private unsafe void button5_Click(object sender, EventArgs e)
{
//先生成全文件NDVI文件
string fname = @"E:\数据文件\蓝藻\th_2012_05_05_02_44_GZ.ld2";
IRasterDataProvider dataProvider = GeoDataDriver.Open(fname) as IRasterDataProvider;
IPixelFeatureMapper <float> ndvi = new MemPixelFeatureMapper <float>("NDVI_Temp", 1000, new Size(dataProvider.Width, dataProvider.Height), dataProvider.CoordEnvelope, dataProvider.SpatialRef);
IArgumentProvider argprdNDVI = new ArgumentProvider(dataProvider, null);
//argprdNDVI.AOI = idxs;
string expressNDVI = "(band2 - band1) / (float)(band2 + band1)";
int[] bandNos = new int[] { 1, 2 };
//构造栅格计算判识器
IRasterExtracter <UInt16, float> extracterNDVI = new SimpleRasterExtracter <UInt16, float>();
extracterNDVI.Reset(argprdNDVI, bandNos, expressNDVI);
//判识
extracterNDVI.Extract(ndvi);
//NDVI结果永久保存
RasterIdentify idNDVI = new RasterIdentify();
idNDVI.ThemeIdentify = "CMA";
idNDVI.ProductIdentify = "BAG";
idNDVI.SubProductIdentify = "NDVITemp";
idNDVI.OrbitDateTime = DateTime.Now.Subtract(new TimeSpan(1, 0, 0, 0, 0));
idNDVI.GenerateDateTime = DateTime.Now;
//NDVISetValue setValue = new NDVISetValue(0.17f, 0.8f);
//int size = sizeof(NDVISetValue);
IInterestedRaster <float> iirNDVI = new InterestedRaster <float>(idNDVI, new Size(dataProvider.Width, dataProvider.Height), dataProvider.CoordEnvelope.Clone(), dataProvider.SpatialRef);
//iirNDVI.SetExtHeader(setValue);
iirNDVI.Put(ndvi);
iirNDVI.Dispose();
}
private void button14_Click(object sender, EventArgs e)
{
//构造参数提供者
string fname = @"f:\\FY3A_Mersi_2010_06_24_10_00_1000M_L1B_PRJ_Whole.LDF";
IRasterDataProvider prd = GeoDataDriver.Open(fname) as IRasterDataProvider;
ArgumentProvider argprd = new ArgumentProvider(prd, null);
//构造判识表达式
//string express = "(band4 + band3) == 0? 0f : (band4 - band3) / (float)(band4 + band3)";
string express = "NDVI(band4,band3)";
int[] bandNos = new int[] { 4, 3 };
//构造栅格计算判识器
IRasterExtracter <UInt16, float> extracter = new SimpleRasterExtracter <UInt16, float>();
extracter.Reset(argprd, bandNos, express);
//判识
resultNDVI = new MemPixelFeatureMapper <float>("NDVI", 1000, new Size(prd.Width, prd.Height), prd.CoordEnvelope, prd.SpatialRef);
Stopwatch sw = new Stopwatch();
sw.Start();
extracter.Extract(resultNDVI);
//sw.Stop();
//Text = sw.ElapsedMilliseconds.ToString();
//判识结果生成二值位图
//IBinaryBitmapBuilder builder = new BinaryBitmapBuilder();
//Size bmSize = new Size(prd.Width / 2, prd.Height / 2);
//Bitmap bitmap = builder.CreateBinaryBitmap(bmSize, Color.Red, Color.Transparent);
//builder.Fill(idxs, new Size(prd.Width, prd.Height), ref bitmap);
//bitmap.Save("f:\\1.png", ImageFormat.Png);
//判识结果永久保存
RasterIdentify id = new RasterIdentify();
id.ThemeIdentify = "CMA";
id.ProductIdentify = "FIR";
id.SubProductIdentify = "NDVI";
id.Satellite = "FY3A";
id.Sensor = "MERSI";
id.Resolution = "250M";
id.OrbitDateTime = DateTime.Now.Subtract(new TimeSpan(1, 0, 0, 0, 0));
id.GenerateDateTime = DateTime.Now;
IInterestedRaster <float> iir = new InterestedRaster <float>(id, new Size(prd.Width, prd.Height), prd.CoordEnvelope.Clone());
iir.Put(resultNDVI);
iir.Dispose();
sw.Stop();
Text = sw.ElapsedMilliseconds.ToString();
int count = iir.Count(aoi, (v) => { return(v == 1); });
iir.Count(aoi, (v) => { return((int)v); });
}
private void button16_Click(object sender, EventArgs e)
{
using (VectorAOITemplate v = VectorAOITemplateFactory.GetAOITemplate("贝尔湖")) //贝尔湖
{
Size size;
IRasterDataProvider prd;
Envelope evp = GetEnvelope(out size, out prd);
Stopwatch sw = new Stopwatch();
sw.Start();
aoi = v.GetAOI(evp, size);
//
int[] reverseAOI = AOIHelper.Reverse(aoi, size);
IBinaryBitmapBuilder b = new BinaryBitmapBuilder();
Bitmap bm = b.CreateBinaryBitmap(size, Color.Red, Color.Black);
b.Fill(reverseAOI, size, ref bm);
//
string express = "NDVI(band1,band2)";
int[] bandNos = new int[] { 1, 2 };
//构造栅格计算判识器
ArgumentProvider argprd = new ArgumentProvider(prd, null);
argprd.AOI = aoi;
IRasterExtracter <UInt16, float> extracter = new SimpleRasterExtracter <UInt16, float>();
extracter.Reset(argprd, bandNos, express);
//判识
resultNDVI = new MemPixelFeatureMapper <float>("NDVI", 1000, new Size(prd.Width, prd.Height), prd.CoordEnvelope, prd.SpatialRef);
extracter.Extract(resultNDVI);
//
RasterIdentify id = new RasterIdentify();
id.ThemeIdentify = "CMA";
id.ProductIdentify = "FIR";
id.SubProductIdentify = "NDVI";
id.Satellite = "FY3A";
id.Sensor = "MERSI";
id.Resolution = "250M";
id.OrbitDateTime = DateTime.Now.Subtract(new TimeSpan(1, 0, 0, 0, 0));
id.GenerateDateTime = DateTime.Now;
IInterestedRaster <float> iir = new InterestedRaster <float>(id, new Size(prd.Width, prd.Height), prd.CoordEnvelope.Clone());
iir.Put(resultNDVI);
iir.Dispose();
}
}
//
public IExtractResult ComputeByCurrentRaster(Action <int, string> progressTracker)
{
if (_argumentProvider == null || _argumentProvider.DataProvider == null)
{
return(null);
}
if (_arg == null)
{
return(null);
}
int[] bandNos = _arg.BandNos;
string express = _arg.Express;
IRasterExtracter <UInt16, Int16> extracter = new SimpleRasterExtracter <UInt16, Int16>();
extracter.Reset(_argumentProvider, bandNos, express);
IRasterDataProvider prd = _argumentProvider.DataProvider;
IPixelFeatureMapper <Int16> result = new MemPixelFeatureMapper <Int16>(_identify, prd.Width * prd.Height, new System.Drawing.Size(prd.Width, prd.Height), prd.CoordEnvelope, prd.SpatialRef);
extracter.Extract(result);
return(result);
}
private IExtractResult ComputeVisibility()
{
if (_argumentProvider.DataProvider == null)
{
PrintInfo("请提供沙尘影像数据！");
return(null);
}
IRasterDataProvider prd = _argumentProvider.DataProvider;
int[] aois = GetAOIByBinaryFile();
if (aois != null && aois.Length != 0)
{
_argumentProvider.AOI = aois;
}
int visiNo = -1, nearNo = -1, shortNo = -1, farNo = -1;
IBandNameRaster bandNameRaster = _argumentProvider.DataProvider as IBandNameRaster; //
visiNo = TryGetBandNo(bandNameRaster, "Visible"); //(int)_argumentProvider.GetArg("Visible");
nearNo = TryGetBandNo(bandNameRaster, "NearInfrared"); //(int)_argumentProvider.GetArg("NearInfrared");
shortNo = TryGetBandNo(bandNameRaster, "ShortInfrared"); //(int)_argumentProvider.GetArg("ShortInfrared");
farNo = TryGetBandNo(bandNameRaster, "FarInfrared"); //(int)_argumentProvider.GetArg("FarInfrared");
double visiZoom = (double)_argumentProvider.GetArg("Visible_Zoom");
double nearZoom = (double)_argumentProvider.GetArg("NearInfrared_Zoom");
double shortZoom = (double)_argumentProvider.GetArg("ShortInfrared_Zoom");
double farZoom = (double)_argumentProvider.GetArg("FarInfrared_Zoom");
if (visiNo == -1 || nearNo == -1 || shortNo == -1 || farNo == -1 || visiZoom == -1 || farZoom == -1 || shortZoom == -1)
{
PrintInfo("获取波段序号失败，可能是波段映射表配置错误或判识算法波段参数配置错误。");
return(null);
}
int bandCount = prd.BandCount;
if (visiNo > bandCount)
{
PrintInfo("可见光波段序号超过数据的波段范围，可能是影像数据选择不正确。");
return(null);
}
if (nearNo > bandCount)
{
PrintInfo("近红外波段序号超过数据的波段范围，可能是影像数据选择不正确。");
return(null);
}
if (shortNo > bandCount)
{
PrintInfo("短波红外波段序号超过数据的波段范围，可能是影像数据选择不正确。");
return(null);
}
if (farNo > bandCount)
{
PrintInfo("远红外波段序号超过数据的波段范围，可能是影像数据选择不正确。");
return(null);
}
int[] bandNos = new int[] { visiNo, nearNo, shortNo, farNo };
string express = "(UInt16)Math.Round(1000 * Math.Pow(Math.E,(var_VisibilityA + var_VisibilityB * band"
+ visiNo + " / " + visiZoom + "f + var_VisibilityC * band" + nearNo + "/" + nearZoom + "f + var_VisibilityD * band"
+ shortNo + "/" + shortZoom + "f + var_VisibilityE * band" + farNo + "/" + farZoom + "f + var_VisibilityF *(band"
+ shortNo + "/" + shortZoom + "f - band" + farNo + "/" + farZoom + "f + var_ShortFarVar))),0)";
IRasterExtracter <UInt16, UInt16> extracter = new SimpleRasterExtracter <UInt16, UInt16>();
extracter.Reset(_argumentProvider, bandNos, express);
IPixelFeatureMapper <UInt16> result = new MemPixelFeatureMapper <UInt16>("Visibility", 1000, new Size(prd.Width, prd.Height), prd.CoordEnvelope, prd.SpatialRef);
extracter.Extract(result);
return(result);
}
private void 沙尘能见度_Click(object sender, EventArgs e)
{
//首先进行沙尘判识，得出判识出的沙尘区域
string fname = @"E:\第二张盘\01_沙尘\2011年04月30日\FY3A_VIRRX_GBAL_L1_20110430_0305_1000M_MS_PRJ_DXX.LDF";
//Dictionary<string, object> args = new Dictionary<string, object>();
//args.Add("a", 28);
//args.Add("b", 78);
//args.Add("c", 245);
//args.Add("d", 293);
//args.Add("f", 0);
//args.Add("g", 20);
//args.Add("h", 15);
//args.Add("i", 250);
IRasterDataProvider prd = GeoDataDriver.Open(fname) as IRasterDataProvider;
//ArgumentsProvider argprd = new ArgumentsProvider(prd, args);
//string extractExpress = "((band2/10f) > var_a) && (band2/10f < var_b) && (band5/10f > var_c) && (band5/10f < var_d) && "
// + "(band6/10f > var_a) && ((band6 - band2)>var_f) && ((band6/10f - band5/10f + var_i)>var_h)";
//band2:可见光，0.525~0.575（波长范围）
//band5:远红外，10.3~11.55
//band6:短波红外，1.60~1.69
//int[] exBandNos = new int[] { 2, 5, 6 };
//IThresholdExtracter<UInt16> thrExtracter = new SimpleThresholdExtracter<UInt16>();
//thrExtracter.Reset(argprd, exBandNos, extractExpress);
//extractResult = new MemPixelIndexMapper("SAND", 1000);
//thrExtracter.Extract(extractResult);
//idxs = extractResult.Indexes.ToArray(); //获取到判识结果
//将判识结果作为AOI传入进行能见度计算
string express = "(UInt16)Math.Round(1000 * Math.Pow(Math.E,(var_visibleA + var_visibleB * band1/10f + var_visibleC * band2/10f + var_visibleD * band6/10f + var_visibleE * band4/10f + var_visibleF *(band6/10f - band4/10f + var_shortFar))),0)";
//express = " 80 ";
//string express = "1000*Math.Pow(Math.E,(44.7603 +0.181571 * band2/10f -0.332972 * band4/10f + 0.122736 * band6/10f -0.144287 * band5/10f -0.114465 *(band6/10f - band5/10f + 253)))";
Dictionary <string, object> args = new Dictionary <string, object>();
args.Add("visibleA", 44.7603);
args.Add("visibleB", 0.181571);
args.Add("visibleC", -0.332972);
args.Add("visibleD", 0.122736);
args.Add("visibleE", -0.144287);
args.Add("visibleF", -0.114465);
args.Add("shortFar", 253);
int[] bandNos = new int[] { 1, 2, 6, 4 };
ArgumentProvider argProvider = new ArgumentProvider(prd, args);
//argProvider.AOI = idxs;
IRasterExtracter <UInt16, UInt16> extracter = new SimpleRasterExtracter <UInt16, UInt16>();
extracter.Reset(argProvider, bandNos, express);
result = new MemPixelFeatureMapper <UInt16>("Visibility", 1000, new Size(prd.Width, prd.Height), prd.CoordEnvelope, prd.SpatialRef);
Stopwatch sw = new Stopwatch();
sw.Start();
extracter.Extract(result);
RasterIdentify id = new RasterIdentify();
id.ThemeIdentify = "CMA";
id.ProductIdentify = "SAND";
id.SubProductIdentify = "VISIBILITY";
id.Satellite = "FY3A";
id.Sensor = "VIRRX";
id.Resolution = "1000M";
id.OrbitDateTime = DateTime.Now.Subtract(new TimeSpan(1, 0, 0, 0, 0));
id.GenerateDateTime = DateTime.Now;
IInterestedRaster <UInt16> iir = new InterestedRaster <UInt16>(id, new Size(prd.Width, prd.Height), prd.CoordEnvelope.Clone());
iir.Put(result);
iir.Dispose();
sw.Stop();
Text = sw.ElapsedMilliseconds.ToString();
}