Label lines with different style, larger and not for all lines in grid

[iangmaia]

I was searching some way to achieve the following: have a grid on a line chart that has axis labels, but not for all grid lines. Also, would it be possible to have a slightly different style for these label grid lines (like different width) and make it a bit bigger than the chart borders?
This is the effect:

Thanks!

[liuxuan30]

for the visual effect, I guess you need to override the drawing the gird lines. Take a look at renderGridLines and renderAxisLine in axis renderer files and other useful methods. Just find proper interval and add a little more value, like 5 pt to y coordinates when drawing lines.

Some custimzations works for you but not others, so it's better for you to override correspoinding methods to get what you want. With a good code base, it's easy for you to figure out how to do it.