Gets or sets the 1/2 smallest angle. See for more information.
Gets the direction that the camera faces.
Gets the camera location (position) point.
Gets the camera up vector.
Gets the unit "to the right" vector.
Gets the unit "up" vector.
Gets the unit vector in -CameraDirection.
Sets the viewport's id to the value used to uniquely identify this viewport. There is no approved way to change the viewport id once it is set in order to maintain consistency across multiple viewports and those routines that manage them.
Get or set whether this projection is parallel.
Get or set whether this projection is perspective.
Gets a value that indicates whether this projection is a two-point perspective.
Tests an object to see if it is valid.
Gets a value that indicates whether the camera is valid.
Gets a value that indicates whether the frustum is valid.
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Get or set the screen port. and
Gets the screen aspect ratio. This is width / height.
The current value of the target point. This point does not play a role in the view projection calculations. It can be used as a fixed point when changing the camera so the visible regions of the before and after frustums both contain the region of interest. The default constructor sets this point on ON_3dPoint::UnsetPoint. You must explicitly call one SetTargetPoint() functions to set the target point.
Gets the amount of user strings.
true if you want the resulting frustum to be symmetric.
true if the operation succeeded; otherwise, false.
Use this function to change projections of valid viewports from parallel to perspective. It will make common additional adjustments to the frustum and camera location so the resulting views are similar. The camera direction and target point are not be changed. If the current projection is parallel and symmetricFrustum, FrustumIsLeftRightSymmetric() and FrustumIsTopBottomSymmetric() are all equal, then no changes are made and true is returned.
If RhinoMath.UnsetValue this parameter is ignored. Otherwise it must be > 0 and indicates which plane in the current view frustum should be preserved.
true if you want the resulting frustum to be symmetric.
(pass 50.0 when in doubt) 35 mm lens length to use when changing from parallel to perspective projections. If the current projection is perspective or lens_length is <= 0.0, then this parameter is ignored.
true if the operation succeeded; otherwise, false.
Use this function to change projections of valid viewports from parallel to perspective. It will make common additional adjustments to the frustum and camera location so the resulting views are similar. The camera direction and target point are not changed. If the current projection is perspective and symmetricFrustum, IsFrustumIsLeftRightSymmetric, and IsFrustumIsTopBottomSymmetric are all equal, then no changes are made and true is returned.
If RhinoMath.UnsetValue this parameter is ignored. Otherwise it must be > 0 and indicates which plane in the current view frustum should be preserved.
The locked up direction. Pass Vector3d.Zero if you want to use the world axis direction that is closest to the current up direction. Pass CameraY() if you want to preserve the current up direction.
(pass 50.0 when in doubt) 35 mm lens length to use when changing from parallel to perspective projections. If the current projection is perspective or lens_length is <= 0.0, then this parameter is ignored.
true if the operation succeeded; otherwise, false.
Changes projections of valid viewports to a two point perspective. It will make common additional adjustments to the frustum and camera location and direction so the resulting views are similar. If the current projection is perspective and IsFrustumIsLeftRightSymmetric is true and IsFrustumIsTopBottomSymmetric is false, then no changes are made and true is returned.
If border > 1.0, then the frustum in enlarged by this factor to provide a border around the view. 1.1 works well for parallel projections; 0.0 is suggested for perspective projections.
True if successful.
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1/2 smallest subtended view angle in radians.
A bounding box in 3d world coordinates.
true if the operation succeeded; otherwise, false.
If targetDistance > 0.0, then the distance from the returned point to the camera plane will be targetDistance. Note that if the frustum is not symmetric, the distance from the returned point to the camera location will be larger than targetDistance. If targetDistance == ON_UNSET_VALUE and the frustum is valid with near > 0.0, then 0.5*(near + far) will be used as the targetDistance.
A point on the frustum's central axis. If the viewport or input is not valid, then ON_3dPoint::UnsetPoint is returned.
[boolean, number, number, number, number, number, number] (boolean) true if operation succeeded; otherwise, false. (number) A left value that will be filled during the call. (number) A right value that will be filled during the call. (number) A bottom value that will be filled during the call. (number) A top value that will be filled during the call. (number) A near distance value that will be filled during the call. (number) A far distance value that will be filled during the call.
The coordinate system to map from.
The coordinate system to map into.
The 4x4 transformation matrix (acts on the left).
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A new left value.
A new right value.
A new bottom value.
A new top value.
A new near distance value.
A new far distance value.
true if operation succeeded; otherwise, false.
If bUseFrustumCenterFallback is false and the target point is not valid, then ON_UNSET_VALUE is returned. If bUseFrustumCenterFallback is true and the frustum is valid and current target point is not valid or is behind the camera, then 0.5*(near + far) is returned.
Shortest signed distance from camera plane to target point. If the target point is on the visible side of the camera, a positive value is returned. ON_UNSET_VALUE is returned when the input of view is not valid.
StaticdecodeA json formatted object in the following format (values are orientative):
{
version: 10000,
archive3dm: 60,
opennurbs: -1877964208,
data: 'encoded 3dm object data'
}
Staticdefault...
Staticdefault...
This property assumes the camera is horizontal and crop the film rather than the image when the aspect of the frustum is not 36/24. (35mm film is 36mm wide and 24mm high.) Setting preserves camera location, changes the frustum, but maintains the frustum's aspect.