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1.  On the [Model] tab, go to ,and click [Sphere] .
    

2. Designate the center.
   
   In the parameter input dialog box, enter Center (X: 0, Y: 0, Z: 0) and click .
   
    

3. Tips on the parameter input dialog box
   
   If the input value is nil, you don't need to enter 0 in the entry field. The blank is acceptable.
   
   Press the <Tab> key to hop around the items in the dialog box.
   Press the <Enter> key on to proceed to the next setting.
   

• Another way to input parameters is,
  instead of the numerical entry explained above,
  you may click on the target coordinates on the modeling window.
  
   

3. Set the radius
   
   Enter Radius: 5 and click .

4. Click in the parameter input dialog box and exit.
   
   A sphere has been created.

6. To zoom in or out for easy viewing, go to the [Viewpoint Operation] tool panel
   
   
   
   click [Zoom] , then swing the mouse right or left while pressing the left-click button.
   
   The view size will change.
   
   For the details, see [Viewpoint Operation].
    

5. Cut the sphere.
   
   
   
   Click [Cut] .
    

6. Select the sphere created at 4 on the modeling window.

7. Click in the parameter input dialog box.

8. Enter Point on cutting plane (X: 0, Y: 0, Z: 0) and click .

9. Enter Normal Vector of Cutting Plane (X: 0, Y: 0, Z: 1) and click .
    

9. • Select [Keep bodies in the positive normal direction only].
     Bodies not in the positive normal direction will be deleted after the cut.

10. Click in the parameter input dialog box and exit.
    
     

A hemisphere has been created.

11. Draw a circle at the bottom center, next.
    
    We select Circle at Primitives as explained below
    
    On the [Model] tab, go to and click ▼ at the side of [Sheet Body] .
    Click [Circle] on the submenu.
    
     

• The submenu is explained here
   

12. Designate the center.
    
    In the parameter input dialog box, enter Center (X: 0, Y: 0, Z: 0) and click .

13. Set the radius.
    
    Enter Radius: 1 and click .
    
     

14. Click in the parameter input dialog box and exit.
     

* Shown by wireframe

The model has been completed.

15. You can undo or redo the operation. The operations can be changed as follows;
    
    In the
    click [Undo] to undo the modeling or attribute operation.
    
    
    
    click [Redo] to redo the modeling or attribute operation.