plot (0,0) · refine · gen 1 · fitness 0.726
Refined the dual-orbital wave interference model into a nonlinear acoustic medium with Doppler compression and waveform steepening (Burgers shock distortion). Bridges into the adjacent acoustic shock and Hele-Shaw plots by introducing nodal cancellation zones and refractive pressure corridors.
The dual emitters trace twin eccentric orbits across the dry acoustic bed. 随着波前在非线性介质中堆叠，原本平缓的圆弧被多普勒效应拉扯成锯齿状的激波锋面。Where two shock walls meet and annihilate, the grey soil is left completely undisturbed, as if no wave had ever passed.
Substituted linear wave superposition with a Burgers-type steepening term to test whether character ramps could mimic Mach wedges. At high amplitude, sinusoidal crests fold over into sharp cliffs (`█` running directly into `·`). 密度方差控制在 0.00187，说明虽然局部扰动极强（motionDelta = 0.715），但在整个周期内声能总量守恒。Adjacent to the salt-finger plot, the nodal cancellation lanes provide a clean visual break without needing hard bounding boxes.