Forum Replies Created

Viewing 15 posts - 1 through 15 (of 22 total)
  • Author
    Posts
  • in reply to: Building the Sandbox – Design Questions #101968

    Ross
    Participant

    Hi TCTitan
    I’m sure I read somwhere in the forum the Xbox kinect 1 is compatable, it’s the xbox kinect 2 that’s not.
    Hope this catches you before you return it.
    Ross

    in reply to: HID interface #101847

    Ross
    Participant

    Hi an4rchy4
    Had a look at something similar myself, from the specification on your link the device is supported by numerous versions of Windows OS.
    What one would hope is this means is that programming the HID device settings and buttons have to be done in a windows environment where the device setup can run, but after the programming is complete the device will operate as a HID device with USB support and be recognised properly in mint.
    Hope this helps.

    in reply to: Segmentation fault – Help #101832

    Ross
    Participant

    Managed to replicate your Segmentation fault at the moment Iḿ not sure how, I was working in three areas with the control.fifo pipe and using an hd projector at various resolutions.

    Terminal

    I used Olivers new Pipe see the minor software revision for details – http://lakeviz.org/forums/topic/minor-software-update/ — the command was executed and the sandbox started as per requirement with the Water Simulation set to zero.

    Hope this helps

    • This reply was modified 2 years, 6 months ago by  Ross.
    • This reply was modified 2 years, 6 months ago by  Ross.
    in reply to: Segmentation fault – Help #101831

    Ross
    Participant

    Iḿ no expert, but reading through the forum indicates that the system will not function correctly if at all on an on board graphics card. I think you need to consider the age of the PC, i.e. the technology it uses is the video driver open GL being run in software emulation mode.
    Which linux are you using? Mint 17.3 is out I recommend it over ubuntu, if you need to use ubuntu I would do a fresh install
    What Processor are you using?
    Whats the relative capability of your on boards graphics compared with a middle of the road solution Geforce 770, 960 and the like?

    I did my initial build on a Dell precision m6400 workstation with a dedicated video card the Quadro FX 2700M 512mb, 8 gig Ram and Intel® Core™2 Duo CPU T9600 @ 2.80GHz, The Sand box runs while the water chokes everything.
    With the water on the CPU, both cores max at 100% and cannot supply the graphics card quick enough it runs at only 14%, when the water is switched off it the CPU runs at a more healthy 58% both cores when redrawing and the graphics processor at 46%.
    At the end of the day the graphics speed is probably limited by the number of cores in the GPU The quatro has 48 The geforce 960 1024 a factor of 50 difference.

    The laptop based quatro allows me to test the system but in my opinion it is not suitable for a system you would want for public use. For personal use the contour repainting is ok a bit sluggish but given it repaints only small sectors of sand at a time and most of the waiting time is due to heavy filtration then itś surprisingly good.
    There are other factors at work with open GL Iḿ sure I read on the forum (but can´t find it now) the sandbox requires an up to date revision to function.

    Hope this non specific ramble helps

    in reply to: Can't get it calibrated correctly #101830

    Ross
    Participant

    Please ignore the request above re the command line, got my wires crossed with another problem with the pipe! thanks r

    in reply to: Feature wish list #101828

    Ross
    Participant

    Hi Oliver

    Just another thought on a second user display for using a 3D view to visualise contours created on sandbox.

    This effectively gives two sessions for users. one on the sandbox proper and one at a second monitor or even projector where a saved 3D view of their work on the sandbox may be reviewed.

    http://shag.btck.co.uk/DualDisplay

    This gives a number of advantages:

    1. Increases the throughput of the sandbox reducing the time required for individuals or groups to explore all the potential.

    2. Provides additional learning opportunities for users using the 3D environment they created or replicated.

    3. Increases the value of the Sandbox investment for very little additional cost (unless you go for a second projector).

    in reply to: Dynamically adjust the contour datum ? #101824

    Ross
    Participant

    Hi Oliver, I have looked at a few ways of demonstrating the changes in contour height. Using water to reduce island outline works but does not make the understanding any easier I have also looked at the mechanical method of increasing the physical elevation by adding more sand and that works but is is not easy to reduce then reduce the elevation afterwards back to the same points and because of the explanation required, it again can be confusing for those new to contours. So if you don’t mind I will add dynamically adjusting the datum to the wish list for the new revision.
    Thanks

    in reply to: Dynamically adjust the contour datum ? #101823

    Ross
    Participant

    Hi Oliver and Maphue Thanks for that I’ve tried out the colour map with an editor and it is quite flexible. Though I am having problems with the pipe’
    I Type this in a terminal: ~ $ echo “colorMap /home/serendipity/src/SARndbox-1.6/ect/SARndbox-1.6/C-HeightColorMap.cpt” > /home/serendipity/src/SARndbox-1.6/share/SARndbox-1.6/Control.fifo
    The terminal stays open no error message but the colormap is not updated – also trying to verify the content of Control.fifo does not open with text editor. (timer spins)

    • This reply was modified 2 years, 6 months ago by  Ross.
    in reply to: Can't get it calibrated correctly #101822

    Ross
    Participant

    Hi Maphue
    I cannot get any of these command line parameters to run

    ~/src/SARndbox-1.6/bin $ SARndbox -h
    SARndbox: command not found

    I can only think the path is the problem, any thoughts?
    Thanks R

    in reply to: Version of Kinect #101821

    Ross
    Participant

    Thanks Oliver Interesting Link.-

    in reply to: USB problems with Kinect #101810

    Ross
    Participant

    Hi NattyAlway

    Following Olivers advice, the Kinect version 1’s (version 2’s not supported at this time) all have the same functionality despite outward appearances. The Kinect 360 also known as model no 1414 is the one I have selected because it is widely available and usually the cheapest price.

    The usb connector does not fit a usb port on a PC or laptop and you require to purchase a Kinect USB power supply in addition This interfaces to a USB plug allowing the required connection to be made.
    The Power supply also provides a the required amount of power for the connect as in many instances a the PC can fail to do so. ** see recommendations above as there are many usb power supplies claiming to be original Microsoft models, this is evidently not the case

    I will use the recommended BenQ 631 as the XGA resolution is sufficient for current and near future developments.

    I currently use a dell precision laptop for testing purposes but will upgrade to the recommended minimum intel i5 + NVIDA 960 or possibly better graphics card if the budget can survive it.
    I believe from other posts contouring will work on a lesser specification while water simulations are more graphics processor intensive. For my own purposes performance is important so I’ll stay at the high end.

    The physical construction requires the specified projector to be mounted at 90 degrees to the sand surface this will probably require the projector to be mounted a little behind the rear edge of the sand box to compensate for the short throw design – I’ll give further details when my projector arrives. The size of the sandbox at 40 X 30 ins is a compromise between many factors in including the contour spacing where making the box larger increases the spacing and obviously the pixel size will also increase. Though I see a large box as desirable I see these factors as limitations and have followed advice sticking with the 40 X 30 dimensions.

    Hope this helps.

    in reply to: Graphics Card Compatibility #101804

    Ross
    Participant

    Hi efpatterson

    Had a similar problem with Mint 17.2 where you could select the recommended driver but it would not save reverting back to the xorg.

    Check this out http://www.binarytides.com/install-nvidia-drivers-ubuntu-14-04/

    I don’t think I updated the ppa I went to step 4 using the driver recommended by Mint in the Control Center, Driver manager. in my case it was 340.

    After doing the sudo apt-get install nvidia-340

    I now have an NVIDA Server Settings option in the Control Centre.

    Hope this helps.

    in reply to: Kinect not detected #101799

    Ross
    Participant

    Worth checking your BIOS to see if you can find an option named “USB 2.0 HS Reference Voltage”. If that option is available, change the associated value from “Low” or “Medium” to “High” or “Maximum”.

    in reply to: Dynamically adjust the contour datum ? #101798

    Ross
    Participant

    Reviewing my question re datum shift

    I guess with such a small incremental change in the depth measurement it will depend on the resolving capability of the Kinect. One of the applications is to show the impact rising water levels in a Loch has on the outline shore of an island.

    http://shag.btck.co.uk/ a gif

    The contour spacing determines the vertical resolution but it must be possible to set the start point, i.e. the first contour at a specific elevation above the sandbox floor. I’m trying to understand what the stepwise increment of that adjustment is.

    Many thanks

    in reply to: Dynamically adjust the contour datum ? #101796

    Ross
    Participant

    Thanks maphew, I’m at 1.6 already so I’ll check out the software update features on your link.

Viewing 15 posts - 1 through 15 (of 22 total)