how to delete a mess from a scene

Are you working on a scene editor?  To implement this, you need to write 
callback functions to detect pointer events.

Jsc3d provides a series of pointer event handlers with meaningful names, which 
can be overriden to process pointer events. These inlude:

  viewer.onmousedown
  viewer.onmousemove
  viewer.onmouseup
  viewer.onmousewheel

They have the same signature as:

  viewer.onmousexxx(x, y, button, depth, mesh)

the last parameter of which is the mesh the pointer is currently on, or null if 
none. These can be utilized to implement interactive effects.  For example, to 
print the pointed mesh on a mouse-down event, we just write codes like this:

  viewer.onmousedown = function(x, y, button, depth, mesh) {
    if (button == 0/* left button down */ && mesh)
      console.info(mesh);
  };

There's no existing handler for a click event. But it is not difficult to 
simulate it by detecting a pair of consecutive mouse-down and mouse-up events.

To remove a mesh from the scene, just use scene.removeChild() method, passing 
in the mesh to be deleted and it will be done. The documentation of this 
function is here 
http://jsc3d.googlecode.com/svn/trunk/jsc3d/docs/symbols/JSC3D.Scene.html#remove
Child.

Original comment by Humu2...@gmail.com on 24 Jul 2014 at 12:37

chetto1983 / jsc3d

how to delete a mess from a scene #86