i have some question about parameter，

[Oranger1]

what is “canonical” meaning？what is it affect ？
all line's shiftCoords [0,0] are same point? i want to figure out where is [0,0]
i’m sorry about my English is so poor，i will appreciate it if somebody answer my question.

[johnwalley]

Hi @Oranger1. Good questions! Canonical is used when you have multiple stations in the same place. This would usually be the case if you have more than line crossing and want to show an interchange (black and white circle marker) there. The station that is marked 'canonical' will be displayed and the others hidden.

The shiftCoords property will move the whole line by that amount, e.g. with [0,10] all line segments and stations will be moved 10 units vertically.

[Oranger1]

Hi @Oranger1. Good questions! Canonical is used when you have multiple stations in the same place. This would usually be the case if you have more than line crossing and want to show an interchange (black and white circle marker) there. The station that is marked 'canonical' will be displayed and the others hidden.

The shiftCoords property will move the whole line by that amount, e.g. with [0,10] all line segments and stations will be moved 10 units vertically.

oh！ i get it！ thanks for your response!