than 180° FALSE: The [...] than -180° n [...] °*(i-1)-180° .. 360
than 180° FALSE: The [...] than -180° n [...] °*(i-1)-180° .. 360
than 180° FALSE: The [...] than -180° n [...] range [360°*(i-1)-180
than 180° FALSE: The [...] than -180° n [...] range [360°*(i-1)-180
-180° Elbow [...] less than 180° Elbow [...] close to 0°, 180° or
-180° Elbow [...] less than 180° Elbow [...] close to 0°, 180° or