# PointToPointDistance3D

The PointToPointDistance3D function is used to measure the distance between two Point3D structures. It returns the results (that is, the calculated distance) as an integer in the cell where the function is inserted.

## PointToPointDistance3D Inputs

The PointToPointDistance3D function has the following syntax:

PointToPointDistance3D(PointCloud,Point3D0,ExternalPoint0,Point3D1,ExternalPoint1,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.
Point3D 0 | Specifies the offset of the first 3D point to use. It is offset from the PointCloud origin in the following format with the following arguments: {X, Y, Z}
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.
Note: This parameter is available only if External Point 0 is set to 0.
External Point 0 | Specifies a reference to a Point3D structure defined in another cell to be used as the first 3D point to check. Set to 0 (OFF) to use the function's internal Point3D structure.
Point3D 1 | Specifies the offset of the second 3D point to use. It is offset from the PointCloud origin in the following format with the following arguments: {X, Y, Z}
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.
Note: This parameter is available only if External Point 1 is set to 0.
External Plane | Specifies a reference to a Point3D structure defined in another cell to be used as the second 3D point to check. Set to 0 (OFF) to use the function's internal Point3D 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.

## PointToPointDistance3D Outputs

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