If you just want to show trace similar to the applet at http://www.mste.uiuc.edu/users/Murphy/MovingMan/MovingMan.html/htdocs/ntnujava/ejsuser/2/users/ntnu/fkh/dragx_pkg/dragx.propertiesFull screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Just add n trace in EJS, and enter x,y property as t and x position.
Let the applet change to [u]play mode[/u] when user starts to [u]drag[/u] the object and enter [u]pause mode[/u] when user [u]release [/u]the mouse.
Then you will get what you want! Check out the following applet (drag the blue dot).
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
Download EJS jar file(1202.1kB):double click downloaded file to run it. (3 times by 3 users) , Download EJS source (6 times by 5 users) View EJS source