Y-Axis - Set color properties for each of multiple Y-Axes [Feature Request]

[gibhub-src]

First I would like to greet and thank you for the existence of the project. I was surprised that Java was a bit behind regarding Charting, graphing & plotting libraries.

And now to the problem. I could not find a way to change the color of an individual Y-Axis. Although it is arguably advised NOT to use multiple Axes, it still has its uses and showing multiple Axes in the same color makes things harder.
For example the demos DateChart01 - Millisecond Scale with Two Separate Y Axis Groups and DateChart03 - Minute Scale with Two Separate Y Axis Groups are so confusing. Even if we add the YAxisGroupTitle via chart.setYAxisGroupTitle() we still do not know which one of the series is being referred.

My recommendation is to extend Chart.java with additional getYAxisGroupColor(int yAxisGroup) & setYAxisGroupColor(int yAxisGroup, Color yAxisColor) - properties. Then in the respective Axis-Object (be it Axis, AxisPair, AxisTick, AxisTitle, AxisTickMarks, AsxisTickLabels and s.o.) set the color and repaint().

So i believe it would be a good feature improvement, that would benefit a lot of users.
Thank you guys!

[Mr14huashao]

@timmolter
This feature has been implemented and can be closed.

[gibhub-src]

Hello guys @Mr14huashao @timmolter ,
Thank you for extending the API with the XY-Axis-Title-Color feature and closing the relevant issues and PR - #405 #407.
However I think there was a misunderstanding regarding the #404 issue. They seem to refer the same feature but the idea of the #404 [Feature Request] was that we enable color properties of the Axis-Objects themselves with their AxisTicks & AxisLabel- objects and NOT just the AxisGroupTitle-Obect which was referred by #405 . Something like the picture below:

I suggest we reopen #404 and will consider the changes @Mr14huashao did in the #407 to get some idea how we extend these properties via the Styler.

[Mr14huashao]

@gibhub-src
You want to set the axisTickLabels and axisTickMarks colors of the X axis, Y axis, and multiple Y axes respectively.

chart.getStyler().setAxisTickLabelsColor(Color.CYAN) is valid for all AxisTickLabels.

chart.getStyler().setAxisTickMarksColor(Color.BLUE) is valid for all AxisTickMarks.

To take effect on X, Y, and multiple Y axes, need to add styles. I can submit a PR next week.

[gibhub-src]

That's right, each Y-Axis TickLabels & TickMarks independently and matching the Series-color. Could be split into 2 cases:

• first case, we set a flag in Styler that enables Y-Axes color matching Series color.
• second would be setYAxisGroupTickLabelColor(COLOR) and setYAxisGroupTickMarksColor(COLOR) methods explicitly.

The second case should give us the options to choose if we need to setYAxisGroupColor(COLOR) for a whole Y-Axis-Group or setters for TickMarksColor and/or TickLabelsColor independently. Just a matter of setter-methods.