CameraUpdateFactory ZoomBy Method (Single)高德地图 Windows Phone 8 搜索API参考手册
高德地图 Windows Phone 8 搜索API参考手册
以当前比例尺作为基准，zoomByamount作为差值缩放地图

Namespace: Com.AMap.Api.Maps
Assembly: WindowPhone8DOC (in WindowPhone8DOC.dll) Version: 2.0.0.0
Syntax
复制到剪贴板打印
public static CameraUpdate ZoomBy(
	float zoomByamount
)

Parameters

zoomByamount
Type: 联机System Single
比例尺差值，正值为放大；负值为缩小

Return Value

Type: CameraUpdate
返回地图视窗更新参数类，用于传递给MoveCarmera作为参数
See Also
CameraUpdateFactory Class
CameraUpdateFactory Members
ZoomBy Overload
Com.AMap.Api.Maps Namespace