Creates a GR-Ellipse feature that dynamically builds a ellipse from the associated points.
Ellipse Features report the following criteria:
Major Diameter. Which is the largest distance across a ellipse.
Minor Diameter. Which is the smallest distance across a ellipse.
Origin X, Y, Z. Which reports the origin point in the current working frame.
Mag XYZ. Reports the absolute distance between the measure and nominal ellipse centers.
I, J, K. Which reports the direction of the ellipsein the working frame.
Projected Angles (Rx from Y, Ry from Z, Rz from X). Report the relative projections of the normal vector onto the corresponding nominal planes.
Angle Between . Which reports the angle between the nominal and measured ellipse.
RMS. Which reports that RMS of the measured ellipse.
Ellipse Fit Settings include the following specific considerations:
Nominal Direction The nominal direction of the plane can be adjusted using the Reverse normal Vector option. The normal vector can also be set dynamically to match the nominal line using the Align with Nominal check box. This ensures the Angle Between value reported is always the smallest possible angle.
Cardinal Points Two cardinal points can be built using the GR-Ellipse feature. These include both the origin point and a point on the nominal vector, which is shifted a distance of the circle radius upward.
The following additional Intersection ellipse can also be created, provides greater detail on the construction methods:
Cylinder and Plane Intersection (options). Builds a Ellipse from the intersection of a cylinder and a plane based on the selected method.
Cone and Plane Intersection Options. Builds a Ellipse based upon the intersection of a cone and a plane based on the selected method.
Note - More details on the computation process for Intersections can be found here.