Creating a Section

From the Review section of the action bar, click Sectioning .
A number of elements are available to define the section:
- A plane appears at the center of the bounding box of the cut elements.
  By default, it cuts the geometry completely, however you can also resize and move it manually.
- Translation handles enable you to translate the plane.
- The Robot snapped at the center of the plane enables you to rotate and translate the plane in the X, Y and Z directions.
- You can use the rulers to set the precise location for the section plane during translate and rotational movements. The rulers appear when you move the plane. You can specify the value for positioning the plane.
- A context toolbar is available to customize the section visualization.
- An Opacity slider is also available to modify the opacity of the products to analyze the section result more clearly and easily.
  Note: For a better rendering, use the Shading (SHD) or Shading with Material.
- The information consisting of section name, section plane center co-ordinates, width and height of the section plane, offset in case of slice and box mode appears in the 3D area.
Notes:
- If you do not want to select the whole product, you can select objects or modify the selection using the Ctrl key directly in the scene or in the tree. You can do it before or during the sectioning.
- You can select an existing persistent measure between feature in the tree or in the 3D area before clicking the Sectioning command. The section plane is created such that it is parallel to the direction of the measure dimension line and its center is placed at the midpoint of the measure dimension line. The axes of the section plane are as below:
  The u-axis is along the component directions of the measure dimension line.
  The w-axis is a cross product of the u-axis and the z-axis of the principle axis system.
  The v-axis is a cross product of the u and w axes.
Move the section plane to define your section cut.
To move the section plane, you can use:
- The handle, that is the arrow symbol which, as you move it either forward or backward, results in the section plane cutting the geometry.
- The Robot.
On the context toolbar, customize the section visualization.
1. Click Display the contour and the grid of the section .
  The grid is displayed.
2. Click Change the grid lines style as Lines or Cross.
  The grid style is changed from lines to cross.
3. Click Edit the number of lines of the grid to edit the U and V spacings of the grid.
  You can select the Automatic Filtering check box to automatically adjust the grid lines, when you perform a zoom in or a zoom out in Secondary Viewer.

To position the section plane, click one of the following on the context toolbar,

Option	Description
Move the section plane to the X position	Positions the section plane normal to the x-axis.
Move the section plane to the Y position	Positions the section plane normal to the y-axis.
Move the section plane to the Z position	Positions the section plane normal to the z-axis.
Specify the position of the section plane precisely	Lets you define precisely the position of the section precisely, by selecting either of the following: A plane: the section is positioned on the plane. Two coplanar lines: the section is positioned on the plane formed by the lines. A line and a point: the section is positioned on the plane formed by the line and the point. Three points: the section is positioned on the plane formed by the points.
Select the geometry to position the section plane along	Lets you select an edge or a surface to position a section.
Edit Position And Dimension Panel	The various options in the panel lets you do the following: Reposition the section plane. Translate and rotate the section plane. Edit the dimensions (width, height, and thickness) of the section plane. Edit the thickness (offset between planes) for the slice or box type section. You can undo and redo up to 20 last operations using the buttons provided in the panel.
Restore the original position of the section plane	Resets the section to its original position.

Click Switch between Auto Update, Manual Update and Freeze Mode on the context toolbar. Depending on whether the section is to be updated automatically or manually, or kept as it is, click any of the following:
- Switch to Auto Update Mode
- Switch to Manual Update Mode
- Switch to Freeze Mode
On the context toolbar, click Validate the Section .
The section is created and listed as Section.x under the Notes node in the tree.
Optional: Click Sectioning again.
The section plane appears.
Note: The default section plane position depends on the viewpoint.
To edit an existing section, do either of the following:
- Double-click the section in the tree or the plane contours in the geometry.
- Right-click the Section.x in the tree or the section plane contours in the geometry, and select [section_name]object > Definition.
Optional: To select a predefined plane during the section creation, click Select Predefined Plane on the context toolbar.
The Select Predefined Plane dialog box appears.
Optional: In the dialog box,
1. In the System list, select the required plane system.
2. In the Plane list, select the required plane.
3. In the Offset list, select the required offset plane.
  Note: Offset list appears, only if you select Display a slice or Display a box option on the context toolbar.
4. Click OK.
Note: When you create a section using predefined plane option, the name of the section plane is visible instead of the section name in the work area.

Important:

You can edit sections after they have been created.
You cannot undo or redo sectioning operations.
Only last six created sections are active.
Unloaded objects are not sectioned in the 3D area as well as in the secondary viewer.

Warning: A mask (

) appears on:

The slide's thumbnail and the slide feature in the tree, when an overloaded object in the slide is unavailable in the session.
The section and compare features in the tree, when any of the pointed objects is unavailable in the session.

An object is not available if:

The concerned object is unloaded.
The concerned object is deleted from the product context.
The pointed object is replaced.

The mask disappears if the object is reloaded or if the links are fixed.