define(function (require) { // FIXME Where to create the simple view coordinate system var View = require('../../coord/View'); var layout = require('../../util/layout'); var bbox = require('zrender/core/bbox'); function getViewRect(seriesModel, api, aspect) { var option = seriesModel.getBoxLayoutParams(); option.aspect = aspect; return layout.getLayoutRect(option, { width: api.getWidth(), height: api.getHeight() }); } return function (ecModel, api) { var viewList = []; ecModel.eachSeriesByType('graph', function (seriesModel) { var coordSysType = seriesModel.get('coordinateSystem'); if (!coordSysType || coordSysType === 'view') { var viewCoordSys = new View(); viewList.push(viewCoordSys); 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; 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')); } }); return viewList; }; });