# LineToLineAngle3D

The LineToLineAngle3D function is used to measure the angle between two Line3D structures. It returns the results (that is, the angle value) as an integer in the cell where the function is inserted.

## LineToLineAngle3D Inputs

The LineToLineAngle3D function has the following syntax:

LineToLineAngle3D(PointCloud,Line3D0,ExternalLine0,Line3D1,ExternalLine1,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.
Line3D 0 | Specifies the offsets of the first 3D line. It is offset from the PointCloud origin in the following format with the following arguments: {X0, Y0, Z0, X1, Y1, Z1}
X0 | Offset of the 3D line's starting point on the X-axis from the PointCloud origin.
Y0 | Offset of the 3D line's starting point on the Y-axis from the PointCloud origin.
Z0 | Offset of the 3D line's starting point on the Z-axis from the PointCloud origin.
X1 | Offset of the 3D line's ending point on the X-axis from the PointCloud origin.
Y1 | Offset of the 3D line's ending point on the Y-axis from the PointCloud origin.
Z1 | Offset of the 3D line's ending point on the Z-axis from the PointCloud origin.
Note: This parameter is available only if External Line 0 is set to 0.
External Line 0 | Specifies a reference to the first Line3D structure defined in another cell. Set to 0 (OFF) to use the function's internal Line3D structure.
Line3D 1 | Specifies the offsets of the second 3D line. It is offset from the PointCloud origin in the following format with the following arguments: {X0, Y0, Z0, X1, Y1, Z1}
X0 | Offset of the 3D line's starting point on the X-axis from the PointCloud origin.
Y0 | Offset of the 3D line's starting point on the Y-axis from the PointCloud origin.
Z0 | Offset of the 3D line's starting point on the Z-axis from the PointCloud origin.
X1 | Offset of the 3D line's ending point on the X-axis from the PointCloud origin.
Y1 | Offset of the 3D line's ending point on the Y-axis from the PointCloud origin.
Z1 | Offset of the 3D line's ending point on the Z-axis from the PointCloud origin.
Note: This parameter is available only if External Line 1 is set to 0.
External Line 1 | Specifies a reference to the second Line3D structure defined in another cell. Set to 0 (OFF) to use the function's internal Line3D structure.
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.

## LineToLineAngle3D 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.