Curve
Intersect(Curve, Intersection
|
Note: This API is now obsolete.
Calculates the intersection of this curve with the specified curve and returns the intersection results.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.0.4.0 (26.0.4.0)

[ObsoleteAttribute("This method is deprecated in Revit 2026 and may be removed in a later version of Revit. Use the new Curve.Intersect method with CurveIntersectResultOption.Detailed. Note also that the updated method has improved handling of certain edge cases.")]
public SetComparisonResult Intersect(
Curve curve,
out IntersectionResultArray resultArray
)
Parameters
- curve Curve
- The specified curve to intersect with this curve.
- resultArray IntersectionResultArray
- Provides more information about the intersection.
Return Value
SetComparisonResult- SetComparisonResult.Overlap - One or more intersections were encountered. The output argument has the details.
- SetComparisonResult.Subset - The inputs are parallel lines with only one common intersection point, or the curve used to invoke the intersection check is a line entirely within the unbound line passed as argument curve. If the former, the output argument has the details of the intersection point.
- SetComparisonResult.Superset - The input curve is entirely within the unbound line used to invoke the intersection check.
- SetComparisonResult.Disjoint - There is no intersection found between the two curves.
- SetComparisonResult.Equal - The two curves are identical.

Exception | Condition |
---|---|
ArgumentNullException | Thrown when the specified curve is . |
InvalidOperationException | Thrown when failed to calculate the intersection. |

The array of the intersection results contains one entry for each point where curves intersect.
The following is the meaning of IntersectionResult members:
- XYZPoint is the evaluated intersection point
- UVPoint.U is the unnormalized parameter on this curve (use ComputeNormalizedParameter to compute the normalized value).
- UVPoint.V is the unnormalized parameter on the specified curve (use ComputeNormalizedParameter to compute the normalized value).
