Objects
This level of the object hierachy shows the contents of each element.
Typically, an element contains all the geometry to define a surface. This information
is divided into different curve sets that include projection curves and section curves. Each curve set
is created with the menu command OBJECTÞNew. An element may
well contain three curve sets – X and Y projections and cross-sections.
This level also includes the surface itself, and its attribute objects.
An element may also contain several surfaces. For instance, the command
OBJECTÞCopy may be used to make a copy of a surface that can then be
moved to a new position. For example if you were modelling an Urn, with two identical handles,
the first handle could be copied and the moved to the opposite side of the body. The element
would then contain two surfaces.