Qt编写地图实现闪烁点图的示例代码

//核心代码
QString Echarts::newChartPoint()
{
	int cityNameCount = cityName.count();
	int cityValueCount = cityValue.count();
	int cityPointCount = cityPoint.count();
	if (cityNameCount != cityValueCount || cityValueCount != cityPointCount) {
		return "";
	}

	QStringList body;

	//添加对应的值,值越大圆越大
	QStringList values;
	for (int i = 0; i < cityNameCount; i++) {
		values << QString("{name: '%1', value: %2}").arg(cityName.at(i)).arg(cityValue.at(i));
	}

	//添加对应的经纬度
	QStringList points;
	for (int i = 0; i < cityNameCount; i++) {
		points << QString("'%1':[%2]").arg(cityName.at(i)).arg(cityPoint.at(i));
	}

	body << QString("  var data = [%1]").arg(values.join(","));
	body << QString("  var geoCoordMap = {%1};").arg(points.join(","));

	//转换数据
	QStringList datas;
	datas << QString("var convertData = function (data) {");
	datas << QString("  var res = [];");
	datas << QString("  for (var i = 0; i < data.length; i++) {");
	datas << QString("    var geoCoord = geoCoordMap[data[i].name];");
	datas << QString("    if (geoCoord) {");
	datas << QString("      res.push({");
	datas << QString("        name: data[i].name,");
	datas << QString("        value: geoCoord.concat(data[i].value)");
	datas << QString("      });");
	datas << QString("    }");
	datas << QString("  }");
	datas << QString("  return res;");
	datas << QString("};");
	body << "  " + datas.join("\r\n  ");
	body << "";

	QStringList optionBase = getOptionBase();
	QStringList optionGeo = getOptionGeo();

	QStringList optionSeries;
	optionSeries << QString("      name: '%1',").arg(tipTitle);
	optionSeries << QString("      type: 'effectScatter',");
	optionSeries << QString("      coordinateSystem: 'geo',");
	optionSeries << QString("      data: convertData(data.sort(function (a, b) {");
	optionSeries << QString("          return b.value - a.value;");
	//数量大小,可以固定死
	optionSeries << QString("      }).slice(0, %1)),").arg(cityNameCount);
	optionSeries << QString("      symbolSize: function (val) {");
	optionSeries << QString("        return val[2] / 10;");
	optionSeries << QString("      },");
	optionSeries << QString("      showEffectOn: 'render',");
	optionSeries << QString("      rippleEffect: {");
	optionSeries << QString("        brushType: 'stroke'");
	optionSeries << QString("      },");
	optionSeries << QString("      hoverAnimation: true,");
	optionSeries << QString("      label: {");
	optionSeries << QString("        nORMal: {");
	optionSeries << QString("          formatter: '{b}',");
	optionSeries << QString("          position: 'right',");
	optionSeries << QString("          show: true");
	optionSeries << QString("        }");
	optionSeries << QString("      },");
	optionSeries << QString("      itemStyle: {");
	optionSeries << QString("        normal: {");
	optionSeries << QString("          color: '%1',").arg(areaColor.name());
	optionSeries << QString("          shadowBlur: 10,");
	optionSeries << QString("          shadowColor: '#333'");
	optionSeries << QString("        }");
	optionSeries << QString("      },");
	optionSeries << QString("      zlevel: 1");

	QStringList option;
	option << optionBase.join("\r\n");
	option << optionGeo.join("\r\n");
	option << "    series: [{";
	option << optionSeries.join("\r\n");
	option << "      }";
	option << "    ]";

	body << "  option = {";
	body << option.join("\r\n");
	body << "  };";

	return newChart(body.join("\r\n"));
}

//使用代码
QStringList cityName, cityValue, cityPoint;
cityName << "上海" << "北京" << "成都" << "武汉" << "厦门" << "广州";
cityPoint << "121.48,31.22" << "116.46,39.92" << "104.06,30.67" << "114.31,30.52" << "118.1,24.46" << "113.23,23.16";
cityValue << "250" << "220" << "150" << "180" << "140" << "170";

echarts->setCityName(cityName);
echarts->setCityPoint(cityPoint);
echarts->setCityValue(cityValue);
echarts->setZoom(1.0);
echarts->newChartPoint();