Part creation
Parts are an essential tool for creating a model. The parts panel works in a way similar to Layers in Rhino, but not quite the same, because it maintains certain aspects of a curve and has a different visibility setting.
Parts
A part is a view on a group of objects inside the model, which give the information to create a construction piece (pattern). In other words, the part contains the information in order to create a pattern.
How to create a part
It is possible to create a part on the JPattern Parts toolbar using the _J_PartCreate command. it is also possible to create it through the “+” symbol on the Pattern Parts panel.
Once you decide to create a part, you will need to include the objects you want inside to create the view. This can be done prior to the selection of the command like many other Rhino commands.
After the lines or the command are selected, it will present this form:
The panel presents name of the part, data about dimensions, and other properties regarding material, allowance (the distance of a piece from the other when nesting).
Then it is possible to select the entities that we cant inside the part to complete it.
Part Panel
Part panel has some functions on the top bar.
The Green tick indicates the activeness of a part. When a part is active, objects that are created are added automatically to it.
is to create a new part
move part up/down
toggle the master layer. This will show the complete
toggles the generating lines of a part. Generating lines are the baselines that constitute a part.
toggles printiboxes
The buttons on the side are to manage the panel
select all parts
assess parts
delete a selected part
show panel columns
list view/menu view
Right clicking on a part in the Part Panel will toggle properties. You can acc and remove objects and entities to a part with this function.
It will be possible to edit a part, select objects inside a part, add or remove objects from a part.
Note
Auto part 
An auto part is a different kind of part that is showing you determined types of entity of your choice. It is a type of filtering that can be used for different configurations and setups.
It is possible to choose all the entity types and create some visualization to help manage the model.
The key feature of the auto part is that it is inside the software so they will appear in every model and when you create new ones.
Creating Patterns
Now that we traced the model and learned about parts and entities, it’s time to create a part (pattern).
This model was traced using baselines and margins. After those, some layers with different colours (lateral/medial) were applied, and some special properties to Axis lines (dashed and cyan).
Boundary
Definition: a boundary is the cutting information of a pattern. This information is used by cutting machines to identify the cutting areas of a pattern.
_J_BoundaryCreateLegacy is the go-to command to create a boundary. The method is creating a path
that closes (all the boundaries need to be closed).
To create a proper pattern, there will need to be a boundary. Using the _J_BoundaryCreateLegacy
command, we are going to select the path that leads to the shape of the pattern that we want.
To create a heel, the procedure is to mirror some lines and then create a boundary
Select mirror curves, right click, and select the mirror line (Axis):
Then, by using the _J_BoundaryCreateLegacy command, and creating a path to create the heel:
It is possible to add automatically all the round corners and notches that are applied to the relative baselines by using the toggle on the command line during the command.
Once the boundary is created, it will be automatically the only object selected. In this way, it is possible to click on 
and create a new part:
By creating this part we will see the boundary in the thumbnail and we will be able to confirm.
Tip
Use parts with creativity. Parts are just different types of visualization of the lines that are in the model. One part can be used simply to store some lines that you want grouped together, or to keep the shell of the shoe.
Example For the Shell, there is also a property under the window “Type”, in which you can indicate that the part is a Shell. This part will not activate automatically when clicked on (to prevent adding undesiderd objects) and will likely contain guidelines for the building of the patterns.
Example #2 if a model is very complicated, it is possible to separate various lines and put them inside a part in order to manage them better later in the works.
