Hatching Rule Attributes

The Hatching Rule attributes give you more control over which surfaces of an element are hatched.

1. The Hatching Rules Attributes form is displayed when you press the Attributes button on the Hatching Representation Rules form.

   

2. Pressing the Plot button on the Hatching Rule Attributes form will display the Hatching Rule Attributes Plot form which illustrates the Hatching Rule Attributes.

   Hatching rules can Consider:

   • Only Sectioned Surfaces, which means only surfaces cut by a section plane

   • All Primitive Surfaces, which means that the element need not be cut by a section plane to be hatched.

     The Rule can be further refined by the Hatching options:

   • All Surfaces in All Directions means all surfaces meeting the initial criteria.

   • Only Surfaces Perpendicular to the View Direction ‑ example, if the view direction is north then the south face of the element will be hatched, assuming it meets the initial criteria.

   • Only Surfaces Facing in a Specified Direction means that the user can specify a direction normal to the surface to be hatched, instead of using the view direction. An example of this is a box shown in an isometric view with the top surface cross-hatched. If six surfaces of a box were required to have different hatching styles then this option would be used on six Hatching Rules.

     The Direction and Derived gadgets are active when Only Surfaces Facing in a Specified Direction is chosen. If you press Derived, you will be prompted to pick a Design element.