Scatter

- bar and pie are individual ec instances.
- CHECK: brush an area and drag dataZoom.

Scatter in Map

- bar and scatter are in the same ec instances and use setOption in brushSelected event.

seperatedEChartsInstance: Y N
DIFF with previous selected: Y N
animation: Y N
animationDurationUpdate:
throttleDelay:
throttleType: debounce fixRate
Stacked Bar (rect-polygon intersect)

- CHECK: rect-polygon intersect.