-
Notifications
You must be signed in to change notification settings - Fork 1.3k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
* feat: support translate & zoom with camera #4344 * feat: support fitCenter & focusItem with Camera API #4344 * feat: support fitView #4344 * feat: support focusing multi-items & stop transition of current transform #4348
- Loading branch information
Showing
10 changed files
with
1,134 additions
and
178 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| import { ICamera, PointLike } from '@antv/g'; | ||
| import { IGraph } from '../../types'; | ||
| import { CameraAnimationOptions } from '../../types/animate'; | ||
| import { ViewportChangeHookParams } from '../../types/hook'; | ||
|
|
||
| let landmarkCounter = 0; | ||
|
|
||
| export class ViewportController { | ||
| public graph: IGraph; | ||
|
|
||
| constructor(graph: IGraph<any>) { | ||
| this.graph = graph; | ||
| this.tap(); | ||
| } | ||
|
|
||
| /** | ||
| * Subscribe the lifecycle of graph. | ||
| */ | ||
| private tap() { | ||
| this.graph.hooks.viewportchange.tap(this.onViewportChange.bind(this)); | ||
| } | ||
|
|
||
| private async onViewportChange({ transform, effectTiming }: ViewportChangeHookParams) { | ||
| const camera = this.graph.canvas.getCamera(); | ||
| const { translate, rotate, zoom, origin = this.graph.getViewportCenter() } = transform; | ||
| const currentZoom = camera.getZoom(); | ||
|
|
||
| if (effectTiming) { | ||
| const { duration = 1000, easing = 'linear', easingFunction } = effectTiming; | ||
| const landmarkOptions: Partial<{ | ||
| position: [number, number] | [number, number, number] | Float32Array; | ||
| focalPoint: [number, number] | [number, number, number] | Float32Array; | ||
| zoom: number; | ||
| roll: number; | ||
| }> = {}; | ||
|
|
||
| if (translate) { | ||
| const { dx = 0, dy = 0 } = translate; | ||
| const [px, py] = camera.getPosition(); | ||
| const [fx, fy] = camera.getFocalPoint(); | ||
| landmarkOptions.position = [px - dx, py - dy]; | ||
| landmarkOptions.focalPoint = [fx - dx, fy - dy]; | ||
| } | ||
|
|
||
| if (zoom) { | ||
| const { ratio } = zoom; | ||
| landmarkOptions.zoom = currentZoom * ratio; | ||
| } | ||
|
|
||
| if (rotate) { | ||
| const { angle } = rotate; | ||
| landmarkOptions.roll = camera.getRoll() + angle; | ||
| } | ||
|
|
||
| const landmark = camera.createLandmark(`mark${landmarkCounter++}`, landmarkOptions); | ||
| return new Promise((resolve) => { | ||
| camera.gotoLandmark(landmark, { | ||
| duration: Number(duration), | ||
| easing, | ||
| easingFunction, | ||
| onfinish: () => { | ||
| resolve(undefined); | ||
| }, | ||
| }); | ||
| }); | ||
| } else { | ||
| if (translate) { | ||
| const { dx = 0, dy = 0 } = translate; | ||
| camera.pan(-dx / currentZoom, -dy / currentZoom); | ||
| } | ||
|
|
||
| if (rotate) { | ||
| const { angle } = rotate; | ||
| const [x, y] = camera.getPosition(); | ||
| if (origin) { | ||
| camera.setPosition(origin.x, origin.y); | ||
| } | ||
| camera.rotate(0, 0, angle); | ||
| if (origin) { | ||
| camera.pan(x - origin.x, y - origin.y); | ||
| } | ||
| } | ||
|
|
||
| if (zoom) { | ||
| const { ratio } = zoom; | ||
| camera.setZoomByViewportPoint(currentZoom * ratio, [origin.x, origin.y]); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| destroy() {} | ||
| } |
Oops, something went wrong.