private void labDSMin_TextChanged(object sender, EventArgs e)
{
if (labDSMin.Text != "")
{
OSGeo.GDAL.Gdal.AllRegister();
OSGeo.GDAL.Dataset ds = OSGeo.GDAL.Gdal.Open(labDSMin.Text, OSGeo.GDAL.Access.GA_ReadOnly);
double[] a = new double[6];
ds.GetGeoTransform(a);
double xx = a[0];
double yy = a[3];
double size = a[1];
double xSixe = ds.RasterXSize;
double ySixe = ds.RasterYSize;
labInFileInfo.Text += labDSMin.Text + "：\r" + "\r\n"
+ "左上角X坐标：" + xx.ToString() + "\r"
+ "左上角Y坐标：" + yy.ToString() + "\r"
+ "像元尺寸：" + size.ToString() + "\r"
+ "图像大小：" + xSixe.ToString() + "*" + ySixe.ToString();
ds.Dispose();
}
else
{
labInFileInfo.Text = "";
}
}
/// <summary>
/// 距离倒数权重插值。
/// </summary>
/// <param name="ds">要重采样到的数据集。</param>
/// <param name="band">要重采样到数据集的波段。</param>
/// <param name="x">被插值的像元在数据集中的x坐标。</param>
/// <param name="y">被插值的像元在数据集中的y坐标。</param>
/// <returns>插值结果</returns>
public double IDW(OSGeo.GDAL.Dataset ds, int band, double x, double y)
{
int Width = ds.RasterXSize;
int Height = ds.RasterYSize;
if (x < 0 || x > Width - 1 || y < 0 || y > Height - 1)
{
throw new IndexOutOfRangeException("待计算像元的行列号超出影像边界。期望的参数为：0<=x<=" + (Width - 1).ToString() + "，0<=y<=" + (Height - 1).ToString() + "，输入的参数为：x=" + x.ToString() + "，y=" + y.ToString());
}
double tmpDistance = 0.0, sumPiZi = 0.0, sumPi = 0.0;
tmpDistance = Distanse(x, y, Math.Ceiling(x), Math.Ceiling(y));
sumPi += 1.0 / tmpDistance;
sumPiZi += GetDN(ds, band, (int)Math.Ceiling(x), (int)Math.Ceiling(y)) / tmpDistance;
tmpDistance = Distanse(x, y, Math.Ceiling(x), Math.Floor(y));
sumPi += 1.0 / tmpDistance;
sumPiZi += GetDN(ds, band, (int)Math.Ceiling(x), (int)Math.Floor(y)) / tmpDistance;
tmpDistance = Distanse(x, y, Math.Floor(x), Math.Ceiling(y));
sumPi += 1.0 / tmpDistance;
sumPiZi += GetDN(ds, band, (int)Math.Floor(x), (int)Math.Ceiling(y)) / tmpDistance;
tmpDistance = Distanse(x, y, Math.Floor(x), Math.Floor(y));
sumPi += 1.0 / tmpDistance;
sumPiZi += GetDN(ds, band, (int)Math.Floor(x), (int)Math.Floor(y)) / tmpDistance;
return(sumPiZi / sumPi);
}
/// <summary>
/// 获取Feature的最大值和最小值 范围不准
/// </summary>
/// <param name="dsmDs"></param>
/// <param name="oriFeat"></param>
/// <param name="bufFeat"></param>
/// <param name="subRasterOff_Size"></param>
private static void getMaxMinValue(OSGeo.GDAL.Dataset dsmDs, OSGeo.OGR.Feature oriFeat, OSGeo.OGR.Feature bufFeat, int[] subRasterOff_Size)
{
//拿到当前Feature对应的栅格值（数组）
double[] rastValue = new double[subRasterOff_Size[2] * subRasterOff_Size[3]];
//把SUBimg的值读进数组
lock (dsmDs)
{
dsmDs.GetRasterBand(1).ReadRaster(
subRasterOff_Size[0],
subRasterOff_Size[1],
subRasterOff_Size[2],
subRasterOff_Size[3],
rastValue,
subRasterOff_Size[2],
subRasterOff_Size[3],
0, 0);
}
double max = rastValue.Max();
double min = rastValue.Min();
double cay = max - min;
oriFeat.SetField("TEMP", max - min);
oriFeat.SetField("MIN", 0);
oriFeat.SetField("MAX", min);
oriFeat.SetField("HIGHT", max);
}
/// <summary>
/// 创建slopeMap,设置无效值
/// </summary>
/// <param name="DemPath"></param>
/// <param name="OutSlpPath"></param>
static void CreateSlopeMap()
{
double dsm_NoDataValue; int dsm_HasNoDataValue;
OSGeo.GDAL.Band dsmBand = dsmDataset.GetRasterBand(1);
dsmBand.GetNoDataValue(out dsm_NoDataValue, out dsm_HasNoDataValue);
//调用GDal创建slope影像
if (File.Exists(slopePath))
{
gdalDriver.Delete(slopePath);
}
slopeDataSet = gdalDriver.Create(slopePath, dsm_Xsize, dsm_Ysize, 1, OSGeo.GDAL.DataType.GDT_Float32, null);
slopeDataSet.SetProjection(dsmDataset.GetProjection());
slopeDataSet.SetGeoTransform(dsm_Transform);
OSGeo.GDAL.Band slopeBand = slopeDataSet.GetRasterBand(1);
//设置无效值
if (dsm_HasNoDataValue == 0) //dsm没有无效值
{
//把DSM和SLOPE全设置成用户指定的值
dsmBand.SetNoDataValue(imgNodata);
slopeBand.SetNoDataValue(imgNodata);
}
else //DSM有无效值时
{
//把SLOPE和全局变量设置成DSM的无效值
imgNodata = dsm_NoDataValue;
slopeBand.SetNoDataValue(dsm_NoDataValue);
}
// BufferOnePixel(slopeBand);
}
/// <summary>
/// Initialise ImageStore with a GDAL dataset
/// </summary>
/// <param name="dataset">Dataset in EPSG:4326</param>
public GDALImageStore(
string dataSetName,
string sourcefilename,
OSGeo.GDAL.Dataset dataset,
string format)
{
//TODO: Allow serialization and deserialization of this class for persistency
m_dataSetName = dataSetName;
m_dataset = dataset;
m_sourcefilename = sourcefilename;
dataset.GetGeoTransform(m_transform);
m_lines = dataset.RasterYSize;
m_pixels = dataset.RasterXSize;
m_imageFileExtension = "png";
m_bands = dataset.RasterCount;
if (format.Equals("jpg"))
{
m_imageFileExtension = "jpg";
//m_tileformat = ImageFileFormat.Jpg;
}
else if (format.Equals("bmp"))
{
m_imageFileExtension = "bmp";
//m_tileformat = ImageFileFormat.Bmp;
}
else if (format.Equals("dds"))
{
m_imageFileExtension = "dds";
//m_tileformat = ImageFileFormat.Dds;
}
}
/// <summary>
/// 是否被释放
/// </summary>
/// <param name="myDS"></param>
/// <returns></returns>
public static bool IsDispose(this OSGeo.GDAL.Dataset myDS)
{
try
{
int e = myDS.RasterCount;
return(false);
}
catch { return(true); }
}
public void Dispose()
{
GC.SuppressFinalize(this);
if (_gDS != null)
{
_gDS.Dispose();
_gDS = null;
}
}
/// <summary>
/// Gdal to DotSpatial at Raster Level
/// </summary>
/// <param name="dataset">Gdal Dataset</param>
/// <param name="bandIndex">Index of Band</param>
/// <returns>Dotspatial Raster</returns>
public static DotSpatial.Data.IRaster Gdal2DSRaster(OSGeo.GDAL.Dataset dataset, int bandIndex)
{
DotSpatial.Data.IRaster result = null;
OSGeo.GDAL.Band band = dataset.GetRasterBand(bandIndex);
if (dataset != null)
{
switch (band.DataType)
{
case OSGeo.GDAL.DataType.GDT_Byte:
result = new GdalRaster <byte>(dataset, band);
break;
case OSGeo.GDAL.DataType.GDT_CFloat32:
case OSGeo.GDAL.DataType.GDT_CFloat64:
case OSGeo.GDAL.DataType.GDT_CInt16:
case OSGeo.GDAL.DataType.GDT_CInt32:
break;
case OSGeo.GDAL.DataType.GDT_Float32:
result = new GdalRaster <float>(dataset, band);
break;
case OSGeo.GDAL.DataType.GDT_Float64:
result = new GdalRaster <double>(dataset, band);
break;
case OSGeo.GDAL.DataType.GDT_Int16:
result = new GdalRaster <short>(dataset, band);
break;
case OSGeo.GDAL.DataType.GDT_UInt16:
case OSGeo.GDAL.DataType.GDT_Int32:
result = new GdalRaster <int>(dataset, band);
break;
case OSGeo.GDAL.DataType.GDT_TypeCount:
break;
case OSGeo.GDAL.DataType.GDT_UInt32:
result = new GdalRaster <long>(dataset, band);
break;
case OSGeo.GDAL.DataType.GDT_Unknown:
break;
default:
break;
}
}
if (result != null)
{
(result as DotSpatial.Data.Raster).Open();
}
return(result);
}
/************************************ 生成等值线 **********************************************/
public static string dzx(string filePath)
{
Console.WriteLine("开始创建等值线！");
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.GDAL.Gdal.AllRegister();
//无效值
double noDataValue;
//0不使用无效值,1使用无效值
int hasDataValue;
//读入数据源
OSGeo.GDAL.Dataset inData = OSGeo.GDAL.Gdal.Open(filePath, OSGeo.GDAL.Access.GA_ReadOnly);
//分析数据源
inData.GetRasterBand(1).GetNoDataValue(out noDataValue, out hasDataValue);
double min, max, mean, std;
inData.GetRasterBand(1).GetStatistics(0, 1, out min, out max, out mean, out std);
int jianG = 2;
int count = Convert.ToInt32((max - min) / jianG + 0.5);
double[] shu = new double[count];
for (int i = 0; i < count; i++)
{
shu[i] = min + jianG * i;
}
//创建空的SHP
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
string a = StaticTools.tempFilePath("shp", "原始等值线");
OSGeo.OGR.DataSource ds = dr.CreateDataSource(a, null);
OSGeo.OGR.Layer dzxLayer = ds.CreateLayer("", null, OSGeo.OGR.wkbGeometryType.wkbMultiLineString, null);
OSGeo.OGR.FieldDefn fieldDf0 = new OSGeo.OGR.FieldDefn("LID", OSGeo.OGR.FieldType.OFTInteger);
OSGeo.OGR.FieldDefn fieldDf1 = new OSGeo.OGR.FieldDefn("EVE", OSGeo.OGR.FieldType.OFTReal);
dzxLayer.CreateField(fieldDf0, 1); //ID
dzxLayer.CreateField(fieldDf1, 1); //Value
//Band(1), 间隔, 起始高度, 分段数量, 分段值数组, 是否有无效值, 无效值, 预置图层. ID字段, 高度值字段, null , null
OSGeo.GDAL.Gdal.ContourGenerate(inData.GetRasterBand(1), jianG, min, count, shu, hasDataValue, noDataValue, dzxLayer, 0, 1, null, null);
if (dzxLayer.GetFeatureCount(0) > 0)
{
Console.WriteLine("等值线创建完成！");
}
else
{
Console.WriteLine("等值线创建失败！");
}
ds.Dispose();
inData.Dispose();
return(a);
}
/// <summary>
/// 和GetData功能相同，但是使用GDAL直接从文件中读取数据。
/// </summary>
/// <param name="fileName">文件名字</param>
/// <param name="width">ref用于返回数据的宽度</param>
/// <param name="height">ref用于返回数据的高度</param>
/// <returns>一维数据数组,按行优先</returns>
private double[] GdalGetData(string fileName, ref int width, ref int height)
{
OSGeo.GDAL.Dataset dataset = OSGeo.GDAL.Gdal.Open(fileName, OSGeo.GDAL.Access.GA_ReadOnly);
width = dataset.RasterXSize;
height = dataset.RasterYSize;
double[] imageBuffer = new double[width * height];
OSGeo.GDAL.Band b = dataset.GetRasterBand(1);
b.ReadRaster(0, 0, width, height, imageBuffer, width, height, 0, 0);
return(imageBuffer);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="gdalDataSet">The gdal data set</param>
public GeoTransform(OSGeo.GDAL.Dataset gdalDataSet)
{
if (gdalDataSet == null)
{
throw new ArgumentException("GeoTransform constructor invoked with null dataset.", nameof(gdalDataSet));
}
gdalDataSet.GetGeoTransform(_transform);
ComputeInverse();
}
//返回值是函数的系数
//例如：y=a0+a1*x 返回值则为a0 a1
//例如：y=a0+a1*x+a2*x*x 返回值则为a0 a1 a2
#endregion
/*************************************************************************************************/
/************************************ 生成等值线 **********************************************/
public static string dzxPath(string filePath)
{
OSGeo.OGR.Ogr.RegisterAll();
OSGeo.GDAL.Gdal.AllRegister();
//无效值
double noDataValue;
//0不使用无效值,1使用无效值
int hasDataValue;
//读入数据源
OSGeo.GDAL.Dataset inData = OSGeo.GDAL.Gdal.Open(filePath, OSGeo.GDAL.Access.GA_ReadOnly);
//分析数据源
inData.GetRasterBand(1).GetNoDataValue(out noDataValue, out hasDataValue);
double min, max, mean, std;
inData.GetRasterBand(1).GetStatistics(0, 1, out min, out max, out mean, out std);
int jianG = 2;
int count = Convert.ToInt32((max - min) / jianG + 0.5);
double[] shu = new double[count];
for (int i = 0; i < count; i++)
{
shu[i] = min + jianG * i;
}
//创建空的SHP
string dzSavePath = filePath.Substring(0, filePath.LastIndexOf(".")) + "_dzx.shp";
OSGeo.OGR.Driver dr = OSGeo.OGR.Ogr.GetDriverByName("ESRI shapefile");
if (System.IO.File.Exists(dzSavePath))
{
System.IO.File.Delete(dzSavePath);
}
OSGeo.OGR.DataSource ds = dr.CreateDataSource(dzSavePath, null);
OSGeo.OGR.Layer dzxLayer = ds.CreateLayer("等值线", null, OSGeo.OGR.wkbGeometryType.wkbMultiLineString, null);
OSGeo.OGR.FieldDefn fieldDf0 = new OSGeo.OGR.FieldDefn("LID", OSGeo.OGR.FieldType.OFTInteger);
OSGeo.OGR.FieldDefn fieldDf1 = new OSGeo.OGR.FieldDefn("EVE", OSGeo.OGR.FieldType.OFTReal);
dzxLayer.CreateField(fieldDf0, 1); //ID
dzxLayer.CreateField(fieldDf1, 1); //Value
//Band(1), 间隔, 起始高度, 分段数量, 分段值数组, 是否有无效值, 无效值, 预置图层. ID字段, 高度值字段, null , null
OSGeo.GDAL.Gdal.ContourGenerate(inData.GetRasterBand(1), jianG, min, count, shu, hasDataValue, noDataValue, dzxLayer, 0, 1, null, null);
dzxLayer.Dispose();
ds.Dispose();
return(dzSavePath);
}
public static bool FT(OSGeo.GDAL.Dataset InputDS, OSGeo.GDAL.DataType OutDataType, string OutPath)
{
try
{
if (InputDS == null)
{
throw new ArgumentNullException("输入数据集为空。");
}
if (String.IsNullOrWhiteSpace(OutPath.Trim()))
{
throw new ArgumentNullException("输出路径为空或非法。");
}
OSGeo.GDAL.Driver Dri = OSGeo.GDAL.Gdal.GetDriverByName("Gtiff");
if (Dri == null)
{
throw new Exception("无法获取GDAL Driver。");
}
int xSize = InputDS.RasterXSize;
int ySize = InputDS.RasterYSize;
OSGeo.GDAL.Dataset DS = Dri.Create(OutPath, xSize, ySize, InputDS.RasterCount, OutDataType, null);
Tools.Common.CopyMetadata(InputDS, DS);
//Matrix<Complex32> M = new Matrix<Complex32>;
//for (int i = 0; i < InputDS.RasterCount; i++)
//{
for (int Row = 0; Row < ySize; Row++)
{
float[] Values = new float[xSize];
Complex32[] c = new Complex32[xSize];
//读取DN到数组
InputDS.GetRasterBand(1).ReadRaster(0, Row, xSize, 1, Values, xSize, 1, 0, 0);
for (int Col = 0; Col < xSize; Col++)
{
c[Col] = new Complex32(Values[Col], 0);
}
//M.Add(c);
//写结果到新栅格
//DS.GetRasterBand(1).WriteRaster(0, Row, xSize, 1, Values, xSize, 1, 0, 0);
DS.FlushCache();
Thread.Sleep(1);
}
//}
Dri.Dispose();
DS.Dispose();
return(true);
}
catch (Exception err)
{
MessageBox.Show(err.ToString());
return(false);
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="gdalDataset">The gdal dataset</param>
public GeoTransform(OSGeo.GDAL.Dataset gdalDataset)
{
if (gdalDataset == null)
{
throw new ArgumentException("GeoTransform constructor invoked with null dataset.", "gdalDataset");
}
var array = new double[6];
gdalDataset.GetGeoTransform(array);
_transform = array;
ComputeInverse();
}
/// <summary>
/// 模拟结束事件监听辅助函数
/// </summary>
protected void SimulateEndHelper(BaseCa ca)
{
// 将模拟结果添加到系统中
double[] buffer = ca.BeginBuffer;
int width = ca.Width;
int height = ca.Height;
//var map = GIS.FrameWork.Application.App.Map;
// 保存输出结果
var path = Application.StartupPath + @"\log";
if (!Directory.Exists(path)) //如果不存在就创建file文件夹
{
Directory.CreateDirectory(path); //创建该文件夹
}
var outputPath = path + @"\" + (dateNow.ToString("MMddyyhhmmss")) + (this.uuid++) + ".tif";
OSGeo.GDAL.Driver driverSave = OSGeo.GDAL.Gdal.GetDriverByName("GTiff");
OSGeo.GDAL.Dataset datasetSave = driverSave.Create(outputPath, width, height, 1, OSGeo.GDAL.DataType.GDT_Byte, null);
datasetSave.WriteRaster(0, 0, width, height, buffer, width, height, 1, new int[1] {
1
}, 0, 0, 0);
datasetSave.SetProjection(ca.projStr);
datasetSave.SetGeoTransform(ca.geoTransform);
datasetSave.GetRasterBand(1).SetNoDataValue(ca.noDataVal);
datasetSave.FlushCache();
datasetSave.Dispose();
driverSave.Dispose();
//// 翻转图像 ？
//buffer = InvertImage(buffer, width, height);
MessageBox.Show("模拟结束, 输出文件：" + outputPath);
//// 新建 GDAL dataset
//OSGeo.GDAL.Driver driver = OSGeo.GDAL.Gdal.GetDriverByName("MEM");
//OSGeo.GDAL.Dataset dataset = driver.Create("", width, height, 1, OSGeo.GDAL.DataType.GDT_Float64, null);
//dataset.WriteRaster(0, 0, width, height, buffer, width, height, 1, new int[1] { 1 }, 0, 0, 0);
//// 将GDAL dataset转化为IRaster数据集
//DotSpatial.Data.IRaster raster = GIS.GDAL.RasterConverter.Gdal2DSRaster(dataset, 1);
//raster.Name = "Result";
//map.Layers.Add(raster);
}
public override void Run()
{
OpenFileDialog openTiffDialog = new OpenFileDialog();
if (openTiffDialog.ShowDialog() == DialogResult.OK)
{
var tiffName = openTiffDialog.FileName;
OSGeo.GDAL.Dataset tiffDataset = OSGeo.GDAL.Gdal.Open(tiffName, OSGeo.GDAL.Access.GA_ReadOnly);
OSGeo.GDAL.Band band = tiffDataset.GetRasterBand(1);
DotSpatial.Data.IRaster raster = GIS.GDAL.RasterConverter.Gdal2DSRaster(tiffDataset, 1);
FileInfo fileInfo = new FileInfo(tiffName);
raster.Name = fileInfo.Name;
GIS.FrameWork.Application.App.Map.Layers.Add(raster);
}
}
public void LoadAffineTransform(string filename)
{
using (OSGeo.GDAL.Dataset dataset = OSGeo.GDAL.Gdal.Open(filename, OSGeo.GDAL.Access.GA_ReadOnly))
{
AffineTransform = new double[6];
dataset.GetGeoTransform(AffineTransform);
string targetProjection = "GEOGCS[\"Moon 2000\", DATUM[\"D_Moon_2000\", SPHEROID[\"Moon_2000_IAU_IAG\",1737400.0,0.0]], PRIMEM[\"Greenwich\",0], UNIT[\"Decimal_Degree\",0.0174532925199433]]";
var src = new OSGeo.OSR.SpatialReference(dataset.GetProjectionRef());
var dst = new OSGeo.OSR.SpatialReference(targetProjection);
pixelToLatLon = new OSGeo.OSR.CoordinateTransformation(src, dst);
latLonToPixel = new OSGeo.OSR.CoordinateTransformation(dst, src);
}
}
public MemoryMappedInt16Terrain(string referenceImage)
{
Open(TerrainImageFile);
using (OSGeo.GDAL.Dataset dataset = OSGeo.GDAL.Gdal.Open(referenceImage, OSGeo.GDAL.Access.GA_ReadOnly))
{
_affineTransform = new double[6];
dataset.GetGeoTransform(_affineTransform);
string projection = dataset.GetProjectionRef();
var src = new OSGeo.OSR.SpatialReference(projection);
var dst = new OSGeo.OSR.SpatialReference(PolarStereographic);
_pixelToLineSample = new OSGeo.OSR.CoordinateTransformation(src, dst);
}
}
private IRasterSet GetRasterSet(string fileName, OSGeo.GDAL.Dataset dataset)
{
IRasterSet rasterSet = null;
if (dataset != null && dataset.RasterCount > 0)
{
using var band = dataset.GetRasterBand(1);
if (band == null)
{
return(null);
}
switch (band.DataType)
{
case OSGeo.GDAL.DataType.GDT_Byte:
rasterSet = new GdalRasterSet <byte>(fileName, dataset);
break;
case OSGeo.GDAL.DataType.GDT_Int16:
rasterSet = new GdalRasterSet <short>(fileName, dataset);
break;
case OSGeo.GDAL.DataType.GDT_UInt16:
rasterSet = new GdalRasterSet <ushort>(fileName, dataset);
break;
case OSGeo.GDAL.DataType.GDT_Int32:
rasterSet = new GdalRasterSet <int>(fileName, dataset);
break;
case OSGeo.GDAL.DataType.GDT_UInt32:
rasterSet = new GdalRasterSet <uint>(fileName, dataset);
break;
case OSGeo.GDAL.DataType.GDT_CFloat32:
rasterSet = new GdalRasterSet <float>(fileName, dataset);
break;
case OSGeo.GDAL.DataType.GDT_CFloat64:
rasterSet = new GdalRasterSet <double>(fileName, dataset);
break;
default:
throw new NotImplementedException();
}
}
return(rasterSet);
}
IRasterSet IRasterDriver.Open(string fileName, bool update)
{
OSGeo.GDAL.Dataset dataset = null;
var access = update ? OSGeo.GDAL.Access.GA_Update : OSGeo.GDAL.Access.GA_ReadOnly;
try
{
dataset = OSGeo.GDAL.Gdal.Open(fileName, access);
}
catch (Exception e)
{
Debug.WriteLine($"打开“{fileName}”失败，错误信息：{e}");
}
IRasterSet rasterSet = GetRasterSet(fileName, dataset);
return(rasterSet);
}
protected override void SolveInstance(IGH_DataAccess DA)
{
string output = "";
try
{
GdalConfiguration.ConfigureOgr();
GdalConfiguration.ConfigureGdal();
output = "It works!";
}
catch (Exception e)
{
output = "{0} Exception caught. " + e;
}
string input = "";
DA.GetData(0, ref input);
string file = input;
int pickBand = 1;
DA.GetData(1, ref pickBand);
OSGeo.GDAL.Dataset ds = OSGeo.GDAL.Gdal.Open(file, OSGeo.GDAL.Access.GA_ReadOnly);
var band = ds.GetRasterBand(pickBand);
var bandXSize = band.XSize;
var bandYSize = band.YSize;
var data = new float[bandXSize * bandYSize];
band.ReadRaster(0, 0, bandXSize, bandYSize, data, bandXSize, bandYSize, 0, 0);
ds.GetMetadata(output);
ds = null;
DA.SetData(0, output);
DA.SetDataList(1, data);
}
private void Dispose(bool disposing)
{
if (!disposed)
{
if (disposing)
{
if (_GdalDataset != null)
{
try
{
_GdalDataset.Dispose();
}
finally { _GdalDataset = null; }
}
}
disposed = true;
}
}
private void openFileDSM_FileOk(object sender, CancelEventArgs e)
{
labDSMin.Text = openFileDSM.FileName;
OSGeo.GDAL.Gdal.AllRegister();
OSGeo.GDAL.Dataset ds = OSGeo.GDAL.Gdal.Open(openFileDSM.FileName, OSGeo.GDAL.Access.GA_ReadOnly);
double[] a = new double[6];
ds.GetGeoTransform(a);
double xx = a[0];
double yy = a[3];
double size = a[1];
double xSixe = ds.RasterXSize;
double ySixe = ds.RasterYSize;
labInFileInfo.Text += openFileDSM.SafeFileName + "：\r" + "\r\n"
+ "左上角X坐标：" + xx.ToString() + "\r"
+ "左上角Y坐标：" + yy.ToString() + "\r"
+ "像元尺寸：" + size.ToString() + "\r"
+ "图像大小：" + xSixe.ToString() + "*" + ySixe.ToString();
ds.Dispose();
}
/// <summary>
/// initialize a Gdal based raster layer
/// </summary>
/// <param name="strLayerName">Name of layer</param>
/// <param name="imageFilename">location of image</param>
public GdalRasterLayer(string strLayerName, string imageFilename)
{
this.LayerName = strLayerName;
this.Filename = imageFilename;
disposed = false;
OSGeo.GDAL.Gdal.AllRegister();
try
{
_GdalDataset = OSGeo.GDAL.Gdal.Open(_Filename, OSGeo.GDAL.Access.GA_ReadOnly);
imagesize = new Size(_GdalDataset.RasterXSize, _GdalDataset.RasterYSize);
_Envelope = this.GetExtent();
}
catch (Exception ex)
{
_GdalDataset = null;
throw new Exception("Couldn't load dataset. " + ex.Message + ex.InnerException);
}
}
protected override void SolveInstance(IGH_DataAccess DA)
{
GdalConfiguration.ConfigureOgr();
GdalConfiguration.ConfigureGdal();
string input = "";
DA.GetData(0, ref input);
string file = @"C:\Users\Paula\Desktop\Felipe\New\multi_1.20181031.grb2";
OSGeo.GDAL.Dataset ds = OSGeo.GDAL.Gdal.Open(file, OSGeo.GDAL.Access.GA_ReadOnly);
//string output = ds.GetProjectionRef();
string output = file;
DA.SetData(0, output);
}
/// <summary>
/// initialize a Gdal based raster layer
/// </summary>
/// <param name="strLayerName">Name of layer</param>
/// <param name="imageFilename">location of image</param>
public GdalRasterLayer(string strLayerName, string imageFilename)
{
this.LayerName = strLayerName;
this.Filename = imageFilename;
disposed = false;
OSGeo.GDAL.Gdal.AllRegister();
try
{
_GdalDataset = OSGeo.GDAL.Gdal.Open(_Filename, OSGeo.GDAL.Access.GA_ReadOnly);
imagesize = new Size(_GdalDataset.RasterXSize, _GdalDataset.RasterYSize);
_Envelope = this.GetExtent();
}
catch (Exception ex)
{
_GdalDataset = null;
throw new Exception("Couldn't load dataset. " + ex.Message + ex.InnerException);
}
}
private List <double[]> readImageCoordinatesBoundsInLonLat(OSGeo.GDAL.Dataset imageDataset)
{
var band = imageDataset.GetRasterBand(1);
if (band == null)
{
return(null);
}
var width = band.XSize;
var height = band.YSize;
double[] geoTransformerData = new double[6];
imageDataset.GetGeoTransform(geoTransformerData);
SpatialReference currentReference = new SpatialReference(imageDataset.GetProjectionRef());
SpatialReference newReference = GdalUtilities.getWgs84Reference();
CoordinateTransformation ct = new CoordinateTransformation(currentReference, newReference);
double[] northWestPoint = new double[2] {
geoTransformerData[0], geoTransformerData[3]
};
ct.TransformPoint(northWestPoint);
double[] southEastPoint = new double[2] {
geoTransformerData[0] + geoTransformerData[1] * width,
geoTransformerData[3] + geoTransformerData[5] * height
};
ct.TransformPoint(southEastPoint);
return(new List <double[]> {
northWestPoint, southEastPoint
});
}
//𝐿_𝑇=𝑎+𝑏*cos(𝑖)
//𝐿_𝐻=𝐿_𝑇+(cos(𝜃𝑠)+𝑎/𝑏)/(cos(𝑖)+𝑎/𝑏)
//cos𝑖=cos(𝜃𝑠)*cos𝑆+sin(𝜃𝑠) cos(𝜑𝑠−𝐴)
public static OSGeo.GDAL.Dataset CCorrectionn(OSGeo.GDAL.Dataset InputDS, OSGeo.GDAL.DataType OutputDataType, string OutPath)
{
return(null);
}
public RasterClass(IRasterDataset dataset, string filename, IPolygon polygon)
{
try
{
FileInfo fi = new FileInfo(filename);
_title = fi.Name;
_filename = filename;
_dataset = dataset;
OSGeo.GDAL.Gdal.AllRegister();
_gDS = OSGeo.GDAL.Gdal.Open(fi.FullName, 0);
if (_gDS == null && _gDS.RasterCount == 0)
{
_valid = false;
return;
}
_iWidth = _gDS.RasterXSize;
_iHeight = _gDS.RasterYSize;
switch (fi.Extension.ToLower())
{
case ".adf":
case ".gsd":
_type = RasterType.grid;
break;
//case ".jp2":
// _type = RasterType.wavelet;
// break;
}
using (OSGeo.GDAL.Band band = _gDS.GetRasterBand(1))
{
if (_gDS.RasterCount == 1)
{
if (band.DataType != OSGeo.GDAL.DataType.GDT_Byte)
{
_type = RasterType.grid;
}
}
band.GetMinimum(out _min, out _hasNoDataVal);
band.GetMaximum(out _max, out _hasNoDataVal);
band.GetNoDataValue(out _nodata, out _hasNoDataVal);
}
OSGeo.GDAL.Driver driver = _gDS.GetDriver();
double[] tfw = new double[6];
_gDS.GetGeoTransform(tfw);
string tfwFilename = fi.FullName.Substring(0, fi.FullName.Length - fi.Extension.Length);
switch (fi.Extension.ToLower())
{
case ".jpg":
case ".jpeg":
tfwFilename += ".jgw";
break;
case ".jp2":
tfwFilename += ".j2w";
break;
case ".tif":
case ".tiff":
tfwFilename += ".tfw";
break;
case ".ecw":
tfwFilename += ".eww";
break;
default:
break;
}
FileInfo tfwInfo = new FileInfo(tfwFilename);
_tfw = new TFWFile(tfw[0], tfw[3], tfw[1], tfw[2], tfw[4], tfw[5]);
if (tfwInfo.Exists)
{
_tfw.Filename = tfwFilename;
}
if (_tfw.X == 0.0 && _tfw.Y == 0.0 &&
Math.Abs(_tfw.dx_X) == 1.0 && _tfw.dx_Y == 0.0 &&
Math.Abs(_tfw.dy_Y) == 1.0 && _tfw.dy_X == 0.0 && driver != null)
{
if (tfwInfo.Exists)
{
_tfw = new TFWFile(tfwFilename);
}
else
{
_tfw.isValid = false;
}
}
else
{
// Bei dem Driver schein es nicht Pixelmitte sein, oder ist das bei GDAL generell
//if (driver.ShortName.ToLower() == "jp2openjpeg")
{
_tfw.X += (_tfw.dx_X / 2.0D + _tfw.dx_Y / 2.0D);
_tfw.Y += (_tfw.dy_X / 2.0D + _tfw.dy_Y / 2.0D);
}
}
FileInfo fiPrj = new FileInfo(fi.FullName.Substring(0, fi.FullName.Length - fi.Extension.Length) + ".prj");
if (fiPrj.Exists)
{
StreamReader sr = new StreamReader(fiPrj.FullName);
string wkt = sr.ReadToEnd();
sr.Close();
_sRef = gView.Framework.Geometry.SpatialReference.FromWKT(wkt);
}
else
{
fiPrj = new FileInfo(fi.FullName.Substring(0, fi.FullName.Length - fi.Extension.Length) + ".wkt");
if (fiPrj.Exists)
{
StreamReader sr = new StreamReader(fiPrj.FullName);
string wkt = sr.ReadToEnd();
sr.Close();
_sRef = gView.Framework.Geometry.SpatialReference.FromWKT(wkt);
}
}
if (polygon != null)
{
_polygon = polygon;
}
else
{
calcPolygon();
}
}
catch (Exception ex)
{
string errMsg = ex.Message;
_valid = false;
}
}
/// <summary>
/// 辐射定标。
/// </summary>
/// <param name="InputDS">输入的栅格数据集。</param>
/// <param name="OutDataType">输出的数据类型。</param>
/// <param name="Gain">增益倍数。</param>
/// <param name="Offset">偏移量。</param>
/// <param name="OutPath">输出栅格数据集的位置。</param>
/// <returns>返回操作成功或失败。</returns>
public static bool ApplyGainAndOffset(OSGeo.GDAL.Dataset InputDS, OSGeo.GDAL.DataType OutDataType, List <double> Gain, List <double> Offset, string OutPath)
{
try
{
if (InputDS == null)
{
throw new ArgumentNullException("输入数据集为空。");
}
if (String.IsNullOrWhiteSpace(OutPath.Trim()))
{
throw new ArgumentNullException("输出路径为空或非法。");
}
if ((Gain.Count != InputDS.RasterCount) || (Offset.Count != InputDS.RasterCount))
{
throw new IndexOutOfRangeException("增益数据或偏移数据与输入数据集波段数不符。");
}
OSGeo.GDAL.Driver Dri = OSGeo.GDAL.Gdal.GetDriverByName("Gtiff");
if (Dri == null)
{
throw new Exception("无法获取GDAL Driver。");
}
FrmProgress FP = new FrmProgress()
{
Text = "正在进行辐射定标...",
};
Thread t = new Thread(() =>
{
FP.ShowDialog();
});
t.SetApartmentState(ApartmentState.STA);
t.Start();
int xSize = InputDS.RasterXSize;
int ySize = InputDS.RasterYSize;
OSGeo.GDAL.Dataset DS = Dri.Create(OutPath, xSize, ySize, InputDS.RasterCount, OutDataType, null);
FP.Output("已创建输出数据集\"" + OutPath + "\"，数据类型为" + OutDataType.ToString() + "。");
Tools.Common.CopyMetadata(InputDS, DS);
for (int i = 0; i < InputDS.RasterCount; i++) //遍历每个波段
{
FP.SetProgress2("正在处理波段：", i + 1, InputDS.RasterCount, "");
for (int Row = 0; Row < ySize; Row++) //遍历每一行(y)
{
FP.SetProgress1("正在处理：", Row + 1, ySize, "行");
double[] Values = new double[xSize];
//读取DN到数组
InputDS.GetRasterBand(i + 1).ReadRaster(0, Row, xSize, 1, Values, xSize, 1, 0, 0);
for (int Col = 0; Col < xSize; Col++) //对每一个值进行计算
{
Values[Col] = GainOffset(Values[Col], Gain[i], Offset[i]);
}
//写结果到新栅格
DS.GetRasterBand(i + 1).WriteRaster(0, Row, xSize, 1, Values, xSize, 1, 0, 0);
DS.FlushCache();
Thread.Sleep(1);
if (FP.Canceled)
{
Thread.Sleep(500);
FP.Finish();
throw new OperationCanceledException("操作被用户取消。");
}
}
}
FP.Finish();
Dri.Dispose();
DS.Dispose();
return(true);
}
catch (Exception err)
{
MessageBox.Show(err.ToString());
return(false);
}
}
private void GetPreview(OSGeo.GDAL.Dataset dataset, System.Drawing.Size size, Graphics g, SharpMap.Geometries.BoundingBox bbox)
{
double[] geoTrans = new double[6];
dataset.GetGeoTransform(geoTrans);
GeoTransform GT = new GeoTransform(geoTrans);
int DsWidth = dataset.RasterXSize;
int DsHeight = dataset.RasterYSize;
Bitmap bitmap = new Bitmap(size.Width, size.Height, PixelFormat.Format24bppRgb);
int iPixelSize = 3; //Format24bppRgb = byte[b,g,r]
if (dataset != null)
{
/*
* if ((float)size.Width / (float)size.Height > (float)DsWidth / (float)DsHeight)
* size.Width = size.Height * DsWidth / DsHeight;
* else
* size.Height = size.Width * DsHeight / DsWidth;
*/
double left = Math.Max(bbox.Left, _Envelope.Left);
double top = Math.Min(bbox.Top, _Envelope.Top);
double right = Math.Min(bbox.Right, _Envelope.Right);
double bottom = Math.Max(bbox.Bottom, _Envelope.Bottom);
int x1 = (int)GT.PixelX(left);
int y1 = (int)GT.PixelY(top);
int x1width = (int)GT.PixelXwidth(right - left);
int y1height = (int)GT.PixelYwidth(bottom - top);
bitmap = new Bitmap(size.Width, size.Height, PixelFormat.Format24bppRgb);
BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, size.Width, size.Height), ImageLockMode.ReadWrite, bitmap.PixelFormat);
try
{
unsafe
{
for (int i = 1; i <= (dataset.RasterCount > 3 ? 3 : dataset.RasterCount); ++i)
{
byte[] buffer = new byte[size.Width * size.Height];
OSGeo.GDAL.Band band = dataset.GetRasterBand(i);
//band.ReadRaster(x1, y1, x1width, y1height, buffer, size.Width, size.Height, (int)GT.HorizontalPixelResolution, (int)GT.VerticalPixelResolution);
band.ReadRaster(x1, y1, x1width, y1height, buffer, size.Width, size.Height, 0, 0);
int p_indx = 0;
int ch = 0;
//#warning Check correspondance between enum and integer values
if (band.GetRasterColorInterpretation() == OSGeo.GDAL.ColorInterp.GCI_BlueBand)
{
ch = 0;
}
if (band.GetRasterColorInterpretation() == OSGeo.GDAL.ColorInterp.GCI_GreenBand)
{
ch = 1;
}
if (band.GetRasterColorInterpretation() == OSGeo.GDAL.ColorInterp.GCI_RedBand)
{
ch = 2;
}
if (band.GetRasterColorInterpretation() != OSGeo.GDAL.ColorInterp.GCI_PaletteIndex)
{
for (int y = 0; y < size.Height; y++)
{
byte *row = (byte *)bitmapData.Scan0 + (y * bitmapData.Stride);
for (int x = 0; x < size.Width; x++, p_indx++)
{
row[x * iPixelSize + ch] = buffer[p_indx];
}
}
}
else //8bit Grayscale
{
for (int y = 0; y < size.Height; y++)
{
byte *row = (byte *)bitmapData.Scan0 + (y * bitmapData.Stride);
for (int x = 0; x < size.Width; x++, p_indx++)
{
row[x * iPixelSize] = buffer[p_indx];
row[x * iPixelSize + 1] = buffer[p_indx];
row[x * iPixelSize + 2] = buffer[p_indx];
}
}
}
}
}
}
finally
{
bitmap.UnlockBits(bitmapData);
}
}
g.DrawImage(bitmap, new System.Drawing.Point(0, 0));
}
private void Dispose(bool disposing)
{
if (!disposed)
{
if (disposing)
if (_GdalDataset != null)
{
try
{
_GdalDataset.Dispose();
}
finally { _GdalDataset = null; }
}
disposed = true;
}
}