…che#15674

This pull request addresses the issue mentioned in apache#15674 by fixing the calculation of the slice radius in the Rose Chart. Currently, the radius of the sectors in the chart is mapped to the data, which can be misleading and result in disproportionate representation of the values.
The proposed solution suggests calculating the slice radius using the square root of the value, rather than the value itself. This adjustment will ensure that the areas of the slices accurately reflect the data, providing a more consistent and visually accurate representation.
By implementing this change, the resulting rendering of the Rose Chart will accurately represent the differences in data points, providing a more informative and visually appealing visualization.
This pull request aims to improve the Rose Chart functionality and enhance the overall user experience.

… cases apache#15674

This commit adds a new value 'scaledArea' to the roseType option in rose chart. When set to 'scaledArea', the radius is calculated based on the square root, and the ratio of the actual value is proportional to the ratio of the area occupied by different items. Additionally, new test cases have been added to demonstrate the effects of different roseType values.

My testing shows that when the value is negative, the pie chart will lack that specific item, but it is unclear how the code handles it.