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NOTE The second example above is exactly that, an example. In reality, a
classification definition to classify objects based on phasing might better be defined
to apply to all object types.
Best Practices for Classification Definitions:
■ While it is possible to classify objects on a “per instance” basis, it is better
in most cases to classify object styles. All object styles that define geometry
(anything that would be considered an “Architectural Object” rather than
a “Documentation Object”) should be classified.
■ Be careful not to be too restrictive when specifying the “Applies to:”
parameter for a classification definition. In many cases you may find that
your classification definition, depending upon what is actually included
in its list of classifications, might apply best for several different object
types, if not all of them.
■ If you have a long classification definition you may want to consider
arranging the classifications in a hierarchical manner. For example, if you
were developing a classification definition to encompass the MasterSpec
II format, you might have at the top level the major division numbers,
then have the sections within those divisions defined within each one at
a lower level.
■ Store commonly used classifications in your template drawings, especially
those that might be used to classify individual objects.
Layer Key Styles
Layer Key Styles are the heart of an automated layer standard. There are several
pre-defined Layer Key Styles provided with AutoCAD Architecture that are
based on existing widely accepted industry standards. You can also define
your own Layer Key Style.
Layer Key Style Naming Conventions:
<Optional company name or other unique identifier> <Optional standard name>
<Optional descriptive element>
Example Layer Key Style Names:
Example NameLayer Key Style Description
BS1192Layer Key Style based on the British BS1192
standard.
Multi-Purpose Objects | 969
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