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| /* | |
| * Licensed to the Apache Software Foundation (ASF) under one | |
| * or more contributor license agreements. See the NOTICE file | |
| * distributed with this work for additional information | |
| * regarding copyright ownership. The ASF licenses this file | |
| * to you under the Apache License, Version 2.0 (the | |
| * "License"); you may not use this file except in compliance | |
| * with the License. You may obtain a copy of the License at | |
| * | |
| * http://www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, | |
| * software distributed under the License is distributed on an | |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| * KIND, either express or implied. See the License for the | |
| * specific language governing permissions and limitations | |
| * under the License. | |
| */ | |
| // FIXME Where to create the simple view coordinate system | |
| import View from '../../coord/View'; | |
| import {getLayoutRect} from '../../util/layout'; | |
| import * as bbox from 'zrender/src/core/bbox'; | |
| import GraphSeriesModel, { GraphNodeItemOption } from './GraphSeries'; | |
| import ExtensionAPI from '../../core/ExtensionAPI'; | |
| import GlobalModel from '../../model/Global'; | |
| import { extend } from 'zrender/src/core/util'; | |
| function getViewRect(seriesModel: GraphSeriesModel, api: ExtensionAPI, aspect: number) { | |
| const option = extend(seriesModel.getBoxLayoutParams(), { | |
| aspect: aspect | |
| }); | |
| return getLayoutRect(option, { | |
| width: api.getWidth(), | |
| height: api.getHeight() | |
| }); | |
| } | |
| export default function createViewCoordSys(ecModel: GlobalModel, api: ExtensionAPI) { | |
| const viewList: View[] = []; | |
| ecModel.eachSeriesByType('graph', function (seriesModel: GraphSeriesModel) { | |
| const coordSysType = seriesModel.get('coordinateSystem'); | |
| if (!coordSysType || coordSysType === 'view') { | |
| const data = seriesModel.getData(); | |
| const positions = data.mapArray(function (idx) { | |
| const itemModel = data.getItemModel<GraphNodeItemOption>(idx); | |
| return [+itemModel.get('x'), +itemModel.get('y')]; | |
| }); | |
| let min: number[] = []; | |
| let max: number[] = []; | |
| bbox.fromPoints(positions, min, max); | |
| // If width or height is 0 | |
| if (max[0] - min[0] === 0) { | |
| max[0] += 1; | |
| min[0] -= 1; | |
| } | |
| if (max[1] - min[1] === 0) { | |
| max[1] += 1; | |
| min[1] -= 1; | |
| } | |
| const aspect = (max[0] - min[0]) / (max[1] - min[1]); | |
| // FIXME If get view rect after data processed? | |
| const viewRect = getViewRect(seriesModel, api, aspect); | |
| // Position may be NaN, use view rect instead | |
| if (isNaN(aspect)) { | |
| min = [viewRect.x, viewRect.y]; | |
| max = [viewRect.x + viewRect.width, viewRect.y + viewRect.height]; | |
| } | |
| const bbWidth = max[0] - min[0]; | |
| const bbHeight = max[1] - min[1]; | |
| const viewWidth = viewRect.width; | |
| const viewHeight = viewRect.height; | |
| const viewCoordSys = seriesModel.coordinateSystem = new View(); | |
| viewCoordSys.zoomLimit = seriesModel.get('scaleLimit'); | |
| viewCoordSys.setBoundingRect( | |
| min[0], min[1], bbWidth, bbHeight | |
| ); | |
| viewCoordSys.setViewRect( | |
| viewRect.x, viewRect.y, viewWidth, viewHeight | |
| ); | |
| // Update roam info | |
| viewCoordSys.setCenter(seriesModel.get('center'), api); | |
| viewCoordSys.setZoom(seriesModel.get('zoom')); | |
| viewList.push(viewCoordSys); | |
| } | |
| }); | |
| return viewList; | |
| } |