firstSliceAngle (Pie, Doughnut) rotation

[ghost]

Please add feature for the ability to rotate Pie/Doughnut charts based on the First Slice Angle option.

    // src/core-interfaces.ts & types/index.d.ts
...
    displayBlanksAs?: string
    fill?: string,
    firstSliceAngle? : number,
    hasArea?: boolean
...

// src/gen-charts.ts
...
// 4: Close "SERIES"
    strXml += '  </c:ser>'
    strXml += `  <c:firstSliceAng val="${opts.firstSliceAngle || 0}"/>`
    ...

Thank you.

[gitbrent]

What are the possible values for firstSliceAngle? 0-360?
Any screencaps of what the results look like?
Does this apply to both 2D and 3D pie charts?

[ghost]

Possible values: 0-360.
Applicable: 2D, 3D Pie, Doughnut
Not Applicable: Composite [second plot] Pie Charts (pie with pie for sector; pie with column for sector)

2D Pie Example of change:

2D Pie - UI Option:

3D Pie - UI Option:

Doughnut - UI Option:

Does not depend on the number of series.