372 lines (305 with data), 19.1 kB
/* -------------------------------------------------------------------------------------------
This file implements a scaling law based on segment length and mass. The y (length) direction
of each segment is scaled according to Anthro joint center distances. The cross sectional
directions, x and z, are scaled according to the segment mass, and so is the strength.
John Rasmussen & Mark de Zee, 2004.11.23
------------------------------------------------------------------------------------------- */
// Scaling law.
// Main.HumanModel.Scaling
AnyFolder MassScaling = {
AnyFolder Pelvis = { AnyVar MassScale = ...Anthropometrics.SegmentMasses.Pelvis / ..StandardParameters.Pelvis.Mass; };
AnyFolder Head = { AnyVar MassScale = (...Anthropometrics.SegmentMasses.Head) / (..StandardParameters.Head.Mass); };
AnyFolder Cervical = { AnyVar MassScale = .Head.MassScale;};
AnyFolder Thorax = { AnyVar MassScale = ( ...Anthropometrics.SegmentMasses.Thorax) / (..StandardParameters.Trunk.Mass ); }; //Ratio of mass of thorax plus lumbar mass
AnyFolder Lumbar = { AnyVar MassScale = (...Anthropometrics.SegmentMasses.Lumbar) / (..StandardParameters.Lumbar.Mass); };//Ratio of mass of lumbar mass
AnyFolder Right =
{
AnyFolder Clavicula = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Right.Shoulder / (...StandardParameters.Clavicula.Mass + ...StandardParameters.Scapula.Mass); };
AnyFolder Scapula = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Right.Shoulder / (...StandardParameters.Clavicula.Mass + ...StandardParameters.Scapula.Mass); };
AnyFolder Humerus = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Right.UpperArm / ...StandardParameters.Humerus.Mass; };
AnyFolder Ulna = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Right.LowerArm / (...StandardParameters.Ulna.Mass+ ...StandardParameters.Radius.Mass); };
AnyFolder Radius = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Right.LowerArm / (...StandardParameters.Ulna.Mass+ ...StandardParameters.Radius.Mass); };
AnyFolder Hand = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Right.Hand / ...StandardParameters.Hand.Mass; };
AnyFolder Foot = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Right.Foot / ...StandardParameters.Right.Foot.Mass; };
AnyFolder Talus = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Right.Talus / ...StandardParameters.Right.Talus.Mass; };
AnyFolder Shank = { AnyVar MassScale = (....Anthropometrics.SegmentMasses.Right.Shank) / (...StandardParameters.Right.Shank.Mass+...StandardParameters.Right.Patella.Mass); };
AnyFolder Thigh = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Right.Thigh / ...StandardParameters.Right.Thigh.Mass; };
};
AnyFolder Left =
{
AnyFolder Clavicula = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Left.Shoulder / (...StandardParameters.Clavicula.Mass + ...StandardParameters.Scapula.Mass); };
AnyFolder Scapula = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Left.Shoulder / (...StandardParameters.Clavicula.Mass + ...StandardParameters.Scapula.Mass); };
AnyFolder Humerus = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Left.UpperArm / ...StandardParameters.Humerus.Mass; };
AnyFolder Ulna = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Left.LowerArm / (...StandardParameters.Ulna.Mass+ ...StandardParameters.Radius.Mass); };
AnyFolder Radius = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Left.LowerArm / (...StandardParameters.Ulna.Mass+ ...StandardParameters.Radius.Mass); };
AnyFolder Hand = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Left.Hand / ...StandardParameters.Hand.Mass; };
AnyFolder Foot = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Left.Foot / ...StandardParameters.Left.Foot.Mass; };
AnyFolder Talus = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Left.Talus / ...StandardParameters.Left.Talus.Mass; };
AnyFolder Shank = { AnyVar MassScale = (....Anthropometrics.SegmentMasses.Left.Shank) / (...StandardParameters.Right.Shank.Mass+...StandardParameters.Left.Patella.Mass); };
AnyFolder Thigh = { AnyVar MassScale = ....Anthropometrics.SegmentMasses.Left.Thigh / ...StandardParameters.Left.Thigh.Mass; };
};
};
AnyFolder StrengthScaling = {
AnyFolder Pelvis = { AnyVar StrengthScale = ..MassScaling.Pelvis.MassScale / ..GeometricalScaling.Pelvis.LengthScale; };
AnyFolder Spine = { AnyVar StrengthScale = ..MassScaling.Thorax.MassScale / ..GeometricalScaling.Thorax.LengthScale; };
AnyFolder Right =
{
AnyFolder Humerus = { AnyVar StrengthScale = ...MassScaling.Right.Humerus.MassScale / ...GeometricalScaling.Right.Humerus.LengthScale; };
AnyFolder Ulna = { AnyVar StrengthScale = ...MassScaling.Right.Ulna.MassScale / ...GeometricalScaling.Right.Ulna.LengthScale; };
AnyFolder Hand = { AnyVar StrengthScale = ...MassScaling.Right.Hand.MassScale / ...GeometricalScaling.Right.Hand.ScaleFunction.LengthScale; };
// Strength scaling factors for the leg strength is not normalized with respect to segment length because
// PSCA is calculated based on the muscle fibers which are also scaled separately.
AnyFolder Foot = { AnyVar StrengthScale = ...MassScaling.Right.Foot.MassScale; };
AnyFolder Shank = { AnyVar StrengthScale = ...MassScaling.Right.Shank.MassScale; };
AnyFolder Thigh = { AnyVar StrengthScale = ...MassScaling.Right.Thigh.MassScale; };
};
AnyFolder Left =
{
AnyFolder Humerus = { AnyVar StrengthScale = ...MassScaling.Left.Humerus.MassScale / ...GeometricalScaling.Left.Humerus.LengthScale; };
AnyFolder Ulna = { AnyVar StrengthScale = ...MassScaling.Left.Ulna.MassScale / ...GeometricalScaling.Left.Ulna.LengthScale; };
AnyFolder Hand = { AnyVar StrengthScale = ...MassScaling.Left.Hand.MassScale / ...GeometricalScaling.Left.Hand.ScaleFunction.LengthScale; };
// Strength scaling factors for the leg strength is not normalized with respect to segment length because
// PSCA is calculated based on the muscle fibers which are also scaled separately.
AnyFolder Foot = { AnyVar StrengthScale = ...MassScaling.Left.Foot.MassScale; };
AnyFolder Shank = { AnyVar StrengthScale = ...MassScaling.Left.Shank.MassScale; };
AnyFolder Thigh = { AnyVar StrengthScale = ...MassScaling.Left.Thigh.MassScale; };
};
};
AnyFolder FiberLengthScaling = {
AnyFolder Pelvis = { AnyVar FiberLengthScale = ...Anthropometrics.SegmentDimensions.PelvisWidth / ..StandardParameters.Pelvis.Width; };
AnyFolder Right =
{
AnyFolder Foot = { AnyVar FiberLengthScale = ....Anthropometrics.SegmentDimensions.Right.FootLength / ...StandardParameters.Right.Foot.Length; };
AnyFolder Shank = { AnyVar FiberLengthScale = ....Anthropometrics.SegmentDimensions.Right.ShankLength / ...StandardParameters.Right.Shank.Length; };
AnyFolder Thigh = { AnyVar FiberLengthScale = ....Anthropometrics.SegmentDimensions.Right.ThighLength / ...StandardParameters.Right.Thigh.Length; };
};
AnyFolder Left =
{
AnyFolder Foot = { AnyVar FiberLengthScale = ....Anthropometrics.SegmentDimensions.Left.FootLength / ...StandardParameters.Left.Foot.Length; };
AnyFolder Shank = { AnyVar FiberLengthScale = ....Anthropometrics.SegmentDimensions.Left.ShankLength / ...StandardParameters.Left.Shank.Length; };
AnyFolder Thigh = { AnyVar FiberLengthScale = ....Anthropometrics.SegmentDimensions.Left.ThighLength / ...StandardParameters.Left.Thigh.Length; };
};
};
AnyFolder GeometricalScaling = {
AnyFolder Right ={
AnyFolder Clavicula = {
AnyFunTransform3DLin ScaleFunction = {
AnyMat33 ARel= { {-0.280836, 0.188095, -0.941144}, {-0.004752, 0.980323, 0.197343}, { 0.959744, 0.059893, -0.274416}}';
ScaleMat = ARel*...Thorax.ScaleFunction.ScaleMat*(ARel');
Offset = {0,0,0}*ARel';
};
};
AnyFolder Scapula = {
AnyFunTransform3DLin ScaleFunction = {
AnyMat33 ARel ={{0.561294, -0.097357, -0.821870}, {0.151325, 0.988389, -0.013736}, {0.813664, -0.116660, 0.569509}}';
ScaleMat = ARel*...Thorax.ScaleFunction.ScaleMat*(ARel');
Offset = {0,0,0}*ARel';
};
};
AnyFolder Humerus = {
AnyVar LengthScale = (....Anthropometrics.SegmentDimensions.Right.UpperArmLength / ...StandardParameters.Humerus.Length);
AnyVar ms = ...MassScaling.Right.Humerus.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = {{(.ms/.ls)^0.5, 0, 0},{0, .ls, 0},{0, 0, (.ms/.ls)^0.5}};
Offset = {0,0,0};
};
};
AnyFolder Ulna = {
AnyVar LengthScale = (....Anthropometrics.SegmentDimensions.Right.LowerArmLength / ...StandardParameters.Ulna.Length);
AnyVar ms = ...MassScaling.Right.Ulna.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = {{(.ms/.ls)^0.5, 0, 0},{0, .ls, 0},{0, 0, (.ms/.ls)^0.5}};
Offset = {0,0,0};
};
};
AnyFolder Radius = {
AnyFunTransform3DLin ScaleFunction = {
//This Arel is used for mapping the scaling of ulna into the radius coordinate system
//which is rotated, Arel has been found for a neutral position
AnyMat33 ARel = {{-0.145873, -0.989303, -0.000001}, {0.989303, -0.145873, 0.000001}, {-0.000001, -0.000000, 1.000000}};
AnyMat33 ScaleXYZ = ..Ulna.ScaleFunction.ScaleMat;
ScaleMat = ARel'*ScaleXYZ*ARel;
Offset = {0,0,0}*ARel; };
};
AnyFolder Hand = {
AnyVar HandLength = ....Anthropometrics.SegmentDimensions.Right.HandLength;
AnyVar HandBreadth = ....Anthropometrics.SegmentDimensions.Right.HandBreadth;
AnyFunTransform3DLin ScaleFunction = {
AnyVar BreadthScale = .HandBreadth/....StandardParameters.Hand.HandBreadth;
AnyVar LengthScale = .HandLength/....StandardParameters.Hand.HandLength;
ScaleMat ={{LengthScale,0,0},{0,BreadthScale,0},{0,0,BreadthScale}};
Offset = {0,0,0};
};
};
// Talus uses the scaling function of the Foot segment
AnyFolder &Talus = Foot;
AnyFolder Foot = {
AnyVar LengthScale = ....Anthropometrics.SegmentDimensions.Right.FootLength / ...StandardParameters.Right.Foot.Length;
AnyVar ms = ...MassScaling.Right.Foot.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = {{.ls, 0, 0},{0, (.ms/.ls)^0.5, 0},{0, 0, (.ms/.ls)^0.5}};
Offset = {0, 0, 0};
};
};
AnyFolder Shank = {
AnyVar LengthScale = ....Anthropometrics.SegmentDimensions.Right.ShankLength / ...StandardParameters.Right.Shank.Length;
AnyVar ms = ...MassScaling.Right.Shank.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = {{(.ms/.ls)^0.5, 0, 0},{0, .ls, 0},{0, 0, (.ms/.ls)^0.5}};
Offset = {0, 0, 0};
};
};
AnyFolder Thigh = {
AnyVar LengthScale = ....Anthropometrics.SegmentDimensions.Right.ThighLength / ...StandardParameters.Right.Thigh.Length;
AnyVar ms = ...MassScaling.Right.Thigh.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = {{(.ms/.ls)^0.5, 0, 0},{0, .ls, 0},{0, 0, (.ms/.ls)^0.5}};
Offset = {0, 0, 0};
};
};
// Patella uses the scaling function of the Thigh segment.
AnyFolder &Patella = Thigh;
}; // Right
AnyFolder Left ={
AnyFolder Clavicula = {
AnyFunTransform3DLin ScaleFunction = {
AnyMat33 ARel= { {-0.280836, -0.188095, -0.941144}, {0.004752, 0.980323, -0.197343}, { 0.959744, -0.059893, -0.274416}}';
ScaleMat = ARel*...Thorax.ScaleFunction.ScaleMat*(ARel');
Offset = {0,0,0}*ARel';
};
};
AnyFolder Scapula = {
AnyFunTransform3DLin ScaleFunction = {
AnyMat33 ARel ={{0.561294, 0.097357, -0.821870}, {-0.151325, 0.988389, 0.013736}, {0.813664, 0.116660, 0.569509}}';
ScaleMat = ARel*...Thorax.ScaleFunction.ScaleMat*(ARel');
Offset = {0,0,0}*ARel';
};
};
AnyFolder Humerus = {
AnyVar LengthScale = (....Anthropometrics.SegmentDimensions.Left.UpperArmLength / ...StandardParameters.Humerus.Length);
AnyVar ms = ...MassScaling.Left.Humerus.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = {{(.ms/.ls)^0.5, 0, 0},{0, .ls, 0},{0, 0, (.ms/.ls)^0.5}};
Offset = {0,0,0};
};
};
AnyFolder Ulna = {
AnyVar LengthScale = (....Anthropometrics.SegmentDimensions.Left.LowerArmLength / ...StandardParameters.Ulna.Length);
AnyVar ms = ...MassScaling.Left.Ulna.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = {{(.ms/.ls)^0.5, 0, 0},{0, .ls, 0},{0, 0, (.ms/.ls)^0.5}};
Offset = {0,0,0};
};
};
AnyFolder Radius = {
AnyFunTransform3DLin ScaleFunction = {
//This Arel is used for mapping the scaling of ulna into the radius coordinate system
//which is rotated, Arel has been found for a neutral position
AnyMat33 ARel = {{-0.145873, 0.989303, -0.000001}, {-0.989303, -0.145873, -0.000001}, {-0.000001, 0.000000, 1.000000}};
AnyMat33 ScaleXYZ = ..Ulna.ScaleFunction.ScaleMat;
ScaleMat = ARel'*ScaleXYZ*ARel;
Offset = {0,0,0}*ARel; };
};
AnyFolder Hand = {
AnyVar HandLength = ....Anthropometrics.SegmentDimensions.Left.HandLength;
AnyVar HandBreadth = ....Anthropometrics.SegmentDimensions.Left.HandBreadth;
AnyFunTransform3DLin ScaleFunction = {
AnyVar BreadthScale = .HandBreadth/....StandardParameters.Hand.HandBreadth;
AnyVar LengthScale = .HandLength/....StandardParameters.Hand.HandLength;
ScaleMat ={{LengthScale,0,0},{0,BreadthScale,0},{0,0,BreadthScale}};
Offset = {0,0,0};
};
};
// Talus uses the scaling function of the Foot segment
AnyFolder &Talus = Foot;
AnyFolder Foot = {
AnyVar LengthScale = ....Anthropometrics.SegmentDimensions.Left.FootLength / ...StandardParameters.Left.Foot.Length;
AnyVar ms = ...MassScaling.Left.Foot.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = {{.ls, 0, 0},{0, (.ms/.ls)^0.5, 0},{0, 0, (.ms/.ls)^0.5}};
Offset = {0, 0, 0};
};
};
AnyFolder Shank = {
AnyVar LengthScale = ....Anthropometrics.SegmentDimensions.Left.ShankLength / ...StandardParameters.Left.Shank.Length;
AnyVar ms = ...MassScaling.Left.Shank.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = {{(.ms/.ls)^0.5, 0, 0},{0, .ls, 0},{0, 0, (.ms/.ls)^0.5}};
Offset = {0, 0, 0};
};
};
AnyFolder Thigh = {
AnyVar LengthScale = ....Anthropometrics.SegmentDimensions.Left.ThighLength / ...StandardParameters.Left.Thigh.Length;
AnyVar ms = ...MassScaling.Left.Thigh.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = {{(.ms/.ls)^0.5, 0, 0},{0, .ls, 0},{0, 0, (.ms/.ls)^0.5}};
Offset = {0, 0, 0};
};
};
// Patella uses the scaling function of the Thigh segment.
AnyFolder &Patella = Thigh;
}; // Left
// Common law for the upper body
// *****************************
AnyFolder Pelvis = {
AnyVar LengthScale = ...Anthropometrics.SegmentDimensions.PelvisWidth / ..StandardParameters.Pelvis.Width;
AnyVar ms = ..MassScaling.Pelvis.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = diag({(.ms/.ls)^0.5, (.ms/.ls)^0.5, .ls});
AnyMat33 ScaleMatInverse = diag({1/((.ms/.ls)^0.5), 1/((.ms/.ls)^0.5), 1/.ls});
Offset = {0, 0, 0};
};
};
AnyFolder Thorax = {
AnyVar LengthScale = (...Anthropometrics.SegmentDimensions.TrunkHeight / ..StandardParameters.Trunk.Height);
AnyVar ms = ..MassScaling.Thorax.MassScale;
AnyVar ls = LengthScale;
AnyFloat OriginUnscaled ??= warn(
0, "To ensure continuity in the scaling law the thorax origin must be specified"
);
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = diag({(.ms/.ls)^0.5, .ls, (.ms/.ls)^0.5});
AnyMat33 ScaleMatInverse = diag({1/((.ms/.ls)^0.5), 1/.ls, 1/((.ms/.ls)^0.5)});
Offset = (
..Lumbar.ScaleFunction(.OriginUnscaled) - (.OriginUnscaled * ScaleMat')
) * ScaleMatInverse;
};
};
AnyFolder Head = {
AnyVar LengthScale = (...Anthropometrics.SegmentDimensions.HeadHeight / ..StandardParameters.Head.Height);
AnyVar ms = ..MassScaling.Head.MassScale;
AnyVar ls = LengthScale;
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = diag({(.ms/.ls)^0.5, .ls, (.ms/.ls)^0.5});
AnyMat33 ScaleMatInverse = diag({1/((.ms/.ls)^0.5), 1/.ls, 1/((.ms/.ls)^0.5)});
Offset = {0,0,0};
};
};
AnyFolder &Cervical = Thorax;
AnyFolder Lumbar = {
AnyVar LengthScale = (...Anthropometrics.SegmentDimensions.TrunkHeight / ..StandardParameters.Trunk.Height);
AnyVar ms = ..MassScaling.Lumbar.MassScale;
AnyVar ls = LengthScale;
AnyFloat OriginUnscaled ??= warn(
0, "To ensure continuity in the scaling law the lumbar origin must be specified"
);
AnyFunTransform3DLin ScaleFunction = {
ScaleMat = diag({(.ms/.ls)^0.5, .ls, (.ms/.ls)^0.5});
AnyMat33 ScaleMatInverse = diag({1/((.ms/.ls)^0.5), 1/.ls, 1/((.ms/.ls)^0.5)});
Offset = (
..Pelvis.ScaleFunction(.OriginUnscaled) - (.OriginUnscaled * ScaleMat')
) * ScaleMatInverse;
};
};
};
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