createView.js
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var View = require("../../coord/View");
var _layout = require("../../util/layout");
var getLayoutRect = _layout.getLayoutRect;
var bbox = require("zrender/lib/core/bbox");
/*
* 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
function getViewRect(seriesModel, api, aspect) {
var option = seriesModel.getBoxLayoutParams();
option.aspect = aspect;
return getLayoutRect(option, {
width: api.getWidth(),
height: api.getHeight()
});
}
function _default(ecModel, api) {
var viewList = [];
ecModel.eachSeriesByType('graph', function (seriesModel) {
var coordSysType = seriesModel.get('coordinateSystem');
if (!coordSysType || coordSysType === 'view') {
var data = seriesModel.getData();
var positions = data.mapArray(function (idx) {
var itemModel = data.getItemModel(idx);
return [+itemModel.get('x'), +itemModel.get('y')];
});
var min = [];
var max = [];
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;
}
var aspect = (max[0] - min[0]) / (max[1] - min[1]); // FIXME If get view rect after data processed?
var 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];
}
var bbWidth = max[0] - min[0];
var bbHeight = max[1] - min[1];
var viewWidth = viewRect.width;
var viewHeight = viewRect.height;
var 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'));
viewCoordSys.setZoom(seriesModel.get('zoom'));
viewList.push(viewCoordSys);
}
});
return viewList;
}
module.exports = _default;