ElementIsCurveDrivenFilter

Public Class

A filter used to match elements which are curve driven.

Inheritance Hierarchy

System.Object
Autodesk.Revit.DB.ElementFilter
Autodesk.Revit.DB.ElementQuickFilter
Autodesk.Revit.DB.ElementIsCurveDrivenFilter

Namespace: Autodesk.Revit.DB

Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public class ElementIsCurveDrivenFilter : ElementQuickFilter

The ElementIsCurveDrivenFilter type exposes the following members.

Constructors

Name

Description

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Public Method
ElementIsCurveDrivenFilter.

Constructs a new instance of a filter to match only curve driven elements.

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Public Method
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.

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Properties

Name

Description

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Public Property

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)

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Public Property
IsValidObject

Specifies whether the .NET object represents a valid Revit entity.
(Inherited from ElementFilter)

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Methods

Name

Description

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Public Method

Dispose

(Inherited from ElementFilter)

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Public Method

Equals

Determines whether the specified object is equal to the current object.
(Inherited from Object)

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Public Method

GetHashCode

Serves as the default hash function.
(Inherited from Object)

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Public Method

GetType

Gets the Type of the current instance.
(Inherited from Object)

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Public Method

PassesFilter(Element)

Applies the filter to a given element.
(Inherited from ElementFilter)

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Public Method

PassesFilter(Document, ElementId)

Applies the filter to a given element.
(Inherited from ElementFilter)

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Public Method

ToString

Returns a string that represents the current object.
(Inherited from Object)

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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.

Example

// 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();