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80 lines
2.9 KiB
80 lines
2.9 KiB
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one |
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* or more contributor license agreements. See the NOTICE file |
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* distributed with this work for additional information |
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* regarding copyright ownership. The ASF licenses this file |
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* to you under the Apache License, Version 2.0 (the |
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* "License"); you may not use this file except in compliance |
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* with the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, |
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* software distributed under the License is distributed on an |
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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* KIND, either express or implied. See the License for the |
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* specific language governing permissions and limitations |
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* under the License. |
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*/ |
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/** |
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* AUTO-GENERATED FILE. DO NOT MODIFY. |
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*/ |
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one |
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* or more contributor license agreements. See the NOTICE file |
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* distributed with this work for additional information |
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* regarding copyright ownership. The ASF licenses this file |
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* to you under the Apache License, Version 2.0 (the |
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* "License"); you may not use this file except in compliance |
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* with the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, |
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* software distributed under the License is distributed on an |
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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* KIND, either express or implied. See the License for the |
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* specific language governing permissions and limitations |
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* under the License. |
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*/ |
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function getCenterCoord(view, point) { |
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// Use projected coord as center because it's linear. |
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return view.pointToProjected ? view.pointToProjected(point) : view.pointToData(point); |
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} |
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export function updateCenterAndZoom(view, payload, zoomLimit, api) { |
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var previousZoom = view.getZoom(); |
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var center = view.getCenter(); |
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var zoom = payload.zoom; |
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var point = view.projectedToPoint ? view.projectedToPoint(center) : view.dataToPoint(center); |
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if (payload.dx != null && payload.dy != null) { |
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point[0] -= payload.dx; |
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point[1] -= payload.dy; |
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view.setCenter(getCenterCoord(view, point), api); |
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} |
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if (zoom != null) { |
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if (zoomLimit) { |
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var zoomMin = zoomLimit.min || 0; |
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var zoomMax = zoomLimit.max || Infinity; |
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zoom = Math.max(Math.min(previousZoom * zoom, zoomMax), zoomMin) / previousZoom; |
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} |
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// Zoom on given point(originX, originY) |
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view.scaleX *= zoom; |
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view.scaleY *= zoom; |
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var fixX = (payload.originX - view.x) * (zoom - 1); |
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var fixY = (payload.originY - view.y) * (zoom - 1); |
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view.x -= fixX; |
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view.y -= fixY; |
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view.updateTransform(); |
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// Get the new center |
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view.setCenter(getCenterCoord(view, point), api); |
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view.setZoom(zoom * previousZoom); |
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} |
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return { |
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center: view.getCenter(), |
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zoom: view.getZoom() |
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}; |
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} |