private void btnOk_Click(object sender, EventArgs e)
{
//从点图层中读取所有点
pointSE pPointse = new pointSE();
pPointse = ReadPoint();
IPointCollection PointCollection = pPointse.pPointCollection;
List <double> sunv = new List <double>();
List <double> earv = new List <double>();
sunv = pPointse.sunvec;
earv = pPointse.earvec;
//创建shp文件
creatshpfile();
//根据点生成线
for (int i = 0; i < PointCollection.PointCount; i++)
{
IPolyline PolySunline = CreateSunPolyline(PointCollection.Point[i], sunv[i]);
IPolyline PolyEarline = CreateSunPolyline(PointCollection.Point[i], earv[i]);
AddFeatureVector(PolySunline as IGeometry, "VecValue", sunv[i], "Type", "太阳矢量");
AddFeatureVector(PolyEarline as IGeometry, "VecValue", earv[i], "Type", "地球矢量");
}
this.Close();
}
//从点图层中收集所有点
private pointSE ReadPoint()
{
string pPointFileName = cmbPointLayer.SelectedItem.ToString();
ILayer pLayer = null;
for (int i = 0; i < m_mapControl.LayerCount; i++)
{
if (pPointFileName == m_mapControl.get_Layer(i).Name)
{
pLayer = m_mapControl.get_Layer(i);
break;
}
}
int sunindex = 0;
int earindex = 0;
List <double> sunvect = new List <double>();
List <double> earvect = new List <double>();
ITable pTable = pLayer as ITable;
IFields pPPfields = pTable.Fields;
for (int i = 0; i < pPPfields.FieldCount; i++)
{
if (pPPfields.Field[i].Name == cmbSunField.Text)
{
sunindex = i;
}
if (pPPfields.Field[i].Name == cmbEarthField.Text)
{
earindex = i;
}
}
psf = ((IGeoDataset)pLayer).SpatialReference;
IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer;
//IFeatureCursor pFeatureCursor = pFeatureLayer.Search(null, false);
//获取数据库或者单个文件的第一个属性字段
//IFeature pFeature = null;
//IFeature pFeature=pFeatureCursor.NextFeature();
//IField pField = null;
//if (pFeatureLayer.FeatureClass.Fields.FindField("FID") != -1)
//{
// pField = pFeatureLayer.FeatureClass.Fields.get_Field(pFeatureLayer.FeatureClass.Fields.FindField("FID"));
//}
//else if (pFeatureLayer.FeatureClass.Fields.FindField("OBJECTID") != -1)
//{
// pField = pFeatureLayer.FeatureClass.Fields.get_Field(pFeatureLayer.FeatureClass.Fields.FindField("OBJECTID"));
//}
//第一个属性字段名称
IFeatureClass pFC = pFeatureLayer.FeatureClass;
IFeatureCursor pFCursor = pFC.Search(null, false);
IFeature pF = pFCursor.NextFeature();
IPointCollection pPointCollection = new MultipointClass();
while (pF != null)
{
IGeometry pGeometry = pF.Shape as IGeometry;
IPoint pPoint = pGeometry as IPoint;
if (pF.get_Value(sunindex).GetType().FullName != "System.DBNull" &&
pF.get_Value(earindex).GetType().FullName != "System.DBNull")
{
sunvect.Add(Convert.ToDouble(pF.get_Value(sunindex)));
earvect.Add(Convert.ToDouble(pF.get_Value(earindex)));
pPointCollection.AddPoint(pPoint);
}
pF = pFCursor.NextFeature();
}
//string FirstFieldName = pField.AliasName;
//IQueryFilter pQueryFilter = new QueryFilterClass();
//pQueryFilter.WhereClause = FirstFieldName + ">=0";
//int number = pFeatureLayer.FeatureClass.FeatureCount(pQueryFilter);
//IPointCollection pPointCollection = new MultipointClass();
//for (int i = 0; i < number; i++)
//{
// IGeometry pGeometry = pFeature.Shape as IGeometry;
// IPoint pPoint = pGeometry as IPoint;
// pPointCollection.AddPoint(pPoint);
// pFeature = pFeatureCursor.NextFeature();
// sunvect.Add(Convert.ToDouble(pFeature.get_Value(sunindex)));
// earvect.Add(Convert.ToDouble(pFeature.get_Value(earindex)));
//}
pointSE pPointSE = new pointSE();
pPointSE.pPointCollection = pPointCollection;
pPointSE.sunvec = sunvect;
pPointSE.earvec = earvect;
return(pPointSE);
}
