• Ref. Geometry >> Create >> Coordinate >> Pick Origin & Input Rotation command creates a reference coordinate from a selected( picked ) point on a shell and a rotation angle specified by a user..

Step   

Execute Ref. Geometry >> Create >> Coordinate >> Pick Origin & Input Rotation command as follows:

1. Select Ref. Geometry >> Create >> Coordinate >> Pick Origin & Input Rotation from the menu or click the corresponding icon from the Reference toolbar.

2. Select( Pick ) a point on shell to be the origin.( See Selecting point )

During picking points,  User can select point entity on RMB menu as below fig.

 

Point : Any point on polygon face

Vertex : Scanned point

Ref.Point : User made Ref.Point 

Point On Surface : any point on NURBS surface

Point On Curve : any point on NURBS Curve

3. The following dialog box appears.

 

Type the rotation angles of the coordinate to be added in the Input Rotation Value field. The Preview button shows you the result before actually executing this command. If a user selects Use Local Coordinate option, the following message appears.

If a user selects a coordinate after pressing OK button, the rotation value is based on the selected coordinate. If he/she clicks Preview or OK  button without selecting any coordinate, the following message appears.

4. Press OK to complete this operation if the result of Preview is right.

• Point on Surface option cannot be applied to surfaces without mesh or if rendering never been executed once. Because picking point algorithm uses rendering information. So Point on Surface option can be applied to TRUE COLOR display mode with rendering information only.