Many animals alter their locomotor statistics to remain closer to a potential food source after detecting food odor. This study measured and analyzed trajectories evoked by attractive odor in walking Drosophila and develop a biologically plausible computational model of trajectory generation and modulation by sensory input. Flies were placed in shallow 4 cm by 14 cm arenas that constrained them to walk. Wind was constant at about 12 cm per second. Flies were run for approximately 2 hours during which they were exposed to 6 randomly interleaved trial types: a blank control trial, a 10 second pulse of 1% apple cider vinegar, light on for the entire 70 seconds, a 10 second light pulse centered in the 70 second trial, a simultaneous 10 second pulse of odor with a 10 second pulse of light, and a 10 second odor pulse with light on for the entire 70 seconds. Each trial lasted 70 seconds with about 5 seconds between trials. The dataset contains behavioral and imaging data.