Preparing the part

• creation of a curve defining a symmetry plane,
• creation of a surface tangent to the mesh,
• definition of reconstruction zones. 

Create the curve defining the symmetry plane:

1. Click Planar Sections and select the mesh.

2. Select the xy plane, type 1 for the number of sections.
   Move the plane slightly upwards until a complete scan is visible. 
   Click Apply, the scan is computed, PlanarSections.1 is displayed in the specification tree.
   

3. Press to create curves. The Curve from Scan dialog box is displayed.
   A curve is computed. Its segmentation is displayed, and Curve.1 is displayed in the specification tree.
    
   

4. Set the parameters in the Curve from Scan dialog box to your needs and
   pick the requested points on the computed curve to split it into several smaller curves.
   The first segmentation proposed is erased and the splitting points are displayed. 
   

5. Click Apply in the Curve from Scans dialog box: the curves are computed.
   Their segmentation is displayed as well as the gaps between the curves and the mesh.
   If necessary, pick on a green square to remove this split point,
   and pick another point of the scan to create a new split point.
   Click Apply to take those modifications into account. 

6. If necessary, click   to check the quality of the curves created.
   

7. Once you are satisfied, click OK to validate the curves.
   The Curve.1 to Curve.10 elements are created in the specification tree. 

8. If you wish, you can change the color of those curves using the Edit/Properties menu.

Create a tangent surface around the mesh:

1. Click Join and select the curves on the screen.
   Change the merging distance to 0.01mm. Click OK. 
   The Join.1 element is created in the specification tree.
   

2. Click Translate and select Join.1 Enter the z axis for Direction and -15 mm for Distance.
   

3. Click Preview and OK. The Translate.1 element is created in the specification tree.
   

4. Click Multi-sections Surface . Select Join.1 and Translate.1. Click Preview and OK.
   
   
   Multi-sections Surface.1 is created in the specification tree.

Define reconstruction zones on the mesh:

1. Click Plane to create planes through 3 points using
   split points of step 1 and their counterpart on Translate.1:
   

2. Click Planar Sections . Select the mesh. 

3. Click Plane in the dialog box and select one of the plane you have created.
   Enter 1 in the Number field. Create a curve as above. Repeat this step for each plane.
   Curve.11 to Curve.16 are created in the specification tree.

4. Click 3D Curve and create curves as follows:
   

3D Curve.16 to 3D Curve.21 are created in the specification tree.