3D annotation: Draw line like 3D measurement tool

Question

Hello ,
          Can somebody tell me how can i draw temporary line in 3D annotation canvas using java script like "3D Measurement tool" ?   or same llike shown in "Zoom " tool right clicked and mouse drag event ..
Thanks,

Answer 1

I'm sorry I missed this request. :-(
To accomplish your goal, you could use a MouseEventHandler, which would report back mouse positions in the 3D window (known as the canvas). You can get momentary positions on events such as MouseDown or MouseUp, or if you really need it, you can obtain real-time mouse positions using MouseMove.
Here's a hunk of example code:
//===================================================
myMouseHandler = new MouseEventHandler();
myMouseHandler.onMouseDown = true; //this prop is true by default
myMouseHandler.reportAllTargets = false;
myMouseHandler.onEvent = function(event)
console.println("canvasPixelHeight = " + event.canvasPixelHeight );
console.println("canvasPixelWidth = " + event.canvasPixelWidth );
console.println("mouseX = " + event.mouseX );
console.println("mouseY = " + event.mouseY );
console.println("currentTool = " + event.currentTool );
console.println("isMouseDown = " + event.isMouseDown );
console.println("isMouseOut = " + event.isMouseOut );
console.println("isMouseOver = " + event.isMouseOver );
//Register the handler and turn the mule on
runtime.addEventHandler(myMouseHandler);
//===================================================