Fundamentals > Creo Parametric User Interface > The View Tab > Cross Sections > Creating Cross Sections > About Zone Cross Sections
About Zone Cross Sections
Zone cross sections are 3-dimensional cross sections created by defining zones. The zones contain the same functionality as normal zones. To make large models more manageable, you can define specific regions called "zones" within a model. You can use zones to:
Organize a model.
Control view clipping.
Select components in an assembly for a simplified representation.
Create component display states.
Define envelope parts.
You can use the Section tool to create cross sections by defining zones. You can give each cross section a name and store it with the part or assembly. In addition, you can show cross-hatching and view clippings through zone boundaries which remain with the model.
You can define a zone using planar references, for example datum planes or surfaces. These references can come from any level of the part or assembly. You can define the datum planes while you create a zone, or use existing datum planes or surfaces. You can use planar references to define a zone to include everything on one side of the reference. This side is a "half-space" of the datum plane. You can combine any number of half-spaces. However, if you use more than 6 half spaces, view clipping is not available.
You can also define a zone by specifying offset distances from a coordinate system. Additionally, in Assembly, you can define a zone by using closed assembly feature surfaces, or by specifying a distance from an entity.
When you create a zone cross section, Creo Parametric places it in the Regeneration Footer of the Model Tree. However, if you create datum planes while creating a zone cross section, then Creo Parametric groups the zone cross section along with the datum planes. This group is directly placed in the Model Tree as a feature and not in the Regeneration Footer. If you want to move the zone cross section to the Regeneration Footer, you must first ungroup the zone cross section and the datum planes that were grouped earlier, and then drag the zone cross section to the regeneration footer.
* You can move a zone cross section to the Regeneration footer but you cannot move it outside the Regeneration footer
Creo Parametric includes components in zones as follows:
If a component lies in more than one zone, Creo Parametric includes it in both zones.
If a zone intersects a component’s bounding box, Creo Parametric includes it in that zone.