private void AddFields(string shapeFilePath, string fieldName, esriFieldType type)
{
_shapeOp.FilePath = shapeFilePath;
IFeatureClass pFeatureClass = _shapeOp.OpenFeatureClass();
if (pFeatureClass.Fields.FindField(fieldName) == -1)
{
_shapeOp.AddField(pFeatureClass, fieldName, type);
GC.Collect();
}
}
private void LoadMap(string layerType, esriGeometryType targetType)
{
try
{
//如果存在,删除
if (_mapIndex.ContainsKey(layerType))
{
var pLayer = _axMapControl.Map.Layer[_mapIndex[layerType]];
_axMapControl.Map.DeleteLayer(pLayer);
_mapIndex.Remove(layerType);
}
//添加
var pFeatureClass = _shapeOp.OpenFeatureClass();
if (!pFeatureClass.GeometryTypeCheck(targetType))
{
throw new Exception("打开要素类型不正确");
}
_axMapControl.Map.AddLayer(new FeatureLayerClass()
{
FeatureClass = pFeatureClass
});
_mapIndex.Add(layerType, _axMapControl.Map.LayerCount - 1);
}
catch (Exception e)
{
Messenger.Default.Send(new GenericMessage <string>(e.Message), "Exception");
}
}
public static IEnumerable <HighTrainPath> ReadRailway(string filePath)
{
_shapeOp = new ShapeOp(filePath);
var pFeatureClass = _shapeOp.OpenFeatureClass();
if (!pFeatureClass.FieldExistCheck("Speed", "起点", "终点"))
{
throw new ArgumentException("部分字段不存在");
}
IFeatureCursor pFeaureCursor = pFeatureClass.Search(null, false);
IFeature pFeature;
int speedIndex = pFeatureClass.Fields.FindField("Speed");
int startIndex = pFeatureClass.Fields.FindField("起点");
int stopIndex = pFeatureClass.Fields.FindField("终点");
while ((pFeature = pFeaureCursor.NextFeature()) != null)
{
var speed = Convert.ToSingle(pFeature.Value[speedIndex]);
var start = Convert.ToString(pFeature.Value[startIndex]);
var stop = Convert.ToString(pFeature.Value[stopIndex]);
IPolyline polyline = pFeature.Shape as IPolyline;
var distance = (float)polyline.Length;
yield return(new HighTrainPath(start, stop, distance, speed));
}
Marshal.ReleaseComObject(pFeaureCursor);
}
private void InitDic()
{
ShapeOp shapeOp = new ShapeOp(CityFilePath);
IFeatureClass pFeatureClass = shapeOp.OpenFeatureClass();
var res = shapeOp.FindValue(pFeatureClass, "Name", SelectedIndex);
foreach (var re in res)
{
CityValues.Add(re.Key, Convert.ToSingle(re.Value));
}
}
private void InitPop()
{
_popDic = new Dictionary <string, float>();
if (String.IsNullOrEmpty(_selectedPopIndex))
{
return;
}
ShapeOp op = new ShapeOp(CityFilePath);
var pFeatureClass = op.OpenFeatureClass();
var res = op.FindValue(pFeatureClass, "Name", SelectedPopIndex);
foreach (var re in res)
{
_popDic.Add(re.Key, Convert.ToSingle(re.Value));
}
}
private void InitControls()
{
Cities = new ObservableCollection <CalculatorCity>();
try
{
var cities = NetWorkUtil.ReadCities(CityFilePath);
foreach (var city in cities)
{
Cities.Add(new CalculatorCity(city));
}
ShapeOp shapeOp = new ShapeOp(CityFilePath);
Indexes = shapeOp.OpenFeatureClass().NumbericFieldsName();
}
catch (ArgumentException e)
{
Messenger.Default.Send(new GenericMessage <string>(e.Message), "Exception");
}
catch (Exception e)
{
_log.Error(e.Message + e.StackTrace);
}
}
public static IEnumerable <City> ReadCities(string filePath)
{
_shapeOp = new ShapeOp(filePath);
var pFeatureClass = _shapeOp.OpenFeatureClass();
if (!pFeatureClass.FieldExistCheck("Name") ||
!pFeatureClass.FieldExistCheck("是否为站点"))
{
throw new ArgumentException("部分字段不存在");
}
IFeatureCursor pFeaureCursor = pFeatureClass.Search(null, false);
IFeature pFeature;
int nameIndex = pFeatureClass.Fields.FindField("Name");
int typeIndex = pFeatureClass.Fields.FindField("是否为站点");
while ((pFeature = pFeaureCursor.NextFeature()) != null)
{
var name = Convert.ToString(pFeature.Value[nameIndex]);
IPoint point = pFeature.Shape as IPoint;
yield return(new City(point.X, point.Y, name, pFeature.Value[typeIndex].ToString().Trim()));
}
Marshal.ReleaseComObject(pFeaureCursor);
}