Module animation 

Built-in animation effects for nodes.

Two families, distinguished by how they handle time and by when they stop:

• Event-driven effects (Animation::pulse, Animation::ripple, Animation::countdown_arc, Animation::scale_in, Animation::crosshair) are anchored to the Instant an event happened and terminate: they return true while still playing and false once finished, so the caller can drop the entry and stop repainting.
• Persistent effects (Animation::halo, Animation::blink, Animation::orbit) never end. They take the frame time in seconds (ui.input(|i| i.time)) rather than an Instant, so every element animated in the same frame shares one clock and cannot drift apart.

Persistent effects require the caller to keep requesting repaints, which turns an idle app into one redrawing continuously — use them for a handful of elements, not for every node.

Both families are reached through Map::node; see NodeHandle. They are also useful from a custom NodeTemplate: call them from notification_ui / marker_ui instead of reimplementing the effect. When you do, remember to call ui.ctx().request_repaint() yourself — the widget only does that for its own built-in path.

Structs

Animation

Factory for the built-in node animations.

Constants

COUNTDOWN_DURATION

How long Animation::countdown_arc takes to empty, in seconds.

CROSSHAIR_DURATION

How long Animation::crosshair takes to converge, in seconds.

PULSE_DURATION

How long Animation::pulse plays, in seconds.

RIPPLE_DURATION

How long Animation::ripple plays, in seconds.

SCALE_IN_DURATION

How long Animation::scale_in plays, in seconds.