private void TryCreate0250DefaultArgs(AbstractWarpDataset srcRaster, FY3_MERSI_PrjSettings prjSettings, ref SpatialReference dstSpatialRef)
{
if (prjSettings.SecondaryOrbitRaster == null && prjSettings.IsSolarZenith)
{
prjSettings.IsSolarZenith = false; //throw new Exception("无法获取相应1KM轨道数据文件，无法做太阳天顶角订正");
}
if (dstSpatialRef == null)
{
dstSpatialRef = _srcSpatialRef;
}
if (string.IsNullOrWhiteSpace(prjSettings.OutFormat))
{
prjSettings.OutFormat = "ENVI";
}
if (dstSpatialRef.IsGeographic() == 1)
{
_srcImgResolution = 0.0025f;
}
else
{
_srcImgResolution = 250f;
}
if (prjSettings.OutResolutionX == 0 || prjSettings.OutResolutionY == 0)
{
if (dstSpatialRef.IsGeographic() == 1)
{
prjSettings.OutResolutionX = 0.0025F;//地理坐标系
prjSettings.OutResolutionY = 0.0025F;
}
else
{
prjSettings.OutResolutionX = 250F;//投影坐标系
prjSettings.OutResolutionY = 250F;
}
}
if (prjSettings.OutBandNos == null || prjSettings.OutBandNos.Length == 0)
{
_prjBands = BandDefCollection.MERSI_0250_OrbitDefCollecges();
}
else
{
List <PrjBand> bands = new List <PrjBand>();
PrjBand[] defbands = BandDefCollection.MERSI_0250_OrbitDefCollecges();
foreach (int bandNo in prjSettings.OutBandNos)
{
bands.Add(defbands[bandNo - 1]);
}
_prjBands = bands.ToArray();
}
}
private static FY3_MERSI_PrjSettings ArgsCheck(AbstractWarpDataset srcRaster, FilePrjSettings prjSettings)
{
if (srcRaster == null)
{
throw new ArgumentNullException("srcRaster");
}
if (prjSettings == null)
{
throw new ArgumentNullException("prjSettings");
}
FY3_MERSI_PrjSettings fy3prjSettings = prjSettings as FY3_MERSI_PrjSettings;
return(fy3prjSettings);
}
private Band[] TryCreateRasterDataBands(AbstractWarpDataset srcRaster, FY3_MERSI_PrjSettings fy3prjSettings, Action <int, string> progressCallback)
{
List <Band> rasterBands = new List <Band>();
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];
Band[] latBands = srcRaster.GetBands(bandMap.DataSetName);
Band band = latBands[bandMap.DataSetIndex];
rasterBands.Add(band);
}
return(rasterBands.ToArray());
}
private void TryCreateDefaultArgs(AbstractWarpDataset srcRaster, FY3_MERSI_PrjSettings prjSettings, ref SpatialReference dstSpatialRef)
{
if (dstSpatialRef == null)
{
dstSpatialRef = _srcSpatialRef;
}
if (string.IsNullOrWhiteSpace(prjSettings.OutFormat))
{
prjSettings.OutFormat = "LDF";
}
if (dstSpatialRef.IsGeographic() == 1)
{
_srcImgResolution = 0.01F;
}
else
{
_srcImgResolution = 1000F;
}
if (prjSettings.OutResolutionX == 0 || prjSettings.OutResolutionY == 0)
{
if (dstSpatialRef.IsGeographic() == 1)
{
prjSettings.OutResolutionX = 0.01F;
prjSettings.OutResolutionY = 0.01F;
}
else
{
prjSettings.OutResolutionX = 1000F;
prjSettings.OutResolutionY = 1000F;
}
}
if (prjSettings.OutBandNos == null || prjSettings.OutBandNos.Length == 0)
{
_prjBands = BandDefCollection.MERSI_1000_OrbitDefCollecges();
}
else
{
List <PrjBand> bands = new List <PrjBand>();
PrjBand[] defbands = BandDefCollection.MERSI_1000_OrbitDefCollecges();
foreach (int bandNo in prjSettings.OutBandNos)
{
bands.Add(defbands[bandNo - 1]);
}
_prjBands = bands.ToArray();
}
}
private void ReadyLocations(AbstractWarpDataset srcRaster, SpatialReference dstSpatialRef, FY3_MERSI_PrjSettings fy3prjSettings,
out Size locationSize, out PrjEnvelope maxPrjEnvelope, Action <int, string> progressCallback)
{
if (progressCallback != null)
{
progressCallback(_readyProgress++, "读取经纬度数据集");
}
Stopwatch sw = new Stopwatch();
sw.Start();
double[] xs = null;
double[] ys = null;
//Size locationSize;
ReadLocations(srcRaster, out xs, out ys, out locationSize);
TryResetLonlatForLeftRightInvalid(xs, ys, locationSize);
sw.Stop();
Console.WriteLine(sw.ElapsedMilliseconds + "ms....1");
if (progressCallback != null)
{
progressCallback(_readyProgress++, "预处理经纬度数据集");
}
sw.Restart();
_rasterProjector.ComputeDstEnvelope(_srcSpatialRef, xs, ys, locationSize, dstSpatialRef, out maxPrjEnvelope, progressCallback);
sw.Stop();
Console.WriteLine(sw.ElapsedMilliseconds + "ms....2");
_xs = xs;
_ys = ys;
}
private void DoSession(AbstractWarpDataset srcRaster, AbstractWarpDataset locationRaster, SpatialReference dstSpatialRef, FY3_MERSI_PrjSettings prjSettings, Action <int, string> progressCallback)
{
if (_curSession == null || _curSession != srcRaster || _isBeginSession)
{
Size srcImgSize = new Size(srcRaster.Width, srcRaster.Height);
ReadyLocations(srcRaster, dstSpatialRef, prjSettings, out _srcLocationSize, out _maxPrjEnvelope, progressCallback);
if (progressCallback != null)
{
progressCallback(4, "准备其他参数");
}
if (prjSettings.IsRadRef || prjSettings.IsRad)
{
ReadyRadiationArgs(srcRaster);
}
if (prjSettings.IsSolarZenith) //&& prjSettings.IsRadiation
{
_szDataFilename = GetSolarZenithCacheFilename(locationRaster.fileName);
if (!File.Exists(_szDataFilename))
{
ReadySolarZenithArgsToFile(locationRaster);
}
else
{
_solarZenithCacheRaster = WarpDataset.Open(_szDataFilename);
}
if (prjSettings.IsSensorZenith)
{
ReadySensorZenith(locationRaster);
}
}
_rasterDataBands = TryCreateRasterDataBands(srcRaster, prjSettings, progressCallback);//待投影的波段
_isBeginSession = false;
}
}
private void ReadyArgs(AbstractWarpDataset srcRaster, FilePrjSettings prjSettings, SpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
if (srcRaster.DataIdentify != null)
{
string satellite = srcRaster.DataIdentify.Satellite;
//if (satellite == "FY3A")//FY3A MERSI250米数据已经经过处理，不需要再执行去条带操作
//{
// _sacnLineWidth = 0;
//}
}
float resolutionScale = 1f;
_readyProgress = 0;
if (progressCallback != null)
{
progressCallback(_readyProgress++, "准备相关参数");
}
_prjSettings = ArgsCheck(srcRaster, prjSettings);
CheckIs0250(srcRaster);
_dstSpatialRef = dstSpatialRef;
switch (_dataType)
{
case "1KM":
//整轨投影时候去除左右锯齿，分块投影不需要
_left = 10;
_right = 10;
if (_prjSettings.OutEnvelope == null || _prjSettings.OutEnvelope == PrjEnvelope.Empty) //整轨投影
{
MemoryHelper.MemoryNeed(500, 1536);
}
else
{
MemoryHelper.MemoryNeed(400, 1536); //剩余900MB,已使用1.2GB
}
TryCreateDefaultArgs(srcRaster, _prjSettings, ref _dstSpatialRef);
DoSession(srcRaster, srcRaster, _dstSpatialRef, _prjSettings, progressCallback);
_angleDataProvider = srcRaster;
break;
case "QKM":
resolutionScale = 4f;
_left = 20;
_right = 20;
if (_prjSettings.OutEnvelope == null || _prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
MemoryHelper.MemoryNeed(800, 1280); //整幅投影对内存做限制，系统剩余内存不低于1.5GB，应用程序已使用内存不超过600MB
}
else
{
MemoryHelper.MemoryNeed(600, 1280); //剩余900MB,已使用1.2GB
}
TryCreate0250DefaultArgs(srcRaster, _prjSettings, ref _dstSpatialRef);
DoSession(srcRaster, _prjSettings.SecondaryOrbitRaster, _dstSpatialRef, _prjSettings, progressCallback);
_angleDataProvider = _prjSettings.SecondaryOrbitRaster;
break;
default:
break;
}
TrySetLeftRightInvalidPixel(_prjSettings.ExtArgs);
if (_prjSettings.OutEnvelope == null || _prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
_prjSettings.OutEnvelope = _maxPrjEnvelope;
_orbitBlock = new Block {
xBegin = 0, yBegin = 0, xEnd = _srcLocationSize.Width - 1, yEnd = _srcLocationSize.Height - 1
};
}
else
{
GetEnvelope(_xs, _ys, _srcLocationSize.Width, _srcLocationSize.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 * resolutionScale) / (_srcLocationSize.Width * _srcLocationSize.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 {
xBegin = 0, yBegin = 0, xEnd = _srcLocationSize.Width - 1, yEnd = _srcLocationSize.Height - 1
}
}
;
}
//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.IsGeographic()==1 && (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));
//以下参数用于投影
_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.ExportToProj4();
_dstBandCount = _prjBands.Length;
_dstSize = _prjSettings.OutSize;
_isRadRef = _prjSettings.IsRadRef;
_isSolarZenith = _prjSettings.IsSolarZenith;
_isSensorZenith = _prjSettings.IsSensorZenith;
_isRad = _prjSettings.IsRad;
}
/// <summary>
/// 这里修改为获取经纬度Band，而不是存储到_xs,_ys中
/// 因为对于MERSI250米分辨率的经纬度数据集数据量太大了，无法一次放入内存中。
/// </summary>
/// <param name="geoRaster"></param>
/// <param name="dstSpatialRef"></param>
/// <param name="fy3prjSettings"></param>
/// <param name="srcLocationSize"></param>
/// <param name="maxPrjEnvelope"></param>
/// <param name="progressCallback"></param>
private void ReadyLocations(AbstractWarpDataset geoRaster, SpatialReference dstSpatialRef, FY3_MERSI_PrjSettings fy3prjSettings,
out Size srcLocationSize, out PrjEnvelope maxPrjEnvelope, Action <int, string> progressCallback)
{
if (progressCallback != null)
{
progressCallback(_readyProgress++, "读取经纬度数据集");
}
double[] xs = null;
double[] ys = null;
Size geoSize;
Size maxGeoSize = new Size(1024, 1024); //采样读取后的最大Size
ReadLocations(geoRaster, out _longitudeBand, out _latitudeBand); //GetGeoBand
srcLocationSize = new Size(_longitudeBand.XSize, _longitudeBand.YSize);
ReadLocations(_longitudeBand, _latitudeBand, maxGeoSize, out xs, out ys, out geoSize);
TryResetLonlatForLeftRightInvalid(xs, ys, geoSize, srcLocationSize);
_rasterProjector.ComputeDstEnvelope(_srcSpatialRef, xs, ys, geoSize, dstSpatialRef, out maxPrjEnvelope, progressCallback);
}
private void ReadyArgs(AbstractWarpDataset srcRaster, FilePrjSettings prjSettings, SpatialReference dstSpatialRef, Action <int, string> progressCallback)
{
float resolutionScale = 1f;
_readyProgress = 0;
if (progressCallback != null)
{
progressCallback(_readyProgress++, "准备相关参数");
}
_prjSettings = ArgsCheck(srcRaster, prjSettings);
_geoDataProvider = _prjSettings.GeoFile;
CheckIs0250(srcRaster);
_dstSpatialRef = dstSpatialRef;
switch (_dataType)
{
case "1KM":
//整轨投影时候去除左右锯齿，分块投影不需要
_left = 10;
_right = 10;
if (_prjSettings.OutEnvelope == null || _prjSettings.OutEnvelope == PrjEnvelope.Empty) //整轨投影时做限制
{
MemoryHelper.MemoryNeed(500, 1536);
}
else
{
MemoryHelper.MemoryNeed(400, 1536); //剩余900MB,已使用1.2GB
}
//_angleDataProvider = srcRaster;
TryCreateDefaultArgs(srcRaster, _prjSettings, ref _dstSpatialRef);
TrySetLeftRightInvalidPixel(_prjSettings.ExtArgs);
DoSession(srcRaster, _geoDataProvider, _dstSpatialRef, _prjSettings, progressCallback);
break;
case "QKM":
resolutionScale = 4f;
_left = 20;
_right = 20;
if (_prjSettings.OutEnvelope == null || _prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
MemoryHelper.MemoryNeed(800, 1280); //整幅投影对内存做限制，系统剩余内存不低于A参数MB，应用程序已使用内存不超过B参数MB
}
else
{
MemoryHelper.MemoryNeed(600, 1280); //剩余900MB,最大已使用1.2GB
}
//_angleDataProvider = _prjSettings.SecondaryOrbitRaster;
TryCreate0250DefaultArgs(srcRaster, _prjSettings, ref _dstSpatialRef);
TrySetLeftRightInvalidPixel(_prjSettings.ExtArgs);
DoSession(srcRaster, _geoDataProvider, _dstSpatialRef, _prjSettings, progressCallback);
break;
default:
break;
}
if (_prjSettings.OutEnvelope == null || _prjSettings.OutEnvelope == PrjEnvelope.Empty)
{
_prjSettings.OutEnvelope = _maxPrjEnvelope;
_orbitBlock = new Block {
xBegin = 0, yBegin = 0, xEnd = _srcLocationSize.Width - 1, yEnd = _srcLocationSize.Height - 1
};
}
else
{
if (_xs != null && _ys != null)
{
GetEnvelope(_xs, _ys, _srcLocationSize.Width, _srcLocationSize.Height, _prjSettings.OutEnvelope, out _orbitBlock);
}
else
{
int bC = 8;
int tmpWidth = 0;
int tmpHeight = 0;
double[] tmpxs = null;
double[] tmpys = null;
//8024，8000
tmpWidth = _srcLocationSize.Width / bC;
tmpHeight = _srcLocationSize.Height / bC;
tmpxs = ReadSampleDatas(_longitudeBand, 0, 0, tmpWidth, tmpHeight);
tmpys = ReadSampleDatas(_latitudeBand, 0, 0, tmpWidth, tmpHeight);
_rasterProjector.Transform(wgs84, tmpxs, tmpys, _dstSpatialRef);
//计算偏移
GetEnvelope(tmpxs, tmpys, tmpWidth, tmpHeight, _prjSettings.OutEnvelope, out _orbitBlock);
_orbitBlock = _orbitBlock.Zoom(bC, bC);
}
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 * resolutionScale) / (_srcLocationSize.Width * _srcLocationSize.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 {
xBegin = 0, yBegin = 0, xEnd = _srcLocationSize.Width - 1, yEnd = _srcLocationSize.Height - 1
}
}
;
}
//以下参数用于投影
_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.ExportToProj4();
_dstBandCount = _prjBands.Length;
_dstSize = _prjSettings.OutSize;
_isRadRef = _prjSettings.IsRadRef;
_isSolarZenith = _prjSettings.IsSolarZenith;
_isSensorZenith = _prjSettings.IsSensorZenith;
_isRad = _prjSettings.IsRad;
}
