Galaxy-galaxy lensing signals of cluster main halo and subhalo (assuming NFW profiles). The subhalo is at 0.6 Mpc from the cluster center. Top panel: the subhalo around the subhalo center (thin solid red line), the main halo around the main halo center (thick solid black line), and the main halo around the calibration point (dashed/dotted line for positive/negative part). Bottom panel: the subhalo around the subhalo center (thin dotted green line), the subhalo plus main halo around the subhalo center (black dashed line), the subhalo plus main halo around the main halo center (cyan dotted line), the subhalo plus main halo around the calibration point (red solid line), and the reconstructed subhalo (blue thick solid line).