private int[] GetAOI(IRasterDataProvider prd)
{
using (VectorAOITemplate v = VectorAOITemplateFactory.GetAOITemplate("太湖"))
{
Size size;
Envelope evp = GetEnvelope(out size, out prd);
return(v.GetAOI(evp, size));
}
}
private int[] GetAOI(IRasterDataProvider prd, bool isLand)
{
using (VectorAOITemplate v = VectorAOITemplateFactory.GetAOITemplate("海陆模版"))
{
Size size;
Envelope evp = GetEnvelope(out size, prd);
int[] landAoi = v.GetAOI(evp, size); //陆地
int[] reverseAOI = AOIHelper.Reverse(landAoi, size); //海洋
return(isLand ? landAoi : reverseAOI);
}
}
private int[] GetAOI()
{
VectorAOITemplate template = VectorAOITemplateFactory.GetAOITemplate("洞庭湖");
Size size;
IRasterDataProvider prd;
Envelope evp = GetEnvelope(out size, out prd);
aoi = template.GetAOI(evp, size);
//
int[] reverseAOI = AOIHelper.Reverse(aoi, size);
return(reverseAOI);
}
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();
}
}
private void 海陆模板_Click(object sender, EventArgs e)
{
using (VectorAOITemplate v = VectorAOITemplateFactory.GetAOITemplate("海陆模版")) //贝尔湖
{
Size size;
IRasterDataProvider prd;
Envelope evp = GetEnvelope(out size, out prd);
Stopwatch sw = new Stopwatch();
sw.Start();
landAoi = v.GetAOI(evp, size);
//
int[] reverseAOI = AOIHelper.Reverse(landAoi, size);
//IBinaryBitmapBuilder b = new BinaryBitmapBuilder();
//Bitmap bm = b.CreateBinaryBitmap(size, Color.Red, Color.Black);
//b.Fill(reverseAOI, size, ref bm);
//对陆地区域使用陆地判识算法
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", 28);
//args.Add("g", 0);
//args.Add("h", 15);
//args.Add("i", 250);
//构造判识表达式
//string express = "((band2/10f) > var_a) && (band2/10f < var_b) && (band5/10f > var_c) && (band5/10f < var_d) && "
// + "(band6/10f > var_f) && ((band6 - band2)>var_g) && ((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[] bandNos = new int[] { 2, 5, 6 };
////构造栅格计算判识器
//ArgumentsProvider argprd = new ArgumentsProvider(prd, args);
//argprd.AOI = reverseAOI;
//IThresholdExtracter<UInt16> extracter = new SimpleThresholdExtracter<UInt16>();
//extracter.Reset(argprd, bandNos, express);
////判识
//landResult = new MemPixelIndexMapper("SAND", 1000);
//extracter.Extract(landResult);
//landInd = landResult.Indexes.ToArray();
//对海洋区域使用海洋判识算法
args.Clear();
args.Add("a", 8);
args.Add("b", 26);
args.Add("c", 265);
args.Add("d", 283);
args.Add("e", -10);
args.Add("f", 0);
string express = "(band2/10f > var_a) && (band2/10f < var_b) && (band5/10f > var_c) && (band5/10f < var_d) && "
+ "(band6/10f > var_a)&& ((band6/10f - band4/10f)>var_e) &&((band2/10f - band4/10f )>var_f)";
int[] bandNos = new int[] { 2, 5, 6, 4 };
ArgumentProvider argprd = new ArgumentProvider(prd, args);
argprd.AOI = reverseAOI;
IThresholdExtracter <UInt16> extracter = new SimpleThresholdExtracter <UInt16>();
extracter.Reset(argprd, bandNos, express);
//判识
seaResult = PixelIndexMapperFactory.CreatePixelIndexMapper("DST", prd.Width, prd.Height, prd.CoordEnvelope, prd.SpatialRef);
extracter.Extract(seaResult);
seaIdx = seaResult.Indexes.ToArray();
//
IBinaryBitmapBuilder builder = new BinaryBitmapBuilder();
Size bmSize = new Size(prd.Width / 2, prd.Height / 2);
Bitmap bitmap = builder.CreateBinaryBitmap(bmSize, Color.Red, Color.White);
builder.Fill(landInd, new Size(prd.Width, prd.Height), ref bitmap);
bitmap.Save("h:\\陆地沙尘.png", ImageFormat.Png);
builder.Fill(seaIdx, new Size(prd.Width, prd.Height), ref bitmap);
bitmap.Save("h:\\海洋沙尘.png", ImageFormat.Png);
//
RasterIdentify id = new RasterIdentify();
id.ThemeIdentify = "CMA";
id.ProductIdentify = "SAND";
id.SubProductIdentify = "2VAL";
id.Satellite = "FY3A";
id.Sensor = "MERSI";
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(landInd, 1);
iir.Put(seaIdx, 1);
sw.Stop();
Text = sw.ElapsedMilliseconds.ToString();
iir.Dispose();
}
////取海洋矢量作为AOI，使用海洋的判识算法
//Dictionary<string, object> seaargs = new Dictionary<string, object>();
//seaargs.Add("sa", 8);
//seaargs.Add("sb", 26);
//seaargs.Add("sc", 265);
//seaargs.Add("sd", 283);
//seaargs.Add("se", -10);
//seaargs.Add("sf", 0);
//string seaExpress = "(band2/10f > var_sa) && (band2/10f < var_sb) && (band5/10f > var_sc) && (band5/10f < var_sd) && "
// + "(band6/10f > var_sa)&& ((band6/10f - band4/10f)>var_se) &&((band2/10f - band4/10f )>var_sf)";
//int[] seabandNos = new int[] { 2, 5, 6, 4 };
//ArgumentsProvider seaargprd = new ArgumentsProvider(prd, seaargs);
////构造判识表达式
////构造基于阈值的判识器
//IThresholdExtracter<UInt16> seaextracter = new SimpleThresholdExtracter<UInt16>();
//seaextracter.Reset(seaargprd, seabandNos, seaExpress);
////判识
//IPixelIndexMapper searesult = new MemPixelIndexMapper("SAND", 1000);
//seaextracter.Extract(searesult);
//int[] seaidxs = searesult.Indexes.ToArray();
//将两者判识的idex合并
}
