To Display Frozen Surfaces
Click 
on the Graphics toolbar. The frozen surfaces in the imported feature are displayed. The icon 
representing a frozen surface is displayed on the surface to indicate that the surface is frozen. This option is only available only if you have an active component or surface subset of a component.
on the Graphics toolbar. The frozen surfaces in the imported feature are displayed. The icon representing a frozen surface is displayed on the surface to indicate that the surface is frozen. This option is only available only if you have an active component or surface subset of a component. | Click again if you do not want to display the frozen surfaces. |
When you move the pointer over , Import DataDoctor displays a message indicating why the surface is frozen. A surface is frozen for one of the following reasons:
, Import DataDoctor displays a message indicating why the surface is frozen. A surface is frozen for one of the following reasons:• You have frozen the surface using > 
Freezing > Freeze.
Freezing > Freeze.• The surface is analytical.
• The surface has more than four sides.
• All the boundaries of the surface are isolines.
| | A frozen spline surface may have tangency conditions for one or more of its boundaries. In this case, the repair algorithm may modify the surface locally. |