Appeal No. 95-3378
Application No. 08/126,443
DECISION ON APPEAL
This is an appeal from the final rejection of claims 1
through 7. In an Amendment After Final (paper number 18), claims
1 and 7 were amended, and claim 2 was canceled. Accordingly,
claims 1 and 3 through 7 remain on appeal.
The disclosed invention relates to a method of operating and
storing data in a graphics display system to facilitate creation
and display of sectional views of solid objects.
Claim 1 is illustrative of the claimed invention, and it
reads as follows:
1. A method of operating a graphics display system to
facilitate creation and display of sectional views of solid
objects, said method comprising the steps of:
defining a base model or accessing a pre-existing base model
of a solid object to be displayed in a sectional view;
defining a model of a sectioning object or accessing a pre-
existing model of a sectioning object;
specifying a desired Boolean logic operation for applying
said sectioning object model to said base model;
generating a hierarchically combined model of said solid
object for subsequent generation of at least one view of said
object, said combined model incorporating both said base model
and said sectioning object model, for sectioning in accordance
with said sectioning object model and in accordance with said
Boolean logic operation as applied to said base model;
modifying said sectioning model while simultaneously viewing
said base model;
modifying said base model within said hierarchically
2
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