Updating surf plot problem

Hello, I try to simulate a robot motion by use line ('o') as a Robot and update it's motion by using set. But I have a problem to update the new position and angle of the robot's view angle. I use surf as a robot view angle because I want to show color gradients. Now I have to delete the surf and plot it again every time. Is there any other ways to update surf plot?

Thank you

This is my code:

classdef Robot6<handle
    properties
          velocity = 0;                         
          position = [0 0];
          angle=0;

    end
    methods
        function Runn(obj)
             set( gcf,'WindowKeyPressFcn',  @keyboard_down,'CloseRequestFcn', @close_window, 'WindowKeyReleaseFcn', @keyboard_up)
             set( gca,'color', 'white','xlim', [-100, 100],'ylim', [-100, 100])
             robot=line(obj.position(1), obj.position(2),'marker','o');
             hold(gca,'on')
             
             
              program_on = 1;
     
              while program_on         
                userdataStore=[obj.velocity obj.angle obj.position]
                %pause(0.001);
                
                vel = [userdataStore(1)*cosd(userdataStore(2)),userdataStore(1)*sind(userdataStore(2))];
                pos = userdataStore(3:4);
                new_position = pos + vel;
                if (abs(new_position(1)) > 100 || abs(new_position(2)) > 100)
                    new_position = pos;
                end
                obj.position = new_position;
                
                set(robot, 'XData', new_position(1), 'YData', new_position(2));
                %set(orient,'XData', new_position(1)+2*cos(userdataStore(2)), 'YData', new_position(2)+2*sin(userdataStore(2)));   
                %delete(orient)
                x=[new_position(1) new_position(1)+10*cosd(userdataStore(2))+(10*tand(35)*cosd(90-userdataStore(2))) new_position(1)+10*cosd(userdataStore(2))-(10*tand(35)*cosd(90-userdataStore(2)))];
                y=[new_position(2) new_position(2)+10*sind(userdataStore(2))-10*tand(35)*sind(90-userdataStore(2)) new_position(2)+10*sind(userdataStore(2))+10*tand(35)*sind(90-userdataStore(2))];
                z=[100 0 0];
                xv = linspace(min(x), max(x), 1000);
                yv = linspace(min(y), max(y), 1000);
                [X,Y] = meshgrid(xv, yv);
                Z = griddata(x,y,z,X,Y);
                figure(1)
                orient=surf(X, Y, Z);
                grid off
                %set(gca, 'ZLim',[0 500])
                shading interp
                colormap(jet(80))
                view(2)
                pause(1)
                delete(orient)
                pause(0.00000000001)
        
              end
             delete(gcf);
              
             function close_window(~,~)
                program_on = 0;
             end
             
             function keyboard_down(~, event)
                switch event.Key
                    case 'downarrow'
                        obj.velocity = -5;
                    case 'uparrow'
                        obj.velocity = 5;    
                    case 'leftarrow'
                        obj.angle = obj.angle + 6;
                    case 'rightarrow'
                        obj.angle = obj.angle - 6;
                    otherwise
                        disp('unknown key');
                end
             end
             
            function keyboard_up(~,~)
                obj.velocity = 0;
            end
            
        end
        
    end
end

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