How to make an image transparent?

[SashaBuilder3]

Hi everybody,


I need to build a complex chart, for this I want at first to create some painted area and then to put a map over it. The map is an image, which consists basically of black lines for state borders, main rivers and lakes on the white background. What I need is to put just these black lines, not the white background which will kill previously painted area.

Can anyone give an idea?


Thanks,

Alexandre

 

[JackMH]

Have you tried setting the background color of the map to anything with an 'alpha' factor (poacity ?) of zero.

image.setBackground(new Color(0, 0, 0, 0));

 

[palbano]

poacity? LOL darn fingers i kant trust em any farther than i can throw em! LOL -There are only 10 types of people in the world, those who understand binary and those who don't-

-pete

 

[SashaBuilder3]

Thanks JackMH!

I'll try this


Alexandre