javascript - How can I move dynamically a gridLine with mouse in D3.js? -

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i know,

how can move gridline up/down dynamically mouse in d3.js ?

thanks lot :)

the way have done in past add horizontal or vertical line graph , mark hidden.

then whenever element moused-over show line, whenever element moused-out hide line again. need set x , y values of line such matches location of element cursor hovering over.

this similar way showing/hiding tooltips work: https://gist.github.com/biovisualize/1016860 except not use div (you use line) , not use location of mouse pointer (you use x , y of element).


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