title: if/else statement with ng-src and ng-repeat
body: <p>I'm trying to write an if/else statement and what I want to happen is that if the condition is true I want to display a picture and if it's false another picture.</p>
  
  <p>This is my controller:</p>
  
  <pre><code>$scope.getFeatureNo = function (thisCase) {
          if (thisCase.featureno == 1) {
              return red_light;
          }
          else {
              return amber_light;
          }
  </code></pre>
  
  <p>If this case is equal to 1 it should display an red light that is saved in the same folder where my index.html file is stored.</p>
  
  <p>This is my HTML. I'm using ng-repeat because I want to make a table.</p>
  
  <pre><code>  &lt;md-grid-tile ng-repeat-start="thisCase in caselist"&gt;
          {{getFeatureNo(thisCase)}}
    &lt;/md-grid-tile&gt;
  </code></pre>
  
  <p>I know that I have to use ng-src but i don't know how i would use it in this case.
  Also to if this help a bit more this is my data.</p>
  
  <pre><code>    {
      "SchemeCaseID": "122^239",
      "featureno": "1",
      "slide": "LC",
      "malignancy": "1",
      "noParticipantsHit": 46,
      "noParticipantsMissed": 733,
      "noParticipantsHitNormal": 3,
      "noParticipantsHitBenign": 12,
      "noParticipantsHitMalignant": 31,
      "typeidx": "1",
      "coords": "0.33217993079584773:0.2051948051948052,0.42560553633217996:0.2025974025974026,0.5051903114186851:0.23376623376623376,0.5536332179930796:0.2779220779220779,0.5813148788927336:0.3220779220779221,0.5951557093425606:0.36103896103896105,0.5813148788927336:0.38961038961038963,0.5155709342560554:0.3974025974025974,0.4290657439446367:0.35324675324675325,0.33217993079584773:0.3012987012987013,0.314878892733564:0.2857142857142857,0.314878892733564:0.2857142857142857"
    },
  
  
  
        {
      "SchemeCaseID": "122^240",
      "featureno": "2",
      "slide": "LC",
      "malignancy": "2",
      "noParticipantsHit": 110,
      "noParticipantsMissed": 669,
      "noParticipantsHitNormal": 7,
      "noParticipantsHitBenign": 76,
      "noParticipantsHitMalignant": 27,
      "typeidx": "7",
      "coords": "0.0034602076124567475:0.2545454545454545,0.02768166089965398:0.2545454545454545,0.04844290657439446:0.2805194805194805,0.03460207612456748:0.3012987012987013,0.01384083044982699:0.3142857142857143,0.010380622837370242:0.3142857142857143,0.010380622837370242:0.3142857142857143"
    },
  </code></pre>
  
  <p>All the help is much appreciated and I'm sorry for my bad English. It's not my first language.</p>