Make plotting visible

I plotted some shapes on a JPlane, then fill other polygons on it.but the shapes are coverd by polygons, how can I make them still visible?Thanks
[166 byte] By [ardmorea] at [2007-11-27 9:08:47]
# 1
I mean avoid overlap
ardmorea at 2007-7-12 21:47:34 > top of Java-index,Security,Cryptography...
# 2
Change their position and size.
crwooda at 2007-7-12 21:47:34 > top of Java-index,Security,Cryptography...
# 3
I mean transparent drawing, please don't clear previous drawing.
ardmorea at 2007-7-12 21:47:34 > top of Java-index,Security,Cryptography...
# 4
[url= http://java.sun.com/docs/books/tutorial/2d/advanced/compositing.html]Compositing Graphics[/url]
crwooda at 2007-7-12 21:47:34 > top of Java-index,Security,Cryptography...