T-FLEX Parametric CAD. Fundamentals. 2D Design

Basic Fundamentals and Concepts of Working with Assemblies
For automatic specification of connections between the values of the fragment variables and the
variables of other fragments in the assembly, the mechanism of connectors can be used (see below
for details).
When working with a large number of external variables of a fragment, it is convenient to use
configurations.
Configuration – is a named, stored in the document, collection of values of external variables for
the fragments of the document and 3D geometry corresponding to these values. In the 2D
document, only the values of external variables are stored in the configuration. The work with
configurations will be described in more detail in the chapter “Auxiliary Tools for 3D Assemblies
Modeling” of the book “T-FLEX Parametric CAD. Three-dimensional Modeling”.
If in the document of a 2D fragment, configurations are created, then, when inserting and editing the
fragment, the user can select one of the fragment’s configurations. The values stored in the selected
configuration will be automatically assigned to all external variables of the fragment.
The name of the used configuration can be specified as a variable. If the value of this variable changes, the
system will select the corresponding configuration of the model and automatically modify the values of the
fragment’s variables.
Visibility Management of Fragment Drawing Elements
A part drawing may contain an image that should not be included in the assembly drawing. Alternatively, we
may need to use one or another portion of the same part drawing, depending on circumstances. (For instance,
in one case we need to show the top view, while in the other – the front view.) Visibility of the fragment
drawing elements inserted in the assembly can be controlled using layers or visibility levels. Two approaches
are possible when using layers.
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