Some questions.

Hi,

I have some questions. They are listed below.

  1. When I run the inverse dynamics for my model. I got the error that
    says “Muscle recruitment analysis failed, simplex solver reports that
    solution does not satisfy all constraints” at step 77. I searched this
    forum and chanced upon the suggested solution to add a negligible
    gravity in the other 2 directions in the AnyBodyStudy such as
    Gravity={0.001,-9.81,0.001}. My model then runs smoothly with no
    errors. Does this mean that the problem is settled?

  2. I’m trying to do an AnyParamStudy like the one in the tutorial. I
    have 1 parameter to vary and I’d like to see how it affects the joint
    forces in the knee - which has Fx,Fy and Fz. How to I get the
    AnyDesMeasure to extract the vector sum of these forces?

  3. How do I find the center of mass of a body? Is it to use the
    AnyKinCoM function?

Thanks in advance.

Best Regards,
Robin

Hi Robin

  1. I believe that you did the right thing.
  2. Well You should as you do, follow the tutorial describing the
    parameter study. If you want to extract the joint forces, I believe
    you can insert a AnyForceMeasure and then use that as your
    AnyDesMeasure. I will look a bit more into this and get back later again.
  3. Yes if you want to measure the COM, then the AnyKinCOM measures the
    COM of the segments you want.

Best regards
Christian, AnyBody Support

— In anyscript@yahoogroups.com, “Robin” <giggsyagami07@…> wrote:
>
> Hi,
>
> I have some questions. They are listed below.
>
> 1. When I run the inverse dynamics for my model. I got the error that
> says “Muscle recruitment analysis failed, simplex solver reports that
> solution does not satisfy all constraints” at step 77. I searched this
> forum and chanced upon the suggested solution to add a negligible
> gravity in the other 2 directions in the AnyBodyStudy such as
> Gravity={0.001,-9.81,0.001}. My model then runs smoothly with no
> errors. Does this mean that the problem is settled?
>
> 2. I’m trying to do an AnyParamStudy like the one in the tutorial. I
> have 1 parameter to vary and I’d like to see how it affects the joint
> forces in the knee - which has Fx,Fy and Fz. How to I get the
> AnyDesMeasure to extract the vector sum of these forces?
>
> 3. How do I find the center of mass of a body? Is it to use the
> AnyKinCoM function?
>
> Thanks in advance.
>
> Best Regards,
> Robin
>

Hi Christian,

Thanks for the answers. I have another question.
I tried to scale my model using
#include “…\BRep\Aalborg\Scaling\ScalingUniform.any”
The kinematics seems ok without muscles on the model, and I could set
its initial positions. However, when I changed the model to one with
muscles, using
#include “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
The model wouldn’t set its initial postions and gave a total kinematic
error of (final kin. error = 5.643448E+000).

Why is this so?

Best Regards,
Robin

— In anyscript@yahoogroups.com, “AnyBody Support” <support@…> wrote:
>
> Hi Robin
>
> 1. I believe that you did the right thing.
> 2. Well You should as you do, follow the tutorial describing the
> parameter study. If you want to extract the joint forces, I believe
> you can insert a AnyForceMeasure and then use that as your
> AnyDesMeasure. I will look a bit more into this and get back later
again.
> 3. Yes if you want to measure the COM, then the AnyKinCOM measures the
> COM of the segments you want.
>
> Best regards
> Christian, AnyBody Support
>
> — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> >
> > Hi,
> >
> > I have some questions. They are listed below.
> >
> > 1. When I run the inverse dynamics for my model. I got the error that
> > says “Muscle recruitment analysis failed, simplex solver reports that
> > solution does not satisfy all constraints” at step 77. I searched this
> > forum and chanced upon the suggested solution to add a negligible
> > gravity in the other 2 directions in the AnyBodyStudy such as
> > Gravity={0.001,-9.81,0.001}. My model then runs smoothly with no
> > errors. Does this mean that the problem is settled?
> >
> > 2. I’m trying to do an AnyParamStudy like the one in the tutorial. I
> > have 1 parameter to vary and I’d like to see how it affects the joint
> > forces in the knee - which has Fx,Fy and Fz. How to I get the
> > AnyDesMeasure to extract the vector sum of these forces?
> >
> > 3. How do I find the center of mass of a body? Is it to use the
> > AnyKinCoM function?
> >
> > Thanks in advance.
> >
> > Best Regards,
> > Robin
> >
>

Hi Robin

I will look a bit more into that model… It sounds like you should
scale your initial positions as well, but I havent got a chance to
look at it yet… I will get back to you.

Best regards
Christian, AnyBody Support

— In anyscript@yahoogroups.com, “Robin” <giggsyagami07@…> wrote:
>
> Hi Christian,
>
> Thanks for the answers. I have another question.
> I tried to scale my model using
> #include “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> The kinematics seems ok without muscles on the model, and I could set
> its initial positions. However, when I changed the model to one with
> muscles, using
> #include
“…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> The model wouldn’t set its initial postions and gave a total kinematic
> error of (final kin. error = 5.643448E+000).
>
> Why is this so?
>
> Best Regards,
> Robin
>
>
>
> — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> >
> > Hi Robin
> >
> > 1. I believe that you did the right thing.
> > 2. Well You should as you do, follow the tutorial describing the
> > parameter study. If you want to extract the joint forces, I believe
> > you can insert a AnyForceMeasure and then use that as your
> > AnyDesMeasure. I will look a bit more into this and get back later
> again.
> > 3. Yes if you want to measure the COM, then the AnyKinCOM measures the
> > COM of the segments you want.
> >
> > Best regards
> > Christian, AnyBody Support
> >
> > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > >
> > > Hi,
> > >
> > > I have some questions. They are listed below.
> > >
> > > 1. When I run the inverse dynamics for my model. I got the error
that
> > > says “Muscle recruitment analysis failed, simplex solver reports
that
> > > solution does not satisfy all constraints” at step 77. I
searched this
> > > forum and chanced upon the suggested solution to add a negligible
> > > gravity in the other 2 directions in the AnyBodyStudy such as
> > > Gravity={0.001,-9.81,0.001}. My model then runs smoothly with no
> > > errors. Does this mean that the problem is settled?
> > >
> > > 2. I’m trying to do an AnyParamStudy like the one in the tutorial. I
> > > have 1 parameter to vary and I’d like to see how it affects the
joint
> > > forces in the knee - which has Fx,Fy and Fz. How to I get the
> > > AnyDesMeasure to extract the vector sum of these forces?
> > >
> > > 3. How do I find the center of mass of a body? Is it to use the
> > > AnyKinCoM function?
> > >
> > > Thanks in advance.
> > >
> > > Best Regards,
> > > Robin
> > >
> >
>

Hi Christian,

Sure, and thanks a lot again.

Regards,
Robin

— In anyscript@yahoogroups.com, “AnyBody Support” <support@…> wrote:
>
> Hi Robin
>
> I will look a bit more into that model… It sounds like you should
> scale your initial positions as well, but I havent got a chance to
> look at it yet… I will get back to you.
>
> Best regards
> Christian, AnyBody Support
>
> — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> >
> > Hi Christian,
> >
> > Thanks for the answers. I have another question.
> > I tried to scale my model using
> > #include “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > The kinematics seems ok without muscles on the model, and I could set
> > its initial positions. However, when I changed the model to one with
> > muscles, using
> > #include
> “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > The model wouldn’t set its initial postions and gave a total kinematic
> > error of (final kin. error = 5.643448E+000).
> >
> > Why is this so?
> >
> > Best Regards,
> > Robin
> >
> >
> >
> > — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> > >
> > > Hi Robin
> > >
> > > 1. I believe that you did the right thing.
> > > 2. Well You should as you do, follow the tutorial describing the
> > > parameter study. If you want to extract the joint forces, I believe
> > > you can insert a AnyForceMeasure and then use that as your
> > > AnyDesMeasure. I will look a bit more into this and get back later
> > again.
> > > 3. Yes if you want to measure the COM, then the AnyKinCOM
measures the
> > > COM of the segments you want.
> > >
> > > Best regards
> > > Christian, AnyBody Support
> > >
> > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > > >
> > > > Hi,
> > > >
> > > > I have some questions. They are listed below.
> > > >
> > > > 1. When I run the inverse dynamics for my model. I got the error
> that
> > > > says “Muscle recruitment analysis failed, simplex solver reports
> that
> > > > solution does not satisfy all constraints” at step 77. I
> searched this
> > > > forum and chanced upon the suggested solution to add a negligible
> > > > gravity in the other 2 directions in the AnyBodyStudy such as
> > > > Gravity={0.001,-9.81,0.001}. My model then runs smoothly with no
> > > > errors. Does this mean that the problem is settled?
> > > >
> > > > 2. I’m trying to do an AnyParamStudy like the one in the
tutorial. I
> > > > have 1 parameter to vary and I’d like to see how it affects the
> joint
> > > > forces in the knee - which has Fx,Fy and Fz. How to I get the
> > > > AnyDesMeasure to extract the vector sum of these forces?
> > > >
> > > > 3. How do I find the center of mass of a body? Is it to use the
> > > > AnyKinCoM function?
> > > >
> > > > Thanks in advance.
> > > >
> > > > Best Regards,
> > > > Robin
> > > >
> > >
> >
>

Hi Robin

Ok I was looking a bit into it, but now I would like to see the
model… please?

Best regards
Christian, AnyBody Support

— In anyscript@yahoogroups.com, “Robin” <giggsyagami07@…> wrote:
>
> Hi Christian,
>
> Sure, and thanks a lot again.
>
> Regards,
> Robin
>
> — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> >
> > Hi Robin
> >
> > I will look a bit more into that model… It sounds like you should
> > scale your initial positions as well, but I havent got a chance to
> > look at it yet… I will get back to you.
> >
> > Best regards
> > Christian, AnyBody Support
> >
> > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > >
> > > Hi Christian,
> > >
> > > Thanks for the answers. I have another question.
> > > I tried to scale my model using
> > > #include “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > > The kinematics seems ok without muscles on the model, and I
could set
> > > its initial positions. However, when I changed the model to one with
> > > muscles, using
> > > #include
> > “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > > The model wouldn’t set its initial postions and gave a total
kinematic
> > > error of (final kin. error = 5.643448E+000).
> > >
> > > Why is this so?
> > >
> > > Best Regards,
> > > Robin
> > >
> > >
> > >
> > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
wrote:
> > > >
> > > > Hi Robin
> > > >
> > > > 1. I believe that you did the right thing.
> > > > 2. Well You should as you do, follow the tutorial describing the
> > > > parameter study. If you want to extract the joint forces, I
believe
> > > > you can insert a AnyForceMeasure and then use that as your
> > > > AnyDesMeasure. I will look a bit more into this and get back later
> > > again.
> > > > 3. Yes if you want to measure the COM, then the AnyKinCOM
> measures the
> > > > COM of the segments you want.
> > > >
> > > > Best regards
> > > > Christian, AnyBody Support
> > > >
> > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > > > >
> > > > > Hi,
> > > > >
> > > > > I have some questions. They are listed below.
> > > > >
> > > > > 1. When I run the inverse dynamics for my model. I got the error
> > that
> > > > > says “Muscle recruitment analysis failed, simplex solver reports
> > that
> > > > > solution does not satisfy all constraints” at step 77. I
> > searched this
> > > > > forum and chanced upon the suggested solution to add a
negligible
> > > > > gravity in the other 2 directions in the AnyBodyStudy such as
> > > > > Gravity={0.001,-9.81,0.001}. My model then runs smoothly with no
> > > > > errors. Does this mean that the problem is settled?
> > > > >
> > > > > 2. I’m trying to do an AnyParamStudy like the one in the
> tutorial. I
> > > > > have 1 parameter to vary and I’d like to see how it affects the
> > joint
> > > > > forces in the knee - which has Fx,Fy and Fz. How to I get the
> > > > > AnyDesMeasure to extract the vector sum of these forces?
> > > > >
> > > > > 3. How do I find the center of mass of a body? Is it to use the
> > > > > AnyKinCoM function?
> > > > >
> > > > > Thanks in advance.
> > > > >
> > > > > Best Regards,
> > > > > Robin
> > > > >
> > > >
> > >
> >
>

Hi Christian,

I have it zipped and posted up in the files section under the folder
called “Robin’s Work”.
Thanks. =)

Best Regards,
Robin

— In anyscript@yahoogroups.com, “AnyBody Support” <support@…> wrote:
>
> Hi Robin
>
> Ok I was looking a bit into it, but now I would like to see the
> model… please?
>
> Best regards
> Christian, AnyBody Support
>
> — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> >
> > Hi Christian,
> >
> > Sure, and thanks a lot again.
> >
> > Regards,
> > Robin
> >
> > — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> > >
> > > Hi Robin
> > >
> > > I will look a bit more into that model… It sounds like you should
> > > scale your initial positions as well, but I havent got a chance to
> > > look at it yet… I will get back to you.
> > >
> > > Best regards
> > > Christian, AnyBody Support
> > >
> > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > > >
> > > > Hi Christian,
> > > >
> > > > Thanks for the answers. I have another question.
> > > > I tried to scale my model using
> > > > #include “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > > > The kinematics seems ok without muscles on the model, and I
> could set
> > > > its initial positions. However, when I changed the model to
one with
> > > > muscles, using
> > > > #include
> > > “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > > > The model wouldn’t set its initial postions and gave a total
> kinematic
> > > > error of (final kin. error = 5.643448E+000).
> > > >
> > > > Why is this so?
> > > >
> > > > Best Regards,
> > > > Robin
> > > >
> > > >
> > > >
> > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> wrote:
> > > > >
> > > > > Hi Robin
> > > > >
> > > > > 1. I believe that you did the right thing.
> > > > > 2. Well You should as you do, follow the tutorial describing the
> > > > > parameter study. If you want to extract the joint forces, I
> believe
> > > > > you can insert a AnyForceMeasure and then use that as your
> > > > > AnyDesMeasure. I will look a bit more into this and get back
later
> > > > again.
> > > > > 3. Yes if you want to measure the COM, then the AnyKinCOM
> > measures the
> > > > > COM of the segments you want.
> > > > >
> > > > > Best regards
> > > > > Christian, AnyBody Support
> > > > >
> > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
wrote:
> > > > > >
> > > > > > Hi,
> > > > > >
> > > > > > I have some questions. They are listed below.
> > > > > >
> > > > > > 1. When I run the inverse dynamics for my model. I got the
error
> > > that
> > > > > > says “Muscle recruitment analysis failed, simplex solver
reports
> > > that
> > > > > > solution does not satisfy all constraints” at step 77. I
> > > searched this
> > > > > > forum and chanced upon the suggested solution to add a
> negligible
> > > > > > gravity in the other 2 directions in the AnyBodyStudy such as
> > > > > > Gravity={0.001,-9.81,0.001}. My model then runs smoothly
with no
> > > > > > errors. Does this mean that the problem is settled?
> > > > > >
> > > > > > 2. I’m trying to do an AnyParamStudy like the one in the
> > tutorial. I
> > > > > > have 1 parameter to vary and I’d like to see how it
affects the
> > > joint
> > > > > > forces in the knee - which has Fx,Fy and Fz. How to I get the
> > > > > > AnyDesMeasure to extract the vector sum of these forces?
> > > > > >
> > > > > > 3. How do I find the center of mass of a body? Is it to
use the
> > > > > > AnyKinCoM function?
> > > > > >
> > > > > > Thanks in advance.
> > > > > >
> > > > > > Best Regards,
> > > > > > Robin
> > > > > >
> > > > >
> > > >
> > >
> >
>

Hi Robin

I took a look at your model. By removing the lines that makes the
errors in the InitialPosition.any (I uploaded the edited file to your
directory)
This will make the model run. I get a recruitment error at the 79th
time step. I haven’t found the actual problem, but it seems like it
comes from the hip. Try look at the hip at the 79th time step.

By the way you use the uniform scaling. I just want to remind you that
the recommended way of scaling is the LengthMassFat.

Let me hear how it goes.

Best regards
Christian, AnyBody Support

— In anyscript@yahoogroups.com, “Robin” <giggsyagami07@…> wrote:
>
> Hi Christian,
>
> I have it zipped and posted up in the files section under the folder
> called “Robin’s Work”.
> Thanks. =)
>
> Best Regards,
> Robin
>
> — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> >
> > Hi Robin
> >
> > Ok I was looking a bit into it, but now I would like to see the
> > model… please?
> >
> > Best regards
> > Christian, AnyBody Support
> >
> > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > >
> > > Hi Christian,
> > >
> > > Sure, and thanks a lot again.
> > >
> > > Regards,
> > > Robin
> > >
> > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
wrote:
> > > >
> > > > Hi Robin
> > > >
> > > > I will look a bit more into that model… It sounds like you
should
> > > > scale your initial positions as well, but I havent got a chance to
> > > > look at it yet… I will get back to you.
> > > >
> > > > Best regards
> > > > Christian, AnyBody Support
> > > >
> > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > > > >
> > > > > Hi Christian,
> > > > >
> > > > > Thanks for the answers. I have another question.
> > > > > I tried to scale my model using
> > > > > #include “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > > > > The kinematics seems ok without muscles on the model, and I
> > could set
> > > > > its initial positions. However, when I changed the model to
> one with
> > > > > muscles, using
> > > > > #include
> > > > “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > > > > The model wouldn’t set its initial postions and gave a total
> > kinematic
> > > > > error of (final kin. error = 5.643448E+000).
> > > > >
> > > > > Why is this so?
> > > > >
> > > > > Best Regards,
> > > > > Robin
> > > > >
> > > > >
> > > > >
> > > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> > wrote:
> > > > > >
> > > > > > Hi Robin
> > > > > >
> > > > > > 1. I believe that you did the right thing.
> > > > > > 2. Well You should as you do, follow the tutorial
describing the
> > > > > > parameter study. If you want to extract the joint forces, I
> > believe
> > > > > > you can insert a AnyForceMeasure and then use that as your
> > > > > > AnyDesMeasure. I will look a bit more into this and get back
> later
> > > > > again.
> > > > > > 3. Yes if you want to measure the COM, then the AnyKinCOM
> > > measures the
> > > > > > COM of the segments you want.
> > > > > >
> > > > > > Best regards
> > > > > > Christian, AnyBody Support
> > > > > >
> > > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
> wrote:
> > > > > > >
> > > > > > > Hi,
> > > > > > >
> > > > > > > I have some questions. They are listed below.
> > > > > > >
> > > > > > > 1. When I run the inverse dynamics for my model. I got the
> error
> > > > that
> > > > > > > says “Muscle recruitment analysis failed, simplex solver
> reports
> > > > that
> > > > > > > solution does not satisfy all constraints” at step 77. I
> > > > searched this
> > > > > > > forum and chanced upon the suggested solution to add a
> > negligible
> > > > > > > gravity in the other 2 directions in the AnyBodyStudy
such as
> > > > > > > Gravity={0.001,-9.81,0.001}. My model then runs smoothly
> with no
> > > > > > > errors. Does this mean that the problem is settled?
> > > > > > >
> > > > > > > 2. I’m trying to do an AnyParamStudy like the one in the
> > > tutorial. I
> > > > > > > have 1 parameter to vary and I’d like to see how it
> affects the
> > > > joint
> > > > > > > forces in the knee - which has Fx,Fy and Fz. How to I
get the
> > > > > > > AnyDesMeasure to extract the vector sum of these forces?
> > > > > > >
> > > > > > > 3. How do I find the center of mass of a body? Is it to
> use the
> > > > > > > AnyKinCoM function?
> > > > > > >
> > > > > > > Thanks in advance.
> > > > > > >
> > > > > > > Best Regards,
> > > > > > > Robin
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>

Hi Christian,

Thanks a lot. I will take a look at it. Another problem I face is the
interaction between the human body and the seat. If you noticed, I
used spherical joints - somehow I don’t think it is right. Any
suggestions?

Best Regards,
Robin

— In anyscript@yahoogroups.com, “AnyBody Support” <support@…> wrote:
>
> Hi Robin
>
> I took a look at your model. By removing the lines that makes the
> errors in the InitialPosition.any (I uploaded the edited file to your
> directory)
> This will make the model run. I get a recruitment error at the 79th
> time step. I haven’t found the actual problem, but it seems like it
> comes from the hip. Try look at the hip at the 79th time step.
>
> By the way you use the uniform scaling. I just want to remind you that
> the recommended way of scaling is the LengthMassFat.
>
> Let me hear how it goes.
>
> Best regards
> Christian, AnyBody Support
>
>
>
> — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> >
> > Hi Christian,
> >
> > I have it zipped and posted up in the files section under the folder
> > called “Robin’s Work”.
> > Thanks. =)
> >
> > Best Regards,
> > Robin
> >
> > — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> > >
> > > Hi Robin
> > >
> > > Ok I was looking a bit into it, but now I would like to see the
> > > model… please?
> > >
> > > Best regards
> > > Christian, AnyBody Support
> > >
> > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > > >
> > > > Hi Christian,
> > > >
> > > > Sure, and thanks a lot again.
> > > >
> > > > Regards,
> > > > Robin
> > > >
> > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> wrote:
> > > > >
> > > > > Hi Robin
> > > > >
> > > > > I will look a bit more into that model… It sounds like you
> should
> > > > > scale your initial positions as well, but I havent got a
chance to
> > > > > look at it yet… I will get back to you.
> > > > >
> > > > > Best regards
> > > > > Christian, AnyBody Support
> > > > >
> > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
wrote:
> > > > > >
> > > > > > Hi Christian,
> > > > > >
> > > > > > Thanks for the answers. I have another question.
> > > > > > I tried to scale my model using
> > > > > > #include “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > > > > > The kinematics seems ok without muscles on the model, and I
> > > could set
> > > > > > its initial positions. However, when I changed the model to
> > one with
> > > > > > muscles, using
> > > > > > #include
> > > > > “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > > > > > The model wouldn’t set its initial postions and gave a total
> > > kinematic
> > > > > > error of (final kin. error = 5.643448E+000).
> > > > > >
> > > > > > Why is this so?
> > > > > >
> > > > > > Best Regards,
> > > > > > Robin
> > > > > >
> > > > > >
> > > > > >
> > > > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> > > wrote:
> > > > > > >
> > > > > > > Hi Robin
> > > > > > >
> > > > > > > 1. I believe that you did the right thing.
> > > > > > > 2. Well You should as you do, follow the tutorial
> describing the
> > > > > > > parameter study. If you want to extract the joint forces, I
> > > believe
> > > > > > > you can insert a AnyForceMeasure and then use that as your
> > > > > > > AnyDesMeasure. I will look a bit more into this and get back
> > later
> > > > > > again.
> > > > > > > 3. Yes if you want to measure the COM, then the AnyKinCOM
> > > > measures the
> > > > > > > COM of the segments you want.
> > > > > > >
> > > > > > > Best regards
> > > > > > > Christian, AnyBody Support
> > > > > > >
> > > > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
> > wrote:
> > > > > > > >
> > > > > > > > Hi,
> > > > > > > >
> > > > > > > > I have some questions. They are listed below.
> > > > > > > >
> > > > > > > > 1. When I run the inverse dynamics for my model. I got the
> > error
> > > > > that
> > > > > > > > says “Muscle recruitment analysis failed, simplex solver
> > reports
> > > > > that
> > > > > > > > solution does not satisfy all constraints” at step 77. I
> > > > > searched this
> > > > > > > > forum and chanced upon the suggested solution to add a
> > > negligible
> > > > > > > > gravity in the other 2 directions in the AnyBodyStudy
> such as
> > > > > > > > Gravity={0.001,-9.81,0.001}. My model then runs smoothly
> > with no
> > > > > > > > errors. Does this mean that the problem is settled?
> > > > > > > >
> > > > > > > > 2. I’m trying to do an AnyParamStudy like the one in the
> > > > tutorial. I
> > > > > > > > have 1 parameter to vary and I’d like to see how it
> > affects the
> > > > > joint
> > > > > > > > forces in the knee - which has Fx,Fy and Fz. How to I
> get the
> > > > > > > > AnyDesMeasure to extract the vector sum of these forces?
> > > > > > > >
> > > > > > > > 3. How do I find the center of mass of a body? Is it to
> > use the
> > > > > > > > AnyKinCoM function?
> > > > > > > >
> > > > > > > > Thanks in advance.
> > > > > > > >
> > > > > > > > Best Regards,
> > > > > > > > Robin
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>

Hi Robin

From my point of view it seems ok… I guess you could also do it with
a couple of markers.

Best regards
Christian, AnyBody Support

— In anyscript@yahoogroups.com, “Robin” <giggsyagami07@…> wrote:
>
> Hi Christian,
>
> Thanks a lot. I will take a look at it. Another problem I face is the
> interaction between the human body and the seat. If you noticed, I
> used spherical joints - somehow I don’t think it is right. Any
> suggestions?
>
> Best Regards,
> Robin
>
>
> — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> >
> > Hi Robin
> >
> > I took a look at your model. By removing the lines that makes the
> > errors in the InitialPosition.any (I uploaded the edited file to your
> > directory)
> > This will make the model run. I get a recruitment error at the 79th
> > time step. I haven’t found the actual problem, but it seems like it
> > comes from the hip. Try look at the hip at the 79th time step.
> >
> > By the way you use the uniform scaling. I just want to remind you that
> > the recommended way of scaling is the LengthMassFat.
> >
> > Let me hear how it goes.
> >
> > Best regards
> > Christian, AnyBody Support
> >
> >
> >
> > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > >
> > > Hi Christian,
> > >
> > > I have it zipped and posted up in the files section under the folder
> > > called “Robin’s Work”.
> > > Thanks. =)
> > >
> > > Best Regards,
> > > Robin
> > >
> > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
wrote:
> > > >
> > > > Hi Robin
> > > >
> > > > Ok I was looking a bit into it, but now I would like to see the
> > > > model… please?
> > > >
> > > > Best regards
> > > > Christian, AnyBody Support
> > > >
> > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > > > >
> > > > > Hi Christian,
> > > > >
> > > > > Sure, and thanks a lot again.
> > > > >
> > > > > Regards,
> > > > > Robin
> > > > >
> > > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> > wrote:
> > > > > >
> > > > > > Hi Robin
> > > > > >
> > > > > > I will look a bit more into that model… It sounds like you
> > should
> > > > > > scale your initial positions as well, but I havent got a
> chance to
> > > > > > look at it yet… I will get back to you.
> > > > > >
> > > > > > Best regards
> > > > > > Christian, AnyBody Support
> > > > > >
> > > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
> wrote:
> > > > > > >
> > > > > > > Hi Christian,
> > > > > > >
> > > > > > > Thanks for the answers. I have another question.
> > > > > > > I tried to scale my model using
> > > > > > > #include “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > > > > > > The kinematics seems ok without muscles on the model, and I
> > > > could set
> > > > > > > its initial positions. However, when I changed the model to
> > > one with
> > > > > > > muscles, using
> > > > > > > #include
> > > > > >
“…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > > > > > > The model wouldn’t set its initial postions and gave a total
> > > > kinematic
> > > > > > > error of (final kin. error = 5.643448E+000).
> > > > > > >
> > > > > > > Why is this so?
> > > > > > >
> > > > > > > Best Regards,
> > > > > > > Robin
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > — In anyscript@yahoogroups.com, “AnyBody Support”
<support@>
> > > > wrote:
> > > > > > > >
> > > > > > > > Hi Robin
> > > > > > > >
> > > > > > > > 1. I believe that you did the right thing.
> > > > > > > > 2. Well You should as you do, follow the tutorial
> > describing the
> > > > > > > > parameter study. If you want to extract the joint
forces, I
> > > > believe
> > > > > > > > you can insert a AnyForceMeasure and then use that as your
> > > > > > > > AnyDesMeasure. I will look a bit more into this and
get back
> > > later
> > > > > > > again.
> > > > > > > > 3. Yes if you want to measure the COM, then the AnyKinCOM
> > > > > measures the
> > > > > > > > COM of the segments you want.
> > > > > > > >
> > > > > > > > Best regards
> > > > > > > > Christian, AnyBody Support
> > > > > > > >
> > > > > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
> > > wrote:
> > > > > > > > >
> > > > > > > > > Hi,
> > > > > > > > >
> > > > > > > > > I have some questions. They are listed below.
> > > > > > > > >
> > > > > > > > > 1. When I run the inverse dynamics for my model. I
got the
> > > error
> > > > > > that
> > > > > > > > > says “Muscle recruitment analysis failed, simplex solver
> > > reports
> > > > > > that
> > > > > > > > > solution does not satisfy all constraints” at step 77. I
> > > > > > searched this
> > > > > > > > > forum and chanced upon the suggested solution to add a
> > > > negligible
> > > > > > > > > gravity in the other 2 directions in the AnyBodyStudy
> > such as
> > > > > > > > > Gravity={0.001,-9.81,0.001}. My model then runs smoothly
> > > with no
> > > > > > > > > errors. Does this mean that the problem is settled?
> > > > > > > > >
> > > > > > > > > 2. I’m trying to do an AnyParamStudy like the one in the
> > > > > tutorial. I
> > > > > > > > > have 1 parameter to vary and I’d like to see how it
> > > affects the
> > > > > > joint
> > > > > > > > > forces in the knee - which has Fx,Fy and Fz. How to I
> > get the
> > > > > > > > > AnyDesMeasure to extract the vector sum of these forces?
> > > > > > > > >
> > > > > > > > > 3. How do I find the center of mass of a body? Is it to
> > > use the
> > > > > > > > > AnyKinCoM function?
> > > > > > > > >
> > > > > > > > > Thanks in advance.
> > > > > > > > >
> > > > > > > > > Best Regards,
> > > > > > > > > Robin
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>

Hi Christian,

I’ve ammended the initial positions that you have suggested but it’s
still the same scaling problem. After scaling, the model runs
kinematically as expected.

But after adding muscles, the model seems to have some error. The
muscles look like they stick to the origin of the axes and the model
looks slanted.

I’ve posted the model up in Robin’s Work folder. Hope you’d have some
ideas/suggestions. Thanks.

Regards,
Robin

— In anyscript@yahoogroups.com, “AnyBody Support” <support@…> wrote:
>
> Hi Robin
>
> From my point of view it seems ok… I guess you could also do it with
> a couple of markers.
>
> Best regards
> Christian, AnyBody Support
>
> — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> >
> > Hi Christian,
> >
> > Thanks a lot. I will take a look at it. Another problem I face is the
> > interaction between the human body and the seat. If you noticed, I
> > used spherical joints - somehow I don’t think it is right. Any
> > suggestions?
> >
> > Best Regards,
> > Robin
> >
> >
> > — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> > >
> > > Hi Robin
> > >
> > > I took a look at your model. By removing the lines that makes the
> > > errors in the InitialPosition.any (I uploaded the edited file to
your
> > > directory)
> > > This will make the model run. I get a recruitment error at the 79th
> > > time step. I haven’t found the actual problem, but it seems like it
> > > comes from the hip. Try look at the hip at the 79th time step.
> > >
> > > By the way you use the uniform scaling. I just want to remind
you that
> > > the recommended way of scaling is the LengthMassFat.
> > >
> > > Let me hear how it goes.
> > >
> > > Best regards
> > > Christian, AnyBody Support
> > >
> > >
> > >
> > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > > >
> > > > Hi Christian,
> > > >
> > > > I have it zipped and posted up in the files section under the
folder
> > > > called “Robin’s Work”.
> > > > Thanks. =)
> > > >
> > > > Best Regards,
> > > > Robin
> > > >
> > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> wrote:
> > > > >
> > > > > Hi Robin
> > > > >
> > > > > Ok I was looking a bit into it, but now I would like to see the
> > > > > model… please?
> > > > >
> > > > > Best regards
> > > > > Christian, AnyBody Support
> > > > >
> > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
wrote:
> > > > > >
> > > > > > Hi Christian,
> > > > > >
> > > > > > Sure, and thanks a lot again.
> > > > > >
> > > > > > Regards,
> > > > > > Robin
> > > > > >
> > > > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> > > wrote:
> > > > > > >
> > > > > > > Hi Robin
> > > > > > >
> > > > > > > I will look a bit more into that model… It sounds like you
> > > should
> > > > > > > scale your initial positions as well, but I havent got a
> > chance to
> > > > > > > look at it yet… I will get back to you.
> > > > > > >
> > > > > > > Best regards
> > > > > > > Christian, AnyBody Support
> > > > > > >
> > > > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
> > wrote:
> > > > > > > >
> > > > > > > > Hi Christian,
> > > > > > > >
> > > > > > > > Thanks for the answers. I have another question.
> > > > > > > > I tried to scale my model using
> > > > > > > > #include
“…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > > > > > > > The kinematics seems ok without muscles on the model,
and I
> > > > > could set
> > > > > > > > its initial positions. However, when I changed the
model to
> > > > one with
> > > > > > > > muscles, using
> > > > > > > > #include
> > > > > > >
> “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > > > > > > > The model wouldn’t set its initial postions and gave a
total
> > > > > kinematic
> > > > > > > > error of (final kin. error = 5.643448E+000).
> > > > > > > >
> > > > > > > > Why is this so?
> > > > > > > >
> > > > > > > > Best Regards,
> > > > > > > > Robin
> > > > > > > >
> > > > > > > >
> > > > > > > >

Hi Robin

I can’t load the model because you use a AnySailor.any? I don’t have
that one?
I can change it to another one, but I don’t know how yours are?

Best regards
Christian, AnyBody Support

— In anyscript@yahoogroups.com, “Robin” <giggsyagami07@…> wrote:
>
> Hi Christian,
>
> I’ve ammended the initial positions that you have suggested but it’s
> still the same scaling problem. After scaling, the model runs
> kinematically as expected.
>
> But after adding muscles, the model seems to have some error. The
> muscles look like they stick to the origin of the axes and the model
> looks slanted.
>
> I’ve posted the model up in Robin’s Work folder. Hope you’d have some
> ideas/suggestions. Thanks.
>
> Regards,
> Robin
>
> — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> >
> > Hi Robin
> >
> > From my point of view it seems ok… I guess you could also do it with
> > a couple of markers.
> >
> > Best regards
> > Christian, AnyBody Support
> >
> > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > >
> > > Hi Christian,
> > >
> > > Thanks a lot. I will take a look at it. Another problem I face
is the
> > > interaction between the human body and the seat. If you noticed, I
> > > used spherical joints - somehow I don’t think it is right. Any
> > > suggestions?
> > >
> > > Best Regards,
> > > Robin
> > >
> > >
> > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
wrote:
> > > >
> > > > Hi Robin
> > > >
> > > > I took a look at your model. By removing the lines that makes the
> > > > errors in the InitialPosition.any (I uploaded the edited file to
> your
> > > > directory)
> > > > This will make the model run. I get a recruitment error at the
79th
> > > > time step. I haven’t found the actual problem, but it seems
like it
> > > > comes from the hip. Try look at the hip at the 79th time step.
> > > >
> > > > By the way you use the uniform scaling. I just want to remind
> you that
> > > > the recommended way of scaling is the LengthMassFat.
> > > >
> > > > Let me hear how it goes.
> > > >
> > > > Best regards
> > > > Christian, AnyBody Support
> > > >
> > > >
> > > >
> > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > > > >
> > > > > Hi Christian,
> > > > >
> > > > > I have it zipped and posted up in the files section under the
> folder
> > > > > called “Robin’s Work”.
> > > > > Thanks. =)
> > > > >
> > > > > Best Regards,
> > > > > Robin
> > > > >
> > > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> > wrote:
> > > > > >
> > > > > > Hi Robin
> > > > > >
> > > > > > Ok I was looking a bit into it, but now I would like to
see the
> > > > > > model… please?
> > > > > >
> > > > > > Best regards
> > > > > > Christian, AnyBody Support
> > > > > >
> > > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
> wrote:
> > > > > > >
> > > > > > > Hi Christian,
> > > > > > >
> > > > > > > Sure, and thanks a lot again.
> > > > > > >
> > > > > > > Regards,
> > > > > > > Robin
> > > > > > >
> > > > > > > — In anyscript@yahoogroups.com, “AnyBody Support”
<support@>
> > > > wrote:
> > > > > > > >
> > > > > > > > Hi Robin
> > > > > > > >
> > > > > > > > I will look a bit more into that model… It sounds
like you
> > > > should
> > > > > > > > scale your initial positions as well, but I havent got a
> > > chance to
> > > > > > > > look at it yet… I will get back to you.
> > > > > > > >
> > > > > > > > Best regards
> > > > > > > > Christian, AnyBody Support
> > > > > > > >
> > > > > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
> > > wrote:
> > > > > > > > >
> > > > > > > > > Hi Christian,
> > > > > > > > >
> > > > > > > > > Thanks for the answers. I have another question.
> > > > > > > > > I tried to scale my model using
> > > > > > > > > #include
> “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > > > > > > > > The kinematics seems ok without muscles on the model,
> and I
> > > > > > could set
> > > > > > > > > its initial positions. However, when I changed the
> model to
> > > > > one with
> > > > > > > > > muscles, using
> > > > > > > > > #include
> > > > > > > >
> > “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > > > > > > > > The model wouldn’t set its initial postions and gave a
> total
> > > > > > kinematic
> > > > > > > > > error of (final kin. error = 5.643448E+000).
> > > > > > > > >
> > > > > > > > > Why is this so?
> > > > > > > > >
> > > > > > > > > Best Regards,
> > > > > > > > > Robin
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
>

Hi,

Sorry about that. I’ve posted it up in the same folder. Thanks again.

Best Regards,
Robin

— In anyscript@yahoogroups.com, “AnyBody Support” <support@…> wrote:
>
> Hi Robin
>
> I can’t load the model because you use a AnySailor.any? I don’t have
> that one?
> I can change it to another one, but I don’t know how yours are?
>
> Best regards
> Christian, AnyBody Support
>
>
> — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> >
> > Hi Christian,
> >
> > I’ve ammended the initial positions that you have suggested but it’s
> > still the same scaling problem. After scaling, the model runs
> > kinematically as expected.
> >
> > But after adding muscles, the model seems to have some error. The
> > muscles look like they stick to the origin of the axes and the model
> > looks slanted.
> >
> > I’ve posted the model up in Robin’s Work folder. Hope you’d have some
> > ideas/suggestions. Thanks.
> >
> > Regards,
> > Robin
> >
> > — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> > >
> > > Hi Robin
> > >
> > > From my point of view it seems ok… I guess you could also do
it with
> > > a couple of markers.
> > >
> > > Best regards
> > > Christian, AnyBody Support
> > >
> > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > > >
> > > > Hi Christian,
> > > >
> > > > Thanks a lot. I will take a look at it. Another problem I face
> is the
> > > > interaction between the human body and the seat. If you noticed, I
> > > > used spherical joints - somehow I don’t think it is right. Any
> > > > suggestions?
> > > >
> > > > Best Regards,
> > > > Robin
> > > >
> > > >
> > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> wrote:
> > > > >
> > > > > Hi Robin
> > > > >
> > > > > I took a look at your model. By removing the lines that
makes the
> > > > > errors in the InitialPosition.any (I uploaded the edited file to
> > your
> > > > > directory)
> > > > > This will make the model run. I get a recruitment error at the
> 79th
> > > > > time step. I haven’t found the actual problem, but it seems
> like it
> > > > > comes from the hip. Try look at the hip at the 79th time step.
> > > > >
> > > > > By the way you use the uniform scaling. I just want to remind
> > you that
> > > > > the recommended way of scaling is the LengthMassFat.
> > > > >
> > > > > Let me hear how it goes.
> > > > >
> > > > > Best regards
> > > > > Christian, AnyBody Support
> > > > >
> > > > >
> > > > >
> > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
wrote:
> > > > > >
> > > > > > Hi Christian,
> > > > > >
> > > > > > I have it zipped and posted up in the files section under the
> > folder
> > > > > > called “Robin’s Work”.
> > > > > > Thanks. =)
> > > > > >
> > > > > > Best Regards,
> > > > > > Robin
> > > > > >
> > > > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> > > wrote:
> > > > > > >
> > > > > > > Hi Robin
> > > > > > >
> > > > > > > Ok I was looking a bit into it, but now I would like to
> see the
> > > > > > > model… please?
> > > > > > >
> > > > > > > Best regards
> > > > > > > Christian, AnyBody Support
> > > > > > >
> > > > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
> > wrote:
> > > > > > > >
> > > > > > > > Hi Christian,
> > > > > > > >
> > > > > > > > Sure, and thanks a lot again.
> > > > > > > >
> > > > > > > > Regards,
> > > > > > > > Robin
> > > > > > > >
> > > > > > > > — In anyscript@yahoogroups.com, “AnyBody Support”
> <support@>
> > > > > wrote:
> > > > > > > > >
> > > > > > > > > Hi Robin
> > > > > > > > >
> > > > > > > > > I will look a bit more into that model… It sounds
> like you
> > > > > should
> > > > > > > > > scale your initial positions as well, but I havent got a
> > > > chance to
> > > > > > > > > look at it yet… I will get back to you.
> > > > > > > > >
> > > > > > > > > Best regards
> > > > > > > > > Christian, AnyBody Support
> > > > > > > > >
> > > > > > > > > — In anyscript@yahoogroups.com, “Robin”
<giggsyagami07@>
> > > > wrote:
> > > > > > > > > >
> > > > > > > > > > Hi Christian,
> > > > > > > > > >
> > > > > > > > > > Thanks for the answers. I have another question.
> > > > > > > > > > I tried to scale my model using
> > > > > > > > > > #include
> > “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > > > > > > > > > The kinematics seems ok without muscles on the model,
> > and I
> > > > > > > could set
> > > > > > > > > > its initial positions. However, when I changed the
> > model to
> > > > > > one with
> > > > > > > > > > muscles, using
> > > > > > > > > > #include
> > > > > > > > >
> > > “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > > > > > > > > > The model wouldn’t set its initial postions and gave a
> > total
> > > > > > > kinematic
> > > > > > > > > > error of (final kin. error = 5.643448E+000).
> > > > > > > > > >
> > > > > > > > > > Why is this so?
> > > > > > > > > >
> > > > > > > > > > Best Regards,
> > > > > > > > > > Robin
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> >
>

Hi Robin

I get some big kinematic errors. By looking at the loaded model, it
seems like the model is not big enough… The legs are not long enough
and they split in the knee and ankle. It seems like you have attached
the model to the bench with spherical joints, which makes means that
the model have to fit perfectly to the bench, which not is the case. I
think I would take a look at the AnyKinEqSimpleDriver. By using a
driver you can make the foot follow the marker in the axis’ you like,
i.e. you can make the foot able to move in the longitudinal axis of
the leg but not up and down. Then it doesn’t matter how tall the model
is. Does it make any sense? or have I misunderstood something?

Best regards
Christian, AnyBody Support

— In anyscript@yahoogroups.com, “Robin” <giggsyagami07@…> wrote:
>
> Hi,
>
> Sorry about that. I’ve posted it up in the same folder. Thanks again.
>
> Best Regards,
> Robin
>
> — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> >
> > Hi Robin
> >
> > I can’t load the model because you use a AnySailor.any? I don’t have
> > that one?
> > I can change it to another one, but I don’t know how yours are?
> >
> > Best regards
> > Christian, AnyBody Support
> >
> >
> > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > >
> > > Hi Christian,
> > >
> > > I’ve ammended the initial positions that you have suggested but it’s
> > > still the same scaling problem. After scaling, the model runs
> > > kinematically as expected.
> > >
> > > But after adding muscles, the model seems to have some error. The
> > > muscles look like they stick to the origin of the axes and the model
> > > looks slanted.
> > >
> > > I’ve posted the model up in Robin’s Work folder. Hope you’d have
some
> > > ideas/suggestions. Thanks.
> > >
> > > Regards,
> > > Robin
> > >
> > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
wrote:
> > > >
> > > > Hi Robin
> > > >
> > > > From my point of view it seems ok… I guess you could also do
> it with
> > > > a couple of markers.
> > > >
> > > > Best regards
> > > > Christian, AnyBody Support
> > > >
> > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> > > > >
> > > > > Hi Christian,
> > > > >
> > > > > Thanks a lot. I will take a look at it. Another problem I face
> > is the
> > > > > interaction between the human body and the seat. If you
noticed, I
> > > > > used spherical joints - somehow I don’t think it is right. Any
> > > > > suggestions?
> > > > >
> > > > > Best Regards,
> > > > > Robin
> > > > >
> > > > >
> > > > > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
> > wrote:
> > > > > >
> > > > > > Hi Robin
> > > > > >
> > > > > > I took a look at your model. By removing the lines that
> makes the
> > > > > > errors in the InitialPosition.any (I uploaded the edited
file to
> > > your
> > > > > > directory)
> > > > > > This will make the model run. I get a recruitment error at the
> > 79th
> > > > > > time step. I haven’t found the actual problem, but it seems
> > like it
> > > > > > comes from the hip. Try look at the hip at the 79th time step.
> > > > > >
> > > > > > By the way you use the uniform scaling. I just want to remind
> > > you that
> > > > > > the recommended way of scaling is the LengthMassFat.
> > > > > >
> > > > > > Let me hear how it goes.
> > > > > >
> > > > > > Best regards
> > > > > > Christian, AnyBody Support
> > > > > >
> > > > > >
> > > > > >
> > > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
> wrote:
> > > > > > >
> > > > > > > Hi Christian,
> > > > > > >
> > > > > > > I have it zipped and posted up in the files section
under the
> > > folder
> > > > > > > called “Robin’s Work”.
> > > > > > > Thanks. =)
> > > > > > >
> > > > > > > Best Regards,
> > > > > > > Robin
> > > > > > >
> > > > > > > — In anyscript@yahoogroups.com, “AnyBody Support”
<support@>
> > > > wrote:
> > > > > > > >
> > > > > > > > Hi Robin
> > > > > > > >
> > > > > > > > Ok I was looking a bit into it, but now I would like to
> > see the
> > > > > > > > model… please?
> > > > > > > >
> > > > > > > > Best regards
> > > > > > > > Christian, AnyBody Support
> > > > > > > >
> > > > > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
> > > wrote:
> > > > > > > > >
> > > > > > > > > Hi Christian,
> > > > > > > > >
> > > > > > > > > Sure, and thanks a lot again.
> > > > > > > > >
> > > > > > > > > Regards,
> > > > > > > > > Robin
> > > > > > > > >
> > > > > > > > > — In anyscript@yahoogroups.com, “AnyBody Support”
> > <support@>
> > > > > > wrote:
> > > > > > > > > >
> > > > > > > > > > Hi Robin
> > > > > > > > > >
> > > > > > > > > > I will look a bit more into that model… It sounds
> > like you
> > > > > > should
> > > > > > > > > > scale your initial positions as well, but I havent
got a
> > > > > chance to
> > > > > > > > > > look at it yet… I will get back to you.
> > > > > > > > > >
> > > > > > > > > > Best regards
> > > > > > > > > > Christian, AnyBody Support
> > > > > > > > > >
> > > > > > > > > > — In anyscript@yahoogroups.com, “Robin”
> <giggsyagami07@>
> > > > > wrote:
> > > > > > > > > > >
> > > > > > > > > > > Hi Christian,
> > > > > > > > > > >
> > > > > > > > > > > Thanks for the answers. I have another question.
> > > > > > > > > > > I tried to scale my model using
> > > > > > > > > > > #include
> > > “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > > > > > > > > > > The kinematics seems ok without muscles on the
model,
> > > and I
> > > > > > > > could set
> > > > > > > > > > > its initial positions. However, when I changed the
> > > model to
> > > > > > > one with
> > > > > > > > > > > muscles, using
> > > > > > > > > > > #include
> > > > > > > > > >
> > > > “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > > > > > > > > > > The model wouldn’t set its initial postions and
gave a
> > > total
> > > > > > > > kinematic
> > > > > > > > > > > error of (final kin. error = 5.643448E+000).
> > > > > > > > > > >
> > > > > > > > > > > Why is this so?
> > > > > > > > > > >
> > > > > > > > > > > Best Regards,
> > > > > > > > > > > Robin
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > >
> >
>

Hi,

Your interpretation sounds correct to me. Thank for the idea. I’ll
try it out.

Best Regards,
Robin

— In anyscript@yahoogroups.com, “AnyBody Support” <support@…>
wrote:
>
> Hi Robin
>
> I get some big kinematic errors. By looking at the loaded model, it
> seems like the model is not big enough… The legs are not long
enough
> and they split in the knee and ankle. It seems like you have
attached
> the model to the bench with spherical joints, which makes means
that
> the model have to fit perfectly to the bench, which not is the
case. I
> think I would take a look at the AnyKinEqSimpleDriver. By using a
> driver you can make the foot follow the marker in the axis’ you
like,
> i.e. you can make the foot able to move in the longitudinal axis of
> the leg but not up and down. Then it doesn’t matter how tall the
model
> is. Does it make any sense? or have I misunderstood something?
>
> Best regards
> Christian, AnyBody Support
>
>
> — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@> wrote:
> >
> > Hi,
> >
> > Sorry about that. I’ve posted it up in the same folder. Thanks
again.
> >
> > Best Regards,
> > Robin
> >
> > — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
wrote:
> > >
> > > Hi Robin
> > >
> > > I can’t load the model because you use a AnySailor.any? I
don’t have
> > > that one?
> > > I can change it to another one, but I don’t know how yours are?
> > >
> > > Best regards
> > > Christian, AnyBody Support
> > >
> > >
> > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
wrote:
> > > >
> > > > Hi Christian,
> > > >
> > > > I’ve ammended the initial positions that you have suggested
but it’s
> > > > still the same scaling problem. After scaling, the model runs
> > > > kinematically as expected.
> > > >
> > > > But after adding muscles, the model seems to have some
error. The
> > > > muscles look like they stick to the origin of the axes and
the model
> > > > looks slanted.
> > > >
> > > > I’ve posted the model up in Robin’s Work folder. Hope you’d
have
> some
> > > > ideas/suggestions. Thanks.
> > > >
> > > > Regards,
> > > > Robin
> > > >
> > > > — In anyscript@yahoogroups.com, “AnyBody Support”
<support@>
> wrote:
> > > > >
> > > > > Hi Robin
> > > > >
> > > > > From my point of view it seems ok… I guess you could
also do
> > it with
> > > > > a couple of markers.
> > > > >
> > > > > Best regards
> > > > > Christian, AnyBody Support
> > > > >
> > > > > — In anyscript@yahoogroups.com, “Robin” <giggsyagami07@>
wrote:
> > > > > >
> > > > > > Hi Christian,
> > > > > >
> > > > > > Thanks a lot. I will take a look at it. Another problem
I face
> > > is the
> > > > > > interaction between the human body and the seat. If you
> noticed, I
> > > > > > used spherical joints - somehow I don’t think it is
right. Any
> > > > > > suggestions?
> > > > > >
> > > > > > Best Regards,
> > > > > > Robin
> > > > > >
> > > > > >
> > > > > > — In anyscript@yahoogroups.com, “AnyBody Support”
<support@>
> > > wrote:
> > > > > > >
> > > > > > > Hi Robin
> > > > > > >
> > > > > > > I took a look at your model. By removing the lines that
> > makes the
> > > > > > > errors in the InitialPosition.any (I uploaded the
edited
> file to
> > > > your
> > > > > > > directory)
> > > > > > > This will make the model run. I get a recruitment
error at the
> > > 79th
> > > > > > > time step. I haven’t found the actual problem, but it
seems
> > > like it
> > > > > > > comes from the hip. Try look at the hip at the 79th
time step.
> > > > > > >
> > > > > > > By the way you use the uniform scaling. I just want to
remind
> > > > you that
> > > > > > > the recommended way of scaling is the LengthMassFat.
> > > > > > >
> > > > > > > Let me hear how it goes.
> > > > > > >
> > > > > > > Best regards
> > > > > > > Christian, AnyBody Support
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > — In anyscript@yahoogroups.com, “Robin”
<giggsyagami07@>
> > wrote:
> > > > > > > >
> > > > > > > > Hi Christian,
> > > > > > > >
> > > > > > > > I have it zipped and posted up in the files section
> under the
> > > > folder
> > > > > > > > called “Robin’s Work”.
> > > > > > > > Thanks. =)
> > > > > > > >
> > > > > > > > Best Regards,
> > > > > > > > Robin
> > > > > > > >
> > > > > > > > — In anyscript@yahoogroups.com, “AnyBody Support”
> <support@>
> > > > > wrote:
> > > > > > > > >
> > > > > > > > > Hi Robin
> > > > > > > > >
> > > > > > > > > Ok I was looking a bit into it, but now I would
like to
> > > see the
> > > > > > > > > model… please?
> > > > > > > > >
> > > > > > > > > Best regards
> > > > > > > > > Christian, AnyBody Support
> > > > > > > > >
> > > > > > > > > — In anyscript@yahoogroups.com, “Robin”
<giggsyagami07@>
> > > > wrote:
> > > > > > > > > >
> > > > > > > > > > Hi Christian,
> > > > > > > > > >
> > > > > > > > > > Sure, and thanks a lot again.
> > > > > > > > > >
> > > > > > > > > > Regards,
> > > > > > > > > > Robin
> > > > > > > > > >
> > > > > > > > > > — In anyscript@yahoogroups.com, “AnyBody
Support”
> > > <support@>
> > > > > > > wrote:
> > > > > > > > > > >
> > > > > > > > > > > Hi Robin
> > > > > > > > > > >
> > > > > > > > > > > I will look a bit more into that model… It
sounds
> > > like you
> > > > > > > should
> > > > > > > > > > > scale your initial positions as well, but I
havent
> got a
> > > > > > chance to
> > > > > > > > > > > look at it yet… I will get back to you.
> > > > > > > > > > >
> > > > > > > > > > > Best regards
> > > > > > > > > > > Christian, AnyBody Support
> > > > > > > > > > >
> > > > > > > > > > > — In anyscript@yahoogroups.com, “Robin”
> > <giggsyagami07@>
> > > > > > wrote:
> > > > > > > > > > > >
> > > > > > > > > > > > Hi Christian,
> > > > > > > > > > > >
> > > > > > > > > > > > Thanks for the answers. I have another
question.
> > > > > > > > > > > > I tried to scale my model using
> > > > > > > > > > > > #include
> > > > “…\BRep\Aalborg\Scaling\ScalingUniform.any”
> > > > > > > > > > > > The kinematics seems ok without muscles on
the
> model,
> > > > and I
> > > > > > > > > could set
> > > > > > > > > > > > its initial positions. However, when I
changed the
> > > > model to
> > > > > > > > one with
> > > > > > > > > > > > muscles, using
> > > > > > > > > > > > #include
> > > > > > > > > > >
> > > >
> “…\BRep\Aalborg\BodyModels\FullBodyModel\BodyModel.any”,
> > > > > > > > > > > > The model wouldn’t set its initial postions
and
> gave a
> > > > total
> > > > > > > > > kinematic
> > > > > > > > > > > > error of (final kin. error = 5.643448E+000).
> > > > > > > > > > > >
> > > > > > > > > > > > Why is this so?
> > > > > > > > > > > >
> > > > > > > > > > > > Best Regards,
> > > > > > > > > > > > Robin
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > >
> > >
> >
>