To all you intelligent Java people... (read this one, other had wrong email)

[Graham Norman]

I am trying to create a sub image of a bufferedimage which contains a
picture.
I've divided the whole picture up into 80 by 80 pixels which gives me 7 rows
and 6 columns. (there's a bit of wasted picture which I don't care about)

Therefore each y coordinate runs from 0 to 480 in 80 increments (e.g. 7rows)
The height of the area must be no less than 480+80 which is 560.
When I return the height it tells me that:
currentImage.ge tData().getHeig ht() is: 494

And thus this error is returned:

java.awt.image. RasterFormatExc eption: (y + height) is outside raster at

sun.awt.image.I ntegerInterleav edRaster.create WritableChild(I ntegerInterleav e
dRaster.java:45 3) at

java.awt.image. BufferedImage.g etSubimage(Buff eredImage.java: 1060)

To calculate the number of columns I did integer division imageHeight/80
which gives 6.
If you double division it gives 6.175, therefore there should be 0.175 rows
of which I won't be using.

So my question is: Why does my last row go over the boundry of the origional
image?

Any help appreciated,
Gray.