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msm/ShoulderModel/Visualisation_Functions/VISUALISATION_view_joint_sinus_cones.m
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VISUALISATION_view_joint_sinus_cones.m
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function ConeHandle = VISUALISATION_view_joint_sinus_cones(JCHandle, JCDATA, BLDATA, ConeId)
% Function for visualising the joint sinus cones.
%--------------------------------------------------------------------------
% Syntax :
% ConeHandle = VISUALISATION_view_joint_sinus_cones(JCHandle, JCDATA, BLDATA, ConeId)
%--------------------------------------------------------------------------
%
% EPFL - LA - LBO SHOULDER MODEL
% Created by : David Ingram (LA - EPFL)
%
% File Description :
% This function either creates a visualisation of the joint sinus cones or
% updates an already existing one.
%
% JCHandle contains the handle
% JCDATA joint sinus cone data structure
% ConeId is the bone identification number
% BLDATA bony landmark data structure
%--------------------------------------------------------------------------
% Initialise the output
ConeHandle = JCHandle;
% Creat an angle
theta = linspace(0, 2*pi, 21);
% Initialise the list of points
Cx = []; R = [];
Cy = []; Q = [];
Cz = [];
%--------------------------------------------------------------------------
% The Plot handle is empty: Create one
%--------------------------------------------------------------------------
if isempty(JCHandle)
% Run the Code for each cone
switch ConeId
case 1 % SC JOINT SINUS CONE
% Construct the Cone (X-axis is the cone axis)
Cx = [zeros(1,21); JCDATA.SCCone.Dimensions(3)*ones(1,21)];
Cy = [zeros(1,21); JCDATA.SCCone.Dimensions(1)*cos(theta)];
Cz = [zeros(1,21); JCDATA.SCCone.Dimensions(2)*sin(theta)];
% Build the Rotation Matrix
Rsc = Build_Rotation_Matrix(JCDATA.SCCone.ConeAngle(1), JCDATA.SCCone.ConeAngle(2), JCDATA.SCCone.ConeAngle(3));
R = BLDATA.Current_Matrices_L2A.Rc*Rsc;
Q = BLDATA.Current_Points.SC;
case 2 % AC JOINT SINUS CONE
% Construct the Cone (negative Z-axis is the cone axis)
Cx = [zeros(1,21); JCDATA.ACCone.Dimensions(1)*cos(theta)];
Cy = [zeros(1,21); JCDATA.ACCone.Dimensions(2)*sin(theta)];
Cz = [zeros(1,21); -JCDATA.ACCone.Dimensions(3)*ones(1,21)];
% Build the Rotation Matrix
Rac = Build_Rotation_Matrix(JCDATA.ACCone.ConeAngle(1), JCDATA.ACCone.ConeAngle(2), JCDATA.ACCone.ConeAngle(3));
R = BLDATA.Current_Matrices_L2A.Rs*Rac;
Q = BLDATA.Current_Points.AC;
case 3 % GH JOINT SINUS CONE
% Construct the Cone (negative Z-axis is the cone axis)
Cx = [zeros(1,21); JCDATA.GHCone.Dimensions(1)*cos(theta)];
Cy = [zeros(1,21); JCDATA.GHCone.Dimensions(2)*sin(theta)];
Cz = [zeros(1,21); -JCDATA.GHCone.Dimensions(3)*ones(1,21)];
% Build the Rotation Matrix
Rgh = Build_Rotation_Matrix(JCDATA.GHCone.ConeAngle(1), JCDATA.GHCone.ConeAngle(2), JCDATA.GHCone.ConeAngle(3));
R = BLDATA.Current_Matrices_L2A.Rh*Rgh;
Q = BLDATA.Current_Points.GH;
otherwise
end
% Rotate & Place the Cone
for i = 1:2
for j = 1:size(Cx,2)
P = R*[Cx(i,j); Cy(i,j); Cz(i,j)] + Q;
Cx(i,j) = P(1);
Cy(i,j) = P(2);
Cz(i,j) = P(3);
end
end
% Draw The Cone
ConeHandle = surf(Cx, Cy, Cz, 'facecolor', 'green', 'facealpha', 0.5);
%--------------------------------------------------------------------------
% The Plot handle is empty: Update the current one
%--------------------------------------------------------------------------
else
switch ConeId
case 1 % SC JOINT SINUS CONE
% Construct the Cone
Cx = [zeros(1,21); JCDATA.SCCone.Dimensions(3)*ones(1,21)];
Cy = [zeros(1,21); JCDATA.SCCone.Dimensions(1)*cos(theta)];
Cz = [zeros(1,21); JCDATA.SCCone.Dimensions(2)*sin(theta)];
% Build the Rotation Matrix
Rsc = Build_Rotation_Matrix(JCDATA.SCCone.ConeAngle(1), JCDATA.SCCone.ConeAngle(2), JCDATA.SCCone.ConeAngle(3));
R = BLDATA.Current_Matrices_L2A.Rc*Rsc;
Q = BLDATA.Current_Points.SC;
case 2 % AC JOINT SINUS CONE
% Construct the Cone
Cx = [zeros(1,21); JCDATA.ACCone.Dimensions(1)*cos(theta)];
Cy = [zeros(1,21); JCDATA.ACCone.Dimensions(2)*sin(theta)];
Cz = [zeros(1,21); -JCDATA.ACCone.Dimensions(3)*ones(1,21)];
% Build the Rotation Matrix
Rac = Build_Rotation_Matrix(JCDATA.ACCone.ConeAngle(1), JCDATA.ACCone.ConeAngle(2), JCDATA.ACCone.ConeAngle(3));
R = BLDATA.Current_Matrices_L2A.Rs*Rac;
Q = BLDATA.Current_Points.AC;
case 3 % GH JOINT SINUS CONE
% Construct the Cone
Cx = [zeros(1,21); JCDATA.GHCone.Dimensions(1)*cos(theta)];
Cy = [zeros(1,21); JCDATA.GHCone.Dimensions(2)*sin(theta)];
Cz = [zeros(1,21); -JCDATA.GHCone.Dimensions(3)*ones(1,21)];
% Build the Rotation Matrix
Rgh = Build_Rotation_Matrix(JCDATA.GHCone.ConeAngle(1), JCDATA.GHCone.ConeAngle(2), JCDATA.GHCone.ConeAngle(3));
R = BLDATA.Current_Matrices_L2A.Rh*Rgh;
Q = BLDATA.Current_Points.GH;
otherwise
end
% Rotate & Place the Cone
for i = 1:2
for j = 1:size(Cx,2)
P = R*[Cx(i,j); Cy(i,j); Cz(i,j)] + Q;
Cx(i,j) = P(1);
Cy(i,j) = P(2);
Cz(i,j) = P(3);
end
end
% Draw The Cone
set(ConeHandle, 'xdata', Cx, 'ydata', Cy, 'zdata', Cz, 'facecolor', 'green', 'facealpha', 0.5);
end
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
% END OF PRIMARY SCRIPT
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
return;
% Small sub-function for creating the rotation matrices
function R = Build_Rotation_Matrix(Ax, Ay, Az)
% This function simply builds a rotation matrix given three angles.
Rx = [1, 0, 0;
0, cos(Ax), -sin(Ax);
0, sin(Ax), cos(Ax)];
Ry = [cos(Ay), 0, -sin(Ay);
0, 1, 0;
sin(Ay), 0, cos(Ay)];
Rz = [cos(Az), -sin(Az), 0;
sin(Az), cos(Az), 0;
0, 0, 1];
% Define the Output. The sequence is Z - Y - X
R = Rx*Ry'*Rz;
return
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