Help, errors, and bugs

[Jonathan Hiller]

Explain you problem below

[Mohsen]

Hello,

I need to pressurize voids in a cube. How can I do it with VoxCad 9.61?

And one other request: Can we add forces into parts at certain time or put the forces in an time arrange?

Please, help me.

Best regards,

Mohsen

[Jon]

Hi Mohsen,

Both of these are possible with Voxelyze (the physics engine behind VoxCAD), but you would need to dive into the c++ source code because the UI does not expose this functionality (yet). If you need only approximate results for small displacement I suggest approximating pressurized voids using a material with non-zero CTE and increasing the temperature in simulation to make them expand. However, in many cases this will not be quite the same as truly simulating pressure.

Time varying forces is a good idea. Please put in feature request at the sourceforge page for voxcad (http://sourceforge.net/tracker/?group_id=399799&atid=1657775) to make sure it gets the proper attention.

  ~Jon

[Mohsen]

Hi Jon,

Thank you for your response and your helps.

I Put my request related to "Time varying forces" at the source forge page for VoxCad.

Also, I'm very interested to know much more about the models in the video demo which is in the web site, specially the dog which walking.

May I ask you to add some more details about that simulation?

Thank you,

Best regards,

Mohsen

[Charles Eaton]

On Saturday, January 15, 2011 2:01:10 PM UTC-5, Jonathan Hiller wrote:

Explain you problem below

Hi, Jonathan

What control do I use to rotate the view in the 3D view box? I've tried L mouse, R mouse with and without ctrl, shift, alt. Running VoxCAD on Win 7 64 bit.

Thanks!

Charlie

[Jon]

Hi Charlie,

It's currently mapped to middle mouse button in V. 0.9.8. I realize not everyone has a MMB, so I just added similar RMB functionality in the next major release V. 0.9.81. That's due out next week or this weekend if I get my act together.

[Charles Eaton]

Hi, Jonathan -

Thanks - this is a wonderful bit of work so far. Looking forward to the next release -

Charlie

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[Jon]

Hi Charles,

Just a heads up... I just posted a new version that includes RMB support.

RMB click + drag = rotate view
ctrl + RMB click + drag = pan view
alt + RMB click + drag = zoom
shift + RMB click + drag = perspective amount change

  ~Jon

[Charles Eaton]

Wonderful - thanks! I'm using it right now!

Charlie

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[Jonathan Camargo]

Hi, thank you for your effort in developing this software.

I just downloaded the source code and compiled with gcc for ubuntu amd64 . There were some syntax errors but I finally managed to fixed them -and some warnings also-, I guess msvc passed on them if the code on svn is supposed to compile fine. Here goes the bin in case it helps.

Hope to keep in contact with you

Regards,
Jonathan Camargo





El sábado, 15 de enero de 2011 14:01:10 UTC-5, Jonathan Hiller escribió:

Explain you problem below

[Jon]

Hi Jonathan,

Thanks for the bugfixes and the binary! When did you originally pull your branch? Sourceforge re-jiggered their repo links a few months ago so the correct repo is now svn.code.sf.net/p/voxcad/code/VoxCad.

I ask because a few months ago I got VoxCAD all compiled on gcc/ubuntu and committed to the current repo, so I'm curious if there are more/different bugs compiling on amd64.

  ~Jon

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[Bobby McShane]

This is excellent! I have been working on the same issues myself. Could you also upload your source code? I would really love a copy!

[Bobby McShane]

Also, 

I have noticed that in the Windows version, the simulation continues correctly when the timestep increases beyond 1.5. In the linux version, however, VoxCAD crashes. Do you know why this may occur?

Thanks,

Bobby McShane

[Bobby McShane]

To clarify for Jon, I have also tried to compile from source on Ubuntu and have not had any luck. If you have the source to a newer version of VoxCAD that compiles on Linux, I would love to have it!

Thanks,

Bobby McShane

[Jon]

Sorry guys - forgot to manually svn commit subfolders that are svn externals. Chalk it up to being new to the command line/linux world. Should be fixed now - following these steps exactly worked for me on ubuntu 12.04 / GCC 4.6.3

1) svn co https://svn.code.sf.net/p/voxcad/code/VoxCad
2) qmake -o Makefile VoxCad.pro
3) make.

If you have further problems keep on posting...

  ~J

[Bobby McShane]

Thank you!! What version of QT are you using to compile? I am running into a few issues.

[Jon]

QMake version 2.01a
Using Qt version 4.8.1

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[Bobby McShane]

Still working on getting it to compile for me... One issue that I have found so far is QVX_Interface.cpp should contain #include <unistd.h>
I'll let you know if I end up getting it running.

Thanks,

Bobby McShane

[Bobby McShane]

I got it to compile! In addition to including <unistd.h> in QVX_Interface.cpp, I needed to add -lz to the linker command flags in my Makefile. Thank you for all of your help!

[Jon]

Great! I'll try #including unistd and make sure it doesn't break anything on other systems. The pro/pri files were auto-generated, but I'll see if I can explicitly add the -lz option in there to show up in makefiles.

[Bobby McShane]

Jon,

I am trying to load a .stl file in VoxCAD. I click on the 3d brush and then click mesh, then load. Whenever I try to import stl files I end up with some strange shape or nothing shows up in the editor. Do you know what may be going wrong?

Thanks,

Bobby McShane

[Bobby McShane]

Hmm... Loading works on Windows, but not really on Linux.

[Jon]

Interesting. I confirmed the problem on Ubuntu, and also confirmed that it's working fine on windows. Adding to bug list. My first thought is line endings in the stl file or some other windows/linux idiosyncrasy.

  ~Jon

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[Bobby McShane]

Just downloaded the new version of VoxCad. Compiler issues again. Dlg_Physics.h should include <QScrollbar> not <QScrollbar.h>. I am also facing a number of issues at compile time that I cannot figure out. Do you have a working version?

Thanks,

Bobby McShane

[Jon]

I'll make that header change. I don't recall if I checked the linux compile on the latest so I'll do that, too. (it works on msvc... I just have to manually boot over to linux every time to verify the compile on gcc and that doesn't always happen in sync)

  ~Jon

[Jon]

Fixed the header. The only other issue I found compiling on GCC was a missing std:: qualifier on max() on one line. That's fixed as well and I just compiled successfully. Let me know if you have further problems!

  ~Jon

[Bobby McShane]

Thank you for your quick response! I'll try it out tonight and let you know how it goes!

Once again,
Thanks!

[Matt Shanaman]

The current version of VoxCad (0.9.92) on Windows crashes when loading a .stl file (using Windows 7). The previous version (0.9.91) loads the files just fine. I'm really just using VoxCad to voxelize some objects for me, so my problem is fixed by using the old version, but I figured you might appreciate a bug report. This is a great piece of software you've built here Mr. Hiller.

[Jon]

Thanks Matt. I'll take a look at what changed between 92 and 91 and fix it in the next build.

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