private void simpleButton1_Click(object sender, EventArgs e)
{
double offsetValue = -1;
try
{
offsetValue = Convert.ToDouble(textEdit1.Text);
}
catch (Exception ex)
{
XtraMessageBox.Show("请输入数值类型", "提示信息", MessageBoxButtons.OK);
return;
}
try
{
//启动编辑
IFeatureLayer featureLayer = mLayer as IFeatureLayer;
IFeatureClass pFeatureClass = featureLayer.FeatureClass;
IWorkspace workspace = null;
IEngineEditor mEngineEditor = mEngineEditor = new EngineEditorClass();
if (pFeatureClass.FeatureDataset != null)
{
workspace = pFeatureClass.FeatureDataset.Workspace;
mEngineEditor.EditSessionMode = esriEngineEditSessionMode.esriEngineEditSessionModeVersioned;
mEngineEditor.StartEditing(workspace, mMap);
((IEngineEditLayers)mEngineEditor).SetTargetLayer(featureLayer, -1);
mEngineEditor.StartOperation();
}
ISelectionSet mSelectionSet = (mLayer as IFeatureSelection).SelectionSet;
ICursor mCursor;
mSelectionSet.Search(null, false, out mCursor);
IFeature mFeature = mCursor.NextRow() as IFeature;
while (mFeature != null)
{
IGeometry geometry = mFeature.ShapeCopy;
IPolycurve polycurve = geometry as IPolycurve;
polycurve.Generalize(offsetValue);
mFeature.Shape = polycurve as IGeometry;
mFeature.Store();
mFeature = mCursor.NextRow() as IFeature;
}
if (workspace != null)
{
mEngineEditor.StopEditing(true);
}
this.Dispose();
}
catch (Exception ex)
{
XtraMessageBox.Show("简化失败", "提示信息", MessageBoxButtons.OK);
}
}
public static string ConvertGeometryToJson(IGeometry geometry,
bool isGeneralize = false)
{
string geomJsonStr = null;
try
{
ITopologicalOperator topoGeom = geometry as ITopologicalOperator;
topoGeom.Simplify();
//IPolygon polygon = topoGeom as IPolygon;
//if (polygon != null)
//{
// polygon.Generalize(1);
//}
//if (geometry.SpatialReference == null || geometry.SpatialReference.Name == "Unknown")
//{
// geometry.SpatialReference = SpatialRefOpt.GetProjectedCoordinate(esriSRProjCS4Type.esriSRProjCS_Xian1980_3_Degree_GK_CM_120E);
//}
if (isGeneralize)
{
ISpatialReference spatialReference = geometry.SpatialReference;
enumSpatialRelType spatialRelType = GetSpatialRelType(spatialReference);
double offset = 0.000001;
if (spatialRelType == enumSpatialRelType.GCS)
{
offset = 0.00000001;
}
IPolycurve polycurve = geometry as IPolycurve;
polycurve.Generalize(offset);
}
IJSONWriter jsonWriter = new JSONWriterClass();
jsonWriter.WriteToString();
JSONConverterGeometryClass jsonCon = new JSONConverterGeometryClass();
jsonCon.WriteGeometry(jsonWriter, null, geometry, false);
geomJsonStr = Encoding.UTF8.GetString(jsonWriter.GetStringBuffer());
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine("\nConvertGeometryToJson::error::" + ex.Source + ".\n" + ex.ToString());
}
return(geomJsonStr);
}
public override void OnClick()
{
try
{
frmMaxAllowableOffset _frmMaxAllowableOffset = new frmMaxAllowableOffset()
{
Text = "综合"
};
if (_frmMaxAllowableOffset.ShowDialog() == DialogResult.OK)
{
double maxAllowableOffset = _frmMaxAllowableOffset.MaxAllowableOffset;
IEnumFeature featureSelection = _context.FocusMap.FeatureSelection as IEnumFeature;
featureSelection.Reset();
IFeature feature = featureSelection.Next();
IWorkspaceEdit editWorkspace = Yutai.ArcGIS.Common.Editor.Editor.EditWorkspace;
editWorkspace.StartEditOperation();
IPolycurve shape = null;
while (feature != null)
{
shape = feature.Shape as IPolycurve;
if (shape != null && editWorkspace == (feature.Class as IDataset).Workspace)
{
shape.Generalize(maxAllowableOffset);
feature.Shape = shape;
feature.Store();
}
feature = featureSelection.Next();
}
editWorkspace.StopEditOperation();
_context.ActiveView.Refresh();
}
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
}
}