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Image flipping
Joined: 17 Apr 2004
Posts: 28
Image flipping
I found the error in my previous post(s) about figuring out why my
sprites wouldn`t paint: There was a `/` missing from my absolute
address variable. I fixed it. Now I need to know if there`s an easy
way in Java to flip an image. I don`t know if `flip` is the right term
for it. Okay, say there`s a sprite of a person that`s facing right. I
need to make the same sprite face left, preferably using the same image
file for both sprites. Is it possible, and if so, how can I do it?
-Michael Sullivan-
Joined: 10 Apr 2004
Posts: 19
Image flipping
Check out Graphics2D.rotate(double theta, double x, double y). That should do
what you need it to do. It first translates, then rotates, then translates
back. That should achieve a flip effect.
Dustin
Michael Sullivan <michael@...> wrote:
I found the error in my previous post(s) about figuring out why my
sprites wouldn`t paint: There was a `/` missing from my absolute
address variable. I fixed it. Now I need to know if there`s an easy
way in Java to flip an image. I don`t know if `flip` is the right term
for it. Okay, say there`s a sprite of a person that`s facing right. I
need to make the same sprite face left, preferably using the same image
file for both sprites. Is it possible, and if so, how can I do it?
-Michael Sullivan-
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Joined: 17 Apr 2004
Posts: 28
Image flipping
I looked it up in the Java API reference, but I don`t understand. How
can I use this to manipulate images. Can you give me an example?
-Michael Sullivan-
On Sat, 2004-04-24 at 19:56, Dustin Metzgar wrote:
> Check out Graphics2D.rotate(double theta, double x, double y). That should do
what you need it to do. It first translates, then rotates, then translates
back. That should achieve a flip effect.
>
> Dustin
>
>
> Michael Sullivan <michael@...> wrote:
> I found the error in my previous post(s) about figuring out why my
> sprites wouldn`t paint: There was a `/` missing from my absolute
> address variable. I fixed it. Now I need to know if there`s an easy
> way in Java to flip an image. I don`t know if `flip` is the right term
> for it. Okay, say there`s a sprite of a person that`s facing right. I
> need to make the same sprite face left, preferably using the same image
> file for both sprites. Is it possible, and if so, how can I do it?
> -Michael Sullivan-
>
>
>
> ---------------------------------
> Yahoo! Groups Links
>
> To visit your group on the web, go to:
> http://groups.yahoo.com/group/beginnersclub/
>
> To unsubscribe from this group, send an email to:
> beginnersclub-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
>
>
>
> ---------------------------------
> Do you Yahoo!?
> Yahoo! Photos: High-quality 4x6 digital prints for 25
>
> [Non-text portions of this message have been removed]
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
Joined: 10 Apr 2004
Posts: 19
Image flipping
Actually, forget what I originally said, it`s much easier than I thought. You
can draw an image using the following:
public void paint(Graphics g) {
...
g.drawImage(img, 100, 100, 164, 164, 0, 0, 64, 64, null);
...
}
Where img is an Image object and the image is 64x64. All you have to do to flip
is change the corners for the source rectangle like so:
g.drawImage(img, 100, 100, 164, 164, 64, 0, 0, 64, null);
Dustin
Michael Sullivan <michael@...> wrote:
I looked it up in the Java API reference, but I don`t understand. How
can I use this to manipulate images. Can you give me an example?
-Michael Sullivan-
On Sat, 2004-04-24 at 19:56, Dustin Metzgar wrote:
> Check out Graphics2D.rotate(double theta, double x, double y). That should do
what you need it to do. It first translates, then rotates, then translates
back. That should achieve a flip effect.
>
> Dustin
>
>
> Michael Sullivan <michael@...> wrote:
> I found the error in my previous post(s) about figuring out why my
> sprites wouldn`t paint: There was a `/` missing from my absolute
> address variable. I fixed it. Now I need to know if there`s an easy
> way in Java to flip an image. I don`t know if `flip` is the right term
> for it. Okay, say there`s a sprite of a person that`s facing right. I
> need to make the same sprite face left, preferably using the same image
> file for both sprites. Is it possible, and if so, how can I do it?
> -Michael Sullivan-
>
>
>
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Yahoo! Photos: High-quality 4x6 digital prints for 25¢
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