Which type forces the segments into a smooth curve tangent to the vertex?

Which type forces the segments into a smooth curve tangent to the vertex?

• A. Corner
• B. Smooth
• C. Bezier
• D. Bezier Corner

Answer: (B)

The main concept is how the vertex type on a spline controls tangency and smoothness at that point. The smooth vertex type forces the two segments that meet there to share a single tangent direction, so the curve passes through the vertex without a kink. This creates continuous first derivatives (C1 continuity), meaning the curve is smoothly tangent to the vertex. That’s why this option is best: it automatically enforces a smooth, tangent connection at the vertex, giving a seamless curve. Corner yields a sharp angle with no guaranteed tangency, Bezier gives you manual control with handles to shape curvature (not automatically tangent), and Bezier Corner allows a sharp change even with Bezier controls.

The main concept is how the vertex type on a spline controls tangency and smoothness at that point. The smooth vertex type forces the two segments that meet there to share a single tangent direction, so the curve passes through the vertex without a kink. This creates continuous first derivatives (C1 continuity), meaning the curve is smoothly tangent to the vertex.

That’s why this option is best: it automatically enforces a smooth, tangent connection at the vertex, giving a seamless curve. Corner yields a sharp angle with no guaranteed tangency, Bezier gives you manual control with handles to shape curvature (not automatically tangent), and Bezier Corner allows a sharp change even with Bezier controls.