Homec4science
Diffusion MMS_shoulder (master) Browse

msm_ul/ShoulderModel/TOOLBOX_Muscle_Geometry/MUSCLE_TOOL_geometry_functions.m
361f5b9174f4master

Last Change
Raw File

MUSCLE_TOOL_geometry_functions.m
View Options

function Output = MUSCLE_TOOL_geometry_functions(Task, BLDATA, MEDATA, PointsList_in, RefList)
%{
UICONTROL Callback computes geometric operations for the muscle wrapping
--------------------------------------------------------------------------
Syntax :
Output = MUSCLE_TOOL_geometry_functions(Task, BLDATA, MEDATA, PointsList_in, RefList)
--------------------------------------------------------------------------
File Description :
This function computes all the geometry related operations for the muscle
wrapping.
List of Tasks :
Task 1: Rotate Points To Absolute Frame
Task 2: Rotate Object Centre To Absolute Frame
Task 3: Construct Object Rotation Matrix
--------------------------------------------------------------------------
%}
% Initialise the Output
Output = [];
%--------------------------------------------------------------------------
% TASK 1 : Transform points using the original rotation matrices
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
if isequal(Task, 'Rotate Points To Absolute Frame')
% Get the current landmark data
SC = BLDATA.Current_Points.SC;
AC = BLDATA.Current_Points.AC;
AA = BLDATA.Current_Points.AA;
GH = BLDATA.Current_Points.GH;
HU = BLDATA.Current_Points.HU;
CP = BLDATA.Current_Points.CP;
% Get the current rotation matrices
Rc = BLDATA.Current_Matrices_L2A.Rc;
Rs = BLDATA.Current_Matrices_L2A.Rs;
Rh = BLDATA.Current_Matrices_L2A.Rh;
Ru = BLDATA.Current_Matrices_L2A.Ru;
Rr = BLDATA.Current_Matrices_L2A.Rr;
Output = PointsList_in;
% Run through the list of points and transform
for i = 1:size(Output,2)
if RefList(1,i) == 0 % THORAX
Output(:,i) = PointsList_in(:,i);
elseif RefList(1,i) == 1 % CLAVICULA
Output(:,i) = Rc*PointsList_in(:,i) + SC;
elseif RefList(1,i) == 2 % SCAPULA
Output(:,i) = Rs*PointsList_in(:,i) + AA;
elseif RefList(1,i) == 3 % HUMERUS
Output(:,i) = Rh*PointsList_in(:,i) + GH;
elseif RefList(1,i) == 4 % ULNA
Output(:,i) = Ru*PointsList_in(:,i) + HU;
elseif RefList(1,i) == 5 % RADIUS
Output(:,i) = Rr*PointsList_in(:,i) + CP;
else
end
end
%--------------------------------------------------------------------------
% TASK 2 : Rotate the object centre point into absolute frame
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
elseif isequal(Task, 'Rotate Object Centre To Absolute Frame')
% Get the current landmark data
SC = BLDATA.Current_Points.SC;
AC = BLDATA.Current_Points.AC;
AA = BLDATA.Current_Points.AA;
GH = BLDATA.Current_Points.GH;
HU = BLDATA.Current_Points.HU;
CP = BLDATA.Current_Points.CP;
% Get the current rotation matrices
Rc = BLDATA.Current_Matrices_L2A.Rc;
Rs = BLDATA.Current_Matrices_L2A.Rs;
Rh = BLDATA.Current_Matrices_L2A.Rh;
Ru = BLDATA.Current_Matrices_L2A.Ru;
Rr = BLDATA.Current_Matrices_L2A.Rr;
% Rotate the points
Output = zeros(3,size(MEDATA.ObjectRef,2));
for idx = 1:size(MEDATA.ObjectRef,2)
if MEDATA.ObjectRef(1,idx) == 0
Output(:,idx) = MEDATA.ObjectCentre(:,idx);
elseif MEDATA.ObjectRef(1,idx) == 1
Output(:,idx) = Rc*MEDATA.ObjectCentre(:,idx) + SC;
elseif MEDATA.ObjectRef(1,idx) == 2
Output(:,idx) = Rs*MEDATA.ObjectCentre(:,idx) + AA;
elseif MEDATA.ObjectRef(1,idx) == 3
Output(:,idx) = Rh*MEDATA.ObjectCentre(:,idx) + GH;
elseif MEDATA.ObjectRef(1,idx) == 4
Output(:,idx) = Ru*MEDATA.ObjectCentre(:,idx) + HU;
elseif MEDATA.ObjectRef(1,idx) == 5
Output(:,idx) = Rr*MEDATA.ObjectCentre(:,idx) + CP;
end
end
%--------------------------------------------------------------------------
% TASK 3 : Build Object Rotation Matrix
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
elseif isequal(Task, 'Construct Object Rotation Matrix')
% Get the original rotation matrices
Rc = BLDATA.Current_Matrices_L2A.Rc;
Rs = BLDATA.Current_Matrices_L2A.Rs;
Rh = BLDATA.Current_Matrices_L2A.Rh;
Ru = BLDATA.Current_Matrices_L2A.Ru;
Rr = BLDATA.Current_Matrices_L2A.Rr;
for idx = 1:size(MEDATA.ObjectRef,2)
% Normalise the Z-axis
Zaxis = MEDATA.ObjectZaxis(:,idx)/norm(MEDATA.ObjectZaxis(:,idx));
% Zaxis & [0; 1; 0] colinear?
Xaxis = [];
if Zaxis(1,1) == 0 && Zaxis(3,1) == 0
Xaxis = cross([1; 1; 0], Zaxis); Xaxis = Xaxis/norm(Xaxis);
else
Xaxis = cross([0; 1; 0], Zaxis); Xaxis = Xaxis/norm(Xaxis);
end
Yaxis = cross(Zaxis, Xaxis); Yaxis = Yaxis/norm(Yaxis);
% Transformation Matrix Object to Absolute
M = [Xaxis, Yaxis, Zaxis];
% Add the local to absolute transformation
if MEDATA.ObjectRef(1,idx) == 0
Output = [Output, M];
elseif MEDATA.ObjectRef(1,idx) == 1
Output = [Output, Rc*M];
elseif MEDATA.ObjectRef(1,idx) == 2
Output = [Output, Rs*M];
elseif MEDATA.ObjectRef(1,idx) == 3
Output = [Output, Rh*M];
elseif MEDATA.ObjectRef(1,idx) == 4
Output = [Output, Ru*M];
elseif MEDATA.ObjectRef(1,idx) == 5
Output = [Output, Rr*M];
end
end
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
% THE CONDITIONAL SCRIPT ENDS HERE
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
else
end
return;
c4science · Help