00

01

02

03

04

05

06

07

08

09

1. On the [Model] tab, go to and click ▼ at the side of [Sheet Body] .
   Click [Circle] on the submenu.

2. Let's 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
   
   In case 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.
   

4. 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: 3 and click .

A circle has been created.

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

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

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

   • It is also possible to exit with the <Esc> key.
      

Two circles have been created.

7. To zoom in or out for easy viewing, go to the [Viewpoint Operation] tool panel
   
   
   
   and 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].
    

7. You can undo or redo the operation. The operations can be changed as follows;
   
   On the [Model] tab, go to
   
   
   
   and click [Undo] to undo the modeling or attribute operation.
   
   and click [Redo] to redo the modeling or attribute operation.