[Paraview] Mismatched image size returned from ViewPort image render

[Sebastien Jourdain]

Can you change the remote X setting to have a larger resolution?

Seb

On Wed, Jul 1, 2015 at 4:22 PM, Scott Wittenburg <
scott.wittenburg at kitware.com> wrote:

> The "viewport.image.render" rpc call includes the browser viewport size as
> a parameter, and the server-side peer window should resize itself so that
> you get the correct image in your browser.  However, if the remote display
> is configured to have a maximum size of 640 x 480, then I do not believe
> there is any way to request a larger image from the client side.  Perhaps
> someone else knows otherwise though.
>
> Cheers,
> Scott
>
>
>
> On Wed, Jul 1, 2015 at 4:06 PM, Jordan Deyton <deytonjh at ornl.gov> wrote:
>
>>  Scott, et al,
>>
>> It appears nothing has changed in the latest nightly build.
>>
>> However, I have found that the remote X display I'm using is set to a
>> resolution of 640x480. Given that info, it might make sense that ParaView
>> is not rendering anything bigger than 636x420 if it's restricted to the X
>> display's size. Is it possible to get around the size of the remote X
>> display when rendering something offscreen with ParaView?
>>
>> Jordan
>>
>> Jordan Deyton
>> Oak Ridge National Laboratory
>> Telephone: (865) 574-1091
>> Email: deytonjh at ornl.gov
>>
>> On 3/4/2015 12:15 PM, Scott Wittenburg wrote:
>>
>> Hi Jordan,
>>
>>     I wonder if that is the issue that is addressed in this topic:
>>
>>  http://review.source.kitware.com/#/t/5425/
>>
>>     If so, I think this fix may be merged soon, as it has already been
>> approved.  If you built the ParaView release you're running yourself, you
>> could always try to check out the topic and see if it fixes the issue
>> you're seeing.
>>
>>  Cheers,
>> Scott
>>
>>
>>
>>
>> On Tue, Mar 3, 2015 at 1:32 PM, Jordan Deyton <deytonjh at ornl.gov> wrote:
>>
>>> ParaView gurus,
>>>
>>> I am working on a project that uses the JSON RPC protocols provided by
>>> ParaViewWeb. I've noticed that the image quality for ViewPorts seems bad
>>> regardless of what is specified in the call to viewport.image.render (docs
>>> here:
>>> http://www.paraview.org/ParaView3/Doc/Nightly/www/js-doc/index.html#!/api/protocols.ParaViewWebViewPortImageDelivery
>>> ).
>>>
>>> After decoding the returned image from the Base64 encoding, the JPEG
>>> image comes out as 636x420, while the quality is listed as 100 and the
>>> original size is 1440x850.
>>>
>>> The JSON object passed to viewport.image.render looks like
>>>
>>> {"args":[{
>>>     "localtime":1425413914878,
>>>     "view":-1,
>>>     "size":[1440,850],
>>>     "quality":100}]
>>> }
>>>
>>> While the returned object from that RPC call looks like
>>>
>>> {
>>>     "image": "very long encoded image text here",
>>>     "localTime": 0,
>>>     "stale": false,
>>>     "size": [1440,850],
>>>     "format": "jpeg;base64",
>>>     "global_id": "315",
>>>     "mtime": 3068929,
>>>     "workTime": 1
>>> }
>>>
>>> I've used two separate Base64 decoders, and both result in a JPEG image
>>> that is 636x420, not the reported 1440x850.
>>>
>>> Any idea what could be the problem here? Is this a bug in ParaViewWeb?
>>> I'm running the latest stable ParaView release (4.3.1) on RHEL.
>>>
>>> Thanks,
>>> Jordan
>>>
>>> --
>>> Jordan Deyton
>>> Oak Ridge National Laboratory
>>> Telephone: (865) 574-1091
>>> Email: deytonjh at ornl.gov
>>>
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>>
>>
>>
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>>
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>
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>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Search the list archives at: http://markmail.org/search/?q=ParaView
>
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