Creates a GR-Plane feature that dynamically builds a plane from the associated points.
Plane Features report the following criteria:
Flatness Which reports the Max - Min deviation with respect to the RMS fit plane. This is a number that is fast to compute for a dynamic feature and slightly overestimates a traditional GD&T flatness check.
Centroid X, Y, Z. Which reports the planes origin point in the current working frame.
I, J, K. Which reports the direction of the plane in 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 plane.
Avg. Distance Between . Which reports the average distance between the measured extents of the plane and the nominal plane.
RMS. Which reports that RMS of the measured plane.
Plane 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-Plane feature. These include both the origin point and a point on the nominal vector.
Combined Operations
Prepare to Projection Plane. This option both builds a GR- Plane feature and sets the measured plane from it as the active projection plane as part of the build process.
Prepare to Clipping Plane. This option both builds a GR-Plane feature and sets the cloud clipping plane from it as the active clipping plane as part of the build process.
Dynamic Planes
The following additional dynamic planes can also be created:
Note that both cone intersections and cone cylinder intersections require special consideration. Additional notes on how these features are computed can be found here.
Offset Plane. Builds a dynamic plane that is offset by a user selected amount from a reference plane (or the XY plane of a reference object). The plane then dynamically maintains that offset distance.
Bisect Two Planes. Computes and builds a plane that is the bisection or average of the two selected planes. Note that the bisection plane uses the normal direction of the two input planes. This means that when the two planes that are nearly parallel and the same direction the resulting plane will also be nearly parallel between them. But if they are the opposite direction relative to each other, the result will be nearly 90 degrees to the inputs. Within the Plane Fit Settings is a Reverse Solution option to reverse the correct this.
Two Cone Intersection Options. Computes and builds a plane from the intersection of two cones. Options are available to control the resulting plane normal direction.
Cone and Cylinder Intersection Options. Computes and builds a plane from the intersection of a cone and a cylinder. Options are available to control the resulting plane normal direction.
Note - More details on the computation process for Intersections can be found here.