Get screen coordinates from 3d position

Question

Hi,<br />When I use 3d JavaScript camera's getScreenFromPosition method, the screen Y returned is always 0. The following is the test code. Did I miss anything? Is there another way to get screen coordinates from 3d?<br /><br />I'd appreciate any help.<br /><br />Xintai<br /><br />// test code ==========================<br />function v3dToScreen(v,w,h)<br />{<br />   console.println("\n v=" + v + "  w = " + w + "  h ="+ h);<br />   cam = scene.cameras.getByIndex (0);<br />    <br />   screenV = cam.getScreenFromPosition(v, w, h);<br />   console.println( " converted: mx=" + screenV.x + "    my=" + screenV.y);<br />   console.println(screenV.toString());<br />   //console.println( " pdf mouse X=" + host.mouseX + "   pdf mouse Y=" + host.mouseY);<br />}<br /><br />console.println ("Click a 3D object to test getScreenFromPosition()");<br /><br />myMouseHandler = new MouseEventHandler();<br />myMouseHandler.onMouseDown = true;<br />myMouseHandler.onEvent = function(event)<br />{<br />   if(event.isMouseDown) {<br />    console.println("====== MouseDown =======");<br />    console.println("isMouseDown           = " + event.isMouseDown );<br />    <br />    for ( i=0; i<event.hits.length; i++ )<br />    {<br />         console.println ("   hits[" + i + "].position   = " + event.hits[i].position );<br />        <br />        if (event.hits[i].target != undefined)<br />        {<br />                        v3 = vent.hits[i].position;<br />                        v3dToScreen(v3,event.canvasPixelWidth,event.canvasPixelHeight);<br />        }<br />    }<br />   }<br />}<br /><br />runtime.addEventHandler(myMouseHandler);<br /><br />// end of test code ==========================

Answer 1

Hi Xintai,
This is a feature i would also like to use. I've tried using the script that you've provided but i cant get it to work. I assume this is the javascript (.js file) that you embed into the pdf? Is this all that's needed?
If you've managed to get this working, could you let me know how you did it?
Thanks
George