`DEMO`

Question

我想在我们的网页中添加倒数饼图，饼图将按以下格式显示我们项目的重命名时间： -

**Project A**
starts in 3 weeks and 3 days

**Project B**
starts in 1 month and 2 weeks

这是实现此功能并显示上述结果的JavaSscript： -

<script src="/Resources/jquery-1.11.3.js"></script>
<script>
$(function () { 
var htmlinit = "";
htmlinit = "<image  id= 'customloader' src= '/resources/ajax-loader.gif'></image>";
$("#inserhere").after(htmlinit);
var html="<div class='ms-comm-adminLinks ms-core-defaultFont ms-noList' unselectable='on'><div class='ms-webpart-titleText' unselectable='on'><a style='color:white' href='/Lists/Counter/AllItems.aspx'> Useful Links </a> </div><ul class='ms-comm-adminLinksList' unselectable='on'>";

$.ajax({
     url: "/_api/web/lists/getbytitle('Counter')/items?$select=Title,CounterStartDate&$orderby=CounterStartDate asc",
     method: "GET",   
     headers: { "Accept": "application/json; odata=verbose" },
     success: function (data) {
        if(data.d.results.length>0){

            var items=data.d.results;
            for(var i=0;i<items.length;i++){        
                    var nurl = items[i].CounterStartDate.toString();
                    var ntitle = items[i].Title.toString();
                    var loopidcustom = "demo"+i.toString();


    var formatteddate = datediff(new Date (nurl));
    document.getElementById(loopidcustom).innerHTML = "<b>" + ntitle + "</b><br> Start Date "+ d+"<br/> Starts in  " + formatteddate +"<hr/>"  ;

    if (distance < 0) {
        //clearInterval(x);
        document.getElementById(loopidcustom).innerHTML = "";
    }




      }

        }
     },
     error: function (data) {   
     $("#customloader").hide();
     }
    });




});

function datediff(date) {
   let d1 = date;
   let d2 = now = new Date();
   if (d2.getTime() < d1.getTime()) {
     d1 = now;
     d2 = date;
   }
   let yd = d1.getYear();
   let yn = d2.getYear();
   let years = yn - yd;
   let md = d1.getMonth();
   let mn = d2.getMonth();
   let months = mn - md;
   if (months < 0) {
     years--;
     months = 12 - md + mn;
   }
   let dd = d1.getDate();
   let dn = d2.getDate();
   let days = dn - dd;
   if (days < 0) {
     months--;
     // figure out how many days there are in the last month
     d2.setMonth(mn, 0);
     days = d2.getDate() - dd + dn;
   }
   let weeks = Math.floor(days / 7);
   days = days % 7;
   if (years > 0) return years + ' years' + (months > 0 ? ' and ' + months + ' months' : '');
   if (months > 0) return months + ' months' + (weeks > 0 ? ' and ' + weeks + ' weeks' : '');
   if (weeks > 0) return weeks + ' weeks' + (days > 0 ? ' and ' + days + ' days' : '');
   return days + ' days';
}
</script>

现在我想修改它并在饼图中显示剩余的年，月，周和日，而不是仅显示文本。所以我发现这个只读的旋钮饼图有趣http://anthonyterrien.com/demo/knob/ ： -

但是当我尝试在我们的网页中测试时，我正面临着这些问题： -

我添加了以下代码来测试饼图的外观： -

<script>
    $(function($) {

        $(".knob").knob({
            change : function (value) {
                //console.log("change : " + value);
            },
            release : function (value) {
                //console.log(this.$.attr('value'));
                console.log("release : " + value);
            },
            cancel : function () {
                console.log("cancel : ", this);
            },
            /*format : function (value) {
             return value + '%';
             },*/
            draw : function () {

                // "tron" case
                if(this.$.data('skin') == 'tron') {

                    this.cursorExt = 0.3;

                    var a = this.arc(this.cv)  // Arc
                            , pa                   // Previous arc
                            , r = 1;

                    this.g.lineWidth = this.lineWidth;

                    if (this.o.displayPrevious) {
                        pa = this.arc(this.v);
                        this.g.beginPath();
                        this.g.strokeStyle = this.pColor;
                        this.g.arc(this.xy, this.xy, this.radius - this.lineWidth, pa.s, pa.e, pa.d);
                        this.g.stroke();
                    }

                    this.g.beginPath();
                    this.g.strokeStyle = r ? this.o.fgColor : this.fgColor ;
                    this.g.arc(this.xy, this.xy, this.radius - this.lineWidth, a.s, a.e, a.d);
                    this.g.stroke();

                    this.g.lineWidth = 2;
                    this.g.beginPath();
                    this.g.strokeStyle = this.o.fgColor;
                    this.g.arc( this.xy, this.xy, this.radius - this.lineWidth + 1 + this.lineWidth * 2 / 3, 0, 2 * Math.PI, false);
                    this.g.stroke();

                    return false;
                }
            }
        });

        // Example of infinite knob, iPod click wheel
        var v, up=0,down=0,i=0
                ,$idir = $("div.idir")
                ,$ival = $("div.ival")
                ,incr = function() { i++; $idir.show().html("+").fadeOut(); $ival.html(i); }
                ,decr = function() { i--; $idir.show().html("-").fadeOut(); $ival.html(i); };
        $("input.infinite").knob(
                {
                    min : 0
                    , max : 20
                    , stopper : false
                    , change : function () {
                    if(v > this.cv){
                        if(up){
                            decr();
                            up=0;
                        }else{up=1;down=0;}
                    } else {
                        if(v < this.cv){
                            if(down){
                                incr();
                                down=0;
                            }else{down=1;up=0;}
                        }
                    }
                    v = this.cv;
                }
                });
    });
</script>
<style>
    body{

        font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
        font-weight: 300;
        text-rendering: optimizelegibility;
    }
    p{font-size: 30px; line-height: 30px}
    div.demo{text-align: center; width: 280px; float: left}
    div.demo > p{font-size: 20px}
</style>

但我只得到了没有任何饼图的数字如下： -

第二个问题，现在让我说我设法正确显示饼图。然后我可以修改饼图的构建方式吗？例如在我的情况下，我希望饼图显示倒数，所以如果剩余的是1天，则饼图应该几乎完全着色。我会有不同的范围： -
- for day它可以是1到7
- 月份可以是1到12
- 几周，可以是1到4

这可能吗？

Answer 1

@john，根据您的评论，我使用roundSlider插件准备了一个示例。请查看以下演示，并告诉我它是否满足您的要求：

`DEMO`

由于示例目的，我使用了硬编码的id，您可以根据应用场景进行更改。

无法在我的页面内显示旋钮饼图，饼图现在显示

1 个答案:

`DEMO`