Hi
I have followed your advice and have put one node in shank and one in foot for
they can be connected to other nodes.
I have also made an include file called Lig.any
Another include file called LigPar.any
I was searching in the BodyModel_Mus3E where we do call the Mus.any and
MusPar.any and have found it in LefMus3E.root.any
So, i have made two folders there next to them as follows
// Ligaments
AnyFolder Lig = {
#include "Lig.any"
};
// LigamentParameters
AnyFolder LigPar = {
AnyVar StressIndex=.StrengthRef.StrengthIndexLeg;
#include "LigPar.any"
};
In the include file Lig.any i have included the following statement:
//Calcanefibular Ligament
AnyViaPointLigament CalcaneoFibular = {
AnyLigamentModelPol &LigMdl = ..LigPar.CalcaneoFibularPar;
AnyRefNode &Org = ..Seg.Shank.CalcaneoFibularNode;
THIS IS LINE 14 WHERE I AM GETTING THE ERROR !
AnyRefNode &Ins = ..Seg.Foot.CalcaneoFibularNode;
AnyDrawPLine drw = {
Thickness = 0.002;
RGB = {1,0,0};
};
In the include file LigPar.any i have included teh following statement:
AnyVar StrengthScaleShank = ...Scaling.StrengthScaling.Shank.StrengthScale;
AnyVar StrengthScaleThigh = ...Scaling.StrengthScaling.Thigh.StrengthScale;
AnyVar StrengthScalePelvis = ...Scaling.StrengthScaling.Pelvis.StrengthScale;
AnyVar FiberLengthScaleShank =
...Scaling.FiberLengthScaling.Shank..FiberLengthScale;
AnyVar FiberLengthScaleThigh =
...Scaling.FiberLengthScaling.Thigh.FiberLengthScale;
//Ligament Parameter for CalcaneoFibular Ligament
AnyLigamentModelPol CalcaneoFibularPar = {
L0 = 0.375;
eps1 = 0.053;
F1 = .StrengthScaleShank*.StressIndex*1000;
// a0 = 1;
// a1 = 1;
// LinRegionOnOff = On;
};
Running the Model back again I am getting a silly error from a silly mistake i
could have done:
ERROR(SCR.PRS9) : T:\AnyScripts\Repository.6.1\BRep\Aalborg\Leg3D\Lig.any(14)
: 'CalcaneoFibularNode' : Unresolved object
As I can see, it didn't have any problem with the LigPar,any include file but is
it having problem with the Lig.any include file.
I tried to swap the insertion and origin points but i am still getting the error
on line 14 so i thought that i have mistyped something but they seem fine for me
expect if i needed to make some call somewhere else.
I do beleive that it will be difficult always to put the first ligament on track
and it will be easier for the rest.
Can I get some help with this error and how I should fix it ?
Regards
----- Original Message ----
From: AnyBody Support <support@anybodytech.com>
To: anyscript@yahoogroups.com
Sent: Wednesday, March 26, 2008 8:31:08 AM
Subject: RE: [AnyScript] Re: Adding muscles to BodyModel_Mus3E
Hi Mike
As I read your script the ligament originates on the foot and attach on the
foot, and it do not have connection to other nodes. This means that it will
not have any effect on the model at all since there will be no length change
for any movement. I guess one of these nodes should be on the shank.
About the error message, this is a bug in the system, I am very sorry for
this. We will fix this for the next release of the system, thanks for making
us aware of this. L0 is by mistake set to be a Constant, which means that
the calibration study is not allowed to calibrate it. Since you have
inserted the ligament in the muscles folder it will automatically be part of
the calibration study with the muscles.
The best way for you to fix it, is to place the ligament in another folder
than the muscles so that it will not be calibrated and then calibrate it
manually, by adjusting the parameters like L0.
There is a tutorial about the ligaments if you have not seen it
http://www.anybodyt ech.com/682. 0.html it might be helpful.
Best regards
Søren, AnyBody Support
-----Original Message-----
From: anyscript@yahoogrou ps.com [mailto:anyscript@yahoogrou ps.com] On Behalf
Of Mike Arakilo
Sent: 25 March 2008 15:02
To: anyscript@yahoogrou ps.com
Subject: Re: [AnyScript] Re: Adding muscles to BodyModel_Mus3E
Hi
I understood very well what you have meant and it sounds fair enough though
i understand that the bones are for visual purposes and the nodes are more
effective.
I followed the procedure you have told me but i got some errors.
for the Calcaneo fibular ligament i made the following statments and put
them in the specific file:
In BRep/Aalborg/ Leg3D/Seg i have added the following statements in the foot
folder:
// Drawing of the ORIGIN point of the calcaneofibular ligament on the
calcaneous
AnyRefNode CalcaneoFibularOrig in = {
sRel = .Scale({0.012, 0.075, ....Sign0.022} );
AnyDrawRefFrame drwRefFrameHeelNode = {RGB = {0, 0, 0};};
};
// Drawing the INSERTION point of the calcaneofibular ligament on the
Lateral Maleolous
AnyRefNode CalcaneofubularInse rtion = {
sRel = .Scale({0.065, 0..053, ...Sign0.025} );
AnyDrawRefFrame drwRefFrameLateralM aleolouusNode = {RGB = {0, 0, 0};};
};
In BRep/Aalborg/ Leg3D/Mus i have added the following statements:
//Calcanefibular Ligament
AnyViaPointLigament CalcaneoFibular = {
AnyLigamentModelPol &LigMdl = ..MusPar.CalcaneoFi bularPar;
AnyRefNode &Ori = ..Seg.Foot.Calcaneo FibularOrigin;
//AnyRefNode &Via = .Arm.ViaNode;
AnyRefNode &Ins = ..Seg.Foot.Calcaneo fubularInsertion ;
AnyDrawPLine drw = {
Thickness = 0.05;
RGB = {1,0,0};
};
};
In BRep/Aalborg/ Leg3D/MusPar i have added the following statments
// Ligament Parameter for CalcaneoFibular Ligament
AnyLigamentModelPol CalcaneoFibularPar = {
L0 = 0.375;
eps1 = 0.053;
F1 = .StrengthScaleShank .StressIndex 1000;
// a0 = 1;
// a1 = 1;
// LinRegionOnOff = On;
};
The ligament parameters are set randomly just for I can test the code. But i
got a strange drawing of that ligament with some warmings.
I got the following warning during building the model.
Configuring model...
WARNING(OBJ. DES1) :
T:\AnyScripts\ Repository. 6.1\BRep\ Aalborg\Leg3D\ LegCal1.any( 51) :
'LegCalibrationStud y1.Internal_ dependency' : Wrong initialization of
'AnyVarRef' linking to value 'L0' in study 'LegCalibrationStud y1' :
Dependency (Right-hand side or internal dependency) has earlier evaluation
moment than this AnyVarRef object, which is not allowed for AnyVarRef
initialization.
Location of 'L0' :
T:\AnyScripts\ Repository. 6.1\BRep\ Aalborg\Leg3D\ MusPar.any( 21)
WARNING(OBJ. DES1) :
T:\AnyScripts\ Repository. 6.1\BRep\ Aalborg\Leg3D\ LegCal1... any(51) :
'LegCalibrationStud y1.Internal_ dependency' : Wrong initialization of
'AnyVarRef' linking to value 'L0' in study 'LegCalibrationStud y1' :
Dependency (Right-hand side or internal dependency) has earlier evaluation
moment than this AnyVarRef object, which is not allowed for AnyVarRef
initialization.
Location of 'L0' :
T:\AnyScripts\ Repository. 6.1\BRep\ Aalborg\Leg3D\ MusPar.any( 21)
I beleive they are the same warming but for right and left.
and then i got a strange ligament model so big and round all the ankle
joint. There is certainly an error in it.
I have run muscle calibration and Inverse Dynamics and got a folder for this
ligament with postion velocity and acceleration without any Forces.
What can I do to enhance this model for i can add further ligaments at a
later stage?
I have tried to put a muscle model on the calcaneofibular ligament using
AnyMuscleModel3E and AnyViaPointMuscle and it worked without warmings and
gave me all the forces and muscle activity.
Can i get further help in this ?
Regards
----- Original Message ----
From: AnyBody Support <support@anybodytech .com>
To: anyscript@yahoogrou ps.com
Sent: Tuesday, March 25, 2008 11:09:25 AM
Subject: RE: [AnyScript] Re: Adding muscles to BodyModel_Mus3E
Hi Mike
The Leg3D model of the repository which the Gait3D model is using, do not
include the Fibula bone, so I am little confused, but maybe you thought that
the Tibia and Fibula bone geometry file was somehow merged in this model.
I have double checked and the Tibia bone looks ok in the Gait3D model.
In order to add the Calcaneo fibular ligament you will need to add a new
node on Tibia for this at the Malleolus lateralis. This node will be placed
in free air since the Fibula is not there.
I hope it made things clearer, otherwise please write again
Best regards
Søren, AnyBody Support
-----Original Message-----
From: anyscript@yahoogrou ps.com [mailto:anyscript@ yahoogrou ps.com] On
Behalf
Of Mike Arakilo
Sent: 20 March 2008 14:50
To: anyscript@yahoogrou ps.com
Subject: Re: [AnyScript] Re: Adding muscles to BodyModel_Mus3E
Hi again
I was trying to follow the procedure on adding some ligaments to the model
in Gait3D and i have noticed a mistake in the model itself.
I was trying to add calcaneofibular ligament as a beginning of the process,
working on the right leg as usual i noticed that there is mistake with the
model on the fibula.
The bones are reverse side i.e fibula on the right leg should be on the
right and pointing outwards the body whereas in this model it is on the left
and pointing inside.
I dont know the consequences of all the nodes present for example the
lateral malleolus is strictly affected by the fibula. Is there any solution
for correcting the model ?
Sorry for any inconvenience ...
Thanks for your reply
Regards
----- Original Message ----
From: AnyBody Support <support@anybodytec h .com>
To: anyscript@yahoogrou ps.com
Sent: Tuesday, March 18, 2008 12:12:21 PM
Subject: RE: [AnyScript] Re: Adding muscles to BodyModel_Mus3E
Hi Mike
There are in principle no units definition in AnyBody, the user has to make
sure that the units provided in the models fits with each other.
That said all models in the repository are based on SI units so geometry are
in meters, forces in newtons, moments in newtons meters etc, I would not
recommend to use any other units.
The .Scale which is put around all srel values makes it possible to scale
these nodes. These nodes can be scaled in different ways, depending on the
scaling law provided in the main file. Please take a look in the
Gait3D.main. any file to see an example on this. If you choose the
ScalingStandard. any file it will not scale the model.
Best regards
Søren, AnyBody Support
-----Original Message-----
From: anyscript@yahoogrou ps.com [mailto:anyscript@ yahoogrou ps.com] On
Behalf
Of Mike Arakilo
Sent: 18 March 2008 12:39
To: anyscript@yahoogrou ps.com
Subject: Re: [AnyScript] Re: Adding muscles to BodyModel_Mus3E
Hi Sylvain
Sorry for missing a part in my previous email.
I wanted to ask you how big is 1 unit in AnyBody ? Is it 1cm ?
Why we are making .Scale for the coordinates ? Are they the real ones ?
Thanks for your reply
Regards
----- Original Message ----
From: AnyBody Support <support@anybodytec h .com>
To: anyscript@yahoogrou ps.com
Sent: Friday, March 14, 2008 8:58:30 AM
Subject: [AnyScript] Re: Adding muscles to BodyModel_Mus3E
Hi Mike,
To add muscles and ligaments you first need to define the origin and
insertion (optionally via points) of each muscle. This must be done
by adding AnyRefNode in the corresponding segment folder, foot and
shank in your case located in Brep/Aalborg/ Leg3D/Seg. Then add the
muscles in the files …/Leg3D/MusWithNames .
Concerning the coordinate system: there is a global reference frame
but then each segment has is own local frame. You can visualize such
frame by adding an AnyDrawRefFrame in the segment folder. The node of
a segment are defined in the local frame of the segment, so you have
to enter the origin and insertion point coordinates according to
local frame of the segment they belong.
And to visualize the reaction forces on a joint just go in the folder
you already found (..../Jnt/Ankle) after running the simulation. You
will find here a subfolder called Reaction, enter and click Pos, you
will now see the reaction forces in the joint.
Best regards,
Sylvain, AnyBody Support..
--- In anyscript@yahoogrou ps.com, "marakilo" <marakilo@.. .> wrote:
>
> Hi,
>
> Following the previous messages about foot model i decided to try
the
> one segment model in anybody and see if i can get data i need..
> I investigated the Gait3D model in anybody and understood very well
> the code for it but i have some more questions on it.
>
> I want to add muscles and ligaments around the ankle and wanted to
ask
> you how can I do it ? and in which file ?
> What I didn't understand too, is how we are putting the x y z
> coordinates in modeling. I know we are defining a global reference
> with coordinates { 0, 0, 0 } but i m not able to know how i define
> exactly the muscles in that frame myself.
>
> One other thing, i have read that I can see the ankle joint forces.
I
> have found the folder Ankle joint when i m running the simulation
but
> how can i see the forces? because inside this folder there is
> positions velocities and acceleration. Is there way to investigate
the
> forces in the ankle joint itself ?
>
> Thanks
>
> Mike
>
..,._
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