Copyright Goodheart-Willcox Co., Inc. Chapter 14 Model Documentation, Analysis, and File Exchange 373 Section Object States There are four possible states for the section object created by the SECTIONPLANE command—section plane, section slice, section boundary, and section volume. See Figure 14-32. The section object can be changed from one state to another. As previ- ously discussed, the Type option can be used to set the section object state when using the SECTIONPLANE command. Depending on which state is active, the section object produces different results on the 3D model. To change the section object state, select the section object and then select an option from the Section Type drop-down list in the Modify panel in the Section Plane contextual ribbon tab. You can also pick the triangular menu grip on the section object to access the options, as discussed later in this chapter. When the section object is created with the Type option set to Plane, the object is in the section plane state. This is the default setting. A transparent plane is displayed on each segment of the section object. The transparent plane is called the section plane indicator. A line called the section line connects the pick points (or the edges of the section object). The section plane extends infi nitely in the section object’s Z direction and along the direction of the object segment (unless connected to other segments). A section object with the section plane state active is shown in Figure 14-32B. The section slice state creates a thin cut (slice) through the 3D model. See Figure 14-32C. A 2D box enclosing the sectioned object represents the thickness of the slice. To set the section slice state when creating the section object, set the Type option to Slice. To change the thickness of the slice, select the section object and change the value in the Slice Thickness text box in the Adjust panel in the Section Plane contex- tual ribbon tab. When the section object is in the section boundary state, a transparent plane is displayed on each segment of the section object. A 2D box extends to the XY-plane boundaries of the section object. See Figure 14-32D. The sectioned object fi ts inside of this footprint. The section plane extends infi nitely in the section object’s Z direction. To set the section boundary state when creating the section object, set the Type option to Boundary. A B D E C Figure 14-32. Section object states. A—The original object. B—Section plane. C—Section slice. D—Section boundary. E—Section volume.