At the moment we display data as scatter plot, when the number of points does not exceed decimation limit, and as density plot when the number of points does exceed this limit.
Scatter plot and density plot should be separate charts. These are the reasons:
- User should be able to create density plot with any number of points
- Chart type and display might be different for density plot in the future
- Scatter plot look should not change when the number of points exceeds decimation limit
- Scatter plot should support errors in the future