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Merged
cizl merged 2 commits into from
Aug 1, 2023
Merged

New: Add zoom and recenter functions #74

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faa9eed
New: Add zoom and recenter functions
cizl Aug 1, 2023
54d87c6
Fix: reuse this.render
cizl Aug 1, 2023
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11 changes: 11 additions & 0 deletions src/views/orb-map-view.ts
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -198,6 +198,11 @@ export class OrbMapView<N extends INodeBase, E extends IEdgeBase> implements IOr
onRendered?.();
}

zoomIn(onRendered?: () => void) {
this._leaflet.zoomIn();
onRendered?.();
}

recenter(onRendered?: () => void) {
const view = this._graph.getBoundingBox();
const topRightCoordinate = this._leaflet.layerPointToLatLng([view.x, view.y]);
Expand All @@ -206,6 +211,11 @@ export class OrbMapView<N extends INodeBase, E extends IEdgeBase> implements IOr
onRendered?.();
}

zoomOut(onRendered?: () => void) {
this._leaflet.zoomOut();
onRendered?.();
}

destroy() {
this._renderer.removeAllListeners();
this._leaflet.off();
Expand Down Expand Up @@ -240,6 +250,7 @@ export class OrbMapView<N extends INodeBase, E extends IEdgeBase> implements IOr
private _initLeaflet() {
const leaflet = L.map(this._map, {
doubleClickZoom: false,
zoomControl: false,
}).setView([0, 0], this._settings.map.zoomLevel);

leaflet.on('zoomstart', () => {
Expand Down
22 changes: 22 additions & 0 deletions src/views/orb-view.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -300,6 +300,17 @@ export class OrbView<N extends INodeBase, E extends IEdgeBase> implements IOrbVi
onRendered?.();
}

zoomIn(onRendered?: () => void) {
select(this._canvas)
.transition()
.duration(this._settings.zoomFitTransitionMs)
.ease(easeLinear)
.call(this._d3Zoom.scaleBy, 1.2)
.call(() => {
this.render(onRendered);
});
}

recenter(onRendered?: () => void) {
const fitZoomTransform = this._renderer.getFitZoomTransform(this._graph);

Expand All @@ -308,6 +319,17 @@ export class OrbView<N extends INodeBase, E extends IEdgeBase> implements IOrbVi
.duration(this._settings.zoomFitTransitionMs)
.ease(easeLinear)
.call(this._d3Zoom.transform, fitZoomTransform)
.call(() => {
this.render(onRendered);
});
}

zoomOut(onRendered?: () => void) {
select(this._canvas)
.transition()
.duration(this._settings.zoomFitTransitionMs)
.ease(easeLinear)
.call(this._d3Zoom.scaleBy, 0.8)
.call(() => {
this._renderer.render(this._graph);
onRendered?.();
Expand Down