Namespace: Autodesk.Revit.DB

ElementIsCurveDrivenFilter

Class

Description:
A filter used to match elements which are curve driven.

Remarks:
The term "curve driven" indicates that the element's Location property is a LocationCurve. Example elements found by this filter include walls, beams, and curve elements. This filter is a quick filter. Quick filters operate only on the ElementRecord, a low-memory class which has a limited interface to read element properties. Elements which are rejected by a quick filter will not be expanded in memory.

Inheritance Hierarchy:
System.Object
  Autodesk.Revit.DB.ElementFilter
    Autodesk.Revit.DB.ElementQuickFilter
      Autodesk.Revit.DB.ElementIsCurveDrivenFilter

Syntax

public class ElementIsCurveDrivenFilter : ElementQuickFilter

Public Class ElementIsCurveDrivenFilter
	Inherits ElementQuickFilter

public ref class ElementIsCurveDrivenFilter : public ElementQuickFilter

type ElementIsCurveDrivenFilter = 
    class
        inherit ElementQuickFilter
    end

Examples

// Create an ElementIsCurveDriven filter to find slanted columns(which is curve-driven) in the document,
// The term "curve driven" indicates that the element's Location property is a LocationCurve
ElementIsCurveDrivenFilter filter = new ElementIsCurveDrivenFilter();

// Apply the filter to the elements in the active document,
// Use the ElementIsCurveDrivenFilter on columns to find only slanted columns (vertical columns 
// are placed at a single point).
FilteredElementCollector collector = new FilteredElementCollector(document);
ICollection<Element> slantColumns = collector
    .WherePasses(filter).OfCategory(BuiltInCategory.OST_StructuralColumns).ToElements();

// Find elements of not curve driven: use inverted filter to match elements
ElementIsCurveDrivenFilter notCurveDrivenFilter = new ElementIsCurveDrivenFilter(true); // inverted filter
collector = new FilteredElementCollector(document);
ICollection<Element> notCurveDrivenFounds = collector.WherePasses(notCurveDrivenFilter).ToElements();

' Create an ElementIsCurveDriven filter to find slanted columns(which is curve-driven) in the document,
' The term "curve driven" indicates that the element's Location property is a LocationCurve
Dim filter As New ElementIsCurveDrivenFilter()

' Apply the filter to the elements in the active document,
' Use the ElementIsCurveDrivenFilter on columns to find only slanted columns (vertical columns 
' are placed at a single point).
Dim collector As New FilteredElementCollector(document)
Dim slantColumns As ICollection(Of Element) = collector.WherePasses(filter).OfCategory(BuiltInCategory.OST_StructuralColumns).ToElements()

' Find elements of not curve driven: use inverted filter to match elements
Dim notCurveDrivenFilter As New ElementIsCurveDrivenFilter(True)
' inverted filter
collector = New FilteredElementCollector(document)
Dim notCurveDrivenFounds As ICollection(Of Element) = collector.WherePasses(notCurveDrivenFilter).ToElements()

ElementIsCurveDrivenFilter Class Members:

Name	Description	Inherited From
ElementIsCurveDrivenFilter()	Constructs a new instance of a filter to match only curve driven elements.
ElementIsCurveDrivenFilter(Boolean)	Constructs a new instance of a filter to match only curve driven elements, with the option to match all elements which are not curve driven elements.

Name	Description	Inherited From
Inverted	True if the results of the filter are inverted; elements that would normally be accepted by this filter will be rejected, and elements that would normally be rejected will be accepted. (Inherited from ElementFilter )	ElementFilter
IsValidObject	Specifies whether the .NET object represents a valid Revit entity. (Inherited from ElementFilter )	ElementFilter

Name	Description	Inherited From
Dispose	(Inherited from ElementFilter )	ElementFilter
Equals	Determines whether the specified object is equal to the current object. (Inherited from Object )	Object
GetHashCode	Serves as the default hash function. (Inherited from Object )	Object
GetType	Gets the Type of the current instance. (Inherited from Object )	Object
PassesFilter(Element)	Applies the filter to a given element. (Inherited from ElementFilter )	ElementFilter
PassesFilter(Document, ElementId)	Applies the filter to a given element. (Inherited from ElementFilter )	ElementFilter
ToString	Returns a string that represents the current object. (Inherited from Object )	Object