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PImage resize() (Read 780 times)
stopfocus
PImage resize()
Apr 28th, 2010, 12:51am  
Why does the following code create 2 images of the same size? I would expect it to make one image width 100 and one image width 200!

////////////////////////////////////
PImage one;
PImage two;

void setup(){


 size(400,400);


 one = loadImage("squibles.jpg");

 two=one;

 one.resize(100,0);
 two.resize(200,0);

 image(two,0,0);
 image(one,200,200);
}
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PhiLho 
Re: PImage resize()
Reply #1 - Apr 28th, 2010, 12:59am  
two = one;
You don't copy the image (use get() for that), you make two to have the same reference as one.
So the two resize() calls act on the same image.
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stopfocus
Re: PImage resize()
Reply #2 - Apr 28th, 2010, 1:04am  
I raced back here after I checked the docks, I should know better.

How come when you smo.clone() it throws the java.lang.CloneNotSupportedException ?

Why does
 two=(PImage)one.clone();
not work?
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PhiLho 
Re: PImage resize()
Reply #3 - Apr 28th, 2010, 1:23am  
Are you sure it throws this exception (when running)
Or you have a compilation error telling you must catch this exception
clone() JavaDoc:
Quote:
Duplicate an image, [...]. This is implemented as an override of Object.clone(). We recommend using get() instead, because it prevents you from needing to catch the CloneNotSupportedException, and from doing a cast from the result.

get() just calls clone() with proper incantations...
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stopfocus
Re: PImage resize()
Reply #4 - Apr 28th, 2010, 2:15am  
It indeed tells me I have to catch the exception. I need to be more careful with my wording.

O get..... Yeah I should have done that the whole time and managed to miss that.

If you check the references for get()

http://processing.org/reference/PImage_get_.html is not among them you have to look under PImage specifically. Thats a bit confusing but it is still my fault for hastily reading through the docs  Undecided

Thank you for your reply.
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