General
Import Options - Parasolid / PS2 / PS3 / STEP / VX Neutral / STL / SAT
File
Import
Set Options
Use this form to perform various tasks while importing Parasolid,
PS2, PS3, STEP, VX Neutral,
STL and SAT files. 
For STL imports, the part will be converted
to the VX session's units.
Complete the form as desired.
Pick
OK to accept the current selections as the new defaults or Reset
to return all selections to their previous defaults.
Auto sew geometry
Closed surface volumes will be sewed (joined) at their mating
edges to form a solid once they have been imported into VX. This option
requires that the imported edges fall within tolerance of each other.
If importing directly into an existing object or one that is currently active, the default tolerance displayed in the Part Settings Form is used. If importing into a new object (created during the import), the default system tolerance (0.1mm) is used.
Auto activate part
The imported file will be automatically activated for editing (i.e., it will become the active part).
Break trim edges
Trim loops will be evaluated for tangent discontinuities and broken if required.
This sets the default directory for locating
files to import of the specified type. Pick the folder icon to select
a path from the Directory Browser. The path will
be added to the Default Directory Field. The Default directory
field only applies to the active session while
VX is running unless it is permanently saved using the Save Settings
button on the Import Form.
More about the Default Directory 
All import/export translators have their own default-directory on their options form. If the default-directory is set, then the Directory Browser will always come up in that directory. If the default-directory is not set, then the file browser will come up in the "last visited" directory.
The last visited directory is not unique. There is one last visited for all import translators and one for all export translators. By default, the value in the Default Directory field is set to '.' which means, use the "last visited" directory. The file icon allows you to browse for a directory which will then be the new default. You can set the Default Directory back to "." by selecting Reset on the form.
OK - Accept the current selections and make them the defaults.
Reset - Return all selections to the previous defaults.
The VX Neutral format (.vxn) only supports geometric entities (i.e., curves, surface, and solids).
Step assemblies can be read. There are two formats (styles): one that uses the mapped_item entity, and the other (more common) that uses the next_assembly_usage_item entity.
