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 # Class FMassBase

 Last update: 09.03.2026 

<a id="VM_Managed_DAFUL_FE_FMassBase"></a>

Namespace: [VM.Managed.DAFUL.FE](VM.Managed.DAFUL.FE.md)  
Assembly: VMFE.dll

This class is to represent the interface point at mode.

```csharp
public abstract class FMassBase : FESubEntity, IObservableObject, IDisposableObject, ILinkable, ILinkContainerEvent, IVerifiable, IHistoryObjectSerializable, IAttributeContainer, ISubEntity, IEntityBase, IObjectBase, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, IHasKeyObject, IHasName, IEnabled, IHasComment, INamed, INavigatorItem, IFEObject, IDraw, IDrawIcon, IVisible, IMultiChangable, IReferencable

```

#### Inheritance

object ← ObservableObject ← [LinkableBase](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/LinkableBase.cs) ← ObjectBase ← Object&lt;ObjectEventCore&gt; ← [SubEntity](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs) ← [FESubEntity](VM.Managed.DAFUL.FE.FESubEntity.md) ← [FMassBase](VM.Managed.DAFUL.FE.FMassBase.md)

#### Derived

[DistributedMass](VM.Managed.DAFUL.FE.DistributedMass.md), [PointMass](VM.Managed.DAFUL.FE.PointMass.md)

#### Implements

IObservableObject, IDisposableObject, ILinkable, ILinkContainerEvent, IVerifiable, [IHistoryObjectSerializable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMHist/Interfaces.cs), IAttributeContainer, ISubEntity, IEntityBase, IObjectBase, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, IHasKeyObject, IHasName, IEnabled, IHasComment, INamed, INavigatorItem, [IFEObject](VM.Managed.DAFUL.FE.IFEObject.md), IDraw, IDrawIcon, IVisible, IMultiChangable, IReferencable

#### Inherited Members

[FESubEntity.GetNodalBodyForReference(Reference, Mesh)](VM.Managed.DAFUL.FE.FESubEntity.md#VM_Managed_DAFUL_FE_FESubEntity_GetNodalBodyForReference_VM_Managed_Reference_VM_Managed_DAFUL_FE_Mesh_), [FESubEntity.GetNodalBodyForSubsystem(SubSystem, Mesh)](VM.Managed.DAFUL.FE.FESubEntity.md#VM_Managed_DAFUL_FE_FESubEntity_GetNodalBodyForSubsystem_VM_Managed_DAFUL_SubSystem_VM_Managed_DAFUL_FE_Mesh_), [FESubEntity.FEID](VM.Managed.DAFUL.FE.FESubEntity.md#VM_Managed_DAFUL_FE_FESubEntity_FEID), [FESubEntity.OwnerMesh](VM.Managed.DAFUL.FE.FESubEntity.md#VM_Managed_DAFUL_FE_FESubEntity_OwnerMesh), [SubEntity.Initialize(Unit.ConvertFactor)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), [SubEntity.GetModelNavigatorInformationImpl(XmlDocument, XmlElement, bool)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), [SubEntity.FixUp(ObjectBase)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), [SubEntity.WriteTemplateImpl(XmlWriter)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), [SubEntity.ReadTemplateImpl(XmlReader)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), [SubEntity.Name](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), [SubEntity.FullName](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), [SubEntity.NonSymmetricName](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), [SubEntity.DisplayName](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), [SubEntity.IsEnabled](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), [SubEntity.Comment](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMObjBase/SubEntity.cs), Object&lt;ObjectEventCore&gt;.GetKey(), Object&lt;ObjectEventCore&gt;.Initialize(Unit.ConvertFactor), Object&lt;ObjectEventCore&gt;.SetIconColor(Canvas), Object&lt;ObjectEventCore&gt;.OnDeserialization(object), Object&lt;ObjectEventCore&gt;.CustomGetObjectData(SerializationInfo, StreamingContext), Object&lt;ObjectEventCore&gt;.RollbackEvent(), Object&lt;ObjectEventCore&gt;.OnDeserializedCore(object), Object&lt;ObjectEventCore&gt;.Key, Object&lt;ObjectEventCore&gt;.UntypedEventCore, Object&lt;ObjectEventCore&gt;.EventCore, Object&lt;ObjectEventCore&gt;.Attributes, ObjectBase.ReplaceEventCore(ObjectEventCore), ObjectBase.SetModifiedCore(ModifiedResult.ModifiedType), ObjectBase.AddPostDeserialize(StreamingContext), ObjectBase.LinkAddedToDocumentCore(IOwned, bool), ObjectBase.SetModified(ModifiedResult.ModifiedType), ObjectBase.SetModified(), ObjectBase.SetModified(ModifiedResult.ModifiedType, IDocument), ObjectBase.DestroyObject(object, LinkEventArgs), ObjectBase.DestroyObject(DestroyEventArgs), ObjectBase.DestroyObject(), ObjectBase.Initialize(Unit.ConvertFactor), ObjectBase.FixUp(ObjectBase), ObjectBase.DoWorkAfterUpdateContents(), ObjectBase.SetOldNameWithNewEntity(ObjectBase, ObjectBase), ObjectBase.SetIconColor(Canvas), ObjectBase.RemoveFromCreatedList(), ObjectBase.PostAddToDocument(), ObjectBase.PostRemoveFromDocument(Document), ObjectBase.GetArgumentList(LinkedList&lt;ObjectBase&gt;), ObjectBase.ResetInvalidEntity(), ObjectBase.OnDeserialization(object), ObjectBase.IsSerializableEvent(Delegate), ObjectBase.CustomGetObjectData(SerializationInfo, StreamingContext), ObjectBase.CheckAndUpdateLink(HashSet&lt;ObjectBase&gt;), ObjectBase.Verify(VerifiedResult), ObjectBase.ConnectProxy(), ObjectBase.RollbackEvent(), ObjectBase.LinkRequestUpdating(object, LinkEventArgs), ObjectBase.LinkRequestUpdate(object, LinkEventArgs), ObjectBase.LinkRequestDestroying(object, LinkEventArgs), ObjectBase.LinkRequestDestroy(object, LinkEventArgs), ObjectBase.LinkAddedToDocument(object, AddToDocEventArgs), ObjectBase.LinkRemovedFromDocument(object, RemoveFromDocEventArgs), ObjectBase.DisposeManagedResources(), ObjectBase.GetDestroyEventExtraData(), ObjectBase.OnLinkReserved(ILink, object, EventArgs), ObjectBase.CreateEntityWhenUpdateContents(Action), ObjectBase.GetObjectByKey(UIntPtr), ObjectBase.FindObjectOnXmlDeserialize(string), ObjectBase.UpdateContents(XmlReader, ObjectBase, string), ObjectBase.UpdateContents(XmlReader, ObjectBase), ObjectBase.UpdateContents(string, string), ObjectBase.UpdateContents(string), ObjectBase.SetFlagWhenXMLFile(string, bool), ObjectBase.IsEqualArray&lt;T&gt;(T\[\], T\[\]), ObjectBase.IsEqualList(List&lt;double&gt;, List&lt;double&gt;), ObjectBase.SetContainer(IOwned, bool), ObjectBase.GetTargetListForUpdate(), ObjectBase.SkipUpdateObjectImpl(), ObjectBase.raise\_OnUpdating(object, LinkEventArgs), ObjectBase.raise\_OnUpdate(object, LinkEventArgs), ObjectBase.raise\_OnDestroying(object, LinkEventArgs), ObjectBase.raise\_OnDestroy(object, LinkEventArgs), ObjectBase.raise\_Destroying(object, Identifier), ObjectBase.raise\_OnAdded(object, AddToDocEventArgs), ObjectBase.raise\_OnRemoved(object, RemoveFromDocEventArgs), ObjectBase.raise\_OnContentsUpdated(object, EventArgs), ObjectBase.Dispose(bool), ObjectBase.SkipModified, ObjectBase.ClearChildInfoBeforeDeserialize, ObjectBase.KeyImpl, ObjectBase.ID, ObjectBase.TopologyEntityTypeName, ObjectBase.ObjectStateForCircularError, ObjectBase.ObjectState, ObjectBase.IsChildExternable, ObjectBase.IsExternable, ObjectBase.Container, ObjectBase.Owner, ObjectBase.Document, ObjectBase.UntypedEventCore, ObjectBase.KernelKey, ObjectBase.Key, ObjectBase.OnContentsUpdated, ObjectBase.OnRemoved, ObjectBase.OnAdded, ObjectBase.Destroying, ObjectBase.OnDestroy, ObjectBase.OnDestroying, ObjectBase.OnUpdate, ObjectBase.OnUpdating, [LinkableBase.OnDeserialization(object)](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/LinkableBase.cs), ObservableObject.Dispose(), ObservableObject.RaisePropertyChanged(string), ObservableObject.RaisePropertyChanged(string, object, object), ObservableObject.Dispose(bool), ObservableObject.DisposeManagedResources(), ObservableObject.DisposeUnmanagedResources(), ObservableObject.IsDisposed, ObservableObject.TryDisposing, ObservableObject.Disposed, ObservableObject.Disposing, ObservableObject.PropertyChanged

#### Extension Methods

[LinkPropertyItemCache.GetLinkProperties(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkProperties_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkPropertiesAndValues(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkPropertiesAndValues_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkedObjects&lt;T&gt;(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_)

## Constructors

### <a id="VM_Managed_DAFUL_FE_FMassBase__ctor_System_String_System_String_System_String_"></a> FMassBase(string, string, string)

Initializes a new instance of the  class.

```csharp
protected FMassBase(string strName, string strProxyName, string strBuildInfo)

```

#### Parameters

`strName` string

Name of the FE sub entity.

`strProxyName` string

Name of the proxy.

`strBuildInfo` string

The build information.

### <a id="VM_Managed_DAFUL_FE_FMassBase__ctor_System_String_System_String_"></a> FMassBase(string, string)

Initializes a new instance of the  class.

```csharp
protected FMassBase(string strProxyName, string strBuildInfo)

```

#### Parameters

`strProxyName` string

Name of the proxy.

`strBuildInfo` string

The build information.

### <a id="VM_Managed_DAFUL_FE_FMassBase__ctor_System_String_"></a> FMassBase(string)

Initializes a new instance of the  class.

```csharp
protected FMassBase(string strName)

```

#### Parameters

`strName` string

Name of the FE sub entity.

### <a id="VM_Managed_DAFUL_FE_FMassBase__ctor"></a> FMassBase()

Initializes a new instance of the  class.

```csharp
protected FMassBase()

```

## Properties

### <a id="VM_Managed_DAFUL_FE_FMassBase_IsHide"></a> IsHide

Gets or sets a value indicating whether this instance is hide.

```csharp
bool IsHide { get; set; }

```

#### Property Value

bool

### <a id="VM_Managed_DAFUL_FE_FMassBase_IsVisible"></a> IsVisible

Gets or sets a value indicating whether object is visible.

```csharp
bool IsVisible { get; set; }

```

#### Property Value

bool

### <a id="VM_Managed_DAFUL_FE_FMassBase_Layer"></a> Layer

Gets or sets the layer.

```csharp
Layer Layer { get; set; }

```

#### Property Value

Layer

## Methods

### <a id="VM_Managed_DAFUL_FE_FMassBase_Draw_VM_CAD_Kernel_Render_Canvas_"></a> Draw(Canvas)

Draws the icon.

```csharp
public virtual void Draw(Canvas canvas)

```

#### Parameters

`canvas` [Canvas](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VM.CAD.Kernel/Render/Canvas.cs)

The canvas has icon information.

### <a id="VM_Managed_DAFUL_FE_FMassBase_FixUp_VM_Managed_ObjectBase_"></a> FixUp(ObjectBase)

Before destroy the old object, perform a work.

```csharp
public override bool FixUp(ObjectBase ob)

```

#### Parameters

`ob` ObjectBase

The old object.

#### Returns

bool

`true` if success; otherwise, `false`.

### <a id="VM_Managed_DAFUL_FE_FMassBase_ReDraw"></a> ReDraw()

Redraw.

```csharp
virtual void ReDraw()

```

### <a id="VM_Managed_DAFUL_FE_FMassBase_ReDrawForHistory"></a> ReDrawForHistory()

Redraw for undo/redo

```csharp
void ReDrawForHistory()

```