[Paraview] Image Padding : extent problem again

[Tinning, Michael (UK)]

Many thanks for your replies, I see you have this one pretty well covered!
 
Michael
 

________________________________

From: Jérôme [mailto:jerome.velut at gmail.com] 
Sent: 29 June 2011 21:19
To: Dominik Szczerba
Cc: Burlen Loring; paraview at paraview.org; Tinning, Michael (UK)
Subject: Re: [Paraview] Image Padding : extent problem again


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Thanks for the info, Dominik. Issue monitored -- looking forward to testing!

Jerome


2011/6/29 Dominik Szczerba <dominik at itis.ethz.ch>


	I was informed that a feature will be added in the next release to at
	option correctly interpret extents at the price of potential
	additional IO.
	
	http://paraview.org/Bug/view.php?id=12298
	
	Dominik
	

	On Wed, Jun 29, 2011 at 8:53 PM, Jérôme <jerome.velut at gmail.com> wrote:
	> Hi,
	>
	> A related thread can be found here:
	>    http://www.mail-archive.com/paraview@paraview.org/msg02225.html
	> where I also gave some links to previous threads.
	>
	> Briefly, the problem is not that simple to solved: ParaView has rules about
	> how data are organized in order to achieve efficient parallel visualization
	> for a whole pipeline (ParaView gurus, tell if I am wrong!). You will have to
	> play with extent translators, as it had been discussed in a related thread.
	>
	> As it is not a bug, but a normal consequence of the basic purpose of
	> ParaView, I didn't submit a feature request. I also didn't try the "Extent
	> translator" hack used in a provided plugin (sorry I cannot remember which
	> one, but you will find it in the mailing list archives).
	>
	> Best regards,
	> Jerome
	>
	> 2011/6/29 Burlen Loring <bloring at lbl.gov>
	>>
	>> Which filter is exhibiting this issue?
	>>
	>> One potential source for such behavior could be that the filter in
	>> question is not updating the WHOLE_EXTENT key in its RequestInformation
	>> implementation, and/or not updating UPDATE_EXTENT correctly in its
	>> REQUEST_DATA implementation. As a result ParView is using the original
	>> extents. But I'd have to look to verify this hypothesis. If you could help
	>> me set up the condition I would be willing to take  look.
	>>
	>> Burlen
	>>
	>> On 06/29/2011 10:52 AM, Tinning, Michael (UK) wrote:
	>>
	>> I found this thread from about a year ago... I'm keen to find out if there
	>> was any progress on it.
	>>
	>> The problem is that on image-to-image type filters where the extent of the
	>> output is greater than the extent of the input, the output image is cropped.
	>>
	>> For example, if I have an input of extent [0 60 0 360 0 0] and an output
	>> of extent [0 90 0 60 0 0] the output will be cropped to [0 60 0 60 0 0].
	>> The output extent is unchanged; only the visualization in ParaView is
	>> cropped.
	>>
	>> I am using ParaView 3.10.1
	>>
	>> Thanks,
	>>
	>> Michael
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