How can you update plot data from properties in an object?

I am new to OOP, and would like to plot changing data in an object as various methods are called that change the properties in the object. I have tried using linkdata - however it appears that this doesn't work across methods.

Is there a way to update the plot without re-plotting the figure?

sections of my code:

classdef VarStiffTDCR
    
    properties (Constant)
        F0 = [0 0 1;
            0 1 0;
            0 0 1];
        P0 = [0 0 0]';
        
    end

    properties
 %*** some properties defined here ***
    end

    methods
        function obj = VarStiffTDCR(L,N_seg,N_pts,K_soft,K_hard,offsets)

 %*** some properties initialized here ***

            % Here I am plotting something based on the properties
            % initialized above.
            obj.figHan = figure('Name','CR Plot');
            linkdata on
            obj = Fkin(obj,0); % Run forward Kinematics to initialize shape.
            for j = 1:obj.N_seg
                indices = ((j-1)*obj.N_pts/obj.N_seg+1):(j*obj.N_pts/obj.N_seg);
                plot3(obj.P(1,indices),obj.P(2,indices),obj.P(3,indices),Color=[(.9*obj.soft(j)) .1 (.9-.9*obj.soft(j))])
            end
            axis equal
            grid on
            xlabel('X [mm]');
            ylabel('Y [mm]');
            zlabel('Z [mm]');
        end
        
 %*** some other methods here ***
 
         function obj = Fkin(obj,plotOn)
            
            % This code updates P which contains the data in the plot
            ds = obj.L/(obj.N_pts-1);
            for j = 1:obj.N_seg
                for i = ((j-1)*obj.N_pts/obj.N_seg+1):j*obj.N_pts/obj.N_seg
                    if i == 1
                        obj.BFs(:,:,i) = [0 0 1;
                                      0 1 0;
                                      1 0 0];
                        obj.P(:,i) = [0 0 0]';
                    else
                        obj.BFs(:,:,i) = obj.BFs(:,:,i-1) + ds.*[0 obj.kx(1) obj.ky(1); -obj.kx(1) 0 0; -obj.ky(1) 0 0]*obj.BFs(:,:,i-1);
                        obj.P(:,i) = obj.P(:,i-1) + ds*obj.BFs(1,:,i-1)';
                    end
                end
            end
            if plotOn
            % Here I would like the plot to update with the new values in
            % P, without having to replot.
                figure(obj.figHan)
                refreshdata
                drawnow
            end
        end

Answer 1

[Matt J]

Consider animatedline