Hi

Cocoon 2.1.12

I can't get scale and resize function in the imageop block to work on cocoon 
2.1.12.

I have the following working

 * Display image with original size and colour
 * Tint image various colour


Miguel has been kindly helping me, but he uses cocoon 2.2. Miguel has it 
working on 2.2, see below.

Please, has anyone got imageop scale and resize working on 2.1.12?

Thanks

Peter



On 17/09/2014 07:11, Miguel wrote:
I've done some test and modulo in cocoon 2.2 project works fine. I describe 
step by step:

a) Include dependency into pom file of my project:

<dependency>
      <groupId>org.apache.cocoon</groupId>
      <artifactId>cocoon-imageop-impl</artifactId>
      <version>1.0.0-SNAPSHOT</version>
</dependency>

b) Include test map:match into sitemap.xmap:

<map:match pattern="prueba/*/scale-*-*">
        <map:read type="image-op-scale" src="themer/themes/common/images/{1}">
          <map:parameter name="scale-scale" value="{2}" />
          <map:parameter name="output-format" value="{3}" />
        </map:read>
      </map:match>

      <map:match pattern="prueba/*/resize-*-*">
        <map:read type="image-op-resize" src="themer/themes/common/images/{1}">
          <map:parameter name="size-width" value="{2}" />
          <map:parameter name="size-height" value="{3}" />
        </map:read>
      </map:match>

"themer/themes/common/images/" is the route to my images's folder

c) start my project and I test:

* http://localhost:8080/prueba/audio.gif/scale-2.5-jpg
* http://localhost:8080/prueba/audio.gif/resize-100-50

All works fine.


El 16/09/2014 22:27, Peter Sparkes escribió:
Hi Miguel,

My java is not good enough debug the block imageop to see what parameters's 
value arrive to class

However as

  * Display image with original size and colour
  * Tint image various colour

are working I assume there is access to image.

http://cocoon.zones.apache.org/cocoon22/cocoon-imageop-sample/ also gives 
errors on resize (scalling)

Peter



On 16/09/2014 13:52, Miguel wrote:
Hi Peter

  It seems that there isn't access to image or similar error to read it.
I advise you debug the block imageop to see what parameters's value arrive to 
class.


This block has only three bugs, and all are fixed, so I think module must works.
https://issues.apache.org/jira/browse/COCOON/component/12311751/?selectedTab=com.atlassian.jira.jira-projects-plugin:component-summary-panel



El 16/09/2014 14:03, Peter Sparkes escribió:
I am using the Samples block on cocoon 2.1.12

...//samples/blocks/imageop/logo2.png/resize-50-50 gives the following error:

java.awt.image.ImagingOpException: Unable to transform src image

Cocoon stacktrace[hide]

*Failed to process reader*
context://samples/blocks/imageop/sitemap.xmap - 46:53   /<map:read 
type="image-op-resize">/
context://samples/blocks/sitemap.xmap - 67:68   /<map:mount>/
context://samples/sitemap.xmap - 198:66         /<map:mount>/
context://sitemap.xmap - 1086:92        /<map:mount>/


Java stacktrace[hide]

java.awt.image.ImagingOpException: Unable to transform src image
        at java.awt.image.AffineTransformOp.filter(AffineTransformOp.java:357)
        at 
org.apache.cocoon.reading.imageop.ResizeOperation.apply(ResizeOperation.java:96)
        at 
org.apache.cocoon.reading.imageop.ImageOpReader.applyEffectsStack(ImageOpReader.java:193)
        at 
org.apache.cocoon.reading.imageop.ImageOpReader.processStream(ImageOpReader.java:123)
        at 
org.apache.cocoon.reading.ResourceReader.generate(ResourceReader.java:332)



On 16/09/2014 12:36, Miguel wrote:
Have you checked dependencies?
Have you tried to use block: cocoon-imageop-sample?
Can you show error message when you use transformer?


El 16/09/2014 13:14, Peter Sparkes escribió:
Hi Miguel,

I have implemented imageop, however, the only samples that work are:

  * Display image with original size and colour
  * Tint image various colour

I get "Unable to transform src image" for

  * Image scaling
  * Image resize

Any ideas how to get scaling and resizing working

Best wishes

Peter


On 16/09/2014 07:34, Peter Sparkes wrote:
Thank you Miguel

Peter

On 16/09/2014 07:08, Miguel wrote:
Hi Peter

block imageop-samples exist for cocoon 2.1, and you can download in: http://svn.apache.org/repos/asf/cocoon/tags/cocoon-2.1/RELEASE_2_1_12/src/blocks/imageop



El 15/09/2014 15:57, Peter Sparkes escribió:
Hi,

Thank you all for your replies.

As I believe it will be the easiest to implement, I am going to try imgscalr.

However, As I am using cocoon 2.1, Is there a way of using http://cocoon.zones.apache.org/cocoon22/cocoon-imageop-sample/ in cocoon 2.1

Best wishes

Peter

On 12/09/2014 06:59, Miguel wrote:
Hi Peter r

You can find examples to manage images in Cocoon: http://cocoon.zones.apache.org/cocoon22/cocoon-imageop-sample/

Best regards

On 11/09/2014 16:07, Sandor Szatmari wrote:
I use JAI to dynamically resize images for my site. There are lot of examples if you google 'JAI image resize'. I store higher res images and downscale them on the fly to the right size for the context they will be used in. I wrote a plain old servlet to do it, but I'm sure it could be done in cocoon too.

Sandor

On Sep 11, 2014, at 10:38, Javier Puerto <jpue...@gmail.com <mailto:jpue...@gmail.com>> wrote:

Hi Peter,

If you can use ImageMagick, you can try with: http://im4java.sourceforge.net/

2014-09-11 16:27 GMT+02:00 Edward David <eda...@ucalgary.ca 
<mailto:eda...@ucalgary.ca>>:

    Peter,
    There are numerous image resizer programs out there.
    Check out this Free Picture Resizer at
    http://download.cnet.com/Free-Picture-Resizer/3000-12511_4-10297789.html


    Thanks,
    ___________________
    Edward David
    Information Technologies Services,
    Libraries and Cultural Resources,
    The University of Calgary
    Phone: (403) 220-3383 <tel:%28403%29%20220-3383>
    Fax: (403) 282-1218 <tel:%28403%29%20282-1218>

    -----Original Message-----
    From: Peter Sparkes [mailto:pe...@didm.co.uk <mailto:pe...@didm.co.uk>]
    Sent: September-11-14 8:23 AM
    To: users@cocoon.apache.org <mailto:users@cocoon.apache.org> >> Cocoon users
    Subject: Resize images

    Hi,

    I currently have a cocoon application which enables the site owner to 
upload images
    and then within the upload javascript uses java to move the images to the 
required
    directory.

    Most of the uploaded images are large and therefore they are  slow in 
displaying in
    a web page.

    I, therefore, wish to resize them before saving them.

    I am not sure how to do it.

    Please, can anyone help

    Thanks

    Peter

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