Thread: Graphics Drawing Images/Rectangle Detecting/Deleting

Hello!

I got serveral questions about Graphics in Java.

• Is it possible to detect Drawn Images/Rectangles without knowing the x & y positions
• Is it possible remove recangles? I know it's possible via "g.clearRect" but then at the place where the rectangle was is a black recangle now probaly because i work with a transparent background with a wood pattern.
• Same question about but then with images no clearImage function found.
• So above is the option about removing but isn't it possible to replace an drawn image with another one? I tried to draw another image on a certain x & y location but it just draws over it.
• Another option (maybe, just brainstorming atm) it is possible of keeping track of positons where you draw something what if you make a seperate array with the places where the second image must come is it then possible to remove everything that Graphics has drawn (in a clean way so there are not black holes). And then just redraw everything from those arrays?

Kind regards.

PS: Sorry for bad english, was in a terrible rush when I typed this.

Depending on the contrasting of the colors you might be able to scan an image and find a rectangle.

I tried to draw another image on a certain x & y location but it just draws over it.

Yes it would.
There are some methods in Graphics2D that might be of interest to you for drawing.

Originally Posted by Norm

Depending on the contrasting of the colors you might be able to scan an image and find a rectangle.

Yes it would.
There are some methods in Graphics2D that might be of interest to you for drawing.

I can only use Graphics in JavaTV :/