Distributions of the variations of galactocentric radii (top half) and guiding radii (bottom half). The colour of each bin signifies the stellar mass in the bin and the colour scale shown at the bottom of the figure applies everywhere. The shaded areas represent the bar ILR (blue), CR (red), and OLR (green) radii variation in the time-span of each plot. The red vertical lines are the average of the bar CR radius during the time-span of a plot. The diagonal red lines help identify the migrators that cross the bar CR radius from lower radii (dot-shaded part of the schematic plot) or from larger radii (grid-shaded part). The diagonal green lines similarly help identify migration with respect to the OLR radius at the end of the time interval.