What type of curve does the Freehand tool create?

The Freehand tool in a GIS environment is primarily designed to create freeform shapes based on user input through manual drawing. The generated shapes from this tool are not limited to simple segments or arcs; instead, they often incorporate more complex curves. The Bezier curve is particularly relevant here because it allows the representation of smooth and continuous shapes, adapting well to variations in the freehand drawn input.

Bezier curves are mathematical representations that can define paths with multiple control points, allowing for graceful transitions and complex shapes that closely resemble freehand drawing. This flexibility enables users to create intricate designs and shapes that more closely match their intentions while drawing freely. A segment represents a straight line, while an arc is a circular curve; they do not capture the essence of what the Freehand tool does, which is to approximate natural, fluid lines that can change direction and curvature unpredictably. Thus, the Freehand tool effectively produces Bezier curves, making that the most accurate representation of the output.