How to export cordinates of objects in Maya composition to a text file

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  01 January 2013
How to export cordinates of objects in Maya composition to a text file


Let's say, I have 50 objects in my Maya composition and there is an animation with 3000 frames. All the objects are moving during the animation. I need to export the coordinates of objects as a list (sequence) with the order of frames in to a text files. What is the easiest way for this?

Thank you.
  01 January 2013
this seems to work:

global proc Export_Frames_Coordinates ()
	int $fileId;
	string $animName = `file -q -shn -sn`;//gets the name of the scene
	string $exportName = toNativePath(`workspace -q -fn` + "/MyExport/" + $animName + ".txt");//.txt file
	string $allObj [] = `ls -l -sl`;//lists the selected objects
	//gets the animation range
	int $startFrame = `playbackOptions -q -minTime`;
	int $endFrame = `playbackOptions -q -maxTime`;
	currentTime -e $startFrame;
	int $getCurrentTime = `currentTime -q`;
	sysFile -makeDir `dirname ($exportName)`;//creates the file and the directory (if it doesn't already exists)
	$fileId=`fopen $exportName "w"`;//open the txt file
	for ( $getCurrentTime ; $getCurrentTime < ($endFrame+1) ; $getCurrentTime + 1) //let's run through the animation
		string $frame = $getCurrentTime;
		fprint $fileId ("frame " + $frame + "\n");//writes current frame in the file
		for ($each in $allObj)
		    float $coordinates [3] = `xform -q -ws -t $each`;
			fprint $fileId ("coordinates of " + $each + "\n");
			fprint $fileId ($coordinates [0] + "|" + $coordinates [1] + "|" + $coordinates [2] + "|" + "\n");//writes coordinates
		currentTime -e ($getCurrentTime + 1) -u true;
		$getCurrentTime = `currentTime -q`;

	fclose $fileId;//closes the file

Last edited by depakeen : 01 January 2013 at 05:04 PM.
  01 January 2013
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