Fig. 6.
From: Lepidoptera demonstrate the relevance of Murray’s Law to circulatory systems with tidal flow
Heatmaps showing the differences in angle (mean value: 10.1076∘, standard deviation: 7.3398∘) and diameter (mean value: 0.8496 microns, standard deviation: 0.1289 microns) between all pairs of parent and child veins measured here. The value along the x-axis is the difference in angle between each parent and child vein. For example, if a wing is rotated so that the parent vein is at an angle of 0∘ and one of its child veins is at an angle of 30∘, the value for this pair of parent and child veins along the x-axis will be 30