# MapContext.getRegion(Object object)
Start from base library version 1.4.0. Please remaining backward compatible.
Acquire the scope of the field of view of the current map
# Parameter
# Object object
| property | type | default value | optional | description | version |
|---|---|---|---|---|---|
| success | function | no | 接口调用成功的回调函数 | ||
| fail | function | no | 接口调用失败的回调函数 | ||
| complete | function | no | 接口调用结束的回调函数（调用成功、失败都会执行） |
# object.Success Callback
Parameter
Object res
| property | type | description | version |
|---|---|---|---|
| southwest | number | Altitude and longitude of the Southwest corner | |
| northeast | number | Altitude and longitude of the Northeast corner |