private void btNH_Click(object sender, EventArgs e)
{
GetUCArgs();
using (frmHistograms frm = new frmHistograms(ref _ucArgs, ref _error))
{
DialogResult dr = frm.ShowDialog();
_dryWetEdgesArgs = frm.DryWetEdgeArgs;
SetDryWetEdgesArgs();
}
if (_handler != null)
{
_handler(GetArgumentValue());
}
}
public static bool DoDryWetEdgeFitting(out DryWetEdgeArgs args, TVDIUCArgs ucArgs, ref string error)
{
args = null;
if (!CheckHistograms(ucArgs, ref error))
{
return(false);
}
Dictionary <float, List <float> > histograms = NDVIHistograms(ucArgs);
args = DryWetEdgesArgsCalc(ucArgs, histograms);
if (args == null)
{
error = "干湿边拟合失败,请调整NDVI值域范围后重试!";
return(false);
}
return(true);
}
private IExtractResult DemAlgorithm(Action <int, string> progressTracker)
{
TVDIUCArgs args = _argumentProvider.GetArg("ArgumentSetting") as TVDIUCArgs;
if (args == null)
{
PrintInfo("请设置进行温度植被干旱指数计算的参数。");
return(null);
}
string ndviFile = args.NDVIFile;
string lstFile = args.ECLstFile;
DryWetEdgeArgs dryWetArg = args.DryWetEdgesFitting;
if (string.IsNullOrEmpty(ndviFile) || string.IsNullOrEmpty(lstFile))
{
PrintInfo("请选择进行温度植被干旱指数计算所需的文件。");
return(null);
}
if (dryWetArg == null)
{
PrintInfo("请先进行干湿边拟合，计算拟合参数。");
return(null);
}
double maxA = dryWetArg.MaxA, maxB = dryWetArg.MaxB, minA = dryWetArg.MinA, minB = dryWetArg.MinB;
if (args.TVDIParas == null || args.TVDIParas.LstFile == null)
{
return(null);
}
int ndviBand = args.TVDIParas.NdviFile.Band;
if (ndviBand == -1)
{
return(null);
}
int lstZoom = args.TVDIParas.Zoom; //args.TVDIParas.LstFile.Zoom;
if (lstZoom == 0)
{
return(null);
}
int lstMin = args.TVDIParas.LstFile.Min;
int lstMax = args.TVDIParas.LstFile.Max;
int ndviCloudy = args.TVDIParas.NdviFile.Cloudy;
//输入文件准备
List <RasterMaper> rms = new List <RasterMaper>();
IRasterDataProvider ndviPrd = null;
IRasterDataProvider lstPrd = null;
try
{
ndviPrd = GeoDataDriver.Open(ndviFile) as IRasterDataProvider;
if (ndviPrd.BandCount < ndviBand)
{
PrintInfo("请选择正确的植被指数文件进行温度植被干旱指数计算。");
return(null);
}
RasterMaper ndviRm = new RasterMaper(ndviPrd, new int[] { ndviBand });
rms.Add(ndviRm);
lstPrd = GeoDataDriver.Open(lstFile) as IRasterDataProvider;
if (lstPrd.BandCount < 1)
{
PrintInfo("请选择正确的陆表高温文件进行温度植被干旱指数计算。");
return(null);
}
RasterMaper lstRm = new RasterMaper(lstPrd, new int[] { 1 });
rms.Add(lstRm);
//输出文件准备
RasterIdentify ri = GetRasterIdentifyID(new string[] { ndviFile, lstFile });
string outFileName = ri.ToWksFullFileName(".dat");
//string outFileName = GetFileName(new string[] { ndviFile, lstFile }, _subProductDef.ProductDef.Identify, _identify, ".dat", null);
using (IRasterDataProvider outRaster = CreateOutRaster(outFileName, rms.ToArray()))
{
//栅格数据映射
RasterMaper[] fileIns = rms.ToArray();
RasterMaper[] fileOuts = new RasterMaper[] { new RasterMaper(outRaster, new int[] { 1 }) };
RasterProcessModel <short, short> rfr = new RasterProcessModel <short, short>(progressTracker);
rfr.SetRaster(fileIns, fileOuts);
double tmin = 0d, tmax = 0d;
short value0 = 0, value1 = 0;
rfr.RegisterCalcModel(new RasterCalcHandler <short, short>((rvInVistor, rvOutVistor, aoi) =>
{
int dataLength = rvOutVistor[0].SizeY * rvOutVistor[0].SizeX;
if (rvInVistor[0].RasterBandsData == null || rvInVistor[1].RasterBandsData == null ||
rvInVistor[0].RasterBandsData[0] == null || rvInVistor[1].RasterBandsData[0] == null)
{
return;
}
for (int index = 0; index < dataLength; index++)
{
value0 = rvInVistor[0].RasterBandsData[0][index];
value1 = rvInVistor[1].RasterBandsData[0][index];
#region LST
if (value1 == 9000)
{
rvOutVistor[0].RasterBandsData[0][index] = (Int16)(2 * lstZoom); //非中国区域陆地
continue;
}
if (value1 == 9999)
{
rvOutVistor[0].RasterBandsData[0][index] = (Int16)Math.Round((2.5 * lstZoom), 0); //海区
continue;
}
if (value1 == 9998)
{
rvOutVistor[0].RasterBandsData[0][index] = (Int16)Math.Round((2.55 * lstZoom), 0); //云区
continue;
}
if (value1 == 9997)
{
rvOutVistor[0].RasterBandsData[0][index] = (Int16)Math.Round((1.5 * lstZoom), 0); //无数据区域
continue;
}
if (value1 < lstMin || value1 > lstMax)
{
rvOutVistor[0].RasterBandsData[0][index] = (Int16)Math.Round((1.5 * lstZoom), 0);
continue;
}
#endregion
#region ndvi检查
if (value0 == ndviCloudy) //过滤无效值
{
rvOutVistor[0].RasterBandsData[0][index] = (Int16)Math.Round((2.55 * lstZoom), 0);
continue;
}
if (value0 == 0)
{
continue;
}
#endregion
tmin = minA + minB * value0;
tmax = maxA + maxB * value0;
if (tmin == tmax)
{
rvOutVistor[0].RasterBandsData[0][index] = 0;
}
else
{
rvOutVistor[0].RasterBandsData[0][index] = (Int16)(((value1 - tmin) / (tmax - tmin)) * lstZoom);
}
}
}));
rfr.Excute();
FileExtractResult res = new FileExtractResult(_subProductDef.Identify, outFileName, true);
res.SetDispaly(false);
return(res);
}
}
finally
{
if (ndviPrd != null)
{
ndviPrd.Dispose();
}
if (lstPrd != null)
{
lstPrd.Dispose();
}
}
}
