flot - 浮点图:对数刻度轴的等距网格线？

我有一个图形/绘图区域，如下所示:

如您所见，网格线不是等距的。

以下是绘制刻度线和网格线的代码。由于量表是对数的，因此我发现跟随是一种方便的转换方法。

function setUpflot(){
            // setup plot
             myTestArray = getRandomData();

             var options = {
                // series  : { shadowSize: 0, splines: {show:true,lineWidth:1}},
                 series  : { },
                 xaxis   : { tickLength:0,  show: false },
                 yaxis   :{

            //position: "left",
            ticks: [[55,""],[68.75,""],[82.5,""],[96.25,""],[110,"110"],

                   [136.25,""],[165,""],[192.5,""],[220,"220"],[275,""],[330,""],

                   [385,""],[440,"440"],[550,""],[660,""],[770,""],[880,""]],


            transform:function(v){return Math.log(v*1.44);},
            tickColor:"rgba(148,129,151,0.5)",
            min: minGraphY, max:maxGraphY,show: true
                            },


        y2axis   :{
                            //position: "right",


                            ticks: [[55,""],[68.75,""],[82.5,""],[96.25,""],[110,"A2"],

                            [136.25,""],[165,""],[192.5,""],[220,"A3"],[275,""],[330,""],

                            [385,""],[440,"A4"],[550,""],[660,""],[770,""],[880,""]],

             alignTicksWithAxis: true,


            transform:function(v){return Math.log(v*1.44);},


            tickColor:"rgba(148,129,151,0.5)",


            min: minGraphY,


            max:maxGraphY,


            show: true,


            tickLength: 0
        },

                grid    : {
                borderWidth:0,
                backgroundColor:
                                       {
                    colors: ["#5d0d3f","#5d0d3f","#5d0d3f",

                              "#6e0326","#724922","#724922",

                              "#2a5631","#724922","#724922","#6e0326",

                              "#5d0d3f","#5d0d3f","#5d0d3f"]

             }
            }
          };

我需要网格线等距。我将如何实现？

谢谢

最佳答案

终于实现了。

我有一个对数刻度，所以我遵循以下

步骤1

范围:55-880

初始步骤:55,110,220,440,880

步骤2

计算初始步骤的日志

步骤3

计算日志值之间的差异-例如-value_of_log(110)-value_of_log(55)

步骤4

使用蛮力/击打试验，在“初始步骤”之间插入值，以使日志值之间的差异保持相同。

PS:我已将屏幕快照作为示例附加。

样本表


输出

希望这可以帮助 !

关于flot - 浮点图:对数刻度轴的等距网格线？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/17017663/