chore: define pitch, tgSpeed and truePitch as dependent parameters

src/classes/@ElemPerf/ElemPerf.m

@@ -61,10 +61,7 @@ classdef ElemPerf < handle
         upstreamVelAx (1, :) double % Upstream axial velocity above rotor disk, [m/s]
         upstreamVelTg (1, :) double % Upstream tangential velocity above rotor disk, [m/s]
 
-        tgSpeed   (1, :) double % Tangential speed, [m/s]
-        pitch     (1, :) double % Pitch (twist + collective), [rad]
         alpha0    (1, :) double % Zero lift angle of attack, [rad]
-        truePitch (1, :) double % Pitch (twist + collective - alpha_0), [rad]
 
         cl  (1, :) double % Lift coefficient, [-]
         cd  (1, :) double % Drag coefficient, [-]
@@ -85,6 +82,10 @@ classdef ElemPerf < handle
     % Make alpha a dependent property because Matlab does not like when we set multiple properties
     % from a single set method otherwise.
     properties (Dependent)
+        tgSpeed   (1, :) double % Tangential speed, [m/s]
+        pitch     (1, :) double % Pitch (twist + collective), [rad]
+        truePitch (1, :) double % Pitch (twist + collective - alpha_0), [rad]
+                
         alpha    (1, :) double % Angle of attack, [rad]
         reynolds (1, :) double % Reynolds number, [-]
         massflow (1, :) double % Mass flow rate through the element, [kg/s]
@@ -120,18 +121,12 @@ classdef ElemPerf < handle
                 self.Rot = Rot;
                 self.Op = Op;
 
-                % Blade pitch
-                self.pitch = Rot.Bl.twist + Op.coll;
-
                 % Upstream axial velocity
                 self.upstreamVelAx = ones(size(self.pitch)) * Op.speed;
 
                 % Upstream tangential velocity
                 self.upstreamVelTg = zeros(size(self.pitch));
 
-                % In-plane velocities
-                self.tgSpeed = Op.omega .* Rot.Bl.y;
-
                 % Get alpha_0 from reynolds
                 self.alpha0 = zeros(size(self.pitch));
                 for i = 1:length(Rot.Af)
@@ -145,19 +140,28 @@ classdef ElemPerf < handle
                     end
                 end
 
-                % Calculate truePitch
-                if strcmp(self.Rot.pitchRef, 'zerolift')
-                    self.truePitch = self.pitch - self.alpha0;
-                else
-                    self.truePitch = self.pitch;
-                end
-
             end
         end
 
         % ---------------------------------------------
         % Get methods for dependent properties
-
+        
+        function pitch = get.pitch(self)
+            pitch = self.Rot.Bl.twist + self.Op.coll;
+        end
+        
+        function tgSpeed = get.tgSpeed(self)
+            tgSpeed = self.Op.omega .* self.Rot.Bl.y;
+        end
+        
+        function truePitch = get.truePitch(self)
+            if strcmp(self.Rot.pitchRef, 'zerolift')
+                truePitch = self.pitch - self.alpha0;
+            else
+                truePitch = self.pitch;
+            end
+        end
+        
         function alpha = get.alpha(self)
             alpha = self.alpha_;
         end