Camera Swap Script Trouble

Posted by Mark Allen on January 26, 2009 at 12:52 am

{
 // create undo group

  app.beginUndoGroup("Swap Camera Position");

  // select the active item in the project window
  
  alert("Make sure you have a comp selected and it is has a camera called Camera 1");

  // variable for the comp

  var activeComp = app.project.activeItem;
    
  var poiX = activeComp.layer("Camera 1").transform.pointOfInterest[0];
  var poiY = activeComp.layer("Camera 1").transform.pointOfInterest[1];
  var poiZ = activeComp.layser("Camera 1").transform.pointOfInterest[2];
  var camX = activeComp.layer("Camera 1").transform.position[0];
  var camY = activeComp.layer("Camera 1").transform.position[1];
  var camZ = activeComp.layer("Camera 1").transform.position[2];
  
   activeComp.layer("Camera 1").transform.position[0] = poiX;
   activeComp.layer("Camera 1").transform.position[1] = poiY;
   activeComp.layer("Camera 1").transform.position[2] = poiZ;
   activeComp.layer("Camera 1").transform.pointOfInterest[0] = camX;
   activeComp.layer("Camera 1").transform.pointOfInterest[1] = camY;
   activeComp.layer("Camera 1").transform.pointOfInterest[2] = camZ;

  app.endUndoGroup();
  }

Okay – I’m new to writing scripts/expressions.. but I’m trying. I wanted a script that would swap the position and pointofinterest of my camera.

At first I couldn’t get it to recognize the layer I had selected, but I think I got it to recognize a layer named Camera 1 at least, so I went with that – but… it doesn’t do anything. I know I must be assigning the position value incorrectly but after about six variations and a long internet search, I’m out of ideas… help appreciated, thank you.

Mark Allen replied 17 years, 3 months ago 2 Members · 3 Replies

3 Replies

Mark Allen

January 26, 2009 at 1:06 am

 // create undo group

  app.beginUndoGroup("Swap Camera Position");

  // select the active item in the project window
  
  alert("Make sure you have a comp selected and it is has a camera called Camera 1");

  // variable for the comp

  var activeComp = app.project.activeItem;
    
  var poiX = activeComp.layer("Camera 1").transform.pointOfInterest[0];
  var poiY = activeComp.layer("Camera 1").transform.pointOfInterest[1];
  var poiZ = activeComp.layer("Camera 1").transform.pointOfInterest[2];
  var camX = activeComp.layer("Camera 1").transform.position[0];
  var camY = activeComp.layer("Camera 1").transform.position[1];
  var camZ = activeComp.layer("Camera 1").transform.position[2];
  
   activeComp.layer("Camera 1").transform.position.setValue([poiX, poiY, poiZ]);
   activeComp.layer("Camera 1").transform.pointOfInterest.setValue([camX, camY, camZ]);

  app.endUndoGroup();
  }

Quick Update – I think this is maybe how setting the value is done, but it does not think my position information is a valid float now.

Dan Ebberts
January 26, 2009 at 1:37 am

Hi Mark,

This should work:

{
// create undo group

app.beginUndoGroup(“Swap Camera Position”);

// select the active item in the project window

alert(“Make sure you have the camera selected in the active comp”);

// variable for the comp

var activeComp = app.project.activeItem;
var camLayer = activeComp.selectedLayers[0];

var poi = camLayer.transform.pointOfInterest.value;
var camPos = camLayer.transform.position.value;
camLayer.transform.position.setValue(poi);
camLayer.transform.pointOfInterest.setValue(camPos);

app.endUndoGroup();
}

Dan
Mark Allen
January 26, 2009 at 2:02 am

Thanks, Dan. I will look through this to learn a bit.

Seemed like a good script to learn from while being sort of useful (unless you count the time it took me trying to figure out how to write it. 🙂 )

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Camera Swap Script Trouble