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Dimension Class

Dimension Class

An object that represents a dimension within the Revit project.
Inheritance Hierarchy

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax 
public class Dimension : Element

The Dimension type exposes the following members.

Properties
Name Description
Public property Above The text shown above the segment's value.
Public property AreReferencesAvailable Indicates if this dimension's references can be resolved.
Public property AreSegmentsEqual Indicates if all segments are forced to be equal.
Public property AssemblyInstanceId The id of the assembly instance to which the element belongs.
(Inherited from Element )
Public property Below The text shown below the segment's value.
Public property Code example BoundingBox Retrieves a box that circumscribes all geometry of the element.
(Inherited from Element )
Public property Category Retrieves a Category object that represents the category or sub category in which the element resides.
(Inherited from Element )
Public property Code example CreatedPhaseId Id of a Phase at which the Element was created.
(Inherited from Element )
Public property Curve A curve that represents the dimension line.
Public property Code example DemolishedPhaseId Id of a Phase at which the Element was demolished.
(Inherited from Element )
Public property Code example DesignOption Returns the design option to which the element belongs.
(Inherited from Element )
Public property DimensionShape The shape of this dimension.
Public property DimensionType The dimension style of this dimension.
Public property Document Returns the Document in which the Element resides.
(Inherited from Element )
Public property FamilyLabel The family parameter label of the dimension.
Public property Code example Geometry Retrieves the geometric representation of the element.
(Inherited from Element )
Public property GroupId The id of the group to which an element belongs.
(Inherited from Element )
Public property HasLeader True if dimension has leader, false otherwise.
Public property Code example Id A unique identifier for an Element in an Autodesk Revit project.
(Inherited from Element )
Public property IsLocked Indicates if this dimension is locked.
Public property IsModifiable Identifies if the element is modifiable.
(Inherited from Element )
Public property IsTransient Indicates whether an element is transient or permanent.
(Inherited from Element )
Public property IsValid Indicates if this dimension is valid.
Public property IsValidObject Specifies whether the .NET object represents a valid Revit entity.
(Inherited from Element )
Public property LeaderEndPosition The position of the dimension's leader end point.
Public property LevelId The id of the level associated with the element.
(Inherited from Element )
Public property Code example Location This property is used to find the physical location of an element within a project.
(Inherited from Element )
Public property Name Retrieves or changes the name associated with the Dimension.
Public property NumberOfSegments The number of segments for the dimension.
Public property Origin The dimension origin.
Public property OwnerViewId The id of the view that owns the element.
(Inherited from Element )
Public property Code example Parameter BuiltInParameter Retrieves a parameter from the element given a parameter id.
(Inherited from Element )
Public property Parameter Definition Retrieves a parameter from the element based on its definition.
(Inherited from Element )
Public property Parameter Guid Retrieves a parameter from the element given a GUID for a shared parameter.
(Inherited from Element )
Public property Code example Parameters Retrieves a set containing all of the parameters that are contained within the element.
(Inherited from Element )
Public property ParametersMap Retrieves a map containing all of the parameters that are contained within the element.
(Inherited from Element )
Public property Pinned Identifies if the element has been pinned to prevent changes.
(Inherited from Element )
Public property Prefix The text shown before the segment's value.
Public property References Returns an array of geometric references to which the dimension is attached.
Public property Segments The segments in the dimension.
Public property Suffix The text shown after the segment's value.
Public property Code example TextPosition The position of the dimension text's drag point.
Public property Code example UniqueId A stable unique identifier for an element within the document.
(Inherited from Element )
Public property Value The value of the dimension.
Public property ValueOverride The text that replaces the segment's value.
Public property ValueString The dimension value as a user visible string.
Public property VersionGuid Get the element version Guid.
(Inherited from Element )
Public property View Supplies the view that contains the dimension if the dimension is view specific.
Public property ViewSpecific Identifies if the element is owned by a view.
(Inherited from Element )
Public property WorksetId Get Id of the Workset which owns the element.
(Inherited from Element )
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Methods
Name Description
Public method ArePhasesModifiable Returns true if the properties CreatedPhaseId and DemolishedPhaseId can be modified for this Element.
(Inherited from Element )
Public method CanBeHidden Indicates if the element can be hidden in the view.
(Inherited from Element )
Public method CanBeLocked Identifies if the element can be locked.
(Inherited from Element )
Public method CanDeleteSubelement Checks if given subelement can be removed from the element.
(Inherited from Element )
Public method CanHaveTypeAssigned Identifies if the element can have a type assigned.
(Inherited from Element )
Public method ChangeTypeId(ElementId) Changes the type of the element.
(Inherited from Element )
Public method DeleteEntity Deletes the existing entity created by %schema% in the element
(Inherited from Element )
Public method DeleteSubelement Removes a subelement from the element.
(Inherited from Element )
Public method DeleteSubelements Removes the subelements from the element.
(Inherited from Element )
Public method Dispose
(Inherited from Element )
Public method Equals Determines whether the specified object is equal to the current object.
(Inherited from Object )
Public method EvaluateAllParameterValues Evaluates all the parameters' values of the element.
(Inherited from Element )
Public method EvaluateParameterValues Evaluate the parameters' values of the element on the given parameter ID set.
(Inherited from Element )
Public method GetDependentElements Get all elements that, from a logical point of view, are the children of this Element.
(Inherited from Element )
Public method GetEntity Returns the existing entity corresponding to the Schema if it has been saved in the Element, or an invalid entity otherwise.
(Inherited from Element )
Public method GetEntitySchemaGuids Returns the Schema guids of any Entities stored in this element.
(Inherited from Element )
Public method GetExternalFileReference Gets information pertaining to the external file referenced by the element.
(Inherited from Element )
Public method GetExternalResourceReference Gets the ExternalResourceReference associated with a specified external resource type.
(Inherited from Element )
Public method GetExternalResourceReferenceExpanded Gets the collection of ExternalResourceReference associated with a specified external resource type.
(Inherited from Element )
Public method GetExternalResourceReferences Gets the map of the external resource references referenced by the element.
(Inherited from Element )
Public method GetExternalResourceReferencesExpanded Gets the expanded map of the external resource references referenced by the element.
(Inherited from Element )
Public method Code example GetGeneratingElementIds Returns the ids of the element(s) that generated the input geometry object.
(Inherited from Element )
Public method GetGeometryObjectFromReference Retrieve one geometric primitive contained in the element given a reference.
(Inherited from Element )
Public method GetHashCode Serves as the default hash function.
(Inherited from Object )
Public method GetMaterialArea Gets the area of the material with the given id.
(Inherited from Element )
Public method GetMaterialIds Gets the element ids of all materials present in the element.
(Inherited from Element )
Public method GetMaterialVolume Gets the volume of the material with the given id.
(Inherited from Element )
Public method GetMonitoredLinkElementIds Provides the link instance IDs when the element is monitoring.
(Inherited from Element )
Public method GetMonitoredLocalElementIds Provides the local element IDs when the element is monitoring.
(Inherited from Element )
Public method GetOrderedParameters Gets the parameters associated to the element in order.
(Inherited from Element )
Public method GetParameter Retrieves a parameter from the element given identifier.
(Inherited from Element )
Public method GetParameterFormatOptions Returns a FormatOptions override for the element Parameter, or a default FormatOptions if no override exists.
(Inherited from Element )
Public method GetParameters Retrieves the parameters from the element via the given name.
(Inherited from Element )
Public method GetPhaseStatus Gets the status of a given element in the input phase
(Inherited from Element )
Public method GetSubelements Returns the collection of element subelements.
(Inherited from Element )
Public method GetType Gets the Type of the current instance.
(Inherited from Object )
Public method Code example GetTypeId Returns the identifier of this element's type.
(Inherited from Element )
Public method GetValidTypes Obtains a set of types that are valid for this element.
(Inherited from Element )
Public method HasOneSegment Determines whether a dimension has one segment.
Public method HasPhases Returns true if this Element has the properties CreatedPhaseId and DemolishedPhaseId.
(Inherited from Element )
Public method IsCreatedPhaseOrderValid Returns true if createdPhaseId and demolishedPhaseId are in order.
(Inherited from Element )
Public method IsDemolishedPhaseOrderValid Returns true if createdPhaseId and demolishedPhaseId are in order.
(Inherited from Element )
Public method IsExternalFileReference Determines whether this Element represents an external file.
(Inherited from Element )
Public method IsHidden Identifies if the element has been permanently hidden in the view.
(Inherited from Element )
Public method IsMonitoringLinkElement Indicate whether an element is monitoring any elements in any linked models.
(Inherited from Element )
Public method IsMonitoringLocalElement Indicate whether an element is monitoring other local elements.
(Inherited from Element )
Public method IsPhaseCreatedValid Returns true if createdPhaseId is an allowed value for the property CreatedPhaseId in this Element.
(Inherited from Element )
Public method IsPhaseDemolishedValid Returns true if demolishedPhaseId is an allowed value for the property DemolishedPhaseId in this Element.
(Inherited from Element )
Public method IsTextPositionAdjustable Indicates if this dimension is supported to set/get TextPosition/LeaderEndPosition.
Public method IsValidType(ElementId) Checks if given type is valid for this element.
(Inherited from Element )
Public method LookupParameter Attempts to find a parameter on the element which has the given name.
(Inherited from Element )
Public method RefersToExternalResourceReference Determines whether this Element uses external resources associated with a specified external resource type.
(Inherited from Element )
Public method RefersToExternalResourceReferences Determines whether this Element uses external resources.
(Inherited from Element )
Public method ResetTextPosition Resets the text position of the dimension to the initial position determined by its type and parameters.
Public method SetEntity Stores the entity in the element. If an Entity described by the same Schema already exists, it is overwritten.
(Inherited from Element )
Public method ToString Returns a string that represents the current object.
(Inherited from Object )
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Example 
public void GetInfo_Dimension(Dimension dimension)
{
    string message = "Dimension : ";
    // Get Dimension name
    message += "\nDimension name is : " + dimension.Name;

    // Get Dimension Curve
    Autodesk.Revit.DB.Curve curve = dimension.Curve;
    if (curve != null && curve.IsBound)
    {
        // Get curve start point
        message += "\nCurve start point:(" + curve.GetEndPoint(0).X + ", "
             + curve.GetEndPoint(0).Y + ", " + curve.GetEndPoint(0).Z + ")";
        // Get curve end point
        message += "; Curve end point:(" + curve.GetEndPoint(1).X + ", "
             + curve.GetEndPoint(1).Y + ", " + curve.GetEndPoint(1).Z + ")";
    }

    // Get Dimension type name
    message += "\nDimension type name is : " + dimension.DimensionType.Name;

    // Get Dimension view name
    message += "\nDimension view name is : " + dimension.View.Name;

    // Get Dimension reference count
    message += "\nDimension references count is " + dimension.References.Size;

    if (BuiltInCategory.OST_Dimensions == dimension.Category.BuiltInCategory)
    {
        message += "\nDimension is a permanent dimension.";
    }
    else if (BuiltInCategory.OST_Constraints == dimension.Category.BuiltInCategory)
    {
        message += "\nDimension is a constraint element.";
    }


    Autodesk.Revit.UI.TaskDialog.Show("Revit",message);
}
See Also