### What problem does this feature solve? treemap当前不能设置最小缩放值，矩形图会缩小至消失，希望能有属性控制矩形图的最小缩放和最大缩放 ### What does the proposed API look like? 类似Geo地图的geo.scaleLimit属性，控制滚轮缩放。
What problem does this feature solve?
treemap当前不能设置最小缩放值，矩形图会缩小至消失，希望能有属性控制矩形图的最小缩放和最大缩放
What does the proposed API look like?
类似Geo地图的geo.scaleLimit属性，控制滚轮缩放。