AI/PS钢笔工具使用高级教程 Lynda – Adobe Pen Tool: Mastery分别讲解Photoshop/Illustrator/InDesign中钢笔工具进阶使用方法，曲线路径制作讲解，节点，把手，分段的控制等Become more proficient with the Adobe Pen tool by learning advanced techniques, including the proper way to create Bezier curves.

In this course, Deke McClelland takes a deep dive into the intricacies of this Adobe standby, and helps bolster your expertise by explaining its mechanics and features.

Deke starts off by discussing Bezier curves in anatomical detail—all the way down to their anchor points, control handles, and segments.

In addition, he explains the difference between constrained and unconstrained path dragging, and shows how to create smooth and cusp points.

Next, he explains how curves really work, providing their mathematical underpinnings.