Introducing BarsView

[chrisengelsma]

Overview

:sparkles: :bar_chart: :sparkles: BarsView is the latest View I'd like to discuss and hopefully introduce to the JTK. Closely matching the same style as the other Views (PointsView, PixelsView, ContoursView, etc), BarsView allows the user to visualize their data as a bar chart.

Supported Functionality

• setBarWidth(float) - Width is set as a fraction
• setAlignment(BarsView.Alignment) - Alignment relative to the tick mark (before, center, after)
• setStacking(boolean) - Do you want to stack multiple bar charts or have them plot adjacent to one another?
• Both orientations
• Line (outline of bars) and color styling

  Concerns

• Data value labels are not supported. Not sure what the answer is to this one, if you have stacked bars how do you want your labels presented?
• Stacking bars is great but has no practical use until a Legend is implemented. I thought there was one but I could be mistaken.
• Pattern-fill is not supported, which may be using BarsView for print.

  Pretty pictures

Who doesn't like pictures?

Stacking example You can see how a legend would be helpful here...

Example showing vertical orientation with a color model. Zoom into the same graph.

[dhale]

I want to merge this. Please remove the git merge junk near the end of BarsViewDemo.py so that it runs.

[chrisengelsma]

My bad.

[dhale]

Thanks, Chris!