The Node Tool is used to edit existing curves and shapes.
Settings
The following settings can be adjusted from the context toolbar:
Convert—converts the selected node into a Sharp, Smooth, or Smart node.
Action—Manipulates the curve(s):
Break Curve opens the shape at the selected node.
Close Curve joins the start and end nodes to create an enclosed shape.
Smooth Curve modifies a line or shape, by adding and removing nodes, to make it more aesthetic.
Join Curves connects two separate curves together to make one curve. Curves need to be both selected with the using either the Node Tool or as you draw.
Reverse Curve lets you draw from the opposite end of the curve—The start node becomes active, ready for further drawing.
Snap—Controls node snapping:
Align to nodes of selected curves—will snap any node you drag to any other node on the same or a different curve.
Snap to geometry of selected curves—will snap dragged nodes to the same or different curve's path or node.
Snap all selected nodes when dragging—will snap multiple selected nodes, when dragging, to a "target" node on any selected curves.
Snap off-curve handles—will align a dragged control handle to an adjacent node.
These options are independent of the global snapping options.