内容

• 特性
• 详细描述

CoordinateAnimation QML Type

A PropertyAnimation for geo coordinate properties. 更多...

import 语句：	import QtPositioning 5.12
Since:	Qt 5.3
继承：	PropertyAnimation

• 所有成员列表，包括继承成员

特性

• direction : enumeration
• from : coordinate
• to : coordinate

详细描述

A specialized PropertyAnimation that defines an animation between two coordinates .

默认情况下， latitude 的 coordinate is animated in the direction of shortest (geodesic) distance between those coordinates. Since CoordinateAnimation uses Mercator map projection, the latitude animation is always between -90 and 90 degrees. The longitude animation path is not limited and can go over 180 degrees in both west and east directions.

The direction property can be set to specify the direction in which the longitude animation should occur.

另请参阅 Qt Quick 中的动画和过渡 .

特性文档编制

direction : enumeration

This property holds the direction of the longitude animation of the coordinate .

Possible values are:

• CoordinateAnimation .Shortest (default) - the longitude animation goes in the direction that produces the shortest animation path.
• CoordinateAnimation .West - the longitude animation always goes into western direction and may cross the date line.
• CoordinateAnimation .East - the longitude animation always goes into eastern direction and may cross the date line.

该特性在 Qt 5.5 引入。

from : coordinate

This property holds the coordinate where the animation should begin.

to : coordinate

This property holds the coordinate where the animation should end.