条形图上的 jqplot 工具提示

发布于 2024-10-15 21:56:11 字数 626 浏览 3 评论 0原文

我正在使用 jquery 插件 jqplot 来绘制一些条形图。 悬停时,我想在工具提示上显示栏的刻度及其值。我已经尝试过

highlighter: { show: true, 
            showTooltip: true,      // show a tooltip with data point values.
            tooltipLocation: 'nw',  // location of tooltip: n, ne, e, se, s, sw, w, nw.
            tooltipAxes: 'both',    // which axis values to display in the tooltip, x, y or both.
            lineWidthAdjust: 2.5   // pixels to add to the size line stroking the data point marker
            }

,但没有成功。条形图在视觉上变得更亮,顶部有一个小点(理想情况下它会消失——可能来自折线图渲染器的东西),但任何地方都没有工具提示。有人知道我该怎么做吗?我会有很多条形图,因此如果我只将它们显示在那里,x 轴就会变得混乱并且有点混乱。

I'm using the jquery plugin jqplot for plotting some bar charts.
on hover, I'd like to display the tick for the bar and its value on a tooltip. I've tried

highlighter: { show: true, 
            showTooltip: true,      // show a tooltip with data point values.
            tooltipLocation: 'nw',  // location of tooltip: n, ne, e, se, s, sw, w, nw.
            tooltipAxes: 'both',    // which axis values to display in the tooltip, x, y or both.
            lineWidthAdjust: 2.5   // pixels to add to the size line stroking the data point marker
            }

but it doesn't work. the bar visually gets lighter, and there's a small dot on the top (which would ideally go away--probably from line chart renderer stuff), but there is no tooltip anywhere. Anyone know how I can do this? I'll have lots of bars so the x-axis will be cluttered and kind of a mess if I show them down there only.

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浮华 2024-10-22 21:56:11

我浏览 jqplot.highlighter.js 并找到一个未记录的属性:tooltipContentEditor
我用它来自定义工具提示以显示 x 轴标签。

使用这样的东西:

highlighter:{
        show:true,
        tooltipContentEditor:tooltipContentEditor
    },

function tooltipContentEditor(str, seriesIndex, pointIndex, plot) {
    // display series_label, x-axis_tick, y-axis value
    return plot.series[seriesIndex]["label"] + ", " + plot.data[seriesIndex][pointIndex];
}

I go through jqplot.highlighter.js and find an undocumented property: tooltipContentEditor.
I use it to customize the tooltip to display x-axis label.

Use something like this:

highlighter:{
        show:true,
        tooltipContentEditor:tooltipContentEditor
    },

function tooltipContentEditor(str, seriesIndex, pointIndex, plot) {
    // display series_label, x-axis_tick, y-axis value
    return plot.series[seriesIndex]["label"] + ", " + plot.data[seriesIndex][pointIndex];
}
牵你的手,一向走下去 2024-10-22 21:56:11

没关系,我采用了一种迂回的方式通过 jquery 创建我自己的工具提示。

我保留了我的问题中的荧光笔设置(尽管您可能不需要工具提示内容)。

在我的 js 文件中,设置条形图后(在 $.jqplot('chart', ...) 之后,我设置了鼠标悬停绑定,如一些示例所示。我修改了像这样:

 $('#mychartdiv').bind('jqplotDataHighlight', 
        function (ev, seriesIndex, pointIndex, data ) {
            var mouseX = ev.pageX; //these are going to be how jquery knows where to put the div that will be our tooltip
            var mouseY = ev.pageY;
            $('#chartpseudotooltip').html(ticks_array[pointIndex] + ', ' + data[1]);
            var cssObj = {
                  'position' : 'absolute',
                  'font-weight' : 'bold',
                  'left' : mouseX + 'px', //usually needs more offset here
                  'top' : mouseY + 'px'
                };
            $('#chartpseudotooltip').css(cssObj);
            }
    );    

    $('#chartv').bind('jqplotDataUnhighlight', 
        function (ev) {
            $('#chartpseudotooltip').html('');
        }
    );

解释:
ticks_array 是先前定义的,包含 x 轴刻度字符串。 jqplot 的 data 将鼠标下的当前数据作为 [x-category-#, y-value] 类型数组。 pointIndex 具有当前突出显示的栏#。基本上我们将使用它来获取刻度字符串。

然后我设置了工具提示的样式,使其看起来靠近鼠标光标所在的位置。如果此 div 位于其他定位容器中,您可能需要从 mouseXmouseY 中减去一点。

然后,您可以在 css 中设置 #chartpseudotooltip 样式。如果您想要默认样式,只需将其添加到 jqplot.css 中的 .jqplot-highlighter-tooltip 中即可。

希望这对其他人有帮助!

nevermind, I did a roundabout way to create my own tooltip via jquery.

I left my highlighter settings as they were in my question (though you probably don't need the tooltip stuff).

In my js file after the bar chart is set up (after $.jqplot('chart', ...) I set up an on mouse hover binding, as some of the examples showed. I modified it like this:

 $('#mychartdiv').bind('jqplotDataHighlight', 
        function (ev, seriesIndex, pointIndex, data ) {
            var mouseX = ev.pageX; //these are going to be how jquery knows where to put the div that will be our tooltip
            var mouseY = ev.pageY;
            $('#chartpseudotooltip').html(ticks_array[pointIndex] + ', ' + data[1]);
            var cssObj = {
                  'position' : 'absolute',
                  'font-weight' : 'bold',
                  'left' : mouseX + 'px', //usually needs more offset here
                  'top' : mouseY + 'px'
                };
            $('#chartpseudotooltip').css(cssObj);
            }
    );    

    $('#chartv').bind('jqplotDataUnhighlight', 
        function (ev) {
            $('#chartpseudotooltip').html('');
        }
    );

explanation:
ticks_array is previously defined, containing the x axis tick strings. jqplot's data has the current data under your mouse as an [x-category-#, y-value] type array. pointIndex has the current highlighted bar #. Basically we will use this to get the tick string.

Then I styled the tooltip so that it appears close to where the mouse cursor is. You will probably need to subtract from mouseX and mouseY a bit if this div is in other positioned containers.

you can then style #chartpseudotooltip in your css. If you want the default styles you can just add it to .jqplot-highlighter-tooltip in the the jqplot.css.

hope this is helpful to others!

风流物 2024-10-22 21:56:11

我在以下链接上使用荧光笔插件的版本:

https://github.com/tryolabs/jqplot -highlighter

我正在使用的参数:

highlighter: {
    show:true,
    tooltipLocation: 'n',
    tooltipAxes: 'pieref', // exclusive to this version
    tooltipAxisX: 20, // exclusive to this version
    tooltipAxisY: 20, // exclusive to this version
    useAxesFormatters: false,
    formatString:'%s, %P',
}

新参数确保工具提示出现的固定位置。我更喜欢将它放在左上角,以避免调整容器 div 大小时出现问题。

I am using the version of the highlighter plugin on the following link:

https://github.com/tryolabs/jqplot-highlighter

The parameters I am using:

highlighter: {
    show:true,
    tooltipLocation: 'n',
    tooltipAxes: 'pieref', // exclusive to this version
    tooltipAxisX: 20, // exclusive to this version
    tooltipAxisY: 20, // exclusive to this version
    useAxesFormatters: false,
    formatString:'%s, %P',
}

The new parameters ensure a fixed location where the tooltip will appear. I prefer to place it on the upper left corner to avoid problems with resizing the container div.

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