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Double-buffering/image creation
Joined: 17 Apr 2004
Posts: 28
Double-buffering/image creation
If I were to create an image with code such as:
Image image = createImage(500, 500)
how would I write to it?
Joined: 14 Apr 2004
Posts: 6
Double-buffering/image creation
--- In beginnersclub@yahoogroups.com, Michael Sullivan
<michael@e...> wrote:
> If I were to create an image with code such as:
>
> Image image = createImage(500, 500)
>
> how would I write to it?
From my expereince using images you usually use a JLabel (as
JLabel`s are used to hold images) and if the image that you want is
in a file use strings to create a file path to the image and then
you use the setIcon() method (setIcon - something like that) to post
the image (via file path) in to the JLabel. I have an example I
could post if you want (just ask and I will post it).
Hope this helps
John
Joined: 17 Apr 2004
Posts: 28
Double-buffering/image creation
I`m using a Canvas to do my animation on, and adding the Canvas to a
JPanel in a JFrame...
-Michael Sullivan-
On Tue, 2004-04-20 at 16:08, testthis222001 wrote:
> --- In beginnersclub@yahoogroups.com, Michael Sullivan
> <michael@e...> wrote:
> > If I were to create an image with code such as:
> >
> > Image image = createImage(500, 500)
> >
> > how would I write to it?
>
> >From my expereince using images you usually use a JLabel (as
> JLabel`s are used to hold images) and if the image that you want is
> in a file use strings to create a file path to the image and then
> you use the setIcon() method (setIcon - something like that) to post
> the image (via file path) in to the JLabel. I have an example I
> could post if you want (just ask and I will post it).
>
> Hope this helps
> John
>
>
>
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Joined: 10 Apr 2004
Posts: 19
Double-buffering/image creation
Create a BufferedImage instead. I`ve done this double-buffering stuff before
and it`s actually not bad. The BufferedImage will give you pixel-by-pixel
access to the buffer. Also, you can call getGraphics on it. What I would
generally do is get the Graphics object from my buffered image and put my
images, lines, whatever else in it, then when I finished drawing I would copy
the whole thing over to an image in an applet or jframe.
Hope that helps.
Dustin
Michael Sullivan <michael@...> wrote:
If I were to create an image with code such as:
Image image = createImage(500, 500)
how would I write to it?
---------------------------------
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Joined: 17 Apr 2004
Posts: 28
Double-buffering/image creation
Can you use Graphics.drawImage on a BufferedImage?
On Tue, 2004-04-20 at 22:26, Dustin Metzgar wrote:
> Create a BufferedImage instead. I`ve done this double-buffering stuff before
and it`s actually not bad. The BufferedImage will give you pixel-by-pixel
access to the buffer. Also, you can call getGraphics on it. What I would
generally do is get the Graphics object from my buffered image and put my
images, lines, whatever else in it, then when I finished drawing I would copy
the whole thing over to an image in an applet or jframe.
>
> Hope that helps.
>
> Dustin
>
> Michael Sullivan <michael@...> wrote:
> If I were to create an image with code such as:
>
> Image image = createImage(500, 500)
>
> how would I write to it?
>
>
>
> ---------------------------------
> 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: 14 Apr 2004
Posts: 6
Double-buffering/image creation
Yes you can. Check out the link below for a post on the Sun Forums
that should answer your questions.
This is the example they use
graphics.drawImage((BufferedImage)list.get(i), null, i *
dividerLine, 0);
To see the code in it`s full context click on this link.
http://forum.java.sun.com/thread.jsp?
forum=20&thread=514292&tstart=0&trange=15
because the link is to long. You will have to copy and paste both
bits into the address bar. The tread is called Combining Buffered
Images. Check out all 3 posts, but the last one seems to be the
most relevent.
Hope this helps.
Regards John
--- In beginnersclub@yahoogroups.com, Michael Sullivan
<michael@e...> wrote:
> Can you use Graphics.drawImage on a BufferedImage?
>
> On Tue, 2004-04-20 at 22:26, Dustin Metzgar wrote:
> > Create a BufferedImage instead. I`ve done this double-buffering
stuff before and it`s actually not bad. The BufferedImage will give
you pixel-by-pixel access to the buffer. Also, you can call
getGraphics on it. What I would generally do is get the Graphics
object from my buffered image and put my images, lines, whatever
else in it, then when I finished drawing I would copy the whole
thing over to an image in an applet or jframe.
> >
> > Hope that helps.
> >
> > Dustin
> >
> > Michael Sullivan <michael@e...> wrote:
> > If I were to create an image with code such as:
> >
> > Image image = createImage(500, 500)
> >
> > how would I write to it?
> >
> >
> >
> > ---------------------------------
> > 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
Double-buffering/image creation
Yes you can. If you get Graphics from a BufferedImage you can use any (I think)
of the Graphics functions. I used it to paint images with image filters so I`m
sure it works.
Dustin
Michael Sullivan <michael@...> wrote:
Can you use Graphics.drawImage on a BufferedImage?
On Tue, 2004-04-20 at 22:26, Dustin Metzgar wrote:
> Create a BufferedImage instead. I`ve done this double-buffering stuff before
and it`s actually not bad. The BufferedImage will give you pixel-by-pixel
access to the buffer. Also, you can call getGraphics on it. What I would
generally do is get the Graphics object from my buffered image and put my
images, lines, whatever else in it, then when I finished drawing I would copy
the whole thing over to an image in an applet or jframe.
>
> Hope that helps.
>
> Dustin
>
> Michael Sullivan <michael@...> wrote:
> If I were to create an image with code such as:
>
> Image image = createImage(500, 500)
>
> how would I write to it?
>
>
>
> ---------------------------------
> Do you Yahoo!?
> Yahoo! Photos: High-quality 4x6 digital prints for 25
>
> [Non-text portions of this message have been removed]
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
---------------------------------
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]
Joined: 11 Apr 2004
Posts: 11
Double-buffering/image creation
testthis222001 wrote:
> --- In beginnersclub@yahoogroups.com, Michael Sullivan
> <michael@e...> wrote:
>
>>If I were to create an image with code such as:
>>
>>Image image = createImage(500, 500)
>>
>>how would I write to it?
>
>
>>From my expereince using images you usually use a JLabel (as
> JLabel`s are used to hold images) and if the image that you want is
> in a file use strings to create a file path to the image and then
> you use the setIcon() method (setIcon - something like that) to post
> the image (via file path) in to the JLabel. I have an example I
> could post if you want (just ask and I will post it).
>
> Hope this helps
> John
Out of curiosity, in which class does the createImage method
reside?
--
Dale Erwin
Salamanca 116
Pueblo Libre
Lima 21 PERU
Tel. +51(1)461-3084
Cel. +51(1)9743-6439
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Joined: 10 Apr 2004
Posts: 19
Double-buffering/image creation
The Applet class I think.
Dale Erwin <daleerwin@...> wrote:testthis222001 wrote:
> --- In beginnersclub@yahoogroups.com, Michael Sullivan
> <michael@e...> wrote:
>
>>If I were to create an image with code such as:
>>
>>Image image = createImage(500, 500)
>>
>>how would I write to it?
>
>
>>From my expereince using images you usually use a JLabel (as
> JLabel`s are used to hold images) and if the image that you want is
> in a file use strings to create a file path to the image and then
> you use the setIcon() method (setIcon - something like that) to post
> the image (via file path) in to the JLabel. I have an example I
> could post if you want (just ask and I will post it).
>
> Hope this helps
> John
Out of curiosity, in which class does the createImage method
reside?
--
Dale Erwin
Salamanca 116
Pueblo Libre
Lima 21 PERU
Tel. +51(1)461-3084
Cel. +51(1)9743-6439
DALE ERWIN`S OPERA FILES - http://www.geocities.com/dale_erwin
---------------------------------
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]
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