Constructs a new ViewOrientation3D using the input eye position, up and forward directions.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0)
Syntax
C#
public ViewOrientation3D( XYZ eyePosition, XYZ upDirection, XYZ forwardDirection )
Parameters
- eyePosition XYZ
- The eye position
- upDirection XYZ
- The up direction. This vector will be normalized. Up direction must be perpendicular to the forward direction.
- forwardDirection XYZ
- The forward direction. This vector will be normalized. Forward direction must be perpendicular to the up direction.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentException | One or both of the input vectors cannot be normalized. |
| ArgumentNullException | A non-optional argument was null |
| ArgumentOutOfRangeException | upDirection has zero length. -or- forwardDirection has zero length. |
| ArgumentsInconsistentException | The vectors upDirection and forwardDirection are not perpendicular. |