redux-svg

Pan and zoom SVG viewbox with redux.

Example

https://reviz.github.io/redux-svg/

see example/src/ for the source

Actions

initialize

Initialize viewport size and viewBox size.

• width : (Number) - the viewport width
• height : (Number) - the viewport height

pan

Pan to given coordinates.

• x : (Number)
• y : (Number)

panBy

Pan by the direction vector between {x, y} and previous point.

use to pan with mouse drag

• x : (Number)
• y : (Number)
• previous : (Number)
  • x : (Number)
  • y : (Number)

pan

Pan to given coordinates.

• x : (Number)
• y : (Number)

resetPan

Reset pan.

center

Center the viewbox.

zoom

Relatively zoom by given scale.

• scale : (Number)

zoomFromWheelEvent

Helper action that take mouse input to compute the scale.

• e : (WheelEvent)
• timeDelta : (Number) time passed since the last mouse wheel event

resetZoom

Reset zoom to 1.

allowPan

Allow pan usage.

denyPan

Forbid pan usage.

allowZoom

Allow zoom usage.

denyZoom

Forbid zoom usage.

reset

Reset pan and zoom.

Tests

Simply clone the repo, npm install, and run npm test.

Resources

• Understanding SVG Coordinate Systems by @SaraSoueidan
• svg-pan-zoom by @ariutta
• ducks-modular-redux