SOFA -

Forum Replies Created

Viewing 25 posts - 51 through 75 (of 114 total)

← 1 2 3 4 5 →

Author

Posts
19 February 2019 at 04:01 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #13064

Wong
Blocked

Hello @olivier-goury,

Yes, it works.

And then I tried to modify the scrip reduced_test.py. However, the scene would crash or become slow sometimes it was launched. I do not know why.

The issue details are in the video from the attachment:
https://www.dropbox.com/s/x50r699o8jwvubx/liverFine3.rar?dl=0

Can you help me?
Wong

19 February 2019 at 03:52 in reply to: How to constraint objects inside a closed mesh without using collision models? #13063

Wong
Blocked

Hello @hugo,

I know what you mean. But I want a general polyhedron and it would deform at runtime, not just a cube.

Is it feasible?

Wong

16 February 2019 at 04:29 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #13049
Wong
Blocked
Hello @olivier-goury,

I just did what you said but it crashed once it just started playing.
The console output:
```
[WARNING] [MatrixLoader] Problem with matrix file D:\SofaPlugins\ModelOrderReduction\tools\sofa_test_scene\liverFine2\data\
reducedFF_liver_2_weight.txt : wrong row number !!!
```
https://www.dropbox.com/s/wixl52qfjtz4i92/liverFine2.rar?dl=0

Looking forward to your update!

Wong
15 February 2019 at 16:26 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #13046

Wong
Blocked

Hello @olivier-goury,

I tried to do it but it did not work.
https://www.dropbox.com/s/2m6rl239eb6w8rp/reduced_test3.py?dl=0

Wong

15 February 2019 at 03:46 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #13041

Wong
Blocked

Hello @olivier-goury,

I tried to modify the scene:
https://www.dropbox.com/s/eslf3emvc8mmy8o/reduced_test2.py?dl=0

But it seemed that the HyperReducedRestShapeSpringsForceField reducedFF_liver_2 could not fix.

Was it normal?

Wong

13 February 2019 at 03:11 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #13029

Wong
Blocked

Hello @olivier-goury

I have shared the scene file. You can use it to have a test.
https://www.dropbox.com/s/thogel4vp0av3o2/liverFine2.pyscn?dl=0

Wong

12 February 2019 at 08:45 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #13027

Wong
Blocked

Hello @felixvanneste,

I just tried your new updated MOR and it still has some compile issues on my platform.

Well, #include <SofaGeneralSimpleFem/TetrahedralCorotationalFEMForceField.inl> and
#include <SofaMiscFem/TetrahedronHyperelasticityFEMForceField.inl>
should be respectively added in HyperReducedTetrahedralCorotationalFEMForceField.cpp and HyperReducedTetrahedronHyperelasticityFEMForceField.cpp.

It is the solution.

And I want to ask two questions.

1) How can I add FreeMotionAnimationLoop into the liverFine.pyscn?

I tried to add FreeMotionAnimationLoop and GenericConstraintSolver and GenericConstraintCorrection into the scene, and then directly launched the modelOrderReduction.py.

But the generated reduced_test.py did not work properly. So what is the problem?

2) Can the reduced model be used for force feedback interaction, for instance, in a Geomagic scene? If it can, could you give me an example?

Thanks
Wong

6 February 2019 at 11:51 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #13004

Wong
Blocked

Hello @felixvanneste,

Thank you for your reply.

I want to know why these values of the parameters are the best ones. Can you give some hints to me that how I can choose the proper parameters?

And I want to report an issue on Windows: the directory separator on Windows, ‘\’, is different from that on Linux, ‘/’. So it would cause errors if reduceModel.py is directly used.

Wong

2 February 2019 at 07:57 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #12978

Wong
Blocked

Hello @felixvanneste,

I want to generate the data and the python scene of hexaBeam.pyscn.
So how can I specify the parameters at modelOrderReduction.py to generate it?

Thanks,
Wong

30 January 2019 at 13:19 in reply to: [SOLVED] How to use the component SparseLDLSolver? #12961

Wong
Blocked

Hello @damien-marchaluniv-lille1-fr

My compiler is VS2015 and it is the built-in metis version in Sofa.

Wong

30 January 2019 at 05:17 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #12956

Wong
Blocked

Hello @felixvanneste

I have solved the problem.

Thanks.

Wong

30 January 2019 at 05:12 in reply to: [SOLVED] How to use the component SparseLDLSolver? #12955

Wong
Blocked

Hello @damien-marchaluniv-lille1-fr and @hugo

I have solved the problem.
I think it is a bug on Windows.
In Visual Studio, such statement at SparseLDLSolverImpl.h, as is shown below, would be omitted in compilation process.

If I comment out //#include <metis.h> at SparseLDLSolverImpl.h, project SofaSparseSolver can still be built successfully.

So I make a line feed before that statement and then build. The scene can miraculously work! I do not know why.

Wong

29 January 2019 at 15:39 in reply to: [SOLVED] How to use the component SparseLDLSolver? #12934

Wong
Blocked

Hello @damien-marchaluniv-lille1-fr

I use Sofa v18.12 on Win10 64bits. How do you configure your metis in CMake?

Wong

29 January 2019 at 12:23 in reply to: Problem when running SoftRobots python script (SOFA v18.12 on Ubuntu 16.04) #12927

Wong
Blocked

Hello @damien-marchaluniv-lille1-fr

No, I can’t. But I want to ask a question. I do not know why the component SparseLDLSolver does not work on Windows.

Wong

29 January 2019 at 09:22 in reply to: Problem when running SoftRobots python script (SOFA v18.12 on Ubuntu 16.04) #12923

Wong
Blocked

Hello @bmarques

That issue is unrelated to the OS because the component OglSceneFrame has been removed from Sofa since v18.12. To avoid this issue, a simple way is to comment out the line
#node.createObject('OglSceneFrame', style="Arrows", alignment="TopRight")
at mainheader.py in Plugin STLIB. But that is not a fundamental solution.

Moreover, I have another problem that the component SparseLDLSolver always outputs the message “Failed to factorize, D(k,k) is zero”. I do not know why.

Wong

29 January 2019 at 05:12 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #12920

Wong
Blocked

Hello @felixvanneste

I tried to launch the DemoSofia.py but failed because the component OglSceneFrame has been removed from Sofa since v18.12.

So I commented out the line
#node.createObject('OglSceneFrame', style="Arrows", alignment="TopRight")
at mainheader.py in Plugin STLIB and then launched the DemoSofia.py again.

But it still did not run normally because the component SparseLDLSolver always output the message “Failed to factorize, D(k,k) is zero”

26 January 2019 at 04:01 in reply to: Decreasing FPS during contact #12910

Wong
Blocked

Hello @hugo

How to use the penalty methods?

Thanks,
Wong

25 January 2019 at 12:52 in reply to: [SOLVED] How to use the component SparseLDLSolver? #12905

Wong
Blocked

Hello @hugo,

I just tested it in v18.12 and it is the same problem.

Thanks
Wong

24 January 2019 at 15:15 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #12879

Wong
Blocked

Hello @felixvanneste

Now I use version 18.12 to compile the MOR plugin and, however, the similar problems described from my previous post still arise.

But I tried to solve the compile errors by modifying the source code and finally I succeeded, albeit through tremendous efforts.

However, it seems that there is no standalone scn example for the MOR plugin and it should be used with the soft robot plugin. So I even downloaded the soft robot plugin later and then compiled it to see if it would work. But unfortunately, it crashed once I launched the reducedMultiGait-softRobot.pyscn.

So can you give me some guidance about it?

Wong

11 January 2019 at 11:09 in reply to: [SOLVED] How to change the texture of OglModel at runtime? #12764

Wong
Blocked

Hello @hugo,

Thank you for your reply hugo. I once tried to use the similar code but it did not work because I omitted the initVisual() function!

By the way, GDUT is my College that I once attended, but now I have graduated.

However, I am interested about the memberships. So can and how can I join in?

But I still need more help because Sofa is still difficult for me, you know. So can I communicate with other developers if I join in?

Wong

10 January 2019 at 05:35 in reply to: [SOLVED] How to change the texture of OglModel at runtime? #12748

Wong
Blocked

Hello @hugo

Could you tell me how to code it?

Wong

20 December 2018 at 03:32 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #12630

Wong
Blocked

Hello @felixvanneste

The reason why I do not use the version 18.06 is that the Geomagic plugin works abnormally at that version.

When I run the offcial example Geomagic-RigidSkull.scn, the instrument would penetrate into the skull with little force feedback, which, however, can behave normally at 17.12.

Even so, I do not think the ModelOrderReduction plugin can be compiled successfully at 18.06 because there is no significant difference between 18.06 and 17.12. The missing class MechanicalMatrixMapper can still not be found in 18.06.

18 December 2018 at 15:18 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #12619

Wong
Blocked

Hello, @hugo

Well, I have not solved this issue.

I tried this plugin in both Sofa 17.06 and 17.12 on Win10 64bit. The plugin requires some classes missed in the current stable Sofa revision, obviously, both 17.06 and 17.12 included.

So I search the missing classes on GitHub and add them into my Sofa. And also check the option SOFA_WITH_EXPERIMENTAL_FEATURES at CMake.

But when I compile the plugin, errors like error LNK2019: unresolved external symbol still occurs after all. So I think it is likely that the plugin is not updated to fit the current revision of Sofa.

Can you help me?

18 December 2018 at 07:20 in reply to: [SOLVED] How to do feasible and stable physical acceleration in force feedback scene? #12613

Wong
Blocked

Hello @hugo,

I tried to build ModelOrderReduction, but failed.
I got errors like

1>HyperReducedHexahedronFEMForceField.obj : error LNK2019: unresolved external symbol “__declspec(dllimport)

So how to solve this kind of problem?

17 December 2018 at 02:12 in reply to: [SOLVED] How to fix the orientation of the instrument dof？ #12601

Wong
Blocked

Thanks everyone, I have solved the problem
Author

Posts

Viewing 25 posts - 51 through 75 (of 114 total)

← 1 2 3 4 5 →

Wong

Forum Replies Created

Search in Forums