echarts中formatter自定义换行

刺骨的言语ヽ痛彻心扉 2021-09-07 06:14 2405阅读 1赞

formatter:function(params) { 
                    let newParamsName = "";
                    //汉字匹配正则
                    let reg = new RegExp("[\\u4E00-\\u9FFF]+","g");
                    let paramsNameNumber = params.length;
                    let provideNumber = 2;  //一行显示几个字
                    // let rowNumber = Math.ceil(paramsNameNumber / provideNumber);
                    if (paramsNameNumber > provideNumber && _this.requestData.XData.length>=8) { 
                      let rowNumber = Math.ceil(paramsNameNumber / provideNumber);
                      //中文
                      if(reg.test(params)){ 
                        for (let p = 0; p < rowNumber; p++) { 
                          let tempStr = "";
                          let start = p * provideNumber;
                          let end = start + provideNumber;
                          if (p == rowNumber - 1) { 
                            tempStr = params.substring(start, paramsNameNumber);
                          } else { 
                            tempStr = params.substring(start, end) + "\n";
                          }
                          newParamsName += tempStr;
                        }
                      }else{ 
                        //非中文
                        provideNumber = 4;  //一行显示几个字
                        let rowNumber = Math.ceil(paramsNameNumber / provideNumber);
                        for (let p = 0; p < rowNumber; p++) { 
                          let tempStr = "";
                          let start = p * provideNumber;
                          let end = start + provideNumber;
                          if (p == rowNumber - 1) { 
                            tempStr = params.substring(start, paramsNameNumber);
                          } else { 
                            tempStr = params.substring(start, end) + "\n";
                          }
                          newParamsName += tempStr;
                        }
                      }
    
    
                    } else { 
                      newParamsName = params;
                    }
                    return newParamsName
                  }