Cricket Bowling Delivery Lab: Swing & Seam Trajectory (2D)

This 2D companion drives the same delivery mechanics as the 3D bowling lab — release pace, aerodynamic swing, seam angle, line and length — through a plain canvas view built for reading the physics rather than orbiting a scene: a side-on trajectory pane shows the full parabola from release to the stumps with the pitch's yorker/full/good/short zones marked, a top-down pane isolates the pre-bounce swing curve from the post-bounce seam kick along the same flight, and a lateral-deflection timeline plots exactly when each of those two forces acts, so the physical difference between air swing and seam movement off the pitch is directly visible instead of implied.