ex_nd[w] ||
ex_nd[sw] || ex_nd[e] || ex_nd[se] || ex_nd[s])
{
ex_nd[c] = true;
done = false;
}
}
for (i = rows - 3; i > 1; i--)
for (j = cols - 2; j > 1; j--)
{
c = i * cols + j;
if (!noDataMap[c] || ex_nd[c])
{
continue;
}
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
if (ex_nd[nw] || ex_nd[n] ||
ex_nd[ne] || ex_nd[w] ||
ex_nd[sw] || ex_nd[e] ||
ex_nd[se] || ex_nd[s])
{
ex_nd[c] = true;
done = false;
}
}
}
for (i = 2; i < rows - 2; i++)
for (j = 2; j < cols - 2; j++)
if (ex_nd[i * cols + j] != noDataMap[i * cols + j])
{
c = i * cols + j;
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
if (ex_nd[nw] || ex_nd[n] ||
ex_nd[ne] || ex_nd[w] ||
ex_nd[sw] || ex_nd[e] ||
ex_nd[se] || ex_nd[s])
{
LogInteriorCluster(i - 2, j - 2);
}
if (demData.ifRepair)
{
if (demData.fillWay)
{
int count1 = 0;
float temp = 0.0f;
if (!noDataMap[n])
{
temp = demMap[n];
++count1;
}
if (!noDataMap[ne])
{
temp += demMap[ne];
++count1;
}
if (!noDataMap[e])
{
temp += demMap[e];
++count1;
}
if (!noDataMap[se])
{
temp += demMap[se];
++count1;
}
if (!noDataMap[s])
{
temp += demMap[s];
++count1;
}
if (!noDataMap[sw])
{
temp += demMap[sw];
++count1;
}
if (!noDataMap[w])
{
temp += demMap[w];
++count1;
}
if (!noDataMap[nw])
{
temp += demMap[nw];
++count1;
}
if (count1 != 0)
{
demMap[c] = temp / count1;
noDataMap[c] = false;
LogFillPoint(i - 2, j - 2, demMap[c]);
}
}else
{
float temp = 9999.0f;//存一个较大的值
if (!noDataMap[n])
temp = demMap[n];
if (!noDataMap[ne])
temp = (temp < demMap[ne] ? temp : demMap[ne]);
if (!noDataMap[e])
temp = (temp < demMap[e] ? temp : demMap[e]);
if (!noDataMap[se])
temp = (temp < demMap[se] ? temp : demMap[se]);
if (!noDataMap[s])
temp = (temp < demMap[s] ? temp : demMap[s]);
if (!noDataMap[sw])
temp = (temp < demMap[sw] ? temp : demMap[se]);
if (!noDataMap[w])
temp = (temp < demMap[w] ? temp : demMap[w]);
if (!noDataMap[nw])
temp = (temp < demMap[nw] ? temp : demMap[nw]);
demMap[c] = temp;
noDataMap[c] = false;
LogFillPoint(i - 2, j - 2, temp);}
}
else
{
LogExit();
}
count++;
}
if (count == 0)
{
LogVerifiedDEM();
}
else
{
LogVerifiedDEM1(count);
}
ex_nd = null;
}
public bool VerifyDEMDataType(ref DemData demData)
{
StreamReader demFileBack = new StreamReader(demData.inPath);
//读取六行，空过文件的起始标题
demFileBack.ReadLine();
demFileBack.ReadLine();
demFileBack.ReadLine();
demFileBack.ReadLine();
demFileBack.ReadLine();
string aString;
bool fpFlag = false;
int tPrecision = 0;
demData.dataPrecision = 0;
while ((aString = demFileBack.ReadLine()) != null)
{
string[] sArray = aString.Split(' ');
int j = 0;
while (j < sArray.Length)
{
char[] array = sArray[j].ToCharArray();
for (int i = 0; i < array.Length; i++)
{
tPrecision = 0;
if (array[i] == '.')
{
fpFlag = true;
tPrecision = array.Length - i - 1;
if (tPrecision > demData.dataPrecision)
demData.dataPrecision = tPrecision;
break;
}
}
j++;
}
sArray = null;
}
demFileBack.Close();
return fpFlag;
}
public void LogDataTypeDEM(DemData dd)
{
if (dd.floatOrInt)
{
sw.WriteLine("DEM file contains floating point DEM data");
sw.WriteLine("DEM file contains {0} places decimal precision", dd.dataPrecision);
}
else
sw.WriteLine("DEM file contains integer DEM data");
}
public void WriteDEMGrid(string fileNamePath, DemData dd, bool[] noDataMap, int[] demMap)
{
int i, j;
int cols = dd.imagNcols;
int rows = dd.imagNrows;
fp = new StreamWriter(fileNamePath);
if (fp == null) //
LogFileError(fileNamePath, "w");
fp.WriteLine("ncols {0}", dd.ncols);
fp.WriteLine("nrows {0}", dd.nrows);
fp.WriteLine("xllcorner {0:f6}", dd.xllcorner);
fp.WriteLine("yllcorner {0:f6}", dd.yllcorner);
if (dd.cellType)
fp.WriteLine("cellsize {0:f4}", dd.cellSize);
else
fp.WriteLine("cellsize {0}", (int)dd.cellSize);
fp.WriteLine("NODATA_value {0}", dd.intNoData);
int c = 0;
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (noDataMap[c])
{
fp.Write(" {0}", dd.intNoData);
}
else
{
if (dd.floatOrInt)
{
if (dd.dataPrecision == 1)
fp.Write(" {0:f1}", demMap[c]);
else if (dd.dataPrecision == 2)
fp.Write(" {0:f2}", demMap[c]);
else
fp.Write(" {0:f3}", demMap[c]);
}
else
{
fp.Write(" {0}", (int)demMap[c]);
}
}
}
fp.WriteLine();
}
fp.Flush();
fp.Close();
}
public void LogDemHeader(DemData dd)
{
sw.WriteLine("Processing data for dem data set containing:");
sw.WriteLine(" ncols {0:d}", dd.ncols);
sw.WriteLine(" nrows {0:d}", dd.nrows);
sw.WriteLine(" xllcorner {0:f6}", dd.xllcorner);
sw.WriteLine(" xllcorner {0:f6}", dd.yllcorner);
if (dd.cellType)
{
sw.WriteLine(" cellsize {0:f4}", dd.cellSize);
}
else
{
sw.WriteLine(" cellsize {0:d}", (int)dd.cellSize);
}
if (dd.noDateType)
{
sw.WriteLine(" DEM NODATA {0:f1}", dd.floatNoData);
}
else
{
sw.WriteLine(" DEM NODATA {0:d}", dd.intNoData);
}
sw.WriteLine(" Float NODATA -9.9");
sw.WriteLine(" Int NODATA -9");
}
public void WriteSlopeLenFeet(string fileName, DemData dd, bool[] noDataMap, float[] grid)
{
int rows, cols;
int i, j;
rows = dd.imagNrows;
cols = dd.imagNcols;
fp = new StreamWriter(fileName);
if (fp == null)
LogFileError(fileName, "w");
fp.WriteLine("ncols {0}", dd.ncols);
fp.WriteLine("nrows {0}", dd.nrows);
fp.WriteLine("xllcorner {0:f6}", dd.xllcorner);
fp.WriteLine("yllcorner {0:f6}", dd.yllcorner);
if (dd.cellType)
fp.WriteLine("cellsize {0:f4}", dd.cellSize);
else
fp.WriteLine("cellsize {0}", (int)dd.cellSize);
fp.WriteLine("NODATA_value -9.9");
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
if (noDataMap[i * cols + j])
fp.Write(" -9.9");
else
fp.Write(" {0:f3}", grid[i * cols + j]);
}
fp.WriteLine();
}
fp.Flush();
fp.Close();
}
//获取河网
public void CalcChannelNetworks(DemData dd, ref Int32[] Cumlen_ChannelNetworks, byte[] outflow, bool[] nd)
{
int rows; // Number of rows.
int cols; // Number of columns.
int count = 0; //记录循环次数
int hits = 0, hits1 = 0;
int nw, n, ne, w, c, e, sw, s, se;
int inicumarea = 1;//每个单元格的面积
bool done = false;
Int32 cumarea;
rows = dd.imagNrows;
cols = dd.imagNcols;
for (int i = 2; i < rows - 2; i++)
{
for (int j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (nd[c])
{
Cumlen_ChannelNetworks[c] = 0;
continue;
} //如果无值，跳出该次循环
Cumlen_ChannelNetworks[c] = inicumarea;
}
}
while (!done && count < 10000)
{
count++;
done = true;
hits = 0;
for (int i = 2; i < rows - 2; i++)
{
for (int j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (nd[c])
{
continue;
} //如果无值，跳出该次循环
cumarea =0; // 累计坡长为0.0
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
//西
if (outflow[w] == GlobalConstants.E)
{
cumarea += Cumlen_ChannelNetworks[w];
}
//西北
if (outflow[nw] == GlobalConstants.SE)
{
cumarea += Cumlen_ChannelNetworks[nw];
}
//北
if (outflow[n] == GlobalConstants.S )
{
cumarea += Cumlen_ChannelNetworks[n];
}
//东北
if (outflow[ne] == GlobalConstants.SW)
{
cumarea += Cumlen_ChannelNetworks[ne];
}
//东
if (outflow[e] == GlobalConstants.W)
{
cumarea += Cumlen_ChannelNetworks[e];
}
//东南
if (outflow[se] == GlobalConstants.NW)
{
cumarea += Cumlen_ChannelNetworks[se];
}
//南
if (outflow[s] == GlobalConstants.N )
{
cumarea += Cumlen_ChannelNetworks[s];
}
//西南
if (outflow[sw] == GlobalConstants.NE)
{
cumarea += Cumlen_ChannelNetworks[sw];
}
if (cumarea > 0.0)
{
cumarea += inicumarea;
if (cumarea > Cumlen_ChannelNetworks[c])
{
hits++;
done = false;
Cumlen_ChannelNetworks[c] = cumarea;
}
}
} // END for(i = 0; i < rows; i++) FIRST PART
} // END for(j = 0; j < cols, j++) FIRST PART
if (hits == hits1)
count = 10000;
hits1 = hits;
hits = 0;
//为什么要反方向重新计算呢？
for (int i = rows - 3; i >= 2; i--)
{
// SECOND PART
for (int j = cols - 3; j >= 2; j--)
{
// SECOND PART
c = i * cols + j;
if (nd[c])
{
continue;
}
cumarea =0;
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
//西北
if (outflow[nw] == GlobalConstants.SE)
{
cumarea += Cumlen_ChannelNetworks[nw];
}//北
if (outflow[n] == GlobalConstants.S )
{
cumarea += Cumlen_ChannelNetworks[n];
}//东北
if (outflow[ne] == GlobalConstants.SW )
{
cumarea += Cumlen_ChannelNetworks[ne];
}//西
if (outflow[w] == GlobalConstants.E )
{
cumarea += Cumlen_ChannelNetworks[w];
} //东
if (outflow[e] == GlobalConstants.W)
{
cumarea += Cumlen_ChannelNetworks[e];
}//西南
if (outflow[sw] == GlobalConstants.NE )
{
cumarea += Cumlen_ChannelNetworks[sw];
}//南
if (outflow[s] == GlobalConstants.N )
{
cumarea += Cumlen_ChannelNetworks[s];
}//东南
if (outflow[se] == GlobalConstants.NW )
{
cumarea += Cumlen_ChannelNetworks[se];
}
if (cumarea > 0.0)
{
cumarea += inicumarea;
if (cumarea > Cumlen_ChannelNetworks[c])
{
done = false;
hits++;
Cumlen_ChannelNetworks[c] = cumarea;
}
}
} // END for(i = 0; i < rows; i++) SECOND PART
} // END for(j = 0; j < cols, j++) SECOND PART
LogCumulativeProgress(count, hits1, hits);
}
}
public void Write_LS2(string fileName, DemData dd, bool[] noDataMap, float[] grid)
{
int rows, cols;
int i, j;
rows = dd.imagNrows;
cols = dd.imagNcols;
fp = new StreamWriter(fileName);
if (fp == null) // Handle error opening file
LogFileError(fileName, "w");
fp.WriteLine("ncols {0}", dd.ncols);
fp.WriteLine("nrows {0}", dd.nrows);
fp.WriteLine("xllcorner {0:f6}", dd.xllcorner);
fp.WriteLine("yllcorner {0:f6}", dd.yllcorner);
if (dd.cellType)
fp.WriteLine("cellsize {0:f4}", dd.cellSize);
else
fp.WriteLine("cellsize {0}", (int)dd.cellSize);
fp.WriteLine("NODATA_value -9");
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
if (noDataMap[i * cols + j])
fp.Write(" -9");
else if ((int)(grid[i * cols + j] + 0.5) != 0)
fp.Write(" {0:f2}", (grid[i * cols + j] + 0.5));
else
fp.Write(" 0.01");//原始值为1,20110610改为0.01
fp.WriteLine();
}
fp.Flush();
fp.Close();
}
public void LogStartUp(DemData dd)
{
sw.WriteLine();
sw.WriteLine("User Selected options:");
sw.WriteLine(" DEM DATA file name: {0}", dd.inPath);
sw.WriteLine(" Output path prefix: {0}", dd.preOutPath);
if (dd.meterOrFeet)
sw.WriteLine(" DEM elevation units: Meters");
else
sw.WriteLine(" DEM elevation units: Feet");
if (dd.ifExcessFile)//是否生成过度文件
sw.WriteLine(" Write intermediate files: YES");
else
sw.WriteLine(" Write intermediate files: NO");
if (dd.flowcut)
{
sw.WriteLine(" Slope cutoff factors");
sw.WriteLine(" Less than 5 percent: {0}", dd.scf_lt5);
sw.WriteLine(" Greater equal 5 percent: {0}", dd.scf_ge5);
}
else
{
sw.WriteLine("Without considering slope cutoff");
}
if (dd.threshold > 0)
sw.WriteLine("Define Channels as pixels an accumulated area threshold: {0} Square meters", dd.threshold);
else
sw.WriteLine("Without defined Channels");
if (dd.ifRepair)
sw.WriteLine(" Interior NODATA cells: Fill if possible");
else
sw.WriteLine(" Interior NODATA cells: Do not attempt to fill");
if (dd.ifRepair)
sw.WriteLine(" Interior NODATA clusters: Process anyway!");
else
sw.WriteLine(" Interior NODATA clusters: Terminate program");
if (dd.fillWay)
sw.WriteLine(" Interior NODATA point: fill with average value of around 8-cells");
else
sw.WriteLine(" Interior NODATA point: fill with min value of around 8-cells");
}
//累计总坡长
public void CalcCumulativeLength_Sum(DemData dd, byte[] outflow, bool[] nd, bool[] breakflow, float[] cumlen)
{
int rows; /*Number of rows.*/
int cols; /*Number of columns.*/
int count = 0; //记录循环次数
int hits, hits1 = 0;
int nw, n, ne, w, c, e, sw, s, se;
bool done = false;
float cumlength;
float diagcellsize;
rows = dd.imagNrows;
cols = dd.imagNcols;
diagcellsize = (float)Math.Sqrt(2.0) * dd.cellSize;
while (!done && count < 10000)
{
count++;
done = true;
hits = 0;
for (int i = 2; i < rows - 2; i++)
{
for (int j = 2; j < cols - 2; j++)
{
c = i * cols + j;
if (nd[c])
{
continue;
} //如果无值，跳出该次循环
cumlength = (float)0.0; // 累计坡长为0.0
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
//西
if (outflow[w] == GlobalConstants.E && !breakflow[w] )
{
cumlength += cumlen[w];
}
//西北
if (outflow[nw] == GlobalConstants.SE && !breakflow[nw] )
{
cumlength += cumlen[nw];
}
//北
if (outflow[n] == GlobalConstants.S && !breakflow[n])
{
cumlength += cumlen[n];
}
//东北
if (outflow[ne] == GlobalConstants.SW && !breakflow[ne])
{
cumlength += cumlen[ne];
}
//东
if (outflow[e] == GlobalConstants.W && !breakflow[e] )
{
cumlength += cumlen[e];
}
//东南
if (outflow[se] == GlobalConstants.NW && !breakflow[se] )
{
cumlength += cumlen[se];
}
//南
if (outflow[s] == GlobalConstants.N && !breakflow[s])
{
cumlength += cumlen[s];
}
//西南
if (outflow[sw] == GlobalConstants.NE && !breakflow[sw] )
{
cumlength += cumlen[sw];
}
if (cumlength > 0.0)
{
if (outflow[c] == GlobalConstants.N || outflow[c] == GlobalConstants.E || outflow[c] == GlobalConstants.S ||
outflow[c] == GlobalConstants.W)
cumlength += dd.cellSize;
else if (outflow[c] == GlobalConstants.NE || outflow[c] == GlobalConstants.NW || outflow[c] == GlobalConstants.SE ||
outflow[c] == GlobalConstants.SW)
cumlength += diagcellsize;
else
cumlength += dd.cellSize;
if (cumlength > cumlen[c])
{
hits++;
done = false;
cumlen[c] = cumlength;
}
}
}
}
if (hits == hits1)
count = 10000;
hits1 = hits;
hits = 0;
for (int i = rows - 3; i >= 2; i--)
{
// SECOND PART
for (int j = cols - 3; j >= 2; j--)
{
// SECOND PART
c = i * cols + j;
if (nd[c])
{
continue;
}
cumlength = (float)0.0;
nw = c - cols - 1;
n = c - cols;
ne = c - cols + 1;
w = c - 1;
e = c + 1;
sw = c + cols - 1;
s = c + cols;
se = c + cols + 1;
//西北
if (outflow[nw] == GlobalConstants.SE && !breakflow[nw] )
{
cumlength += cumlen[nw];
}//北
if (outflow[n] == GlobalConstants.S && !breakflow[n] )
{
cumlength += cumlen[n];
}//东北
if (outflow[ne] == GlobalConstants.SW && !breakflow[ne] )
{
cumlength += cumlen[ne];
}//西
if (outflow[w] == GlobalConstants.E && !breakflow[w] )
{
cumlength += cumlen[w];
} //东
if (outflow[e] == GlobalConstants.W && !breakflow[e] )
{
cumlength += cumlen[e];
}//西南
if (outflow[sw] == GlobalConstants.NE && !breakflow[sw] )
{
cumlength += cumlen[sw];
}//南
if (outflow[s] == GlobalConstants.N && !breakflow[s] )
{
cumlength += cumlen[s];
}//东南
if (outflow[se] == GlobalConstants.NW && !breakflow[se] )
{
cumlength += cumlen[se];
}
if (cumlength > 0.0)
{
if (outflow[c] == GlobalConstants.N || outflow[c] == GlobalConstants.E || outflow[c] == GlobalConstants.S ||
outflow[c] == GlobalConstants.W)
cumlength += dd.cellSize;
else if (outflow[c] == GlobalConstants.NE || outflow[c] == GlobalConstants.NW || outflow[c] == GlobalConstants.SE ||
outflow[c] == GlobalConstants.SW)
cumlength += diagcellsize;
if (cumlength > cumlen[c])
{
done = false;
hits++;
cumlen[c] = cumlength;
}
}
}
}
LogCumulativeProgress(count, hits1, hits);
}
}
public void Calculate_CLSE_L_Feet(DemData dd, float[] slopeAng, float[] slp_lgth_ft, float[] ruslel)
{
int i; /*Loop Counter.*/
int j; /*Loop Counter.*/
int c;
int rows; /*Number of rows.*/
int cols; /*Number of columns.*/
rows = dd.imagNrows;
cols = dd.imagNcols;
for (i = 2; i < rows - 2; i++)
{
for (j = 2; j < cols - 2; j++)
{
c = i * cols + j;
ruslel[c] = (float)Math.Pow(slp_lgth_ft[c] / (float)72.6, TableLookUp_csle(slopeAng[c])); //x的y次幂
} // END for(i = 0; i < rows; i++)
} // END for(j = 0; j < cols, j++)
}
