• Adobe After Effects

  How get to acccess XML Elements in After Effects after importing data?

  Posted by Brian Williams on September 21, 2020 at 10:55 pm

  I posted something similar to this earlier today using JSon, but giving up on that I’ve switched to XML. Can someone show me what I am doing wrong here? I have an xml file that I am parsing through a script in After Effects, and I’m not sure how to get access to the XML elements.

  My XML file is:

  <?xml version="1.0" encoding="utf-8"?>
  <root>
      <f>
          <accelX>0.4682</accelX>
          <accelY>-0.0352</accelY>
          <accelZ>-0.9247</accelZ>
          <gyroX>0.0555</gyroX>
          <gyroY>0.004</gyroY>
          <gyroZ>-0.0684</gyroZ>
      </f>
      <f>
          <accelX>-0.4682</accelX>
          <accelY>-0.0219</accelY>
          <accelZ>-0.9186</accelZ>
          <gyroX>0.0049</gyroX>
          <gyroY>0.0851</gyroY>
          <gyroZ>-0.046</gyroZ>
      </f>
  </root>

  And my jsx file is this:

  var file = new File;
  var check = 0;
  
  var mainWindow = new Window("palette", "File Reader", undefined);
  mainWindow.orientatizzaaq1on = "column";
  
  var groupOne = mainWindow.add("group", undefined, "groupOne");
  groupOne.orientation = "row";
  var fileLocBox = groupOne.add("edittext", undefined, "Selected File Location");
  fileLocBox.size = [150, 20];
  var getFileButton = groupOne.add("button", undefined, "File...");
  getFileButton.helpTip = "Select a .json file to change the comp";
  
  var groupTwo = mainWindow.add("group", undefined, "groupTwo");
  groupTwo.orientation = "row";
  var applyButton = groupTwo.add("button", undefined, "Apply");
  
  mainWindow.center();
  mainWindow.show();
  
  getFileButton.onClick = function() {
      file = file.openDlg("Open a file", "Acceptable Files:*.xml");
      fileLocBox.text = file.fsName;
      check = 1;
      }
  
  applyButton.onClick = function() {
          if(check == 0) {
                  alert("Please select a file");
                  return false;
              } else {
                  //app.beginUndoGroup("Comp Changes");
                  var fileExtension = fileLocBox.text;
                  var fileData;
                  
                  if(fileExtension.substring(fileExtension.length-4, fileExtension.length) == "json") {
                      fileData = readJson();
                      } else {
                          switch(fileExtension.substring(fileExtension.length-3, fileExtension.length)) {
                              case "txt":
                                  //fileData = readTxt();
                              break;
                              case "xml":
                                  fileData = readXml();
                              break;
                              }
                          }
                      changeComp(fileData);
                  }
              alert("done");
     }
  
  function readXml() {
      file.open("r");
      var xmlString = file.read();
      var myXml = new XML(xmlString);
      file.close();
      return myXml;
      }
  
  function changeComp(data) {
      var nullz = app.project.activeItem.laayers.addNull();
      nullz.threeDLayer = true;
      nullz.name = "parent to me";
      for (i = 0; i < 20; i++) {
         var temp = data.f[i].accelX;
         var t =i/25;
        nullz.xRotation.setValueAtTime(t, temp);
        }
    }

  This is the line, near the end, that isn’t working:

  var temp = data.f[i].accelX;

  Am I writing this incorrectly? After Effects will create one keyframe with a value of “0”, but doesn’t finish the for…loop and doesn’t complete the script. Am I accessing these elements incorrectly?

  Filip Vandueren replied 6 years ago 2 Members · 1 Reply
• 1 Reply

• 

  Filip Vandueren

  September 22, 2020 at 7:41 am

  Maybe you need accelX[0] ?

  Haven’t tested the code

Reply to this Discussion! Login or Sign Up