Re: overlay images retrieved from a Database
So is my next step dropping apache image taglib and use the classic JAVA 2d
api
mikemjt wrote:
Hi there, I have a image of a map and want to overlay a set of images with
x y coords from a database.
This is my code which does not work!
img:image
src=/images/map_01.gif
dir=generated
name=map_rendered.jpg
attributes=alt='A sample image'
refresh=true
quality=1.0
img:resize scale=100% /
!--load all points to map --
c:forEach var=poimaps
items=${requestScope.poimaps}
img:overlay x=${poimaps.x_id}
y=${poimpas.y_id} color=0xff tolerance=35
img:image
src=/images/${poimaps.imageName}.gif /img:image
/img:overlay
/c:forEach
/img:image
This is the error message!
javax.servlet.ServletException: Overlay must be a nested tag of Image Tag!
Help would be appreciated
Mike greece...
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Re: overlay images retrieved from a Database
Hang on, I've got an idea that might work. I'll post back in a little
bit - gotta grab some lunch!
On 10/22/07, mikemjt [EMAIL PROTECTED] wrote:
So is my next step dropping apache image taglib and use the classic JAVA 2d
api
mikemjt wrote:
Hi there, I have a image of a map and want to overlay a set of images with
x y coords from a database.
This is my code which does not work!
img:image
src=/images/map_01.gif
dir=generated
name=map_rendered.jpg
attributes=alt='A sample image'
refresh=true
quality=1.0
img:resize scale=100% /
!--load all points to map --
c:forEach var=poimaps
items=${requestScope.poimaps}
img:overlay x=${poimaps.x_id}
y=${poimpas.y_id} color=0xff tolerance=35
img:image
src=/images/${poimaps.imageName}.gif /img:image
/img:overlay
/c:forEach
/img:image
This is the error message!
javax.servlet.ServletException: Overlay must be a nested tag of Image Tag!
Help would be appreciated
Mike greece...
--
View this message in context:
http://www.nabble.com/overlay-images-retrieved-from-a-Database-tf4666946.html#a13343246
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--
Kris Schneider mailto:[EMAIL PROTECTED]
directThought http://www.directThought.com/
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Re: overlay images retrieved from a Database
Here's an untested idea. What if you use a proxy tag to satisfy
overlay's parenting constraints? You'd do something like:
img:image src=/images/map_01.gif
dir=generated
name=map_rendered.jpg
attributes=alt='A sample image'
refresh=true
quality=1.0
img:resize scale=100% /
!--load all points to map --
c:forEach var=poimaps items=${requestScope.poimaps}
imgHelper:proxy
img:overlay x=${poimaps.x_id}
y=${poimpas.y_id}
color=0xff tolerance=35
img:image src=/images/${poimaps.imageName}.gif/
/img:overlay
imgHelper:proxy
/c:forEach
/img:image
Here's the code for the proxy tag:
package com.directthought.taglibs.image;
import com.mullassery.imaging.Imaging;
import java.awt.image.BufferedImage;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.BodyTagSupport;
import javax.servlet.jsp.tagext.TryCatchFinally;
import org.apache.taglibs.image.ImageHolder;
public class ProxyTag extends BodyTagSupport implements
TryCatchFinally, ImageHolder {
private ImageHolder ancestor;
public ProxyTag() {
super();
}
public int doStartTag() throws JspException {
this.ancestor = (ImageHolder)findAncestorWithClass(this,
ImageHolder.class);
if (this.ancestor == null) {
throw new JspException(ProxyTag could not find an
ImageHolder ancestor);
}
return EVAL_BODY_BUFFERED;
}
public void doCatch(Throwable t) {
// no-op
}
public void doFinally() {
this.ancestor = null;
}
public BufferedImage getImage() {
return this.ancestor.getImage();
}
public void setImage(BufferedImage image) {
this.ancestor.setImage(image);
}
public Imaging getImaging() {
return this.ancestor.getImaging();
}
}
On 10/22/07, Kris Schneider [EMAIL PROTECTED] wrote:
Hang on, I've got an idea that might work. I'll post back in a little
bit - gotta grab some lunch!
On 10/22/07, mikemjt [EMAIL PROTECTED] wrote:
So is my next step dropping apache image taglib and use the classic JAVA 2d
api
mikemjt wrote:
Hi there, I have a image of a map and want to overlay a set of images with
x y coords from a database.
This is my code which does not work!
img:image
src=/images/map_01.gif
dir=generated
name=map_rendered.jpg
attributes=alt='A sample image'
refresh=true
quality=1.0
img:resize scale=100% /
!--load all points to map --
c:forEach var=poimaps
items=${requestScope.poimaps}
img:overlay x=${poimaps.x_id}
y=${poimpas.y_id} color=0xff tolerance=35
img:image
src=/images/${poimaps.imageName}.gif /img:image
/img:overlay
/c:forEach
/img:image
This is the error message!
javax.servlet.ServletException: Overlay must be a nested tag of Image Tag!
Help would be appreciated
Mike greece...
--
View this message in context:
http://www.nabble.com/overlay-images-retrieved-from-a-Database-tf4666946.html#a13343246
Sent from the Taglibs - User mailing list archive at Nabble.com.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
--
Kris Schneider mailto:[EMAIL PROTECTED]
directThought http://www.directThought.com/
--
Kris Schneider mailto:[EMAIL PROTECTED]
directThought http://www.directThought.com/
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: overlay images retrieved from a Database
For better or worse, img:overlay appears to require that it's
parent tag (not just an ancestor) be an instance of
org.apache.taglibs.image.ImageHolder. In your case, c:forEach is the
parent tag so the exception gets thrown.
On 10/21/07, mikemjt [EMAIL PROTECTED] wrote:
Hi there, I have a image of a map and want to overlay a set of images with x
y coords from a database.
This is my code which does not work!
img:image
src=/images/map_01.gif
dir=generated
name=map_rendered.jpg
attributes=alt='A sample image'
refresh=true
quality=1.0
img:resize scale=100% /
!--load all points to map --
c:forEach var=poimaps
items=${requestScope.poimaps}
img:overlay x=${poimaps.x_id}
y=${poimpas.y_id} color=0xff tolerance=35
img:image
src=/images/${poimaps.imageName}.gif /img:image
/img:overlay
/c:forEach
/img:image
This is the error message!
javax.servlet.ServletException: Overlay must be a nested tag of Image Tag!
Help would be appreciated
Mike greece...
--
View this message in context:
http://www.nabble.com/overlay-images-retrieved-from-a-Database-tf4666946.html#a13331683
Sent from the Taglibs - User mailing list archive at Nabble.com.
--
Kris Schneider mailto:[EMAIL PROTECTED]
directThought http://www.directThought.com/
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: overlay images retrieved from a Database
Thanks Kris, got the what you are saying can't find any samples for what
I am looking for. Doesn't anyone use the image tag lib to generate on the
fly overlayed images?
Mike greece...
Kris Schneider wrote:
For better or worse, img:overlay appears to require that it's
parent tag (not just an ancestor) be an instance of
org.apache.taglibs.image.ImageHolder. In your case, c:forEach is the
parent tag so the exception gets thrown.
On 10/21/07, mikemjt [EMAIL PROTECTED] wrote:
Hi there, I have a image of a map and want to overlay a set of images
with x
y coords from a database.
This is my code which does not work!
img:image
src=/images/map_01.gif
dir=generated
name=map_rendered.jpg
attributes=alt='A sample image'
refresh=true
quality=1.0
img:resize scale=100% /
!--load all points to map --
c:forEach var=poimaps
items=${requestScope.poimaps}
img:overlay x=${poimaps.x_id}
y=${poimpas.y_id} color=0xff tolerance=35
img:image
src=/images/${poimaps.imageName}.gif /img:image
/img:overlay
/c:forEach
/img:image
This is the error message!
javax.servlet.ServletException: Overlay must be a nested tag of Image
Tag!
Help would be appreciated
Mike greece...
--
View this message in context:
http://www.nabble.com/overlay-images-retrieved-from-a-Database-tf4666946.html#a13331683
Sent from the Taglibs - User mailing list archive at Nabble.com.
--
Kris Schneider mailto:[EMAIL PROTECTED]
directThought http://www.directThought.com/
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
--
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http://www.nabble.com/overlay-images-retrieved-from-a-Database-tf4666946.html#a13337022
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