length_from_visual_angle_ppd# stimupy.utils.length_from_visual_angle_ppd(visual_angle, ppd, round=True)# Calculate length (pixels) from visual angle (degrees) and pixels-per-degree Parameters: visual_angle (float or None) – visual angle in degrees ppd (int or None) – pixels per degree round (bool) – if True, round output length to full pixels Return type: visual angle (degrees) translated to length (pixels)