TracePro User Manual

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How Does TracePro Implement Solid Modeling
TracePro is based on a specific solid modeling engine called ACIS, made by
Spatial Corporation. Using ACIS, TracePro can conveniently share solid model
data with any other software program that is based on ACIS. TracePro can also
exchange data with most other non-ACIS based CAD and analysis programs via
IGES, STEP and other CAD formats using optional translators. TracePro can also
import lens design files from popular lens design programs.
Any entities that you create in TracePro are referred to collectively as a model.
Contained in this model are the individual pieces of solid geometry that are called
objects. By using a solid modeling approach, TracePro requires that all solid
objects must be bounded by surfaces. Objects can be defined within TracePro, or
they can be defined elsewhere (as in a CAD program) and imported into
TracePro. Objects within the TracePro solid model can be manipulated in a
number of different ways including the action of combining two or more objects
into a single object so that the only surfaces the object now has, are the
bounding or outer surfaces of the object.