Interactive image overlays

[Colin Holgate]

On Oct 7, 2009, at 4:35 PM, David Bovill wrote:

> Anyone got a stratgegy for creating clickable transparent polygonal  
> overlays
> in Rev?


Yes. Have a simpler version of the graphic, with solid colored areas  
the shape of the different items in the real picture. Store the  
imageData of that image into a variable, then check the clickloc  
against the same location in the imageData, to see what color it is.  
 From the color you can work out what to do when the user clicks.