| import * as zrUtil from 'zrender/src/core/util'; |
| export default function (ecModel) { |
| var processedMapType = {}; |
| ecModel.eachSeriesByType('map', function (mapSeries) { |
| var mapType = mapSeries.getMapType(); |
| |
| if (mapSeries.getHostGeoModel() || processedMapType[mapType]) { |
| return; |
| } |
| |
| var mapSymbolOffsets = {}; |
| zrUtil.each(mapSeries.seriesGroup, function (subMapSeries) { |
| var geo = subMapSeries.coordinateSystem; |
| var data = subMapSeries.originalData; |
| |
| if (subMapSeries.get('showLegendSymbol') && ecModel.getComponent('legend')) { |
| data.each('value', function (value, idx) { |
| var name = data.getName(idx); |
| var region = geo.getRegion(name); // If input series.data is [11, 22, '-'/null/undefined, 44], |
| // it will be filled with NaN: [11, 22, NaN, 44] and NaN will |
| // not be drawn. So here must validate if value is NaN. |
| |
| if (!region || isNaN(value)) { |
| return; |
| } |
| |
| var offset = mapSymbolOffsets[name] || 0; |
| var point = geo.dataToPoint(region.center); |
| mapSymbolOffsets[name] = offset + 1; |
| data.setItemLayout(idx, { |
| point: point, |
| offset: offset |
| }); |
| }); |
| } |
| }); // Show label of those region not has legendSymbol(which is offset 0) |
| |
| var data = mapSeries.getData(); |
| data.each(function (idx) { |
| var name = data.getName(idx); |
| var layout = data.getItemLayout(idx) || {}; |
| layout.showLabel = !mapSymbolOffsets[name]; |
| data.setItemLayout(idx, layout); |
| }); |
| processedMapType[mapType] = true; |
| }); |
| } |