public static float[,] Raster2Mat(IRasterLayer rasterlayer) //将栅格数据转为二元数组
{
IRaster raster = rasterlayer.Raster;
IRaster2 raster2 = raster as IRaster2;
IRasterProps pRasterProps = (IRasterProps)raster;
IPnt pntstart = new DblPntClass();
pntstart.SetCoords(0, 0);
IPnt pntend = new DblPntClass();
pntend.SetCoords(pRasterProps.Width, pRasterProps.Height);
IPixelBlock3 unionPixelBlock = (IPixelBlock3)raster.CreatePixelBlock(pntend);
System.Single[,] floatMat;
try
{
raster.Read(pntstart, (IPixelBlock)unionPixelBlock);
floatMat = (System.Single[, ])unionPixelBlock.get_PixelData(0);
}
catch (Exception e) {
raster.Read(pntstart, (IPixelBlock)unionPixelBlock);
int[,] intMat = (int[, ])unionPixelBlock.get_PixelData(0);
floatMat = new System.Single[pRasterProps.Width, pRasterProps.Height];
Parallel.For(0, pRasterProps.Width, i =>
{
for (int j = 0; j < pRasterProps.Height; j++)
{
floatMat[i, j] = Convert.ToSingle(intMat[i, j]);
}
});
}
return(floatMat);
}
public void Write(float?[,] rasterValue, string format)
{
FileHelper.DeleteFile(_workSpace, _fileName, ".tif", ".tfw", ".tif.aux");
IRasterWorkspace2 rasterWs = OpenRasterWorkspace();
if (rasterWs == null)
{
throw new NullReferenceException("栅格文件打开失败");
}
IRasterDataset rasterDataset = rasterWs.CreateRasterDataset(_fileName + ".tif",
format, RasterInfo.OriginPoint, RasterInfo.Width, RasterInfo.Height,
RasterInfo.XCellSize, RasterInfo.YCellSize, 1, rstPixelType.PT_FLOAT,
RasterInfo.SpatialReference, true);
IRasterBandCollection rasterBands = (IRasterBandCollection)rasterDataset;
var rasterBand = rasterBands.Item(0);
var rasterProps = (IRasterProps)rasterBand;
//Set NoData if necessary. For a multiband image, NoData value needs to be set for each band.
rasterProps.NoDataValue = -1;
//Create a raster from the dataset.
IRaster raster = rasterDataset.CreateDefaultRaster();
//Create a pixel block.
IPnt blocksize = new PntClass();
blocksize.SetCoords(RasterInfo.Width, RasterInfo.Height);
IPixelBlock3 pixelblock = raster.CreatePixelBlock(blocksize) as IPixelBlock3;
//Populate some pixel values to the pixel block.
var pixels = (Array)pixelblock.get_PixelData(0);
for (int i = 0; i < RasterInfo.Width; i++)
{
for (int j = 0; j < RasterInfo.Height; j++)
{
if (rasterValue[i, j].HasValue)
{
pixels.SetValue((float)rasterValue[i, j], i, j);
}
else
{
pixels.SetValue(-1, i, j);
}
}
}
pixelblock.set_PixelData(0, pixels);
//Define the location that the upper left corner of the pixel block is to write.
IPnt upperLeft = new PntClass();
upperLeft.SetCoords(0, 0);
//Write the pixel block.
IRasterEdit rasterEdit = (IRasterEdit)raster;
rasterEdit.Write(upperLeft, (IPixelBlock)pixelblock);
//Release rasterEdit explicitly.
Marshal.ReleaseComObject(rasterEdit);
}
/// <summary>
/// Read pixels from the input Raster and fill the PixelBlock provided with processed pixels.
/// The RasterFunctionHelper object is used to handle pixel type conversion and resampling.
/// The log raster is the natural log of the raster.
/// </summary>
/// <param name="pTlc">Point to start the reading from in the Raster</param>
/// <param name="pRaster">Reference Raster for the PixelBlock</param>
/// <param name="pPixelBlock">PixelBlock to be filled in</param>
public void Read(IPnt pTlc, IRaster pRaster, IPixelBlock pPixelBlock)
{
try
{
myFunctionHelper.Read(pTlc, null, pRaster, pPixelBlock);
IPixelBlock3 pPixelBlock3 = (IPixelBlock3)pPixelBlock;
IRaster2 inRs2 = (IRaster2)inrs;
IRaster2 outRs2 = (IRaster2)outrs;
double mx, my;
outRs2.PixelToMap((int)pTlc.X, (int)pTlc.Y, out mx, out my);
int clm, rw;
inRs2.MapToPixel(mx, my, out clm, out rw);
IPnt pntLoc = new PntClass();
pntLoc.SetCoords(clm, rw);
IPnt pntSize = new PntClass();
pntSize.SetCoords(pPixelBlock.Width, pPixelBlock.Height);
IPixelBlock3 pBIn = (IPixelBlock3)inrs.CreatePixelBlock(pntSize);
inrs.Read(pntLoc, (IPixelBlock)pBIn);
for (int p = 0; p < pPixelBlock.Planes; p++)
{
pPixelBlock3.set_PixelData(p, pBIn.get_PixelData(p));
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
/// <summary>
/// Get the pixel values in a region of the input raster.
/// </summary>
/// <param name="tlCorner"></param>
/// <param name="brCorner"></param>
/// <param name="raster"></param>
/// <returns></returns>
public static double[,] GetValues(Position tlCorner, Position brCorner, IRaster raster)
{
int colCount = brCorner.Column - tlCorner.Column + 1;
int rowCount = brCorner.Row - tlCorner.Row + 1;
IPnt regionSize = new PntClass();
regionSize.SetCoords(colCount, rowCount);
IPixelBlock pixelBlock = raster.CreatePixelBlock(regionSize);
IPnt tl = new PntClass();
tl.SetCoords(tlCorner.Column, tlCorner.Row);
raster.Read(tl, pixelBlock);
double[,] values = new double[colCount, rowCount];
for (int x = 0; x < colCount; x++)
{
for (int y = 0; y < rowCount; y++)
{
Pixel cell = Editor.Edits[x + tlCorner.Column, y + tlCorner.Row];
if (cell == null)
{
values[x, y] = Convert.ToDouble(pixelBlock.GetVal(0, x, y));
}
else
{
values[x, y] = cell.NewValue;
}
}
}
return(values);
}
/// <summary>
/// Read pixels from the input Raster and fill the PixelBlock provided with processed pixels.
/// The RasterFunctionHelper object is used to handle pixel type conversion and resampling.
/// The log raster is the natural log of the raster.
/// </summary>
/// <param name="pTlc">Point to start the reading from in the Raster</param>
/// <param name="pRaster">Reference Raster for the PixelBlock</param>
/// <param name="pPixelBlock">PixelBlock to be filled in</param>
public void Read(IPnt pTlc, IRaster pRaster, IPixelBlock pPixelBlock)
{
try
{
// Call Read method of the Raster Function Helper object.
//Console.WriteLine("Before Read");
myFunctionHelper.Read(pTlc, null, pRaster, pPixelBlock);
IRaster mosRs = (IRaster)mos;
IPnt pntSize = new PntClass();
pntSize.SetCoords(pPixelBlock.Width, pPixelBlock.Height);
IPixelBlock pb = mosRs.CreatePixelBlock(pntSize);
mosRs.Read(pTlc, pb);
for (int i = 0; i < pb.Planes; i++)
{
pPixelBlock.set_SafeArray(i, pb.get_SafeArray(i));
}
}
catch (Exception exc)
{
System.Exception myExc = new System.Exception("Exception caught in Read method of mosaic Function. " + exc.Message, exc);
Console.WriteLine(exc.ToString());
}
}
/// <summary>
/// Read pixels from the input Raster and fill the PixelBlock provided with processed pixels.
/// The RasterFunctionHelper object is used to handle pixel type conversion and resampling.
/// The log raster is the natural log of the raster.
/// </summary>
/// <param name="pTlc">Point to start the reading from in the Raster</param>
/// <param name="pRaster">Reference Raster for the PixelBlock</param>
/// <param name="pPixelBlock">PixelBlock to be filled in</param>
public void Read(IPnt pTlc, IRaster pRaster, IPixelBlock pPixelBlock)
{
try
{
// Call Read method of the Raster Function Helper object.
//System.Array noDataValueArr = (System.Array)((IRasterProps)inrsBandsCoef).NoDataValue;
//Console.WriteLine("Before Read");
myFunctionHelper.Read(pTlc, null, pRaster, pPixelBlock);
//Console.WriteLine("After Read");
int pBHeight = pPixelBlock.Height;
int pBWidth = pPixelBlock.Width;
IPnt pbSize = new PntClass();
pbSize.SetCoords(pBWidth, pBHeight);
IPixelBlock3 outPb = (IPixelBlock3)inrsBandsCoef.CreatePixelBlock(pbSize);//independent variables
inrsBandsCoef.Read(pTlc, (IPixelBlock)outPb);
int pBRowIndex = 0;
int pBColIndex = 0;
IPixelBlock3 ipPixelBlock = (IPixelBlock3)pPixelBlock;
//System.Array[] pArr = new System.Array[outPb.Planes];
//for (int coefnBand = 0; coefnBand < outPb.Planes; coefnBand++)
//{
// System.Array pixelValues = (System.Array)(outPb.get_PixelData(coefnBand));
// pArr[coefnBand] = pixelValues;
//}
System.Array pValues = (System.Array)ipPixelBlock.get_PixelData(0);//(System.Array)(td);
for (int i = pBRowIndex; i < pBHeight; i++)
{
for (int k = pBColIndex; k < pBWidth; k++)
{
double[] xVls = new double[outPb.Planes];
bool ndT = true;
for (int coefnBand = 0; coefnBand < outPb.Planes; coefnBand++)
{
//float noDataValue = System.Convert.ToSingle(noDataValueArr.GetValue(coefnBand));
object pObj = outPb.GetVal(coefnBand, k, i);
if (pObj == null)
{
ndT = false;
break;
}
float pixelValue = Convert.ToSingle(pObj);
xVls[coefnBand] = pixelValue;
}
if (ndT)
{
int c = cluster.computNew(xVls);
pValues.SetValue(c, k, i);
}
}
}
ipPixelBlock.set_PixelData(0, pValues);
}
catch (Exception exc)
{
System.Exception myExc = new System.Exception("Exception caught in Read method of Cluster Function. " + exc.Message, exc);
Console.WriteLine(exc.ToString());
}
}
private void updateWithMergedValues(IEnvelope env, IPixelBlock3 ipPixelBlock)
{
System.Array[] outPixelValuesArr = new System.Array[ipPixelBlock.Planes];
List <System.Array[]> inPixelValuesArrLst = new List <System.Array[]>();
List <System.Array> inPixelNoDataArrLst = new List <System.Array>();
IPnt pntSize = new PntClass();
pntSize.SetCoords(ipPixelBlock.Width, ipPixelBlock.Height);
ISpatialFilter spFlt = new SpatialFilterClass();
spFlt.Geometry = (IGeometry)env;
spFlt.GeometryField = ftrCls.ShapeFieldName;
spFlt.SpatialRel = esriSpatialRelEnum.esriSpatialRelOverlaps;
IFeatureCursor fCur = ftrCls.Search(spFlt, false);
int fIndex = ftrCls.FindField("catIndex");
IFeature ftr = fCur.NextFeature();
for (int i = 0; i < ipPixelBlock.Planes; i++)
{
outPixelValuesArr[i] = (System.Array)ipPixelBlock.get_PixelData(i);
}
while (ftr != null)
{
int rsIndex = System.Convert.ToInt32(ftr.get_Value(fIndex));
IRaster rs = inrs[rsIndex];
IPixelBlock inputPb = rs.CreatePixelBlock(pntSize);
IRaster2 rs2 = (IRaster2)rs;
int pClm, pRw;
rs2.MapToPixel(env.XMin, env.YMax, out pClm, out pRw);
IPnt tlc = new PntClass();
tlc.SetCoords(pClm, pRw);
rs.Read(tlc, inputPb);
System.Array[] inPixelValuesArr = new System.Array[inputPb.Planes];
for (int i = 0; i < inputPb.Planes; i++)
{
inPixelValuesArr[i] = (System.Array)inputPb.get_SafeArray(i);
}
inPixelNoDataArrLst.Add((System.Array)((IRasterProps)rs).NoDataValue);
inPixelValuesArrLst.Add(inPixelValuesArr);
ftr = fCur.NextFeature();
}
for (int i = 0; i < outPixelValuesArr.Length; i++)
{
for (int r = 0; r < ipPixelBlock.Height; r++)
{
for (int c = 0; c < ipPixelBlock.Width; c++)
{
double vl = getValue(i, c, r, inPixelValuesArrLst, inPixelNoDataArrLst);
outPixelValuesArr[i].SetValue(vl, c, r);
}
}
}
for (int i = 0; i < outPixelValuesArr.Length; i++)
{
ipPixelBlock.set_PixelData(i, outPixelValuesArr[i]);
}
}
private bool writeBlockDataToFile(Point2D ptLeftTop, byte[,] dbData, int[] nSize, IRaster pRaster /*, IRasterEdit rasterEdit*/)
{
if (pRaster == null)
{
return(false);
}
try
{
//Create a pixel block using the weight and height of the raster dataset.
//If the raster dataset is large, a smaller pixel block should be used.
//Refer to the topic "How to access pixel data using a raster cursor".
int nWidth = nSize[0];
int nHeight = nSize[1];
IPnt blocksize = new PntClass();
blocksize.SetCoords(nWidth, nHeight);
IPixelBlock3 pixelblock = pRaster.CreatePixelBlock(blocksize) as IPixelBlock3;
//Populate some pixel values to the pixel block.
System.Array pixels;
pixels = (System.Array)pixelblock.get_PixelData(0);
for (int i = 0; i < nWidth; i++)
{
for (int j = 0; j < nHeight; j++)
{
pixels.SetValue(dbData[i, j], i, j);
}
}
pixelblock.set_PixelData(0, (System.Array)pixels);
//Define the location that the upper left corner of the pixel block is to write.
IPnt upperLeft = new PntClass();
upperLeft.SetCoords(ptLeftTop.X, ptLeftTop.Y);
//Write the pixel block.
IRasterEdit rasterEdit = (IRasterEdit)pRaster;
rasterEdit.Write(upperLeft, (IPixelBlock)pixelblock);
//System.Runtime.InteropServices.Marshal.ReleaseComObject(rasterEdit);
rasterEdit.Refresh();
return(true);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Error: " + ex.Message);
return(false);
}
GC.Collect();
return(true);
}
//获取最大最小栅格值
private void SetMaxMinValue(int flag)
{
if (flag == 1)
{
textBoxMax.Text = "高：255";
textBoxMin.Text = "低：0";
return;
}
uint valueMax = 50;
uint valueMin = 50;
IRasterLayer pRasterLayer = m_layer as IRasterLayer;
IRaster pRaster = pRasterLayer.Raster;
IRasterProps pRasterProps = pRaster as IRasterProps;
int Height = pRasterProps.Height;
int Width = pRasterProps.Width;
double dX = pRasterProps.MeanCellSize().X;
double dY = pRasterProps.MeanCellSize().Y; //栅格的高度
IEnvelope extent = pRasterProps.Extent; //当前栅格数据集的范围
rstPixelType pixelType = pRasterProps.PixelType; //当前栅格像素类型
IPnt pntSize = new PntClass();
pntSize.SetCoords(dX, dY);
IPixelBlock pixelBlock = pRaster.CreatePixelBlock(pntSize);
IPnt pnt = new PntClass();
for (int i = 0; i < Height; i += 10)
{
for (int j = 0; j < Width; j += 10)
{
pnt.SetCoords(i, j);
pRaster.Read(pnt, pixelBlock);
if (pixelBlock != null)
{
object obj = pixelBlock.GetVal(0, 0, 0);
uint temp = Convert.ToUInt32(obj);
if (temp > valueMax)
{
valueMax = temp;
}
else if (temp < valueMin)
{
valueMin = temp;
}
}
}
}
textBoxMax.Text = "高：" + valueMax.ToString();
textBoxMin.Text = "低：" + valueMin.ToString();
}
/// <summary>
/// Gets value of pixel at the specified position.
/// </summary>
/// <param name="pos"></param>
/// <param name="raster"></param>
/// <returns></returns>
public static double GetValue(Position pos, IRaster raster)
{
IPnt regionSize = new PntClass();
regionSize.SetCoords(1, 1);
IPixelBlock pixelBlock = raster.CreatePixelBlock(regionSize);
IPnt tl = new PntClass();
tl.SetCoords(pos.Column, pos.Row);
raster.Read(tl, pixelBlock);
return(Convert.ToDouble(pixelBlock.GetVal(0, 0, 0)));
}
private IPixelBlock GetAllPixelBlock(int width, int height)
{
IRaster pRaster = GetRaster();
IPnt pnt = new PntClass();
pnt.SetCoords(0, 0);
IPnt pntSize = new PntClass();
pntSize.SetCoords(width, height);
IPixelBlock pixelBlock = pRaster.CreatePixelBlock(pntSize);
pRaster.Read(pnt, pixelBlock);
return(pixelBlock);
}
public bool readBlockDataToFile(Point2D ptLeftTop, ref double[,] dbData, IRaster pRaster /*, IRasterEdit rasterEdit*/)
{
if (pRaster == null)
{
return(false);
}
try
{
//Create a pixel block using the weight and height of the raster dataset.
//If the raster dataset is large, a smaller pixel block should be used.
//Refer to the topic "How to access pixel data using a raster cursor".
int nWidth = dbData.GetLength(0);
int nHeight = dbData.GetLength(1);
IPnt blocksize = new PntClass();
blocksize.SetCoords(nWidth, nHeight);
//Define the location that the upper left corner of the pixel block is to write.
IPnt upperLeft = new PntClass();
upperLeft.SetCoords(ptLeftTop.X, ptLeftTop.Y);
IPixelBlock3 pixelblock = pRaster.CreatePixelBlock(blocksize) as IPixelBlock3;
pRaster.Read(upperLeft, pixelblock as IPixelBlock);
//Populate some pixel values to the pixel block.
System.Array pixels;
pixels = (System.Array)pixelblock.get_PixelData(0);
for (int i = 0; i < nWidth; i++)
{
for (int j = 0; j < nHeight; j++)
{
dbData[i, j] = Convert.ToDouble(pixels.GetValue(i, j));//.GetType().;
}
}
return(true);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Error: " + ex.Message);
return(false);
}
GC.Collect();
return(true);
}
/// <summary>
/// 读取数据
/// </summary>
/// <param name="xIndex">水平方向的序号</param>
/// <param name="yIndex">垂直方向的序号</param>
/// <returns>获取的值，如果为null,表明该位置没有数据</returns>
public object Read(int xIndex, int yIndex)
{
IRaster pRaster = GetRaster();
IPnt pnt = new PntClass();
pnt.SetCoords(xIndex, yIndex);
IPnt pntSize = new PntClass();
pntSize.SetCoords(1, 1);
IPixelBlock pixelBlock = pRaster.CreatePixelBlock(pntSize);
pRaster.Read(pnt, pixelBlock);
object obj = pixelBlock.GetVal(0, 0, 0);
return(obj);
}
public static double GetPixelVal(IRaster pRaster, IPoint pPoint)
{
IPixelBlock pPixelBlock;
IPnt pPnt;
IPnt pCurrentPnt;
ISpatialReference pSR;
pSR = pPoint.SpatialReference;
pPnt = new DblPnt();
pPnt.SetCoords(1.0, 1.0);
pPixelBlock = pRaster.CreatePixelBlock(pPnt);
pCurrentPnt = GetCurrPnt(pRaster, pPoint.X, pPoint.Y, pSR);
pRaster.Read(pCurrentPnt, pPixelBlock);
return(Convert.ToDouble(string.Format("{0,10:###0.0000}", pPixelBlock.GetVal(0, 0, 0))));
}
public void WriteToSDEFromPixelArray(IRasterWorkspaceEx irasterWorkspaceEx_0, string string_0)
{
IRasterDataset rasterDataset = irasterWorkspaceEx_0.CreateRasterDataset(string_0, 3, rstPixelType.PT_SHORT,
new RasterStorageDef(), "", new RasterDef(), null);
IRaster raster = rasterDataset.CreateDefaultRaster();
IRasterProps rasterProp = raster as IRasterProps;
int num = 1000;
int num1 = 1000;
IEnvelope envelopeClass = new Envelope()
{
XMin = 100,
XMax = 500,
YMin = 100,
YMax = 500
} as IEnvelope;
rasterProp.Extent = envelopeClass;
rasterProp.Width = 1000;
rasterProp.Height = 1000;
IPnt pntClass = new Pnt();
pntClass.SetCoords((double)1000, (double)1000);
IPixelBlock3 pixelBlock3 = raster.CreatePixelBlock(pntClass) as IPixelBlock3;
pntClass.SetCoords(0, 0);
for (int i = 0; i < 3; i++)
{
object pixelData = pixelBlock3.PixelData[i];
for (int j = 0; j < num; j++)
{
int num2 = 0;
while (num2 < num1)
{
num2++;
}
}
pixelBlock3.PixelData[i] = pixelData;
}
(raster as IRasterEdit).Write(pntClass, pixelBlock3 as IPixelBlock);
}
private bool WriteToRaster(IRaster pRaster, byte[,] dbData, Point2D ptLeftTop)
{
//Create a pixel block using the weight and height of the raster dataset.
//If the raster dataset is large, a smaller pixel block should be used.
//Refer to the topic "How to access pixel data using a raster cursor".
IRasterProps pProps = pRaster as IRasterProps;
int width = pProps.Width;
int height = pProps.Height;
IPnt blocksize = new PntClass();
blocksize.SetCoords(width, height);
IPixelBlock3 pixelblock = pRaster.CreatePixelBlock(blocksize) as IPixelBlock3;
//Populate some pixel values to the pixel block.
System.Array pixels;
pixels = (System.Array)pixelblock.get_PixelData(0);
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
pixels.SetValue(dbData[i, j], i, j);
}
}
pixelblock.set_PixelData(0, (System.Array)pixels);
//Define the location that the upper left corner of the pixel block is to write.
IPnt upperLeft = new PntClass();
upperLeft.SetCoords(ptLeftTop.X, ptLeftTop.Y);
//Write the pixel block.
IRasterEdit rasterEdit = (IRasterEdit)pRaster;
rasterEdit.Write(upperLeft, (IPixelBlock)pixelblock);
return(true);
}
private void updateWithMergedValues(IEnvelope env, IPixelBlock3 ipPixelBlock)
{
System.Array[] outPixelValuesArr = new System.Array[ipPixelBlock.Planes];
IPnt pntSize = new PntClass();
pntSize.SetCoords(ipPixelBlock.Width, ipPixelBlock.Height);
ISpatialFilter spFlt = new SpatialFilterClass();
spFlt.Geometry = (IGeometry)env;
spFlt.GeometryField = ftrCls.ShapeFieldName;
spFlt.SpatialRel = esriSpatialRelEnum.esriSpatialRelIndexIntersects;
IFeatureCursor fCur = ftrCls.Search(spFlt, false);
////int fIndex = ftrCls.FindField("catIndex");
IFeature ftr = fCur.NextFeature();
for (int i = 0; i < ipPixelBlock.Planes; i++)
{
outPixelValuesArr[i] = (System.Array)ipPixelBlock.get_PixelData(i);
}
//IQueryFilter qf = new QueryFilterClass();
//string s1 = "(XMIN <= " + env.XMin.ToString() + " AND XMAX >= " + env.XMax.ToString() + " AND YMIN <= " + env.YMin.ToString() + " AND YMAX >= " + env.YMax.ToString() + ")";
//string s2 = "(XMIN > " + env.XMin.ToString() + " AND XMIN < " + env.XMax.ToString() + " AND YMIN <= " + env.YMin.ToString() + " AND YMAX >= " + env.YMax.ToString() + ")";
//string s3 = "(XMAX < " + env.XMax.ToString() + " AND XMIN > " + env.XMin.ToString() + " AND YMIN <= " + env.YMin.ToString() + " AND YMAX >= " + env.YMax.ToString() + ")";
//string s4 = "(YMIN > " + env.YMin.ToString() + " AND YMIN < " + env.YMax.ToString() + " AND XMIN <= " + env.XMin.ToString() + " AND XMAX >= " + env.XMax.ToString() + ")";
//string s5 = "(YMAX < " + env.YMax.ToString() + " AND YMIN > " + env.YMin.ToString() + " AND XMIN <= " + env.XMin.ToString() + " AND XMAX >= " + env.XMax.ToString() + ")";
//qf.WhereClause = s1 + " OR " + s2 + " OR " + s3 + " OR " + s4 + " OR " + s5;
//ICursor cur = tbl.Search(qf, false);
//IRow rw = cur.NextRow();
List <IPixelBlock> inPbValue = new List <IPixelBlock>();
//while (rw != null)
//{
// int rsIndex = System.Convert.ToInt32(rw.get_Value(catIndex));
// IRaster rs = inrs[rsIndex];
// IPixelBlock inputPb = rs.CreatePixelBlock(pntSize);
// IRaster2 rs2 = (IRaster2)rs;
// int pClm, pRw;
// rs2.MapToPixel(env.XMin, env.YMax, out pClm, out pRw);
// IPnt tlc = new PntClass();
// tlc.SetCoords(pClm, pRw);
// rs.Read(tlc, inputPb);
// inPbValue.Add(inputPb);
// rw = cur.NextRow();
//}
while (ftr != null)
{
int rsIndex = System.Convert.ToInt32(ftr.get_Value(catIndex));
IRaster rs = inrs[rsIndex];
IPixelBlock inputPb = rs.CreatePixelBlock(pntSize);
IRaster2 rs2 = (IRaster2)rs;
int pClm, pRw;
rs2.MapToPixel(env.XMin, env.YMax, out pClm, out pRw);
IPnt tlc = new PntClass();
tlc.SetCoords(pClm, pRw);
rs.Read(tlc, inputPb);
inPbValue.Add(inputPb);
ftr = fCur.NextFeature();
}
for (int i = 0; i < ipPixelBlock.Planes; i++)
{
for (int r = 0; r < ipPixelBlock.Height; r++)
{
for (int c = 0; c < ipPixelBlock.Width; c++)
{
object vl = getValue(i, c, r, inPbValue);
outPixelValuesArr[i].SetValue(vl, c, r);
}
}
}
for (int i = 0; i < outPixelValuesArr.Length; i++)
{
ipPixelBlock.set_PixelData(i, outPixelValuesArr[i]);
}
}
public IRaster TINToDEM(ITin pTin)
{
IPoint pOrigin = pTin.Extent.LowerLeft;
IWorkspaceFactory pworkspaceFactory = new RasterWorkspaceFactory();
ESRI.ArcGIS.Geodatabase.IWorkspaceName pworkspaceName = pworkspaceFactory.Create(null, "MyWorkspace", null, 0);
ESRI.ArcGIS.esriSystem.IName pname = (IName)pworkspaceName;
ESRI.ArcGIS.Geodatabase.IWorkspace inmemWor = (IWorkspace)pname.Open();
IPoint originpoint = pOrigin;
IRasterWorkspace2 rasterws = (IRasterWorkspace2)inmemWor;
int nCol, nRow;
nCol = 500;
nRow = 500;
double cellsizeX, cellsizeY;
cellsizeX = pTin.Extent.Width / nCol;
cellsizeY = pTin.Extent.Height / nRow;
//用于计算的 float型的栅格数据
IRasterDataset demdataset = rasterws.CreateRasterDataset("Dataset", "MEM", originpoint, nCol, nRow,
(double)cellsizeX, (double)cellsizeY, 1, rstPixelType.PT_DOUBLE, null, true);
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(pname);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pworkspaceFactory);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pworkspaceName);
System.Runtime.InteropServices.Marshal.ReleaseComObject(inmemWor);
}
catch { }
//IRawPixels pRawPixels = GetRawPixels(pRDS, 0);
IRaster pRaster = demdataset.CreateDefaultRaster();
IPnt pBlockSize = new DblPnt();
//nCol = 50;
//nRow = 50;
pBlockSize.X = nCol;
pBlockSize.Y = nRow;
IPixelBlock pPixelBlock = pRaster.CreatePixelBlock(pBlockSize);
//IPixelBlock pPixelBlock = pRawPixels.CreatePixelBlock(pBlockSize);
IPixelBlock3 pPixelBlock3 = pPixelBlock as IPixelBlock3;
//object val = pPixelBlock.get_SafeArray(0);
ITinSurface pTinSurf = pTin as ITinSurface;
// IRasterProps pRasterProps = pRawPixels as IRasterProps;
IRasterProps pRasterProps = pRaster as IRasterProps;
object nodata;
//pOrigin.X = pOrigin.X + (cellsize * 0.5);
//pOrigin.Y = pOrigin.Y + (cellsize * nRow) - (cellsize * 0.5);
pOrigin.X = pOrigin.X;
pOrigin.Y = pOrigin.Y + (cellsizeY * nRow);
nodata = pRasterProps.NoDataValue;
IGeoDatabaseBridge2 pbridge2 = (IGeoDatabaseBridge2) new GeoDatabaseHelperClass();
//这个pOrigin为栅格左上角
//pbridge2.QueryPixelBlock(pTinSurf, pOrigin.X, pOrigin.Y, cellsize, cellsize, esriRasterizationType.esriElevationAsRaster, nodata, ref val);
//if (pTin.ProcessCancelled)
// return null;
//val.GetType();
CalPixelArray(pTinSurf, pOrigin.X, pOrigin.Y, cellsizeX, cellsizeY, ref pPixelBlock3);
IPnt pOffset = new DblPnt();
pOffset.X = 0;
pOffset.Y = 0;
//pPixelBlock3.set_PixelData(0, val);
//pRawPixels.Write(pOffset, (IPixelBlock)pPixelBlock3);//写入硬盘
IRasterEdit prasteredit = pRaster as IRasterEdit;
prasteredit.Write(pOffset, (IPixelBlock)pPixelBlock3);
//pRDS = OpenOutputRasterDataset(sDir, sName);
//IPixelBlock pb = pRaster.CreatePixelBlock(pBlockSize);
//pRaster.Read(pOffset,pb);
return(pRaster);
}
public IRasterDataset TinToRaster_new(ITinAdvanced pTin, esriRasterizationType eRastConvType, String sDir, String sName, rstPixelType ePixelType, Double cellsize, IEnvelope pExtent, bool bPerm)
{
IPoint pOrigin = pExtent.LowerLeft;
//pOrigin.X = pOrigin.X - (cellsize * 0.5);
//pOrigin.Y = pOrigin.Y - (cellsize * 0.5);
pOrigin.X = pOrigin.X;
pOrigin.Y = pOrigin.Y;
int nCol, nRow;
nCol = (int)Math.Round(pExtent.Width / cellsize);
nRow = (int)Math.Round(pExtent.Height / cellsize);
IGeoDataset pGDS = pTin as IGeoDataset;
ISpatialReference2 pSR = pGDS.SpatialReference as ISpatialReference2;
//这个pOrigin为栅格左下角
IWorkspaceFactory pworkspaceFactory = new RasterWorkspaceFactory();
IRasterWorkspace2 rasterws = pworkspaceFactory.OpenFromFile(sDir, 0) as IRasterWorkspace2;
IPoint originpoint = pOrigin;
//用于计算的 float型的栅格数据
IRasterDataset demdataset = rasterws.CreateRasterDataset(sName, "TIFF", originpoint, nCol, nRow,
cellsize, cellsize, 1, rstPixelType.PT_DOUBLE, null, true);
IRasterDataset pRDS = demdataset;
//IRawPixels pRawPixels = GetRawPixels(pRDS, 0);
IRaster pRaster = pRDS.CreateDefaultRaster();
IPnt pBlockSize = new DblPnt();
//nCol = 50;
//nRow = 50;
pBlockSize.X = nCol;
pBlockSize.Y = nRow;
IPixelBlock pPixelBlock = pRaster.CreatePixelBlock(pBlockSize);
//IPixelBlock pPixelBlock = pRawPixels.CreatePixelBlock(pBlockSize);
IPixelBlock3 pPixelBlock3 = pPixelBlock as IPixelBlock3;
//object val = pPixelBlock.get_SafeArray(0);
ITinSurface pTinSurf = pTin as ITinSurface;
// IRasterProps pRasterProps = pRawPixels as IRasterProps;
IRasterProps pRasterProps = pRaster as IRasterProps;
object nodata;
//pOrigin.X = pOrigin.X + (cellsize * 0.5);
//pOrigin.Y = pOrigin.Y + (cellsize * nRow) - (cellsize * 0.5);
pOrigin.X = pOrigin.X;
pOrigin.Y = pOrigin.Y + (cellsize * nRow);
nodata = pRasterProps.NoDataValue;
IGeoDatabaseBridge2 pbridge2 = (IGeoDatabaseBridge2) new GeoDatabaseHelperClass();
//这个pOrigin为栅格左上角
//pbridge2.QueryPixelBlock(pTinSurf, pOrigin.X, pOrigin.Y, cellsize, cellsize, esriRasterizationType.esriElevationAsRaster, nodata, ref val);
//if (pTin.ProcessCancelled)
// return null;
//val.GetType();
CalPixelArray(pTinSurf, pOrigin.X, pOrigin.Y, cellsize, cellsize, ref pPixelBlock3);
IPnt pOffset = new DblPnt();
pOffset.X = 0;
pOffset.Y = 0;
//pPixelBlock3.set_PixelData(0, val);
//pRawPixels.Write(pOffset, (IPixelBlock)pPixelBlock3);//写入硬盘
IRasterEdit prasteredit = pRaster as IRasterEdit;
prasteredit.Write(pOffset, (IPixelBlock)pPixelBlock3);
//pRDS = OpenOutputRasterDataset(sDir, sName);
//IPixelBlock pb = pRaster.CreatePixelBlock(pBlockSize);
//pRaster.Read(pOffset,pb);
// ISaveAs pSaveas = pRasterProps as ISaveAs2;
// pSaveas.SaveAs(sDir + "\\" + sName, null, "TIFF");
prasteredit.Refresh();
return(pRDS);
}
//逐点算法
public bool ImageReprojectionRange(IRaster pSrcRaster, out IRaster pDstRaster, ExOriPara exori,
double dbFocus, double fx, double fy, int nImgWidth, int nImgHeight, int nGeoRange)
{
pDstRaster = null;
Pt2i ptSubImgLeftTop = new Pt2i();
double[,] dbSubDemData = getSubDem(pSrcRaster, exori.pos, nGeoRange, ref ptSubImgLeftTop);
if (dbSubDemData == null)
{
return(false);
}
IRasterProps pProps = pSrcRaster as IRasterProps;
int nDemHeight = pProps.Height;
int nDemWidth = pProps.Width;
IRaster2 pRaster2 = pSrcRaster as IRaster2;
double dbNoDataValue = getNoDataValue(pProps.NoDataValue);
//object pNodata = pProps.NoDataValue;
//double value=((double[])pNodata)[0];
//double dbNoDataValue =double.Parse((float[]pNodata)[0].ToString());
//double dbNoDataValue = Convert.ToDouble(((double[]))[0]);
//object dbNoDataValue = Convert.ToDouble(pProps.NoDataValue.ToString());
//object nodatavalue = pProps.NoDataValue;
//Type type=pProps.NoDataValue.GetType();
//double dbNoDataValue = type.IsArray ? nodatavalue[0] as double : nodatavalue as double;
//初始步长
double dbInitialStep = 0;
int nGridW = nDemWidth / 10;
int nGridH = nDemHeight / 10;
int nCount = 0;
double dbHeightAvg = 0;
for (int i = 0; i < 10; i++)
{
for (int j = 0; j < 10; j++)
{
double dDemZ = double.NaN;
double dbGeoX = pRaster2.ToMapX(i * nGridW);
double dbGeoY = pRaster2.ToMapY(j * nGridH);
if (GetGeoZ(pSrcRaster, dbSubDemData, ptSubImgLeftTop, dbGeoX, dbGeoY, ref dDemZ) && Math.Abs(dDemZ - dbNoDataValue) >= 10e-10)
{
nCount++;
dbHeightAvg += dDemZ;
}
}
}
if (nCount != 0)
{
dbHeightAvg /= nCount;
}
else
{
return(false);
}
double dbCurCameraZ = 0;
//IRaster2 pRaster2 = pSrcRaster as IRaster2;
//int nCameraImgX = pRaster2.ToPixelColumn(exori.pos.X);//dXCumulate - pDem.m_PtOrigin.X) / dXRdem;
//int nCameraImgY = pRaster2.ToPixelRow(exori.pos.Y); // (dYCumulate - pDem.m_PtOrigin.Y) / dYRdem;
//if (nCameraImgY >= 0 || nCameraImgY < nDemHeight || nCameraImgX >= 0 || nCameraImgX < nDemWidth)
//{
if (GetGeoZ(pSrcRaster, dbSubDemData, ptSubImgLeftTop, exori.pos.X, exori.pos.Y, ref dbCurCameraZ) && Math.Abs(dbCurCameraZ - dbNoDataValue) >= 10e-10)
{
dbHeightAvg = dbCurCameraZ;
}
//}
dbInitialStep = Math.Abs(dbHeightAvg - exori.pos.Z) / 2;
Point2D ptLeftTop = new Point2D(0, 0);
double[] dbResolution = new double[2];
dbResolution[0] = pProps.MeanCellSize().X;
dbResolution[1] = pProps.MeanCellSize().Y;
int[] nSize = new int[2];
nSize[0] = nDemWidth;
nSize[1] = nDemHeight;
//pDstRaster = CreateRaster(ptLeftTop, dbResolution, nSize);
//pDstRaster = createRasterWithoutData(ptLeftTop, dbResolution[0], nSize, "testOutput.tif");
// byte[,] dbData = new byte[nDemWidth, nDemHeight];
//double demGrayVal=double.NaN;
//Pt3d demXYZ;
//byte byteGray;
//byte bt = (byte)255;
//Pt2d pt;
Matrix matA, matB;
matA = new Matrix(2, 2);
matB = new Matrix(2, 1);
Matrix matR;
matR = new Matrix(3, 3);
//Matrix matX;
double[] a = new double[4];
double[] b = new double[2];
OPK2RMat(exori.ori, ref matR); //求解相关系数
double a1 = matR.getNum(0, 0);
double a2 = matR.getNum(0, 1);
double a3 = matR.getNum(0, 2);
double b1 = matR.getNum(1, 0);
double b2 = matR.getNum(1, 1);
double b3 = matR.getNum(1, 2);
double c1 = matR.getNum(2, 0);
double c2 = matR.getNum(2, 1);
double c3 = matR.getNum(2, 2);
double[] dbCoef = new double[] { a1, a2, a3, b1, b2, b3, c1, c2, c3 };
//double X, Y, Z, Z1;
// Z = 0.0;
//double dthreshold = 0.01;
//初始化数组
//int[,] dbData = new int[nDemWidth, nDemHeight];
//for (int i = 0; i < nDemWidth; i++)
//{
// for (int j = 0; j < nDemHeight; j++)
// {
// dbData[i, j] = 0;
// }
//}
try
{
//生成RASTER
Point2D pt2dTopLeft = new Point2D();
pt2dTopLeft.X = pProps.Extent.UpperLeft.X;
pt2dTopLeft.Y = pProps.Extent.UpperLeft.Y;
pDstRaster = CreateRaster(pt2dTopLeft, dbResolution, nSize);
if (pDstRaster == null)
{
return(false);
}
//得到数组
IPnt pBlockSize = new DblPntClass();
pBlockSize.X = nDemWidth;
pBlockSize.Y = nDemHeight;
IPnt pntLeftTop = new DblPntClass();
pntLeftTop.SetCoords(ptLeftTop.X, ptLeftTop.Y);
IPixelBlock pPixelBlock = pDstRaster.CreatePixelBlock(pBlockSize);
IPixelBlock3 pPixelBlock3 = pPixelBlock as IPixelBlock3;
pDstRaster.Read(pntLeftTop, pPixelBlock);
System.Array pixels;
pixels = (System.Array)pPixelBlock3.get_PixelData(0);
//初始化
object oValue = getValidType(pDstRaster as IRasterProps, 0);
for (int i = 0; i < nDemHeight; i++)
{
for (int j = 0; j < nDemWidth; j++)
{
pixels.SetValue(oValue, j, i);
}
}
//逐像素判断是否可见
IRaster2 pSrcRaster2 = pSrcRaster as IRaster2;
oValue = getValidType(pDstRaster as IRasterProps, 255);
for (int i = 0; i < nImgHeight; i++)
{
for (int j = 0; j < nImgWidth; j++)
{
Point2D ptCurrent = null;
if (getPixelIsCoverd(pSrcRaster, dbSubDemData, ptSubImgLeftTop, j, i, out ptCurrent, exori, dbCoef, dbFocus, fx, fy, dbInitialStep))
{
int nCol = int.MaxValue, nRow = int.MaxValue;
pSrcRaster2.MapToPixel(ptCurrent.X, ptCurrent.Y, out nCol, out nRow);
if (nCol >= nDemWidth || nCol < 0 || nRow < 0 || nRow >= nDemHeight)
{
continue;
}
pixels.SetValue(oValue, nCol, nRow);
//pixels[nCol, nRow] = 255;
}
}
}
pPixelBlock3.set_PixelData(0, (System.Array)pixels);
//修改数据
IRasterEdit pRasterEdit = pDstRaster as IRasterEdit;
pRasterEdit.Write(pntLeftTop, pPixelBlock);
pRasterEdit.Refresh();
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
return(false);
}
return(true);
}
/// <summary>
/// Gets value of pixel at the specified position.
/// </summary>
/// <param name="pos"></param>
/// <param name="raster"></param>
/// <returns></returns>
public static double GetValue(Position pos, IRaster raster)
{
IPnt regionSize = new PntClass();
regionSize.SetCoords(1, 1);
IPixelBlock pixelBlock = raster.CreatePixelBlock(regionSize);
IPnt tl = new PntClass();
tl.SetCoords(pos.Column, pos.Row);
raster.Read(tl, pixelBlock);
return Convert.ToDouble(pixelBlock.GetVal(0, 0, 0));
}
public static IRasterDataset CreateRasterDataset(string filePath, string fileName, IRasterLayer rasterLayer,
StructRasterMetaData structRasterMetaData, int[,] data, int noDataValue)
{
try
{
IRasterWorkspace2 rasterWorkspace2 = OpenRasterWorkspace(filePath);
//Define the origin for the raster dataset, which is the lower left corner of the raster.
IPoint originPoint = new PointClass();
originPoint.PutCoords(structRasterMetaData.XMin, structRasterMetaData.YMin);
//Define the dimensions of the raster dataset.
int width = structRasterMetaData.RowCount; //This is the width of the raster dataset.
int height = structRasterMetaData.ColumnCount; //This is the height of the raster dataset.
IRaster r = rasterLayer.Raster;
IRasterDefaultProps rdp = r as IRasterDefaultProps;
double xCellSize = rdp.DefaultPixelWidth; //This is the cell size in x direction.
double yCellSize = rdp.DefaultPixelHeight; //This is the cell size in y direction.
ISpatialReference spatialReference = rdp.DefaultSpatialReference;
int bandCount = 1; // This is the number of bands the raster dataset contains.
//Create a raster dataset in TIFF format.
IRasterDataset rasterDataset = rasterWorkspace2.CreateRasterDataset(fileName, "IMAGINE Image",
originPoint, height, width, xCellSize, yCellSize, bandCount, rstPixelType.PT_UCHAR, spatialReference,
true);
//If you need to set NoData for some of the pixels, you need to set it on band
//to get the raster band.
IRasterBandCollection rasterBands = (IRasterBandCollection)rasterDataset;
IRasterBand rasterBand;
IRasterProps rasterProps;
rasterBand = rasterBands.Item(0);
rasterProps = (IRasterProps)rasterBand;
//Set NoData if necessary. For a multiband image, a NoData value needs to be set for each band.
rasterProps.NoDataValue = -9999f;
//Create a raster from the dataset.
IRaster raster = rasterDataset.CreateDefaultRaster();
//Create a pixel block using the weight and height of the raster dataset.
//If the raster dataset is large, a smaller pixel block should be used.
//Refer to the topic "How to access pixel data using a raster cursor".
IPnt blocksize = new PntClass();
blocksize.SetCoords(height, width);
IPixelBlock3 pixelblock = raster.CreatePixelBlock(blocksize) as IPixelBlock3;
object temp = pixelblock.get_PixelDataByRef(0);
System.Byte[,] pixelData = (System.Byte[, ])temp;
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
if (data[i, j] == -9999f)
{
pixelData[j, i] = (System.Byte)noDataValue;
//System.Diagnostics.Debug.WriteLine(i.ToString() + "+" + j.ToString());
}
else
{
if (pixelData[j, i] != Convert.ToByte(data[i, j]))
{
pixelData[j, i] = Convert.ToByte(data[i, j]);
}
//System.Diagnostics.Debug.WriteLine(i.ToString() + "-" + j.ToString());
}
}
}
pixelblock.set_PixelData(0, pixelData);
//Define the location that the upper left corner of the pixel block is to write.
IPnt upperLeft = new PntClass();
upperLeft.SetCoords(0, 0);
//Write the pixel block.
IRasterEdit rasterEdit = (IRasterEdit)raster;
rasterEdit.Write(upperLeft, (IPixelBlock)pixelblock);
//Release rasterEdit explicitly.
System.Runtime.InteropServices.Marshal.ReleaseComObject(rasterEdit);
return(rasterDataset);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
return(null);
}
}
private void middleRowColumn(IPnt loc, int[] startRows, int[] startColumns)
{
double x = loc.X;
double y = loc.Y;
string outLocStr = x.ToString() + ":" + y.ToString();
//string inLocStr = (x - 1).ToString() + ":" + (y - 1).ToString();
IPnt readLoc = new PntClass();
readLoc.SetCoords(x - 1, y - 1);
IRasterEdit regRsE = (IRasterEdit)OutRaster;
IPnt writePbSize = new PntClass();
writePbSize.SetCoords(pbwidth, pbheight);
IPnt readPbSize = new PntClass();
readPbSize.SetCoords(pbwidth + 2, pbheight + 2);
IPixelBlock pb = inRs.CreatePixelBlock(readPbSize);
IPixelBlock pb2 = OutRaster.CreatePixelBlock(writePbSize);
System.Array[] inOutArr;
System.Array inArr = null;
System.Array outArr = null;
if (outArrDic.TryGetValue(outLocStr, out inOutArr))
{
inArr = inOutArr[0];
outArr = inOutArr[1];
}
else
{
//Console.WriteLine(outLocStr);
OutRaster.Read(loc, pb2);
inRs.Read(readLoc, pb);
OutRaster.Read(loc, pb2);
inArr = (System.Array)pb.get_SafeArray(0);
outArr = (System.Array)pb2.get_SafeArray(0);
outArrDic[outLocStr] = new System.Array[] { inArr, outArr };
}
int height = pb2.Height;
int width = pb2.Width;
for (int si = 0; si < startRows.Length; si++)
{
int c = startColumns[si];
int r = startRows[si];
int ic = c + 1;
int ir = r + 1;
//Console.WriteLine(cr[0]);
int inVl = System.Convert.ToInt32(inArr.GetValue(ic, ir));
if ((inVl == noDataVl) || (inVl == (noDataVl - 1)))
{
Console.WriteLine("Invalue form 2 middle = " + inVl.ToString());
continue;
}
else
{
int outVl32 = System.Convert.ToInt32(outArr.GetValue(c, r));
if (outVl32 != noDataVl2)
{
}
else
{
List <string> cr = new List <string>();
cr.Add(c.ToString() + ":" + r.ToString());
outArr.SetValue(counter, c, r);
List <int>[] nextArray = { new List <int>(), new List <int>(), new List <int>(), new List <int>() };//determines if the next pixel block must be queried {left,top,right,bottom}
while (cr.Count > 0)
{
rCnt++;
rPerm += findRegion(inVl, counter, noDataVl2, inArr, outArr, cr, nextArray);
}
for (int i = 0; i < nextArray.Length; i++)
{
List <int> pbNextLst = nextArray[i];
if (pbNextLst.Count > 0)
{
int[] startClms = new int[pbNextLst.Count];
int[] startRws = new int[pbNextLst.Count];
IPnt newLoc = new PntClass();
double nClP = loc.X;
double nRwP = loc.Y;
switch (i)
{
case 0:
nClP = nClP - pbwidth;
startRws = pbNextLst.ToArray();
int stcl = pbwidth - 1;
for (int k = 0; k < startRws.Length; k++)
{
startClms[k] = stcl;
}
break;
case 1:
nRwP = nRwP - pbheight;
startClms = pbNextLst.ToArray(); //rws=pbHeight-1
int strw = pbheight - 1;
for (int k = 0; k < startClms.Length; k++)
{
startRws[k] = strw;
}
break;
case 2:
nClP = nClP + pbwidth;
startRws = pbNextLst.ToArray(); //clms=0;
break;
default:
nRwP = nRwP + pbheight;
startClms = pbNextLst.ToArray(); //rws = 0;
break;
}
if ((nClP >= 0 && nRwP >= 0 & nClP <= rsProps2.Width && nRwP <= rsProps2.Height))
{
newLoc.SetCoords(nClP, nRwP);
middleRowColumn(newLoc, startRws, startClms);
}
}
}
}
}
}
return;
}
/// <summary>
/// Write edits to the input raster.
/// </summary>
/// <param name="raster">Raster of raster layer to be edited.</param>
/// <param name="edits">Pixel collection that contains edited pixels.</param>
private static void WriteEdits(IRaster raster, PixelCollection edits)
{
IRasterProps rasterProps = (IRasterProps)raster;
int minRow = rasterProps.Height - 1;
int maxRow = 0;
int minCol = rasterProps.Width - 1;
int maxCol = 0;
for (int i = 0; i < edits.Count; i++)
{
#region Get the extent of the edition region
Position cellPos = edits[i].Position;
if (cellPos.Row > maxRow)
{
maxRow = cellPos.Row;
}
if (cellPos.Row < minRow)
{
minRow = cellPos.Row;
}
if (cellPos.Column > maxCol)
{
maxCol = cellPos.Column;
}
if (cellPos.Column < minCol)
{
minCol = cellPos.Column;
}
#endregion
}
IPnt pos = new PntClass();
pos.SetCoords(maxCol - minCol + 1, maxRow - minRow + 1);
IPixelBlock pixelBlock = raster.CreatePixelBlock(pos);
pos.SetCoords(minCol, minRow);
raster.Read(pos, pixelBlock);
// Set new values
IPixelBlock3 pixelBlock3 = (IPixelBlock3)pixelBlock;
Array pixels = (Array)pixelBlock3.get_PixelData(0);
for (int i = 0; i < edits.Count; i++)
{
object value = null;
Raster.CSharpValue2PixelValue(edits[i].NewValue, rasterProps.PixelType, out value);
pixels.SetValue(value,
edits[i].Position.Column - minCol,
edits[i].Position.Row - minRow);
}
pixelBlock3.set_PixelData(0, (System.Object)pixels);
IRasterEdit rasterEdit = (IRasterEdit)raster;
rasterEdit.Write(pos, (IPixelBlock)pixelBlock3);
}
/// <summary>
/// Get the pixel values in a region of the input raster.
/// </summary>
/// <param name="tlCorner"></param>
/// <param name="brCorner"></param>
/// <param name="raster"></param>
/// <returns></returns>
public static double[,] GetValues(Position tlCorner, Position brCorner, IRaster raster)
{
int colCount = brCorner.Column - tlCorner.Column + 1;
int rowCount = brCorner.Row - tlCorner.Row + 1;
IPnt regionSize = new PntClass();
regionSize.SetCoords(colCount, rowCount);
IPixelBlock pixelBlock = raster.CreatePixelBlock(regionSize);
IPnt tl = new PntClass();
tl.SetCoords(tlCorner.Column, tlCorner.Row);
raster.Read(tl, pixelBlock);
double[,] values = new double[colCount, rowCount];
for (int x = 0; x < colCount; x++)
{
for (int y = 0; y < rowCount; y++)
{
values[x, y] = Convert.ToDouble(pixelBlock.GetVal(0, x, y));
}
}
return values;
}
// From ArcObjects Help: How to Create a Raster dataset
// http://resources.arcgis.com/en/help/arcobjects-net/conceptualhelp/index.html#/How_to_create_a_raster_dataset/000100000464000000/
public static IRasterDataset CreateRasterDataset(string Path, string FileName)
{
try
{
IRasterWorkspace2 rasterWs = OpenRasterWorkspace(Path); // This is a custom method that's at the bottom of this code.
//Define the spatial reference of the raster dataset.
ISpatialReference sr = new UnknownCoordinateSystemClass();
//Define the origin for the raster dataset, which is the lower left corner of the raster.
IPoint origin = new PointClass();
origin.PutCoords(15.0, 15.0);
//Define the dimensions of the raster dataset.
int width = 100; //This is the width of the raster dataset.
int height = 100; //This is the height of the raster dataset.
double xCell = 30; //This is the cell size in x direction.
double yCell = 30; //This is the cell size in y direction.
int NumBand = 1; // This is the number of bands the raster dataset contains.
//Create a raster dataset in TIFF format.
IRasterDataset rasterDataset = rasterWs.CreateRasterDataset(FileName, "TIFF",
origin, width, height, xCell, yCell, NumBand, rstPixelType.PT_UCHAR, sr,
true);
//If you need to set NoData for some of the pixels, you need to set it on band
//to get the raster band.
IRasterBandCollection rasterBands = (IRasterBandCollection)rasterDataset;
IRasterBand rasterBand;
IRasterProps rasterProps;
rasterBand = rasterBands.Item(0);
rasterProps = (IRasterProps)rasterBand;
//Set NoData if necessary. For a multiband image, a NoData value needs to be set for each band.
rasterProps.NoDataValue = 255;
//Create a raster from the dataset.
IRaster raster = ((IRasterDataset2)rasterDataset).CreateFullRaster();
//Create a pixel block using the weight and height of the raster dataset.
//If the raster dataset is large, a smaller pixel block should be used.
//Refer to the topic "How to access pixel data using a raster cursor".
IPnt blocksize = new PntClass();
blocksize.SetCoords(width, height);
IPixelBlock3 pixelblock = raster.CreatePixelBlock(blocksize) as IPixelBlock3;
//Populate some pixel values to the pixel block.
System.Array pixels;
pixels = (System.Array)pixelblock.get_PixelData(0);
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
if (i == j)
{
pixels.SetValue(Convert.ToByte(255), i, j);
}
else
{
pixels.SetValue(Convert.ToByte((i * j) / 255), i, j);
}
}
}
pixelblock.set_PixelData(0, (System.Array)pixels);
//Define the location that the upper left corner of the pixel block is to write.
IPnt upperLeft = new PntClass();
upperLeft.SetCoords(0, 0);
//Write the pixel block.
IRasterEdit rasterEdit = (IRasterEdit)raster;
rasterEdit.Write(upperLeft, (IPixelBlock)pixelblock);
//Release rasterEdit explicitly.
System.Runtime.InteropServices.Marshal.ReleaseComObject(rasterEdit);
return(rasterDataset);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
return(null);
}
}
static void Main(string[] args)
{
//ESRI License Initializer generated code.
m_AOLicenseInitializer.InitializeApplication(new esriLicenseProductCode[] { esriLicenseProductCode.esriLicenseProductCodeAdvanced }, new esriLicenseExtensionCode[] { esriLicenseExtensionCode.esriLicenseExtensionCode3DAnalyst });//{esriLicenseExtensionCode.esriLicenseExtensionCode3DAnalyst});
System.DateTime dt = System.DateTime.Now;
System.DateTime dt2;
TimeSpan ts;
rasterUtil rsUtil = new rasterUtil();
geoDatabaseUtility geoUtil = new geoDatabaseUtility();
string pred = @"C:\Users\jshogland\Documents\John\projects\FtStewart\models\TreeEstimates\HdwPresentPred.bch";
string mdl = @"C:\Users\jshogland\Documents\John\projects\FtStewart\models\TreeEstimates\HdwPresent.mdl";
double[] minArr, maxArr;
Console.WriteLine("Getting Min Max");
batchCalculations.getMinMaxArr(mdl, out minArr, out maxArr);
Console.WriteLine("First Min Max: " + minArr[0].ToString() + ";" + maxArr[0].ToString());
IFunctionRasterDataset fdset = rsUtil.extactModelDomainFunction(pred, minArr, maxArr);
Console.WriteLine(fdset.RasterInfo.PixelType.ToString());
IRaster rs = rsUtil.createRaster(fdset);
IPnt pntSize = new PntClass();
pntSize.SetCoords(100, 100);
IPixelBlock pb = rs.CreatePixelBlock(pntSize);
rs.Read(pntSize, pb);
int cnt = 0;
for (int r = 0; r < pb.Height; r++)
{
for (int c = 0; c < pb.Width; c++)
{
object vl = pb.GetVal(0, c, r);
if (vl != null)
{
if (System.Convert.ToInt32(vl) == 0)
{
cnt++;
}
}
}
}
Console.WriteLine("Total zeros = " + cnt.ToString());
//string dir = @"C:\Users\jshogland\Documents\John\projects\UMGradSchool\Classes\Mining Big Data\Assignments\NatureServe\train\ALB";
//string[] fls = System.IO.Directory.GetFiles(dir, "*.jpg");
//foreach (string flPath in fls)
//{
// string nm = System.IO.Path.GetFileNameWithoutExtension(flPath);
// Console.WriteLine(nm);
// Bitmap bm = new Bitmap(flPath);
// Accord.Imaging.Moments.CentralMoments cm = new Accord.Imaging.Moments.CentralMoments(bm, 3);
// //Console.WriteLine(cm.Mu00.ToString());
// Console.WriteLine("\t"+cm.Mu01.ToString());
// Console.WriteLine("\t" + cm.Mu02.ToString());
// Console.WriteLine("\t" + cm.Mu03.ToString());
// Console.WriteLine("\t" + cm.Mu10.ToString());
// Console.WriteLine("\t" + cm.Mu20.ToString());
// Console.WriteLine("\t" + cm.Mu30.ToString());
//}
//string plots = @"C:\Users\jshogland\Documents\John\projects\UMGradSchool\Project\papers\Co-registration\Data\coReg.gdb\SampleLocations";
//string ls= @"C:\Users\jshogland\Documents\John\projects\UMGradSchool\Project\papers\Co-registration\Data\FloridaLandsat.tif";
//string naip= @"C:\Users\jshogland\Documents\John\projects\UMGradSchool\Project\papers\Co-registration\Data\GeorgiaNaipAgAl.tif";
//rasterUtil rsUtil = new rasterUtil();
//HashSet<string> uStr = new HashSet<string>();
//int[] filesLines = getClasses(prjDir,ref uStr);
//Console.WriteLine("Files = " + filesLines[0].ToString());
//Console.WriteLine("Lines = " + filesLines[1].ToString());
//Console.WriteLine(uStr.Count().ToString());
//geoDatabaseUtility geoUtil = new geoDatabaseUtility();
//rasterUtil rsUtil = new rasterUtil();
//featureUtil ftrUtil = new featureUtil(rsUtil);
////string origPath = @"C:\Users\jshogland\Documents\John\projects\SpatialAdjust\Shift.gdb\OriginalSample";
////string nwPath = @"C:\Users\jshogland\Documents\John\projects\SpatialAdjust\Shift.gdb\RandomtShiftSample";
////CreateNewPoints(origPath, nwPath, rsUtil, ftrUtil, geoUtil, true);
//string fiaTestPath = @"C:\Users\jshogland\Documents\John\projects\SpatialAdjust\Shift.gdb\RandomtShiftSample";
//string fiaOutPath = @"C:\Users\jshogland\Documents\John\projects\SpatialAdjust\Shift.gdb\adjustSample";
//string rsPath = @"C:\Users\jshogland\Documents\John\projects\SpatialAdjust\models\predictorsOneVariable.bch";
//IFunctionRasterDataset fDset = rsUtil.createIdentityRaster(rsPath);
//IFeatureClass ftrCls = geoUtil.getFeatureClass(fiaTestPath);
//int error = 15;
//adjustCoregistrationErrors aE = new adjustCoregistrationErrors(rsUtil);
//aE.FunctionRasterDataset = fDset;
//aE.DependentField = "Pred15";
//aE.GeometricErrorCells = error;
//aE.OutFtrClassPath = fiaOutPath;
//aE.PlotFeatureClass = ftrCls;
//aE.adjustErrors();
dt2 = System.DateTime.Now;
ts = dt2.Subtract(dt);
Console.WriteLine("Total Seconds = " + ts.TotalSeconds.ToString());
m_AOLicenseInitializer.ShutdownApplication();
}
//分析的主要实现函数
private IRasterLayer Analyze(IRasterLayer pRasterLayer)
{
IRaster pRaster = pRasterLayer.Raster;
IRasterProps rasterProps = (IRasterProps)pRaster;
//设置栅格数据起始点
IPnt pBlockSize = new Pnt();
pBlockSize.SetCoords(rasterProps.Width, rasterProps.Height);
//选取整个范围
IPixelBlock pPixelBlock = pRaster.CreatePixelBlock(pBlockSize);
//左上点坐标
IPnt tlp = new Pnt();
tlp.SetCoords(0, 0);
//读入栅格
IRasterBandCollection pRasterBands = pRaster as IRasterBandCollection;
IRasterBand pRasterBand = pRasterBands.Item(0);
IRawPixels pRawRixels = pRasterBands.Item(0) as IRawPixels;
pRawRixels.Read(tlp, pPixelBlock);
//将PixBlock的值组成数组
Array pSafeArray = pPixelBlock.get_SafeArray(0) as Array;
//Array转数组
double[,] myDoubleArr = new double[pSafeArray.GetLength(0), pSafeArray.GetLength(1)];
for (int i = 0; i < myDoubleArr.GetLength(0); i++)
{
for (int j = 0; j < myDoubleArr.GetLength(1); j++)
{
myDoubleArr[i, j] = Convert.ToDouble(pSafeArray.GetValue(i, j));
}
}
for (int i = 0; i < myDoubleArr.GetLength(0); i++)
{
for (int j = 0; j < myDoubleArr.GetLength(1); j++)
{
if (myDoubleArr[i, j] == 255)
{
myDoubleArr[i, j] = 0;
}
}
}
double[,] ZeroArray = GetArray(myDoubleArr, Convert.ToInt32(textBox4.Text));
double[,] OArray = SumArray(ZeroArray, Convert.ToInt32(textBox4.Text));
double[,] LastArray = ReturnLastArray(OArray, Convert.ToInt32(textBox4.Text));
pPixelBlock.set_SafeArray(0, LastArray);
//StreamWriter sw = File.AppendText(@"E:\GIS底层实验\WorkSpace\result\arrry.txt");
//for (int y = 0; y < rasterProps.Height; y++)
//{
// for (int x = 0; x < rasterProps.Width; x++)
// {
// //int value = Convert.ToInt32(pSafeArray.GetValue(x, y));
// Byte value = Convert.ToByte(pSafeArray.GetValue(x, y));
// string TxtCon = ("X:" + Convert.ToString(x) + "," + "Y:" + Convert.ToString(y) + "," + "Value" + pSafeArray.GetValue(x, y) + "\n");
// sw.Write(TxtCon);
// }
//}
//sw.Flush();
//sw.Close();
// 编辑raster，将更新的值写入raster中
IRasterEdit rasterEdit = pRaster as IRasterEdit;
rasterEdit.Write(tlp, pPixelBlock);
rasterEdit.Refresh();
return(pRasterLayer);
}
/// <summary>
/// Write edits to the input raster.
/// </summary>
/// <param name="raster"></param>
private static void WriteEdits(IRaster raster)
{
IRasterProps rasterProps = (IRasterProps)raster;
int minRow = rasterProps.Height - 1;
int maxRow = 0;
int minCol = rasterProps.Width - 1;
int maxCol = 0;
for (int i = 0; i < Editor.Edits.Count; i++)
{
#region Get the extent of the edition region
Position cellPos = Editor.Edits[i].Position;
if (cellPos.Row > maxRow)
{
maxRow = cellPos.Row;
}
if (cellPos.Row < minRow)
{
minRow = cellPos.Row;
}
if (cellPos.Column > maxCol)
{
maxCol = cellPos.Column;
}
if (cellPos.Column < minCol)
{
minCol = cellPos.Column;
}
#endregion
}
IPnt pos = new PntClass();
pos.SetCoords(maxCol - minCol + 1, maxRow - minRow + 1);
IPixelBlock pixelBlock = raster.CreatePixelBlock(pos);
pos.SetCoords(minCol, minRow);
raster.Read(pos, pixelBlock);
// Set new values
IPixelBlock3 pixelBlock3 = (IPixelBlock3)pixelBlock;
Array pixels = (Array)pixelBlock3.get_PixelData(0);
for (int i = 0; i < Editor.Edits.Count; i++)
{
object value = null;
Editor.CSharpValue2PixelValue(Editor.Edits[i].NewValue, rasterProps.PixelType, out value);
pixels.SetValue(value,
Editor.Edits[i].Position.Column - minCol,
Editor.Edits[i].Position.Row - minRow);
}
pixelBlock3.set_PixelData(0, (System.Object)pixels);
IRasterEdit rasterEdit = (IRasterEdit)raster;
rasterEdit.Write(pos, (IPixelBlock)pixelBlock3);
}
public void ConvertGridMetricsToRaster(string metricsDir, string outDir, int[] metrics)
{
string[] metricFiles = System.IO.Directory.GetFiles(metricsDir, "*.csv");
string[] headerFiles = System.IO.Directory.GetFiles(metricsDir, "*.txt");
IPnt cellSize;
IPnt[] tlPntArr;
int[] rwArr;
int[] clmArr;
float noDataVl;
IEnvelope ext = getExtentsFromHeader(headerFiles, out cellSize, out tlPntArr, out rwArr, out clmArr, out noDataVl);
IWorkspace outWks = geoUtil.OpenRasterWorkspace(outDir);
string exePath = "\"" + fusDir + "\\" + csv2Grid + "\"";
IRasterEdit[] rsArr = new IRasterEdit[metrics.Length];
for (int i = 0; i < metrics.Length; i++)
{
int clm = metrics[i];
string metricName = MetricsArr[clm];
IRasterDataset rsDset = rsUtil.createNewRaster(ext, cellSize, outWks, metricName, 1, rstPixelType.PT_FLOAT, rasterUtil.rasterType.IMAGINE, null);//rsWk2.CreateRasterDataset(metricName+".img","IMAGINE Image",ext.LowerLeft,w,h,cellSize.X,cellSize.Y,1,rstPixelType.PT_FLOAT,null,true);
IRasterBand rsB = ((IRasterBandCollection)rsDset).Item(0);
IRasterProps rsP = (IRasterProps)rsB;
rsP.NoDataValue = noDataVl;
IRaster rs = ((IRasterDataset2)rsDset).CreateFullRaster();
rsArr[i] = (IRasterEdit)rs;
}
foreach (string s in metricFiles)
{
Console.WriteLine("Working on " + s);
int pntIndex = System.Array.IndexOf(metricFiles, s);
IPnt tl = tlPntArr[pntIndex];
int cl, rw;
((IRaster2)rsArr[0]).MapToPixel(tl.X, tl.Y, out cl, out rw);
IPnt tlp = new PntClass();
tlp.X = cl;
tlp.Y = rw;
int rws = rwArr[pntIndex];
int clms = clmArr[pntIndex];
IPnt bSize = new PntClass();
bSize.SetCoords(clms, rws);
System.Array[] pbSafeArr = new System.Array[metrics.Length];
IPixelBlock3[] pbArr = new IPixelBlock3[metrics.Length];
for (int i = 0; i < metrics.Length; i++)
{
IRasterEdit rsE = rsArr[i];
IRaster rs = (IRaster)rsE;
IPixelBlock3 pb = (IPixelBlock3)rs.CreatePixelBlock(bSize);
rs.Read(tlp, (IPixelBlock)pb);
//pb.Mask(0);
pbArr[i] = pb;
System.Array vlArr = (System.Array)pb.get_PixelData(0);
pbSafeArr[i] = vlArr;
}
using (System.IO.StreamReader sr = new System.IO.StreamReader(s))
{
string hdr = sr.ReadLine();
while (!sr.EndOfStream)
{
string ln = sr.ReadLine();
string[] lnArr = ln.Split(new char[] { ',' });
int r = (rws - 1) - System.Convert.ToInt32(lnArr[0]);
int c = System.Convert.ToInt32(lnArr[1]);
for (int i = 0; i < metrics.Length; i++)
{
int clIndex = metrics[i];
float clVl = System.Convert.ToSingle(lnArr[clIndex]);
if (clVl != noDataVl)
{
pbSafeArr[i].SetValue(clVl, c, r);
}
}
}
sr.Close();
}
for (int i = 0; i < metrics.Length; i++)
{
IPixelBlock3 pb = pbArr[i];
pb.set_PixelData(0, pbSafeArr[i]);
rsArr[i].Write(tlp, (IPixelBlock)pb);
}
}
for (int i = 0; i < rsArr.Length; i++)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(rsArr[i]);
}
}