Create drawings from models (Creo Elements/Direct Annotation) > Draw section lines
  
Draw section lines
To draw section lines,
1. Click Annotation and then, in the Setup group, click the arrow next to Dep View.
2. Click Create Section View. The Section View dialog box opens.
3. Select the parent view in the viewport to activate the Section Line button.
When the Section Line button becomes active, right-click the viewport to display the options you can use to draw the section line. You can draw a single line or a polygonal line composed of connected segments.
To draw a section line,
1. Right-click the viewport to display the section line commands.
2. Click one of the options for drawing lines, described below (the default is Two Points).
3. Click the first point of the line. Note that the drawing line option returns to Two Points after each point designation.
4. Click further drawing line options or continue clicking points on the line.
5. When you are finished, click Accept Section Line in the Section View dialog box.
The following list explains the drawing options available.
Two Points
Creates a line segment between any two points.
Horizontal
Creates a horizontal line segment.
Vertical
Creates a vertical line segment.
Parallel To
Creates a line segment that is parallel to another line.
Perpend To
Creates a line segment that is perpendicular to another line.
You can draw a continuous chain of line segments. Graphical feedback of the section line remains attached to the cursor until you click Accept Section Line.
When the Temporary Auxiliary Lines switch (in the Default Settings browser under Annotation > View > Section > Temporary Auxiliary Lines is activated, Creo Elements/Direct Annotation draws red vertical and horizontal construction lines through the centers of all circles on the parent view. These temporary lines are similar to the auxiliary guidelines that appear when you position views, and can be helpful as you draw a section line. The lines are removed when you click Accept Section Line. (Note that this option has no effect if there are no circles in the parent view.)
You can also remove parts of the section line as you build it:
Click Back to undo the last specified point on the line.
Click Remove to delete an unwanted line segment.