# API
| Name | Description | Type | Default |
|---|---|---|---|
| dataSource | root node of the tree | object | --- |
| scaleRatio | scaling ratio | number | 1 |
| options | Configurations | object | Please refer to Options chapter |
| class | class. The height of the canvas must be specified by class or style | string | --- |
| style | style. The height of the canvas must be specified by class or style | object | --- |