Angular Js 加载图表数据 [英] Angular Js Loading data for Chart

问题描述

我正在尝试使用 ng-repeat 创建图表(使用 Chart.js Lib).

PLUNKER

HTML:

<div class="bar-chart-box" ng-repeat="ocw.modules 中的模块"><canvas class="chart chart-bar" data="{{module.data}}" labels="{{module.labels}}" series="{{module.series}}"></canvas>

JS:

app.controller('jsonServerBox', function($scope, $http) {var json = {模块":[{"系列":"系列A","数据":["90", "99", "80", "91", "76", "75", "60", "67", "59", "55"],标签":[01"、02"、03"、04"、05"、06"、07"、08"、09"、10"]},{"系列":"系列B","数据":["90", "99", "80", "91", "76", "75", "60", "67", "59", "55"],标签":[01"、02"、03"、04"、05"、06"、07"、08"、09"、10"]}]};$scope.ocw = json;});

我收到以下错误:

语法错误:令牌module.data"是意外的，期望在表达式 [{{module.data}}] 的第 3 列处出现 [:]，从 [module.data}}] 开始.

请帮忙.

解决方案

直接从 View 分配范围变量，如 data="module.data" labels="module.labels" series="module.series".

在提供数据时不要使用 interpolation 指令 &指令标签.因为 chart.js 实现是基于隔离作用域

HTML

<div class="bar-chart-box" ng-repeat="ocw.modules 中的模块"><canvas class="chart chart-bar" data="module.data" labels="module.labels" series="{{module.series}}"></canvas>

这对你有帮助.谢谢.

更新 1:

实际上你错过了几件事.

"series": ["SeriesA"],数据":[[90"，99"，80"，91"，76"，75"，60"，67"，59"，55"]]，

代码中的更改是

1. Wrap Series inside array 将 "series": "SeriesA" 改为 "series": ["SeriesA"]
2. 将数据数组包装在数组中，因为它以多维数组作为输入.

查看 Working Plunkr 了解更多信息.>

谢谢.

I am trying to create charts( Using Chart.js Lib ) using ng-repeat.

EDIT : PLUNKER

HTML:

<div class="graph-display" ng-controller="jsonServerBox">
<div class="bar-chart-box" ng-repeat="module in ocw.modules"> 
  <canvas class="chart chart-bar" data="{{module.data}}" labels="{{module.labels}}" series="{{module.series}}"></canvas>
</div>
</div>

JS:

app.controller('jsonServerBox', function($scope, $http) {
  var json = {"modules":[
                {
                   "series":"SeriesA",
                   "data":["90", "99", "80", "91", "76", "75", "60", "67", "59", "55"],
                   "labels":["01", "02", "03", "04", "05", "06", "07","08","09","10"]
                },

                {
                   "series":"SeriesB",
                   "data":["90", "99", "80", "91", "76", "75", "60", "67", "59", "55"],
                   "labels":["01", "02", "03", "04", "05", "06", "07","08","09","10"]
                }

        ]}; 
    $scope.ocw = json;
    });

And I'm getting following error:

Syntax Error: Token 'module.data' is unexpected, expecting [:] at column 3 of the expression [{{module.data}}] starting at [module.data}}].

Please help.

解决方案

Assign scope variables directly from View like data="module.data" labels="module.labels" series="module.series".

Don't use interpolution directive while providing data & lables to directive. Because the chart.js implementation is based on isolated scope

HTML

<div class="graph-display" ng-controller="jsonServerBox">
<div class="bar-chart-box" ng-repeat="module in ocw.modules"> 
  <canvas class="chart chart-bar" data="module.data" labels="module.labels" series="{{module.series}}"></canvas>
</div>
</div>

This could help you. Thanks.

Update 1:

Actually you were missed couple of thing.

"series": ["SeriesA"],
"data": [["90", "99", "80", "91", "76", "75", "60", "67", "59", "55"]],

Changes in your code are

1. Wrap Series inside array changed "series": "SeriesA", to "series": ["SeriesA"]
2. Wrap data array inside array because it takes dimensional array as an input.

Check Working Plunkr for more info.

Thanks.

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