### 10.1.6. Parts - New - Define Zoning (3D Shell)

This window lets you Define the zoning for your Shell Part.

**Plane**

**Cells**The number of cells (elements) you want to use in
the X, Y, Z directions. The corresponding number of nodes and elements
required for your part will be displayed below.

**Grade zoning**Check the boxes if you want to grade your zoning in
any direction.

If you choose this option you can specify
a range of cells which have a fixed size. The remaining cells will
be smoothly graded to fit the overall dimension of the box you specified
in the previous window.

**Fixed size**The dimension you want to use
for the fixed size cells.

**Times**The number of fixed size cells you
want to use.

**Position**Specify where you want to place
the fixed size cells relative to the full I/J/K range.

**Centered**At the center of the full I/J/K range.

**Lower**At the lower end of the I/J/K range.

**Upper**At the upper end of the I/J/K range.

**Cylinder**

**Cells about circumference**The number of cells (elements) you want to use about
the circumference of your cylinder.

**Cells along length**The number of cells (elements) you want to use along
the length of your cylinder.

**Number of elements**Displayed below the above two input fields is the
index space that will be used for your Part and the number of nodes
and elements required.

**Grade zoning along length**Check this box if you want to grade the zoning along
the length of your cylinder (you will be asked to specify a **starting increment** to use).