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On the Draw toolbar, select the FreeForm Command
to open the FreeForm Ribbon.
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Drag to draw a curve.
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Smooth allows the software to adjust the geometry that you draw.
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When Smooth is off, the software interprets the exact movements of your pointer.
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When Smooth is on, the software creates smooth, symmetric, or cusp curves.
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You can use relationships to draw a curve that is tangent or perpendicular at its start point and end point. If Maintain Relationships is set, the software places relationship handles.
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You can begin or end your drawing using the end point or key point of an element.
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You can use Insert Node Command (Shortcut Menu) on the shortcut menu to add nodes to a curve.
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You can use Delete Node Command (Shortcut Menu) on the shortcut menu to delete nodes from a curve.