Revit Secondary Development: Creating Adaptive Component Families

The adaptive component family offers powerful features and is highly practical for bridge modeling.

Key classes and methods for working with adaptive families include:

• AdaptiveElementInstanceUtils
• Creating an adaptive family instance: CreateAdaptiveComponentInstance
• Getting the adaptive point IDs: GetInstancePlacementPointElementRefIds
• Adaptive point position: Position
• Associating adaptive points with elements: SetPointElementReference

Below is a sample code snippet demonstrating how to use these functionalities:

bool modelCurveLoaded = revitDoc.LoadFamilySymbol(
    TempFamily.FamilyPath_first,
    System.IO.Path.GetFileNameWithoutExtension(TempFamily.FamilyPath_first),
    out familySymbol);  // Load the family symbol

familySymbol.Activate();  // Activate the family type

famIns1 = AdaptiveComponentInstanceUtils.CreateAdaptiveComponentInstance(revitDoc, familySymbol);  // Instantiate adaptive family

IList<ElementId> placePointIds = AdaptiveComponentInstanceUtils.GetInstancePlacementPointElementRefIds(famIns1);

ReferencePoint point = revitDoc.GetElement(placePointIds[0]) as ReferencePoint;  // Get the adaptive point

point.Position = modelCurve.GeometryCurve.GetEndPoint(0);  // Set the adaptive point position

PointLocationOnCurve pointLocationOnCurve00 = new PointLocationOnCurve(
    PointOnCurveMeasurementType.NormalizedCurveParameter, 0, PointOnCurveMeasureFrom.Beginning);

PointOnEdge poe00 = revitApp.Create.NewPointOnEdge(modelCurve.GeometryCurve.Reference, pointLocationOnCurve00);  // Create a point on the model curve

point.SetPointElementReference(poe00 as PointElementReference);  // Associate adaptive point with the model curve

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