/// <summary>
/// 创建TIN
/// </summary>
private void CreateDelaunay()
{
//创建TIN
IFeatureLayer featureLayer = m_dataInfo.GetInputLayer() as IFeatureLayer;
IFeatureClass featureClass = featureLayer.FeatureClass;
IField pField = featureClass.Fields.get_Field(0);
if (pField == null)
{
MessageBox.Show("创建Delaunay三角网失败");
return;
}
IGeoDataset pGeoDataset = featureClass as IGeoDataset;
IEnvelope pEnvelope = pGeoDataset.Extent;
pEnvelope.SpatialReference = pGeoDataset.SpatialReference;
ITinEdit pTinEdit = new TinClass();
pTinEdit.InitNew(pEnvelope);
object obj = Type.Missing;
pTinEdit.AddFromFeatureClass(featureClass, null, pField, null, esriTinSurfaceType.esriTinMassPoint, ref obj);
m_DT = pTinEdit as ITin;
//将所有点标识为噪声点
ITinAdvanced tinAdvanced = m_DT as ITinAdvanced;
for (int i = 0; i < tinAdvanced.NodeCount; i++)
{
m_nodeFlag.Add(-1);
}
}
/// <summary>
/// 通过IPoint创建DBSCANPoints
/// </summary>
/// <returns></returns>
private List <DBSCANPoint> CreateDBSCANPoints()
{
List <DBSCANPoint> pnts = new List <DBSCANPoint>();
IFeatureLayer featurelayer = m_dataInfo.GetInputLayer() as IFeatureLayer;
IFeatureCursor featureCursor = featurelayer.FeatureClass.Search(null, false);
IFeature feature = featureCursor.NextFeature();
DBSCANPoint pnt;
while (feature != null)
{
pnt = new DBSCANPoint(feature.Shape as IPoint, feature.OID);
pnts.Add(pnt);
feature = featureCursor.NextFeature();
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(featureCursor);
return(pnts);
}
private void comboBoxInput_SelectionChangeCommitted(object sender, EventArgs e)
{
string layerName = comboBoxInput.SelectedItem.ToString();
m_dataInfo.SetInputLayerName(layerName);
IDataset dataset = (IDataset)m_dataInfo.GetInputLayer();
string filePath = dataset.Workspace.PathName;
m_dataInfo.SetOutputFilePath(filePath);
// string fileName = "convexhull.shp";
textBoxOutput.Text = m_dataInfo.GetOutputFilePath() + "\\" + m_dataInfo.GetOutputFileName();
}