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From Peter Sparkes <pe...@didm.co.uk>
Subject Re: Resize images
Date Tue, 16 Sep 2014 12:03:26 GMT
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 <jpuerto@gmail.com <mailto:jpuerto@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 <edavid@ucalgary.ca
<mailto:edavid@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:peter@didm.co.uk <mailto:peter@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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>>>>>>>
>>>>>>>
>>>>>
>>>>
>>>>
>>>>
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>>>
>>
>
>
>
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