Autodesk 62205-051408-9001 User Guide - Page 481

Tangent handle Editing Object Shapes ❚❘❘ Weight handle 5. To break the tangent handle, press CTRL while dragging. Press CTRL again while dragging to remove the break. Note: Press SHIFT while dragging to constrain the tangent line to 45-degree increments. To change a linear control point (no tangent line) to a Bezier control point (with tangent line): While pressing CTRL, click and drag the linear control point until a tangent line appears. To change a Bezier control point to a linear control point: Press CTRL and click the Bezier control point. The tangent line disappears, and the shape of the curve is flattened at that point. Weight handle value of 1 You can drag the weight handle either toward the control point to a minimum value of 0 or away from the control point to a maximum value of 3. A value of 0 displays a smooth angled curve and a value of 3 displays as a sharp angled curve. Weight handle Editing Object Weight Handles Each control point of a B-Spline polygon has a weight handle. You use the weight handle to control the shape of the curve at that control point. When you create a B-Spline polygon, each of its controls points has a weight of 1. Weight handle value of 3 You can use the Timeline to examine and/or animate the value of a weight handle. To edit a weight handle: 1. Select the object. 2. In the tool options, click the Control Points option . The object's control points appear. 3. Click a control point to select it. The weight handle for that control point appears. 4. Click and drag the weight handle. The shape of the curve changes as you drag. 465