kopia lustrzana https://github.com/Tldraw/Tldraw
17 wiersze
649 B
TypeScript
17 wiersze
649 B
TypeScript
import type { Action } from 'state/constants'
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import Vec from '@tldraw/vec'
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import { mutables } from 'state/mutables'
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export const zoomIn: Action = (data) => {
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const { camera } = data.pageState
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const i = Math.round((data.pageState.camera.zoom * 100) / 25)
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const zoom = Math.min(5, (i + 1) * 0.25)
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const center = [mutables.rendererBounds.width / 2, mutables.rendererBounds.height / 2]
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const p0 = Vec.sub(Vec.div(center, camera.zoom), center)
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const p1 = Vec.sub(Vec.div(center, zoom), center)
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const point = Vec.toFixed(Vec.add(camera.point, Vec.sub(p1, p0)))
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data.pageState.camera.zoom = zoom
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data.pageState.camera.point = point
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}
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