To Set the View Visibility of an Unfolded Section
1. Open a drawing.
2. Double-click a drawing view. Alternatively, select the view, right-click the view and click Properties. The Drawing View dialog box opens.
3. Under Categories click Sections.
4. Under Section options, click 2D cross-section.
5. Click
to add a 2D cross section.
6. Select an existing 2D cross section in the Name list. Alternatively, click Create New in the Name list to create a new 2D cross section.
7. Select Full(Unfold) or Full(Aligned) in the Sectioned Area list.
8. Click Apply.
9. Click Visible Area in the Categories list and select one of the following options in the View visibility list.
◦ Full View—Sets full view visibility.
◦ Half View—Sets half view visibility. You must select a reference plane on the selected general drawing view to specify the half view reference plane. For a section with Model edge visibility option set to Total, select the reference plane within the section view in the graphics window.
◦ Partial View—Sets partial view visibility. You must click the reference point in the geometry collector and select a reference point on the selected general drawing view. Click the Spline boundary collector and define the boundary of the partial view.
◦ Broken View—Sets broken view visibility. You must click
to add breaks. Click the
1st Break Line collector and create a break line. Additionally, click the
2nd Break Line collector and create a break line.
|  Ensure that both break lines are either horizontal or perpendicular. |
10. Click OK.
Note the following restrictions when creating an unfolded section with broken view visibility:
• The unfolding direction of the section must be parallel to one of the side edges of the view boundary or view frame.
• Break lines of breaks parallel to the unfolding direction must pass through all sections.
• Break lines of breaks perpendicular to the unfolding direction can pass through only one section.