Interface > Working with Data Exchange Formats > Creo Elements/Direct > Importing Parts and Assemblies > About Importing the Cross-Sections of Creo Elements/Direct Models
  
About Importing the Cross-Sections of Creo Elements/Direct Models
When you import Creo Elements/Direct part and assembly models, the clipping features that are owned by the part and assembly models and referred by the docuplanes are transferred as cross-sections.
Clipping features are stored with the part and assembly models when the clipping features are assigned owners. They can section parts. Creo Elements/Direct part and assembly models can contain single or multiple clipping features. Each clipping feature can contain a single clipping plane or a maximum of six clipping planes that are positioned relative to the model. When you dynamically move the models with clipping features, the clipping planes also move and let you view inside the part or assembly models.
Clipping features with single clipping planes are imported as planar cross-sections. Clipping features with more than single clipping planes create zonal cross-sections. Each clipping feature imports as a zonal cross-section and is added to the footer of the Model Tree.
Docuplanes of type section that show a sectioned view of the part and assembly models are also imported as planar cross-sections. The planar cross-sections are placed in the sections folder of the Model Tree. Clipping planes and the clipping directions of the planar cross-sections, irrespective of whether you flipped the clipping directions, are retained after the import of the Creo Elements/Direct part and assembly models. The clipping directions of the planar cross-sections are transferred as a property of the combined states with which the cross-sections are associated.
 
* When you map clipping features with single clipping planes to planar cross-sections, you can include or exclude components at the assembly level from the planar cross-sections. You cannot include or exclude component data from zonal cross-sections that are created from clipping features.
In addition to planar and zonal cross-sections, the clipping features of the Creo Elements/Direct part and assembly models also create combined states. The view orientation states are not created as the clipping features do not have their own orientation. However, the cross-sections are displayed and the combined states reference the cross-sections.
The combined states contain annotations when the docuplanes that the clipping features reference are attached to annotations. You can attach the labels of annotations to docuplanes. Docuplanes are virtual planes in 3D space and are basically display planes with which you can position annotations. Docuplanes are saved with the owning part or assembly models.