# PlaneToPlaneAngle3D

The PlaneToPlaneAngle3D function is used to measure the angle between two Plane3D structures. It returns the results (that is, the angle value) as an integer in the cell where the function is inserted.

## PlaneToPlaneAngle3D Inputs

The PlaneToPlaneAngle3D function has the following syntax:

PlaneToPlaneAngle3D(PointCloud,Plane3D0,ExternalPlane0,Plane3D1,ExternalPlane1,Show)

See the table for a description of the available parameters.

Parameter | Description
PointCloud | Reference to a cell containing a point cloud. The default value is $A$0.
Plane3D 0 | Specifies the offset and the angle of the first plane to use. It is offset from the PointCloud origin in the following format with the following arguments: {X, Y, Z, Tilt, TiltDirection}
X | Offset on the X-axis from the PointCloud origin.
Y | Offset on the Y-axis from the PointCloud origin.
Z | Offset on the Z-axis from the PointCloud origin.
Tilt | Specifies the tilt angle (in degrees) from the PointCloud Z-axis. The value range is 0-180. External references with values outside the allowed range will result in an error.
Tilt Direction | Specifies the direction of tilt (in degrees) from the plane's rotated PointCloud X-axis, about the tool's PointCloud Z-axis. The value range is -360 - 360. External references with values outside the allowed range will be normalized to the allowed range.
Note: This parameter is available only if External Plane 0 is set to 0.
External Plane 0 | Specifies a reference to a Rectangle3D or Circle3D structure defined in another cell to be used by the function. Set to 0 (OFF) to use the function's internal Plane3D structure instead.
Plane3D 1 | Specifies the offset and the angle of the second plane to use. It is offset from the PointCloud origin in the following format with the following arguments: {X, Y, Z, Tilt, TiltDirection}
X | Offset on the X-axis from the PointCloud origin.
Y | Offset on the Y-axis from the PointCloud origin.
Z | Offset on the Z-axis from the PointCloud origin.
Tilt | Specifies the tilt angle (in degrees) from the PointCloud Z-axis. The value range is 0-180. External references with values outside the allowed range will result in an error.
Tilt Direction | Specifies the direction of tilt (in degrees) from the plane's rotated PointCloud X-axis, about the tool's PointCloud Z-axis. The value range is -360 - 360. External references with values outside the allowed range will be normalized to the allowed range.
Note: This parameter is available only if External Plane 1 is set to 0.
External Plane 1 | Specifies a reference to a Plane3D structure defined in another cell to be used by the function as the second 3D plane. Set to 0 (OFF) to use the function's internal Plane3D structure instead.
Show | Selects the type of graphics to overlay on the image.
0 = hide all (default) | All graphics will be hidden, except when the cell containing the function is highlighted in the spreadsheet.
2 = input graphics only | The input data will be displayed at all times.

## PlaneToPlaneAngle3D Outputs

Returns | The measured angle value as an integer type.
Results | When initially inserted into a cell, the measured angle value is returned by the function.