Phase diagram with the coupling energy , .

<p>Vertical lines: stability range of OD stripes, hexagons, and constant solution. Magenta (orange) line: transition of stripes (rhombs) to the orientation scotoma solution. Blue line: stability border for the uniform solution (hPWC). Green line: stability line of stripe-like solutions. Red line: pattern solutions ceases to exist, see <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1002466#pcbi.1002466.e244" target="_blank">Eq. (45)</a> and <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1002466#pcbi.1002466.e313" target="_blank">Eq. (57)</a>. Blue region: stability region of hPWC, gray region: No pattern solution exists.