Method and system for solid modelling

Details Method and system for solid modelling Method and system for solid modelling

G - Physics

06

T

354/1, 354/236

G06T 17/10 (2006.01) G06T 17/00 (2006.01)

Patent

CA 1285660

ABSTRACT A method of generating a spatial representation of a 3-D solid object which comprises component shapes which can be defined by transforming constructive solid geometry primitives comprises the steps of setting up a structure to define the object in terms of the primitives and transforms and setting up a definition of a 3-D box in a world space and then sub-dividing the box into sub-boxes, generating test-cells in object space by performing on the sub-boxes the inverse of each transformation to be performed on the primitives to create the object and determining which of the test-cells intersect the object. Thus, the need to transform the object primitives is avoided. A particular application of the method is the generation of 2-D images of a 3-D solid object. A solid modelling system comprising means for performing the method is defined.

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