Convert part to feature command

ConvertPart.cs
// Copyright 2010 ESRI// // All rights reserved under the copyright laws of the United States// and applicable international laws, treaties, and conventions.// // You may freely redistribute and use this sample code, with or// without modification, provided you include the original copyright// notice and use restrictions.// // See the use restrictions at <your ArcGIS install location>/DeveloperKit10.0/userestrictions.txt.// using System;
using System.Runtime.InteropServices;
using ESRI.ArcGIS.ADF.BaseClasses;
using ESRI.ArcGIS.ADF.CATIDs;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Editor;
using ESRI.ArcGIS.Framework;
using ESRI.ArcGIS.Geodatabase;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.esriSystem; namespace Convert_Part_To_FeatureCS
{
/// <summary>/// The command must be in the edit sketch context menu /// and converts a selected part to its own feature./// </summary>
[Guid("f766682c-3a1c-4b97-8354-af3c12706e1f")]
[ClassInterface(ClassInterfaceType.None)]
[ProgId("Convert_Part_To_FeatureCS.ConvertPart")]
publicsealedclass ConvertPart : BaseCommand
{
#region ArcGIS Component Category Registrar generated code
/// <summary>/// Required method for ArcGIS Component Category registration -/// Do not modify the contents of this method with the code editor./// </summary>privatestaticvoid ArcGISCategoryRegistration(Type registerType)
{
string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID);
SketchMenuCommands.Register(regKey); }
/// <summary>/// Required method for ArcGIS Component Category unregistration -/// Do not modify the contents of this method with the code editor./// </summary>privatestaticvoid ArcGISCategoryUnregistration(Type registerType)
{
string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID);
SketchMenuCommands.Unregister(regKey); } #endregion#region COM Registration Function(s)
[ComRegisterFunction()]
[ComVisible(false)]
staticvoid RegisterFunction(Type registerType)
{
// Required for ArcGIS Component Category Registrar support
ArcGISCategoryRegistration(registerType);
} [ComUnregisterFunction()]
[ComVisible(false)]
staticvoid UnregisterFunction(Type registerType)
{
// Required for ArcGIS Component Category Registrar support
ArcGISCategoryUnregistration(registerType);
}
#endregionprivate IApplication m_application; public ConvertPart()
{
base.m_category = "Developer Samples";
base.m_caption = "Convert Part to Feature";
base.m_message = "Command must be run from Edit Sketch Context Menu only";
base.m_toolTip = "Creates a new feature from a part";
base.m_name = "Convert Part to Feature";
} public IEditor m_editor;
public IEditSketch m_editSketch;
public IFeatureClass featureClass;
public IMap map = new Map(); #region Overriden Class Methods /// <param name="hook">Instance of the application</param>publicoverridevoid OnCreate(object hook)
{
if (hook == null)
return; m_application = hook as IApplication;
if (m_application == null)
return; UID uID = new UID();
uID.Value = "esriEditor.Editor";
m_editor = m_application.FindExtensionByCLSID(uID) as IEditor; if (m_editor == null)
return; m_editSketch = m_editor as IEditSketch;
}
/// <summary>/// Command Enabled called to determine enable status./// </summary>publicoverridebool Enabled
{
get
{
if (m_editor == null)
returnfalse; if (!m_editSketch.Geometry.IsEmpty && m_editor.SelectionCount == 1)
{
returntrue;
}
else
{
returnfalse;
}
}
}
/// <summary>/// After enabling the edit sketch of a multipart feature right click on the part to be converted and/// select Convert Part to Feature, to make the part it's own feature./// </summary>publicoverridevoid OnClick()
{
IActiveView activeView; if (m_editor == null)
return; m_editor.StartOperation(); //if the sketch only has one part to begin with - exit.
IGeometryCollection geometryCollection = m_editSketch.Geometry as IGeometryCollection;
{
if (geometryCollection.GeometryCount == 1)
{
return;
} //get the part, this is the one the user right-clicked on.int Part = m_editSketch.Part; IEnumFeature enumFeature = m_editor.EditSelection;
enumFeature.Reset(); IFeature origFeature = enumFeature.Next(); if (origFeature == null)
{
m_editor.AbortOperation();
return;
} featureClass = origFeature.Class as IFeatureClass;
IFeature newFeature = featureClass.CreateFeature(); geometryCollection = origFeature.Shape as IGeometryCollection;
IGeometry origPartGeometry = geometryCollection.get_Geometry(Part); //delete the original part.
geometryCollection.RemoveGeometries(Part, 1);
geometryCollection.GeometriesChanged();
origFeature.Shape = geometryCollection as IGeometry;
origFeature.Store(); //check the type of geometry.
IPolygon polygon = new PolygonClass();
IPolyline polyline = new PolylineClass();
IMultipoint multiPoint = new MultipointClass();
object Missing = Type.Missing; //make sure the new geometry is z aware, set a flag for later use.
IGeometryDef fcGeoDef = CheckZGeometryDef(featureClass);
//if the feature class is z aware set the flag to true.
Boolean isZAware = true;
IZAware zAware;
if (fcGeoDef.HasZ == false)
{
isZAware = false;
}
switch (origPartGeometry.GeometryType)
{
case esriGeometryType.esriGeometryRing:
if (isZAware == true)
{
zAware = polygon as IZAware;
zAware.ZAware = true;
}
geometryCollection = polygon as IGeometryCollection;
geometryCollection.AddGeometry
(origPartGeometry, ref Missing, ref Missing);
break; case esriGeometryType.esriGeometryPath:
if (isZAware == true)
{
zAware = polyline as IZAware;
zAware.ZAware = true;
}
geometryCollection = polyline as IGeometryCollection;
geometryCollection.AddGeometry
(origPartGeometry, ref Missing, ref Missing);
break; case esriGeometryType.esriGeometryPoint:
if (isZAware == true)
{
zAware = multiPoint as IZAware;
zAware.ZAware = true;
}
geometryCollection = multiPoint as IGeometryCollection;
geometryCollection.AddGeometry
(origPartGeometry, ref Missing, ref Missing);
break; default:
m_editor.AbortOperation();
break;
} newFeature.Shape = geometryCollection as IGeometry; //copy the attributes of the orig feature the new feature.
IField field = new FieldClass();
IFields fields = origFeature.Fields; //skip OID and geometry.for (int fieldCount = 0; fieldCount < fields.FieldCount; fieldCount++)
{
field = fields.get_Field(fieldCount); if ((field.Type != esriFieldType.esriFieldTypeGeometry) &&
(field.Type != esriFieldType.esriFieldTypeOID) && field.Editable)
{
newFeature.set_Value(fieldCount, origFeature.get_Value(fieldCount));
}
} newFeature.Store(); m_editor.StopOperation("Convert Part to Feature"); //refresh map according to old and new selections.
activeView = m_editor.Map as IActiveView;
activeView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
m_editor.Map.ClearSelection(); ILayer featLayer = GetFeatureLayer(newFeature);
if (featLayer == null)
return; m_editor.Map.SelectFeature(featLayer, newFeature);
activeView.PartialRefresh
(esriViewDrawPhase.esriViewGeoSelection, null, null);
}
}
//}/// <summary>/// Function to obtain the feature layer from the selected feature./// </summary>public ILayer GetFeatureLayer(IFeature feature)
{
if (feature == null)
returnnull; map = m_editor.Map; featureClass = feature.Class as IFeatureClass; for (int layerCount = 0; layerCount < map.LayerCount; layerCount++)
{
// Search the layers for the layer in question and get the name.if (featureClass.AliasName == map.get_Layer(layerCount).Name)
{
return map.get_Layer(layerCount);
}
}
returnnull;
} public IGeometryDef CheckZGeometryDef(IFeatureClass featureClass)
{
string shapeFieldName = featureClass.ShapeFieldName;
IFields fields = featureClass.Fields;
int geometryIndex = fields.FindField(shapeFieldName);
IField field = fields.get_Field(geometryIndex);
IGeometryDef geometryDef = field.GeometryDef;
return geometryDef;
}
}
}
#endregion

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