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| Example Usage | Arguments | Return Value |
|---|---|---|
var zoomer = zs.createZoomer(opts); |
svg: <d3 selection of svg element> zoomLayer: <d3 selection of g element, child of svg element> zoomEnabled: (optional) function reference that returns truthy values when zoom should be enabled and falsy values otherwise zoomCallback: (optional) function reference to be called when the layer is zoomed | an object containing an API, see below |
| Returned API Example Usage | Arguments | Return Value |
zoomer.panZoom(translate, scale); |
| none, but the view will be zoomed |
| zoomer.reset(); | none | none, but resets the pan and zoom levels back to default |
| zoomer.translate(); | none | the current translation vector |
| zoomer.scale(); | none | the current zoom scale |
| zoomer.scaleExtent(); | none | the current zoom scale's range |