## On this page # Class RSpringDamper Last update: 16.07.2025 Namespace: [VM.Managed.DAFUL.Force](VM.Managed.DAFUL.Force.md) Assembly: VMDFB.dll This class is to represent the rotational spring damper force. ```csharp public class RSpringDamper : Force, IObservableObject, IDisposableObject, ILinkable, ILinkContainerEvent, IVerifiable, IHistoryObjectSerializable, IAttributeContainer, IContainer, IEntity, IEntityBase, IObjectBase, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, IHasKeyObject, IHasName, IEnabled, IHasComment, IVisible, IDocumentOwner, INamed, INavigatorItem, IVisible, IMultiChangable, IHasProperty, IGroup, IDraw, IDrawIcon, IReferencable, ITransformable, IConnector, IEntityRelation, IGenerable, IArgument, IReportable, IFlip, IEnableForSimulationScenario, ITorqueReferenceForBearing ``` #### Inheritance [object](https://learn.microsoft.com/dotnet/api/system.object) ← ObservableObject ← LinkableBase ← ObjectBase ← Object<EntityEventCore> ← ContainerObject<EntityEventCore> ← EntityBase ← Entity<PropertyRSpringDamper> ← Connector<PropertyRSpringDamper> ← [Force<PropertyRSpringDamper>](VM.Managed.DAFUL.Force.Force-1.md) ← [RSpringDamper](VM.Managed.DAFUL.Force.RSpringDamper.md) #### Implements IObservableObject, IDisposableObject, ILinkable, ILinkContainerEvent, IVerifiable, IHistoryObjectSerializable, IAttributeContainer, IContainer, IEntity, IEntityBase, IObjectBase, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, IHasKeyObject, IHasName, IEnabled, IHasComment, IVisible, IDocumentOwner, INamed, INavigatorItem, IVisible, IMultiChangable, IHasProperty, IGroup, IDraw, IDrawIcon, IReferencable, ITransformable, IConnector, IEntityRelation, IGenerable, IArgument, IReportable, IFlip, IEnableForSimulationScenario, ITorqueReferenceForBearing #### Inherited Members [Force<PropertyRSpringDamper>.Initialize(Unit.ConvertFactor)](VM.Managed.DAFUL.Force.Force-1.md#VM_Managed_DAFUL_Force_Force_1_Initialize_VM_Unit_ConvertFactor_), [Force<PropertyRSpringDamper>.WriteMarker(XmlWriter, Marker, string)](VM.Managed.DAFUL.Force.Force-1.md#VM_Managed_DAFUL_Force_Force_1_WriteMarker_System_Xml_XmlWriter_VM_Managed_DAFUL_Marker_System_String_), [Force<PropertyRSpringDamper>.ReadMarker(XmlReader, Marker, string)](VM.Managed.DAFUL.Force.Force-1.md#VM_Managed_DAFUL_Force_Force_1_ReadMarker_System_Xml_XmlReader_VM_Managed_DAFUL_Marker_System_String_), [Force<PropertyRSpringDamper>.UseForSimulationScenario](VM.Managed.DAFUL.Force.Force-1.md#VM_Managed_DAFUL_Force_Force_1_UseForSimulationScenario), Connector<PropertyRSpringDamper>.Initialize(Unit.ConvertFactor), Connector<PropertyRSpringDamper>.GetTargetListForUpdate(), Connector<PropertyRSpringDamper>.Verify(VerifiedResult), Connector<PropertyRSpringDamper>.LinkRequestUpdate(object, LinkEventArgs), Connector<PropertyRSpringDamper>.GetModelNavigatorInformationImpl(XmlDocument, XmlElement, bool), Connector<PropertyRSpringDamper>.Draw(Canvas), Connector<PropertyRSpringDamper>.ReDraw(), Connector<PropertyRSpringDamper>.FindLocal(string), Connector<PropertyRSpringDamper>.Instantiate(Reference, Canvas), Connector<PropertyRSpringDamper>.MakeReference(LinkedList<Reference>), Connector<PropertyRSpringDamper>.MakeReferenceImpl(LinkedList<Reference>), Connector<PropertyRSpringDamper>.GetLayerImpl(), Connector<PropertyRSpringDamper>.SetLayerImpl(Layer), Connector<PropertyRSpringDamper>.SwitchImpl(), Connector<PropertyRSpringDamper>.BaseMarker, Connector<PropertyRSpringDamper>.ActionMarker, Connector<PropertyRSpringDamper>.ConnectorReferenceMarker, Connector<PropertyRSpringDamper>.PreventDuplicatedRBE, Connector<PropertyRSpringDamper>.Generable, Connector<PropertyRSpringDamper>.HasLayerExplicitly, Connector<PropertyRSpringDamper>.Hide, Connector<PropertyRSpringDamper>.Referencable, Connector<PropertyRSpringDamper>.Visible, Connector<PropertyRSpringDamper>.Layer, Connector<PropertyRSpringDamper>.ReferenceType, Connector<PropertyRSpringDamper>.ArgumentType, Connector<PropertyRSpringDamper>.CanWriteToOutFileImpl, Connector<PropertyRSpringDamper>.ReportTypeImpl, Connector<PropertyRSpringDamper>.CanSwitchImpl, Entity<PropertyRSpringDamper>.Initialize(Unit.ConvertFactor), Entity<PropertyRSpringDamper>.GetUnnamedObjectName(object), Entity<PropertyRSpringDamper>.FindLocal(string), Entity<PropertyRSpringDamper>.Property, EntityBase.Initialize(Unit.ConvertFactor), EntityBase.SetOldNameWithNewEntity(ObjectBase, ObjectBase), EntityBase.PropertyRequestUpdate(object, LinkEventArgs), EntityBase.OnDeserializationForAttribute(), EntityBase.OnUpdatePropertyImpl(Property, LinkEventArgs), EntityBase.LinkRequestDestroying(object, LinkEventArgs), EntityBase.GetModelNavigatorInformationImpl(XmlDocument, XmlElement, bool), EntityBase.FixUp(ObjectBase), EntityBase.FindLocal(string), EntityBase.WriteTemplateImpl(XmlWriter), EntityBase.ReadTemplateImpl(XmlReader), EntityBase.LinkAddedToDocument(object, AddToDocEventArgs), EntityBase.OnDeserialization(object), EntityBase.Name, EntityBase.FullName, EntityBase.NonSymmetricName, EntityBase.DisplayName, EntityBase.IsEnabled, EntityBase.Comment, EntityBase.HasLayerExplicitly, EntityBase.UntypedProperty, EntityBase.IsFileProperty, EntityBase.Layer, EntityBase.IsVisible, ContainerObject<EntityEventCore>.Find(string), ContainerObject<EntityEventCore>.FindLocal(string), ContainerObject<EntityEventCore>.GetUnnamedObjectName(object), ContainerObject<EntityEventCore>.GetNewEntityName(string), ContainerObject<EntityEventCore>.GetNewEntityName(string, bool, int), ContainerObject<EntityEventCore>.GetNewEntityName(string, bool, int, int), Object<EntityEventCore>.GetKey(), Object<EntityEventCore>.Initialize(Unit.ConvertFactor), Object<EntityEventCore>.SetIconColor(Canvas), Object<EntityEventCore>.OnDeserialization(object), Object<EntityEventCore>.CustomGetObjectData(SerializationInfo, StreamingContext), Object<EntityEventCore>.RollbackEvent(), Object<EntityEventCore>.OnDeserializedCore(object), Object<EntityEventCore>.Key, Object<EntityEventCore>.UntypedEventCore, Object<EntityEventCore>.EventCore, Object<EntityEventCore>.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<ObjectBase>), ObjectBase.ResetInvalidEntity(), ObjectBase.OnDeserialization(object), ObjectBase.IsSerializableEvent(Delegate), ObjectBase.CustomGetObjectData(SerializationInfo, StreamingContext), ObjectBase.CheckAndUpdateLink(HashSet<ObjectBase>), 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<T>(T\[\], T\[\]), ObjectBase.IsEqualList(List<double>, List<double>), 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), 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<T>(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_) ## Constructors ### RSpringDamper() Initializes a new instance of the class. ```csharp public RSpringDamper() ``` ### RSpringDamper(string) Initializes a new instance of the class. ```csharp public RSpringDamper(string strName) ``` #### Parameters `strName` [string](https://learn.microsoft.com/dotnet/api/system.string) Name of the rotational spring damper. ## Properties ### FreeAngle Gets or sets the free angle. ```csharp public ExpressionValueVariable FreeAngle { get; set; } ``` #### Property Value ExpressionValueVariable ### ReportTypeImpl Gets the report type. ```csharp protected override IReportable.ReportEntityType ReportTypeImpl { get; } ``` #### Property Value IReportable.ReportEntityType ## Methods ### CalculationTwoMarkerAngle(OMatrix, OMatrix, double\[\]) Calculations the two marker angle. ```csharp public static bool CalculationTwoMarkerAngle(OMatrix baseOMat, OMatrix actionOMat, double[] angle) ``` #### Parameters `baseOMat` OMatrix The base orientation matrix. `actionOMat` OMatrix The action orientation matrix. `angle` [double](https://learn.microsoft.com/dotnet/api/system.double)\[\] The angle. #### Returns [bool](https://learn.microsoft.com/dotnet/api/system.boolean) ### CalculationTwoMarkerZAngle(OMatrix, OMatrix) Calculations the two marker Z angle. ```csharp public static double CalculationTwoMarkerZAngle(OMatrix baseOMat, OMatrix actionOMat) ``` #### Parameters `baseOMat` OMatrix The base O mat. `actionOMat` OMatrix The action O mat. #### Returns [double](https://learn.microsoft.com/dotnet/api/system.double) ### Draw(Canvas) Draws the icon. ```csharp public override void Draw(Canvas canvas) ``` #### Parameters `canvas` Canvas The canvas has icon information. ### Initialize(ConvertFactor) Initializes member through unit convert factor. ```csharp public override void Initialize(Unit.ConvertFactor factor) ``` #### Parameters `factor` Unit.ConvertFactor The unit convert factor. ### LinkRequestUpdate(object, LinkEventArgs) Request for update the linked object. ```csharp protected override void LinkRequestUpdate(object objNotifier, LinkEventArgs arg) ``` #### Parameters `objNotifier` [object](https://learn.microsoft.com/dotnet/api/system.object) The linked object. `arg` LinkEventArgs The instance containing the event data. ### MessageForPositionChanging(string) Messages for position changing. ```csharp public static void MessageForPositionChanging(string strName) ``` #### Parameters `strName` [string](https://learn.microsoft.com/dotnet/api/system.string) Name of the string. ### UpdateFreeAngle() Updates the free angle. ```csharp public void UpdateFreeAngle() ```