[quote author=lookang link=topic=758.msg5077#msg5077 date=1259716703]
I must use tools from 3DDrawingpanel,, and im begin develop by 2D Drawingpanel so im try use for example
(3Dparticle:A 3D particle) on drawing panel 24 so when i make it appear this massage for me
(THIS ELEMENT CAN NOT BE ADDED TO THIS PARENT)
[/quote]

If you [b]must[/b] use 3D particle, u need to start a new 3D frame[img]http://www.um.es/fem/EjsWiki/uploads/Main/ElementsDisplay3DPanel.gif[/img], because this source has a 2D frame at the beginning.

are you trying to make a 3D simple spring mass system? if you are, then u need to start a new 3D frame, add the 3D objects one by one if they were previously made in 2D objects. If they are previously in 3D, then copy and paste it should work.[img]http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=758.0;attach=1511;image[/img]
I have added it for u already and the source is in a zip attached below http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=758.0;attach=1513

is that what u want?