How to create bones
To create a chain of bones activate the Bone tool in the Transform Tools menu (or pressB) and click anywhere.
The first click is the start of the first bone. The bone appears blue as it hasn’t actually been created until you click a second time. Continue this process to draw subsequent bones. Each new bone in a chain is the child of the last bone. Hit Esc or switch back to the select tool V when you’re done.
Joints
Joints don’t exist in the hierarchy. They are controls to set up and orient bones in a chain. Moving joints change properties like length and rotation of the nearby bones.Root bones
The first bone in a chain is called a root bone. It is the only bone in a chain that has position X and Y properties. Other bones are defined by their length and rotation relative to their parent.Connecting bones to artwork
1. Hierarchical relationships
The simplest way to connect shapes and images to bones is through their hierarchical relationships. Any child of a bone will transform with the bone. You can make vector shapes children of bones by dragging and dropping the shape layers onto the desired bone in the hierarchy.2. Binding
Binding is a way to connect only certain parts of your graphics to bones. This allows you to deform parts of a shape with one bone and another part of the same shape with another bone.
To begin binding shapes to bones, select a path layer, and hit enter. Doing this will activate edit vertices mode and reveal the Bind Bones option in the Inspector.