Travis has already left for the weekend so I'll take over Q&A for what I
know.
1) A video is probably possible but I'll want to okay with boss-man first.
2) Performance is significantly worse when using the Wii nunchuck. We
can render a simple 15 MB point cloud on our dual-core laptops with 256
MB Quardo NVS 160M and manipulate it with a mouse, but our head node
lags very badly despite its quad-core CPU and 2 GB Quadro 5000 if using
the Wii's nunchuck.
Cheers,
David
On 08/31/2012 03:32 PM, paraview-requ...@paraview.org wrote:
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Today's Topics:
1. Re: Manipulating Big Data through Python Shell (Aashish Chaudhary)
2. Re: Manipulating Big Data through Python Shell (Aashish Chaudhary)
----------------------------------------------------------------------
Message: 1
Date: Fri, 31 Aug 2012 16:20:06 -0400
From: Aashish Chaudhary <aashish.chaudh...@kitware.com>
Subject: Re: [Paraview] Manipulating Big Data through Python Shell
To: Berk Geveci <berk.gev...@kitware.com>
Cc: "Bueter, Travis J. \(S&T-Student\)" <tjb...@mail.mst.edu>,
"paraview@paraview.org" <paraview@paraview.org>
Message-ID:
<CAEw35Z8LSaP_gf33K1wLOpNVYJd3=7EmbT0H0dpPfr7vF=+b...@mail.gmail.com>
Content-Type: text/plain; charset="windows-1252"
This is pretty cool!! Would it be possible to create a video of your
interactions? Just to be sure, so are you saying that when you interact
with mouse, the performance is much better than when you use wiimote? If
performance is bad with both devices then it could be what Berk said. If
one is better than another then there is something else is going on.
Thanks,
On Fri, Aug 31, 2012 at 4:08 PM, Berk Geveci <berk.gev...@kitware.com>wrote:
Cool stuff! The performance problem makes me think that ParaView is not
using display lists. Is Immediate Mode Rendering off? (it should be). When
you get to GB size data, there will have to be some LOD involved. No
graphics card can render that many points at interactive rates.
On Fri, Aug 31, 2012 at 3:47 PM, Bueter, Travis J. (S&T-Student) <
tjb...@mail.mst.edu> wrote:
Hello,****
****
I am trying to control renderings with a WiiMote instead of a mouse using
Pat Marion?s ParaViewSocketPlugin to send commands to ParaView?s python
shell (see attached .py file) and running into an issue. When trying to
manipulate 20MB of point cloud data, ParaView severely lags behind after
sending commands and I was able to narrow it down to the ?Render()? call.
My current fix has been to only call ?Render()? every third iteration of
commands I send but this doesn?t necessarily solve the issue as I plan on
moving to GB sized data.****
****
Does anyone have a suggestion as to what I can do to speed up rendering
through the python shell, or another way of manipulating the render data
from an external program?****
****
Some extra information:****
**1. **I am running ParaView 3.14.1 64bit from source on Ubuntu
12.04****
**2. **Quickly rotating 15MB of point-data with the mouse peaks my
CPU at about 53%. With my Wiimote application, this is just a little higher
at 55% (rendering on every command).****
**3. **WiiMotes poll slower than most computer mice at 100Hz. So
I?m pretty sure not sending commands any faster than a mouse would.****
**4. **Python commands are based on the python examples included
with ParaView 3.14.1. They were designed to work as closely as possible to
what C++ Trackball commands do. (This was my first time working with python
or visualization manipulation so any advice on general improvements to the
commands would be greatly appreciated too!)****
**5. **The Wii application works by utilizing the Nunchuk. Button
combinations determine what type of manipulation (Panning, Zoom, Rotate,
and Spin) and then it converts the magnitude and angle of the joystick into
x-y coordinates.****
****
I have tried to include all the information that I thought would be
relevant but if there is anything else that you would like to know, I?d be
more than happy to provide it.****
****
Thanks,****
** **
*Travis J. Bueter*
----------------------------------------------------------------------***
*
*Missouri University of Science and Technology - Junior*
B.S. Computer Engineering/Computer Science****
tjb...@mail.mst.edu****
(573)-238-5843****
** **
IT RSS****
Treasurer ? MS&T Robotics Competition Team****
----------------------------------------------------------------------***
*
** **
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_______________________________________________
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Please keep messages on-topic and check the ParaView Wiki at:
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Follow this link to subscribe/unsubscribe:
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