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 # Interface IContactGeometry

 Last update: 09.03.2026 

<a id="VM_Managed_DAFUL_IContactGeometry"></a>

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

This interface is to represent the contact geometry.

```csharp
public interface IContactGeometry

```

#### 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_)

## Properties

### <a id="VM_Managed_DAFUL_IContactGeometry_GeometryParentKey"></a> GeometryParentKey

Get the key of geometry parent

```csharp
ObjectBase.ConvertKey GeometryParentKey { get; }

```

#### Property Value

ObjectBase.ConvertKey

### <a id="VM_Managed_DAFUL_IContactGeometry_MaxPenetration"></a> MaxPenetration

Gets or sets the maximum penetration.

```csharp
ExpressionValueVariable MaxPenetration { get; set; }

```

#### Property Value

[ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

### <a id="VM_Managed_DAFUL_IContactGeometry_ReferenceMarker"></a> ReferenceMarker

Gets the reference marker.

```csharp
InvisibleMarker ReferenceMarker { get; }

```

#### Property Value

[InvisibleMarker](VM.Managed.DAFUL.InvisibleMarker.md)

### <a id="VM_Managed_DAFUL_IContactGeometry__Geometry"></a> \_Geometry

Gets or sets the geometry.

```csharp
Linker<IContactable> _Geometry { get; set; }

```

#### Property Value

Linker&lt;[IContactable](VM.Managed.DAFUL.IContactable.md)&gt;

## Methods

### <a id="VM_Managed_DAFUL_IContactGeometry_GetPointDirection_VM_Managed_VectorBase__VM_Managed_VectorBase__"></a> GetPointDirection(ref VectorBase, ref VectorBase)

Gets the point direction.

```csharp
bool GetPointDirection(ref VectorBase point, ref VectorBase direction)

```

#### Parameters

`point` VectorBase

The point.

`direction` VectorBase

The direction.

#### Returns

bool

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