unserver-unify/src/app/mystudy/knowledgeradarchart.html

<div ng-controller="KnowledgeRadarChartCtrl as ctrl">
  <div class="panel">
    <div class="panel-body">
      <div class="col-md-4">
        <bb-dropdown model="ctrl.selectedID" options="ctrl.recordOpts" style="margin:20%">
        </bb-dropdown>
      </div>
      <div class="ibox-content" style="margin-top:1%;">
        <div ng-if="showChart">
          <div class="col-md-12">
            <h3 translate="">
              Knowledge Radar Chart
            </h3>
          </div>
          <div class="col-md-8">
            <canvas chart-data="chartData" chart-legend="radarChart" chart-options="chartOptions" tc-chartjs-radar="">
            </canvas>
          </div>
          <div class="col-md-4">
            <div chart-legend="radarChart" class="tc-chart-js-legend" tc-chartjs-legend="">
            </div>
          </div>
        </div>
        <div ng-if="!showChart">
          <no-record>
          </no-record>
        </div>
      </div>
    </div>
  </div>
</div>