//621
private string PrjVIRR(IRasterDataProvider srcRaster, ISpatialReference projRef)
{
List <BandMap> bandmapList = new List <BandMap>();
bandmapList.Add(new BandMap()
{
DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 0
});
bandmapList.Add(new BandMap()
{
DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 1
});
//bandmapList.Add(new BandMap() { DatasetName = "EV_Emissive", File = srcRaster, BandIndex = 0 });
//bandmapList.Add(new BandMap() { DatasetName = "EV_Emissive", File = srcRaster, BandIndex = 1 });
//bandmapList.Add(new BandMap() { DatasetName = "EV_Emissive", File = srcRaster, BandIndex = 2 });
bandmapList.Add(new BandMap()
{
DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 2
});
//bandmapList.Add(new BandMap() { DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 3 });
//bandmapList.Add(new BandMap() { DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 4 });
//bandmapList.Add(new BandMap() { DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 5 });
//bandmapList.Add(new BandMap() { DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 6 });
IFileProjector projTor = FileProjector.GetFileProjectByName("FY3_VIRR");
FY3_VIRR_PrjSettings prjSetting = new FY3_VIRR_PrjSettings();
prjSetting.OutPathAndFileName = GetOutPutFile(srcRaster.fileName, projRef);
prjSetting.BandMapTable = bandmapList;
ISpatialReference dstSpatialRef = projRef;
projTor.Project(srcRaster, prjSetting, dstSpatialRef, _progress);
return(prjSetting.OutPathAndFileName);
}
public override void Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
if (srcRaster == null)
{
throw new ArgumentNullException("srcRaster");
}
if (prjSettings == null)
{
throw new ArgumentNullException("prjSettings");
}
FY3_VIRR_PrjSettings fy3prjSettings = prjSettings as FY3_VIRR_PrjSettings;
TryCreateDefaultArgs(srcRaster, fy3prjSettings, ref dstSpatialRef);
DoSession(srcRaster, dstSpatialRef, fy3prjSettings, progressCallback);
if (prjSettings.OutEnvelope == null || prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
prjSettings.OutEnvelope = _maxPrjEnvelope;
}
//地理坐标投影,下面简单的对地理坐标投影的范围作了限制，不大严谨，仅适合目前的状况。
if (dstSpatialRef.ProjectionCoordSystem == null && (prjSettings.OutEnvelope.MaxY > 80 || prjSettings.OutEnvelope.MaxY < -80))
{
throw new Exception(string.Format("高纬度数据，不适合投影为等经纬度数据[{0}]", _maxPrjEnvelope));
}
Project(srcRaster, fy3prjSettings, dstSpatialRef, progressCallback);
}
/// <summary>
/// 0、先生成目标文件，以防止目标空间不足。
/// 1、计算查找表
/// 2、对所有波段执行投影
/// </summary>
private void ProjectToLDF(IRasterDataProvider srcRaster, FY3_VIRR_PrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
string outFormat = prjSettings.OutFormat;
string outfilename = prjSettings.OutPathAndFileName;
string dstProj4 = dstSpatialRef.ToProj4String();
List <BandMap> bandMaps = prjSettings.BandMapTable;
int dstBandCount = bandMaps.Count;
Size srcSize = new Size(srcRaster.Width, srcRaster.Height);
Size dstSize = prjSettings.OutSize;
using (IRasterDataDriver drv = GeoDataDriver.GetDriverByName("LDF") as IRasterDataDriver)
{
PrjEnvelope dstEnvelope = prjSettings.OutEnvelope;
string mapInfo = "MAPINFO={" + 1 + "," + 1 + "}:{" + dstEnvelope.MinX + "," + dstEnvelope.MaxY + "}:{" + prjSettings.OutResolutionX + "," + prjSettings.OutResolutionY + "}";
using (IRasterDataProvider prdWriter = drv.Create(outfilename, dstSize.Width, dstSize.Height, dstBandCount,
enumDataType.UInt16, "INTERLEAVE=BSQ", "VERSION=LDF", "SPATIALREF=" + dstProj4, mapInfo, "WITHHDR=TRUE") as IRasterDataProvider)
{
//计算查找表
//ISpatialReference srcSpatialRef = srcRaster.SpatialRef;
UInt16[] dstRowLookUpTable = new UInt16[dstSize.Width * dstSize.Height];
UInt16[] dstColLookUpTable = new UInt16[dstSize.Width * dstSize.Height];
_rasterProjector.ComputeIndexMapTable(_xs, _ys, srcSize, dstSize, dstEnvelope, _maxPrjEnvelope,
out dstRowLookUpTable, out dstColLookUpTable, progressCallback);
//执行投影
UInt16[] srcBandData = new UInt16[srcSize.Width * srcSize.Height];
UInt16[] dstBandData = new UInt16[dstSize.Width * dstSize.Height];
int progress = 0;
for (int i = 0; i < dstBandCount; i++) //读取原始通道值，投影到目标区域
{
if (progressCallback != null)
{
progress = (int)((i + 1) * 100 / dstBandCount);
progressCallback(progress, string.Format("投影第{0}共{1}通道", i + 1, dstBandCount));
}
BandMap bandMap = bandMaps[i];
ReadBandData(srcBandData, bandMap.File, bandMap.DatasetName, bandMap.BandIndex, srcSize);
if (prjSettings.IsRadiation)
{
DoRadiation(srcBandData, srcSize, bandMap.DatasetName, bandMap.BandIndex, prjSettings.IsSolarZenith);
}
_rasterProjector.Project <UInt16>(srcBandData, srcSize, dstRowLookUpTable, dstColLookUpTable, dstSize, dstBandData, 0, progressCallback);
using (IRasterBand band = prdWriter.GetRasterBand(i + 1))
{
unsafe
{
fixed(UInt16 *ptr = dstBandData)
{
IntPtr bufferPtr = new IntPtr(ptr);
band.Write(0, 0, band.Width, band.Height, bufferPtr, enumDataType.UInt16, band.Width, band.Height);
}
}
}
}
}
}
}
private void TryCreateDefaultArgs(IRasterDataProvider srcRaster, FY3_VIRR_PrjSettings prjSettings, ref ISpatialReference dstSpatialRef)
{
if (dstSpatialRef == null)
{
dstSpatialRef = _srcSpatialRef;
}
if (string.IsNullOrWhiteSpace(prjSettings.OutFormat))
{
prjSettings.OutFormat = "LDF";
}
if (dstSpatialRef.ProjectionCoordSystem == null)
{
_srcImgResolution = 0.01F;
}
else
{
_srcImgResolution = 1000f;
}
if (prjSettings.OutResolutionX <= 0 || prjSettings.OutResolutionY <= 0)
{
if (dstSpatialRef.ProjectionCoordSystem == null)
{
prjSettings.OutResolutionX = 0.01F;
prjSettings.OutResolutionY = 0.01F;
}
else
{
prjSettings.OutResolutionX = 1000F;
prjSettings.OutResolutionY = 1000F;
}
}
if (prjSettings.OutBandNos == null || prjSettings.OutBandNos.Length == 0)
{
_prjBands = PrjBand.VIRR_1000_Orbit;
}
else
{
List <PrjBand> bands = new List <PrjBand>();
PrjBand[] defbands = PrjBand.VIRR_1000_Orbit;
foreach (int bandNo in prjSettings.OutBandNos)
{
bands.Add(defbands[bandNo - 1]);
}
_prjBands = bands.ToArray();
}
}
private void Project(IRasterDataProvider srcRaster, FY3_VIRR_PrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
PrjEnvelope envelops = prjSettings.OutEnvelope;
if (envelops.IntersectsWith(_maxPrjEnvelope))
{
switch (prjSettings.OutFormat)
{
case "LDF":
ProjectToLDF(srcRaster, prjSettings, dstSpatialRef, progressCallback);
break;
case "MEMORY":
default:
throw new NotSupportedException(string.Format("暂不支持的输出格式", prjSettings.OutFormat));
}
}
else
{
throw new Exception("数据不在目标区间内");
}
}
public override IRasterDataProvider Project(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, IRasterDataProvider dstRaster, int beginBandIndex, Action <int, string> progressCallback)
{
if (srcRaster == null)
{
throw new ArgumentNullException("srcRaster");
}
if (prjSettings == null)
{
throw new ArgumentNullException("prjSettings");
}
if (dstRaster == null && prjSettings.OutPathAndFileName == null)
{
throw new ArgumentNullException("dstRaster");
}
try
{
FY3_VIRR_PrjSettings fy3prjSettings = prjSettings as FY3_VIRR_PrjSettings;
ISpatialReference dstSpatialRef = dstRaster.SpatialRef;
TryCreateDefaultArgs(srcRaster, fy3prjSettings, ref dstSpatialRef);
DoSession(srcRaster, _geoDataProvider, dstSpatialRef, fy3prjSettings, progressCallback);
if (prjSettings.OutEnvelope == null || prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
prjSettings.OutEnvelope = _maxPrjEnvelope;
}
if (dstSpatialRef.ProjectionCoordSystem == null && (prjSettings.OutEnvelope.MaxY > 80 || prjSettings.OutEnvelope.MaxY < -80))
{
throw new Exception(string.Format("高纬度数据[>80]，不适合投影为等经纬度数据[{0}]", _maxPrjEnvelope));
}
if (dstRaster == null)
{
PrjEnvelope dstEnvelope = prjSettings.OutEnvelope;
string outFormat = prjSettings.OutFormat;
string outfilename = prjSettings.OutPathAndFileName;
string dstProj4 = dstSpatialRef.ToProj4String();
int dstBandCount = _prjBands.Length;
Size srcSize = new Size(srcRaster.Width, srcRaster.Height);
Size dstSize = prjSettings.OutSize;
IRasterDataDriver drv = GeoDataDriver.GetDriverByName("LDF") as IRasterDataDriver;
string[] options = new string[] {
"INTERLEAVE=BSQ",
"VERSION=LDF",
"WITHHDR=TRUE",
"SPATIALREF=" + dstProj4,
"MAPINFO={" + 1 + "," + 1 + "}:{" + dstEnvelope.MinX + "," + dstEnvelope.MaxY + "}:{" + prjSettings.OutResolutionX + "," + prjSettings.OutResolutionY + "}"
};
dstRaster = drv.Create(outfilename, dstSize.Width, dstSize.Height, dstBandCount, enumDataType.UInt16, options) as IRasterDataProvider;
}
ProjectToLDF(srcRaster, dstRaster, 0, progressCallback);
return(dstRaster);
}
catch
{
EndSession();
TryDeleteCurCatch();
throw;
}
finally
{
EndSession();
if (prjSettings.IsClearPrjCache)
{
TryDeleteCurCatch();
}
}
}
private IRasterBand[] TryCreateRasterDataBands(IRasterDataProvider srcRaster, FY3_VIRR_PrjSettings prjSettings, Action <int, string> progressCallback)
{
IBandProvider srcbandpro = srcRaster.BandProvider as IBandProvider;
List <IRasterBand> rasterBands = new List <IRasterBand>();
for (int i = 0; i < _prjBands.Length; i++)
{
if (progressCallback != null)
{
progressCallback(_readyProgress++, "准备第" + i + "个输入数据通道");
}
PrjBand bandMap = _prjBands[i];
IRasterBand[] latBands = srcbandpro.GetBands(bandMap.DataSetName);
IRasterBand band = latBands[bandMap.DataSetIndex];
rasterBands.Add(band);
}
return(rasterBands.ToArray());
}
private void DoSession(IRasterDataProvider srcRaster, IRasterDataProvider geoRaster, ISpatialReference dstSpatialRef, FY3_VIRR_PrjSettings prjSettings, Action <int, string> progressCallback)
{
if (_curSession == null || _curSession != srcRaster || _isBeginSession)
{
if (progressCallback != null)
{
progressCallback(_readyProgress++, "读取及预处理经纬度数据集");
}
ReadyLocations(_geoDataProvider, SpatialReference.GetDefault(), dstSpatialRef, out _srcLocationSize, out _xs, out _ys, out _maxPrjEnvelope, progressCallback);
if (progressCallback != null)
{
progressCallback(_readyProgress++, "准备其他参数");
}
if (prjSettings.IsRadiation)
{
ReadyRadiationArgs(srcRaster);
}
if (prjSettings.IsSolarZenith && prjSettings.IsRadiation)
{
_solarZenithCacheFilename = GetSolarZenithCacheFilename(geoRaster.fileName); //太阳天顶角数据
if (!File.Exists(_solarZenithCacheFilename))
{
ReadySolarZenithArgsToFile(geoRaster);
}
else
{
_solarZenithCacheRaster = GeoDataDriver.Open(_solarZenithCacheFilename) as IRasterDataProvider;
}
if (prjSettings.IsSensorZenith)
{
ReadySensorZenith(geoRaster);
}
}
_rasterDataBands = TryCreateRasterDataBands(srcRaster, prjSettings, progressCallback);
_isBeginSession = false;
}
}
private void ReadyArgs(IRasterDataProvider srcRaster, FilePrjSettings prjSettings, ISpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
if (srcRaster == null)
{
throw new ArgumentNullException("srcRaster");
}
if (prjSettings == null)
{
throw new ArgumentNullException("prjSettings");
}
_readyProgress = 0;
_prjSettings = prjSettings as FY3_VIRR_PrjSettings;
_geoDataProvider = (prjSettings as FY3_VIRR_PrjSettings).GeoFile;
_dstSpatialRef = dstSpatialRef;
MemoryHelper.MemoryNeed(200, 1536);//剩余200MB,已使用1.2GB
if (progressCallback != null)
{
progressCallback(_readyProgress++, "准备相关参数");
}
TryCreateDefaultArgs(srcRaster, _prjSettings, ref dstSpatialRef);
//这里去除的是读取轨道数据时候的左右像元个数。
_left = 8;
_right = 8;
TrySetLeftRightInvalidPixel(_prjSettings.ExtArgs);
DoSession(srcRaster, _geoDataProvider, dstSpatialRef, _prjSettings, progressCallback);
if (prjSettings.OutEnvelope == null || prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
prjSettings.OutEnvelope = _maxPrjEnvelope;
_orbitBlock = new Block {
xOffset = 0, yBegin = 0, xEnd = srcRaster.Width - 1, yEnd = srcRaster.Height - 1
};
}
else
{
GetEnvelope(_xs, _ys, srcRaster.Width, srcRaster.Height, _prjSettings.OutEnvelope, out _orbitBlock);
if (_orbitBlock == null || _orbitBlock.Width <= 0 || _orbitBlock.Height <= 0)
{
throw new Exception("数据不在目标区间内");
}
float invalidPresent = (_orbitBlock.Width * _orbitBlock.Height * 1.0F) / (srcRaster.Width * srcRaster.Height);
if (invalidPresent < 0.0001f)
{
throw new Exception("数据占轨道数据比例太小,有效率" + invalidPresent * 100 + "%");
}
if (invalidPresent > 0.60)
{
_orbitBlock = new Block {
xOffset = 0, yBegin = 0, xEnd = srcRaster.Width - 1, yEnd = srcRaster.Height - 1
}
}
;
}
//if (dstSpatialRef.ProjectionCoordSystem == null && (prjSettings.OutEnvelope.MaxY > 80 || prjSettings.OutEnvelope.MaxY < -80))
// throw new Exception(string.Format("高纬度数据，不适合投影为等经纬度数据[{0}]", _maxPrjEnvelope));
_dstSpatialRef = dstSpatialRef;
_dstEnvelope = _prjSettings.OutEnvelope;
if (!_dstEnvelope.IntersectsWith(_maxPrjEnvelope))
{
throw new Exception("数据不在目标区间内");
}
_outResolutionX = _prjSettings.OutResolutionX;
_outResolutionY = _prjSettings.OutResolutionY;
_outFormat = _prjSettings.OutFormat;
_outfilename = _prjSettings.OutPathAndFileName;
_dstProj4 = _dstSpatialRef.ToProj4String();
_dstBandCount = _prjBands.Length;
_dstSize = _prjSettings.OutSize;
_isRadiation = _prjSettings.IsRadiation;
_isSolarZenith = _prjSettings.IsSolarZenith;
_isSensorZenith = _prjSettings.IsSensorZenith;
}
private void TryCreateDefaultArgs(IRasterDataProvider srcRaster, FY3_VIRR_PrjSettings prjSettings, ref ISpatialReference dstSpatialRef)
{
if (dstSpatialRef == null)
{
dstSpatialRef = _srcSpatialRef;
}
if (string.IsNullOrWhiteSpace(prjSettings.OutFormat))
{
prjSettings.OutFormat = "LDF";
}
if (prjSettings.OutResolutionX == 0 || prjSettings.OutResolutionY == 0)
{
if (dstSpatialRef.ProjectionCoordSystem == null)
{
prjSettings.OutResolutionX = 0.01F;
prjSettings.OutResolutionY = 0.01F;
}
else
{
prjSettings.OutResolutionX = 1000F;
prjSettings.OutResolutionY = 1000F;
}
}
if (prjSettings.BandMapTable == null || prjSettings.BandMapTable.Count == 0)
{
List <BandMap> bandmapList = new List <BandMap>();
bandmapList.Add(new BandMap()
{
DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 0
});
bandmapList.Add(new BandMap()
{
DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 1
});
bandmapList.Add(new BandMap()
{
DatasetName = "EV_Emissive", File = srcRaster, BandIndex = 0
});
bandmapList.Add(new BandMap()
{
DatasetName = "EV_Emissive", File = srcRaster, BandIndex = 1
});
bandmapList.Add(new BandMap()
{
DatasetName = "EV_Emissive", File = srcRaster, BandIndex = 2
});
bandmapList.Add(new BandMap()
{
DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 2
});
bandmapList.Add(new BandMap()
{
DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 3
});
bandmapList.Add(new BandMap()
{
DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 4
});
bandmapList.Add(new BandMap()
{
DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 5
});
bandmapList.Add(new BandMap()
{
DatasetName = "EV_RefSB", File = srcRaster, BandIndex = 6
});
prjSettings.BandMapTable = bandmapList;
}
}
private void DoSession(IRasterDataProvider srcRaster, ISpatialReference dstSpatialRef, FY3_VIRR_PrjSettings fy3prjSettings, Action <int, string> progressCallback)
{
if (_curSession != null && _curSession != srcRaster)
{
EndSession();
}
if (_curSession == null)
{
Size srcSize = new Size(srcRaster.Width, srcRaster.Height);
ReadyLocations(srcRaster, dstSpatialRef, srcSize, out _xs, out _ys, out _maxPrjEnvelope, progressCallback);
if (fy3prjSettings.IsRadiation)
{
ReadyRadiationArgs(srcRaster);
}
if (fy3prjSettings.IsSolarZenith)
{
ReadySolarZenithArgs(srcRaster);
}
}
}
