/// <summary>
/// 创建Tin文件
/// </summary>
/// <param name="pFeatureClass">要素类</param>
private void CreateTinFromFeature(IFeatureClass pFeatureClass)
{
try
{
IGeoDataset pGeoDataset = pFeatureClass as IGeoDataset;
ESRI.ArcGIS.Geometry.IEnvelope pExtent = pGeoDataset.Extent;
pExtent.SpatialReference = pGeoDataset.SpatialReference;
//获得高程值
IFields pFields = pFeatureClass.Fields;
IField pHeightField;
pHeightField = pFields.get_Field(3);
ITinEdit pTinEdit = new TinClass();
pTinEdit.InitNew(pExtent);
object Missing = Type.Missing;
object pbUseShapeZ = Missing;
object pOverWrite = Missing;
pTinEdit.AddFromFeatureClass(pFeatureClass, null, pHeightField, null, esriTinSurfaceType.esriTinMassPoint, ref pbUseShapeZ);
pTinEdit.SaveAs(Application.StartupPath + "\\Convert\\TemTIN\\" + this.Random, ref pOverWrite);
pTinEdit.StopEditing(false);
CreateContourData(Application.StartupPath + "\\Convert\\TemTIN");
}
catch (Exception)
{
}
}
/// <summary>
/// 根据生成的featureclass动态生成tin
/// </summary>
/// <params name="pFeatureClass"></params>
/// <params name="pField"></params>
/// <params name="pPath"></params>
/// <returns></returns>
private ITin CreateTin(IFeatureClass pFeatureClass, IField pField, string pPath)
{
IGeoDataset pGeoDataset = pFeatureClass as IGeoDataset;
ITinEdit pTinEdit = new TinClass();
pTinEdit.InitNew(pGeoDataset.Extent);
object pObj = Type.Missing;
pTinEdit.AddFromFeatureClass(pFeatureClass, null, pField, null, esriTinSurfaceType.esriTinMassPoint, ref pObj);
pTinEdit.SaveAs(pPath, ref pObj);
pTinEdit.Refresh();
return(pTinEdit as ITin);
}
/// <summary>
/// 高程点生成TIN
/// </summary>
/// <param name="featureClass">点要素</param>
/// <param name="path">保存路径</param>
/// <returns>TIN数据</returns>
public static ITin CreateTIN(IFeatureClass featureClass, string path)
{
string folder = System.IO.Path.GetDirectoryName(path);
IGeoDataset geoDataset = featureClass as IGeoDataset;
IField zField = featureClass.Fields.get_Field(4);//高程字段
ITinEdit tinEdit = new TinClass();
tinEdit.InitNew(geoDataset.Extent);
tinEdit.AddFromFeatureClass(featureClass, null, zField, null, esriTinSurfaceType.esriTinMassPoint);
if (System.IO.Directory.Exists(folder + "\\tin"))
{
(new System.IO.DirectoryInfo(folder + "\\tin")).Delete(true);
}
tinEdit.SaveAs(folder + "\\tin");
tinEdit.Refresh();
tinEdit.StopEditing(true);
return(tinEdit as ITin);
}
protected override void OnClick()
{
try
{
string shpFilePath = string.Format(@"C:\temp\contour datas");
string shpFileName = "contour2.shp"; // height data
IWorkspaceFactory workspaceFactory = new ESRI.ArcGIS.DataSourcesFile.ShapefileWorkspaceFactoryClass();
IWorkspace workspace = workspaceFactory.OpenFromFile(shpFilePath, 0);
IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)workspace;
IFeatureClass pFeatureClass = featureWorkspace.OpenFeatureClass(shpFileName);
IFeatureLayer pFeatureLayer = new FeatureLayerClass();
pFeatureLayer.FeatureClass = pFeatureClass;
IQueryFilter pQueryFilter = new QueryFilterClass();
pQueryFilter.WhereClause = "";
IEnvelope pEnv = pFeatureLayer.AreaOfInterest;
IGeoDataset pGDS = (IGeoDataset)pFeatureLayer.FeatureClass;
ISpatialReference pSR = pGDS.SpatialReference;
IGeometry pGeom = pEnv;
pGeom.Project(pSR);
ITinEdit pTinEdit = new TinClass();
pTinEdit.InitNew(pEnv);
IFields pFields = pFeatureClass.Fields;
IField pFiled = pFields.get_Field(pFields.FindField("HSL"));
object Missing = Type.Missing;
esriTinSurfaceType pTinSurface = esriTinSurfaceType.esriTinHardLine;
pTinEdit.AddFromFeatureClass(pFeatureClass, pQueryFilter, pFiled, pFiled, pTinSurface, ref Missing);
string outputFolderPath = @"C:\temp\Output\";
string tinFolderName = "tin_data";
pTinEdit.SaveAs(outputFolderPath + tinFolderName, ref Missing);
MessageBox.Show("end");
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
}
ArcMap.Application.CurrentTool = null;
}
protected override void OnClick()
{
try
{
string shpFilePath = string.Format(@"C:\temp\contour datas");
string shpFileName = "contour2.shp"; // height data
IWorkspaceFactory workspaceFactory = new ESRI.ArcGIS.DataSourcesFile.ShapefileWorkspaceFactoryClass();
IWorkspace workspace = workspaceFactory.OpenFromFile(shpFilePath, 0);
IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)workspace;
IFeatureClass pFeatureClass = featureWorkspace.OpenFeatureClass(shpFileName);
IFeatureLayer pFeatureLayer = new FeatureLayerClass();
pFeatureLayer.FeatureClass = pFeatureClass;
IQueryFilter pQueryFilter = new QueryFilterClass();
pQueryFilter.WhereClause = "";
IEnvelope pEnv = pFeatureLayer.AreaOfInterest;
IGeoDataset pGDS = (IGeoDataset)pFeatureLayer.FeatureClass;
ISpatialReference pSR = pGDS.SpatialReference;
IGeometry pGeom = pEnv;
pGeom.Project(pSR);
ITinEdit pTinEdit = new TinClass();
pTinEdit.InitNew(pEnv);
IFields pFields = pFeatureClass.Fields;
IField pFiled = pFields.get_Field(pFields.FindField("HSL"));
object Missing = Type.Missing;
esriTinSurfaceType pTinSurface = esriTinSurfaceType.esriTinHardLine;
pTinEdit.AddFromFeatureClass(pFeatureClass, pQueryFilter, pFiled, pFiled, pTinSurface, ref Missing);
string outputFolderPath = @"C:\temp\Output\";
string tinFolderName = "tin_data";
pTinEdit.SaveAs(outputFolderPath + tinFolderName, ref Missing);
MessageBox.Show("end");
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
}
ArcMap.Application.CurrentTool = null;
}
/// <summary>
/// 创建Tin文件
/// </summary>
/// <param name="pFeatureClass">要素类</param>
private void CreateTinFromFeature(IFeatureClass pFeatureClass)
{
try
{
IGeoDataset pGeoDataset = pFeatureClass as IGeoDataset;
ESRI.ArcGIS.Geometry.IEnvelope pExtent = pGeoDataset.Extent;
pExtent.SpatialReference = pGeoDataset.SpatialReference;
//获得高程值
IFields pFields = pFeatureClass.Fields;
IField pHeightField;
pHeightField = pFields.get_Field(3);
ITinEdit pTinEdit = new TinClass();
pTinEdit.InitNew(pExtent);
object Missing = Type.Missing;
object pbUseShapeZ = Missing;
object pOverWrite = Missing;
pTinEdit.AddFromFeatureClass(pFeatureClass, null, pHeightField, null, esriTinSurfaceType.esriTinMassPoint, ref pbUseShapeZ);
pTinEdit.SaveAs(Application.StartupPath + "\\Convert\\TemTIN\\" + this.Random, ref pOverWrite);
pTinEdit.StopEditing(false);
CreateContourData(Application.StartupPath + "\\Convert\\TemTIN");
}
catch (Exception)
{
}
}
private List <CPoint> LookingForNeighboursDT(IFeatureLayer pFeatureLayer, double dblThreshold, int intPtNumLast,
ref long lngTimeForSearching, ref long lngTimeForDT, ref long lngMemory, ref long lngMemoryDT,
ref long lngMemoryDTProcess, ref int intOutPut, string strTINPath)
{
lngMemory = GC.GetTotalMemory(true);
//lngMemoryDT = GC.GetTotalMemory(true);
//lngMemoryDTProcess = Process.GetProcessesByName("ContinuousGeneralizer.vshost")[0].WorkingSet64;
long lngStartTime = System.Environment.TickCount; //record the start time
//lngMemoryDT = Process.GetProcessesByName("ContinuousGeneralizer.vshost")[0].WorkingSet64;
//Process .GetProcessesByName("ContinuousGeneralizer.vshost")[0].
//create TIN
IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass;
IGeoDataset pGDS = (IGeoDataset)pFeatureClass;
IEnvelope pEnv = (IEnvelope)pGDS.Extent;
pEnv.SpatialReference = pGDS.SpatialReference;
IFields pFields = pFeatureClass.Fields;
IField pHeightFiled = new FieldClass();
try
{
pHeightFiled = pFields.get_Field(pFields.FindField("Id"));
}
catch (Exception)
{
pHeightFiled = pFields.get_Field(pFields.FindField("ID"));
throw;
}
//ITinWorkspace
ITinEdit pTinEdit = new TinClass();
pTinEdit.InitNew(pEnv);
object Missing = Type.Missing;
pTinEdit.AddFromFeatureClass(pFeatureClass, null, pHeightFiled, null, esriTinSurfaceType.esriTinHardLine, ref Missing);
lngTimeForDT = System.Environment.TickCount - lngStartTime; //Time for constructing DT
//long lngMemoryafterTinEdit = GC.GetTotalMemory(false) - lngMemoryDT;
//GC.Collect();
//lngMemoryDT = GC.GetTotalMemory(true) - lngMemoryDT;
//lngMemoryDTProcess = Process.GetProcessesByName("ContinuousGeneralizer.vshost")[0].WorkingSet64 - lngMemoryDTProcess;
//C5.LinkedList<int> intLLt = new C5.LinkedList<int>();
ITinNodeCollection pTinNodeCollection = (ITinNodeCollection)pTinEdit;
List <CPoint> CptLt = new List <CPoint>(pTinNodeCollection.NodeCount);
for (int i = 1; i <= pTinNodeCollection.NodeCount; i++) //i=1-4: super node
{
ITinNode pNode = pTinNodeCollection.GetNode(i);
CPoint cpt = new CPoint(pNode);
//cpt.intTS = new C5.TreeSet<int>();
CptLt.Add(cpt);
}
//long lngMemoryafterfetching = GC.GetTotalMemory(true);
//lngMemoryDT = GC.GetTotalMemory(true) - lngMemoryDT;
//Looking for neighbours based on Breadth First Search
if (intPtNumLast != -1)
{
dblThreshold = dblThreshold * Math.Pow(Convert.ToDouble(intPtNumLast) / Convert.ToDouble(CptLt.Count - 4), 0.5); //---------------dblThreshold------------------------------------------------//
//Math.Pow(1.8 / Convert.ToDouble(CptLt.Count - 4), 0.5);//---------------dblThreshold------------------------------------------------//
}
//double dblThresholdDT = (1 + Math.Sqrt(2)) / 2 * dblThreshold;
lngTimeForSearching = System.Environment.TickCount; //the start time
SCG.LinkedList <int> intTargetLLt = new SCG.LinkedList <int>();
SCG.LinkedList <int> intAllLLt = new SCG.LinkedList <int>();
for (int i = 0; i < CptLt.Count; i++)
{
CptLt[i].isTraversed = true;
intTargetLLt = new SCG.LinkedList <int>();
intTargetLLt.AddLast(CptLt[i].pTinNode.Index);
intAllLLt = new SCG.LinkedList <int>();
intAllLLt.AddLast(CptLt[i].pTinNode.Index);
while (intTargetLLt.Count > 0)
{
intTargetLLt = BSF(CptLt[i], ref CptLt, ref intTargetLLt, ref intAllLLt, dblThreshold, ref intOutPut);
}
intOutPut--; //the point will take itself as a close point, so we have to minus 1
//CptLt[i].intTS.Remove(CptLt[i].pTinNode.Index);
RestoreIsTraversed(ref CptLt, ref intAllLLt);
//intAllLLt.Dispose();
}
//long lngMemoryaftersearch = GC.GetTotalMemory(true);
lngTimeForSearching = System.Environment.TickCount - lngTimeForSearching; //the result time
lngMemory = GC.GetTotalMemory(true) - lngMemory;
pTinEdit.SaveAs(strTINPath + "\\" + pFeatureLayer.Name, true);
long lngFileSize = CHelpFunc.GetDirectoryLength(strTINPath + "\\" + pFeatureLayer.Name);
lngMemory += lngFileSize;
lngMemoryDT = lngFileSize;
return(CptLt);
}
public void DEMToTIN(IRaster iRaster, string tinFileName)
{
try
{
//***************生成TIN模型*********************************************
IGeoDataset pGeoData = iRaster as IGeoDataset;
IEnvelope pExtent = pGeoData.Extent;
IRasterBandCollection pRasBC = iRaster as IRasterBandCollection;
IRasterBand pRasBand = pRasBC.Item(0);
IRawPixels pRawPixels = pRasBand as IRawPixels;
IRasterProps pProps = pRawPixels as IRasterProps;
int iWid = pProps.Width;
int iHei = pProps.Height;
double w = iWid / 1000.0f;
double h = iHei / 1000.0f;
IPnt pBlockSize = new DblPntClass();
bool IterationFlag;
if (w < 1 && h < 1) //横纵都小于1000个像素
{
pBlockSize.X = iWid;
pBlockSize.Y = iHei;
IterationFlag = false;
}
else
{
pBlockSize.X = 1001.0f;
pBlockSize.Y = 1001.0f;
IterationFlag = true;
}
double cellsize = 0.0f; //栅格大小
IPnt pPnt1 = pProps.MeanCellSize(); //栅格平均大小
cellsize = pPnt1.X;
ITinEdit pTinEdit = new TinClass() as ITinEdit;
pTinEdit.InitNew(pExtent);
ISpatialReference pSpatial = pGeoData.SpatialReference;
pExtent.SpatialReference = pSpatial;
IPnt pOrigin = new DblPntClass();
IPnt pPixelBlockOrigin = new DblPntClass();
//栅格左上角像素中心坐标
double bX = pBlockSize.X;
double bY = pBlockSize.Y;
pBlockSize.SetCoords(bX, bY);
IPixelBlock pPixelBlock = pRawPixels.CreatePixelBlock(pBlockSize);
object nodata = pProps.NoDataValue; //无值标记
ITinAdvanced2 pTinNodeCount = pTinEdit as ITinAdvanced2;
int nodeCount = pTinNodeCount.NodeCount;
object vtMissing = Type.Missing;
object vPixels = null; //格子
double m_zTolerance = 0;
if (!IterationFlag) //当为一个处理单元格子时;(w < 1 && h < 1) //横纵都小于1000个像素
{
pPixelBlockOrigin.SetCoords(0.0f, 0.0f);
pRawPixels.Read(pPixelBlockOrigin, pPixelBlock);
vPixels = pPixelBlock.get_SafeArray(0);
double xMin = pExtent.XMin;
double yMax = pExtent.YMax;
pOrigin.X = xMin + cellsize / 2;
pOrigin.Y = yMax - cellsize / 2;
bX = pOrigin.X;
bY = pOrigin.Y;
pTinEdit.AddFromPixelBlock(bX, bY, cellsize, cellsize, nodata, vPixels, m_zTolerance, ref vtMissing, out vtMissing);
}
else //当有多个处理单元格时，依次循环处理每个单元格
{
int i = 0, j = 0, count = 0;
int FirstGoNodeCount = 0;
//while (nodeCount != FirstGoNodeCount)
//{
count++;
nodeCount = pTinNodeCount.NodeCount;
int bwidth = 0; int bheight = 0;
//依次循环处理
for (i = 0; i < (int)h + 1; i++)
{
if (i < (int)h)
{
bheight = 1000;
}
else
{
bheight = iHei - 1000 * i;
}
for (j = 0; j < (int)w + 1; j++)
{
if (j < (int)w)
{
bwidth = 1000;
}
else
{
bwidth = iWid - 1000 * j;
}
pBlockSize.SetCoords(bwidth, bheight);
pPixelBlock = pRawPixels.CreatePixelBlock(pBlockSize);
double bX1, bY1, xMin1, yMax1;
bX1 = pBlockSize.X;
bY1 = pBlockSize.Y;
pPixelBlockOrigin.SetCoords(j * 1000, i * 1000);
pRawPixels.Read(pPixelBlockOrigin, pPixelBlock);
vPixels = pPixelBlock.get_SafeArray(0);
xMin1 = pExtent.XMin;
yMax1 = pExtent.YMax;
//bX1 = pBlockSize.X;
//bY1 = pBlockSize.Y;
pOrigin.X = xMin1 + j * 1000 * cellsize + cellsize / 2.0f;
pOrigin.Y = yMax1 - i * 1000 * cellsize - cellsize / 2.0f;
bX1 = pOrigin.X;
bY1 = pOrigin.Y;
pTinEdit.AddFromPixelBlock(bX1, bY1, cellsize, cellsize, nodata, vPixels, m_zTolerance, ref vtMissing, out vtMissing);
FirstGoNodeCount = pTinNodeCount.NodeCount;
}
}
//}
}
//保存TIN文件
pTinEdit.SaveAs(tinFileName, ref vtMissing);
pTinEdit.StopEditing(true);
m_pTin = pTinEdit as ITin;
MessageBox.Show("转换成功！");
}
catch (SystemException e)
{
MessageBox.Show(e.Message);
}
}
/// <summary>
/// 根据生成的featureclass动态生成tin
/// </summary>
/// <params name="pFeatureClass"></params>
/// <params name="pField"></params>
/// <params name="pPath"></params>
/// <returns></returns>
private ITin CreateTin(IFeatureClass pFeatureClass, IField pField, string pPath)
{
IGeoDataset pGeoDataset = pFeatureClass as IGeoDataset;
ITinEdit pTinEdit = new TinClass();
pTinEdit.InitNew(pGeoDataset.Extent);
object pObj = Type.Missing;
pTinEdit.AddFromFeatureClass(pFeatureClass, null, pField, null, esriTinSurfaceType.esriTinMassPoint, ref pObj);
pTinEdit.SaveAs(pPath, ref pObj);
pTinEdit.Refresh();
return pTinEdit as ITin;
}