Why are values not rotated?

clear all; close all; clc

%conversion constant Celsius-Kelvin
c=273.16;
%load PianoTSacqua.mat non necessario->ho direttamente il grafico
T1= py.CoolProp.CoolProp.PropsSI('T','P',101325,'Q',0,'Water')
T_min=0+c;
T_max=600+c;
T = linspace(T_min,T_max,50000);
P = [0.01 0.1 1 5 30 100 250 500 1000]*10^5;

fh = figure;
for i=1:length (P)
    for j=1:length (T)
        S(i,j)= py.CoolProp.CoolProp.PropsSI('S','P',P(i),'T',T(j),'Water');
        if S(i,j)<0
           S(i,j)=NaN;
        else
            S(i,j)=S(i,j);
        end
    end
end


curve limite-saturazione    costruzione diagramma Entropico
T_crit = py.CoolProp.CoolProp.PropsSI('Tcrit','Water')
P_crit = py.CoolProp.CoolProp.PropsSI('Pcrit','Water')
for j=1:length (T)
    if T(j)>=T_min && T(j)<=T_crit;

     T_sat(j)=T(j);
     sliq(j)= py.CoolProp.CoolProp.PropsSI('S','T',T_sat(j),'Q',0,'Water');
     svap(j)= py.CoolProp.CoolProp.PropsSI('S','T',T_sat(j),'Q',1,'Water');

    else  
     T_sat(j)=NaN;
     sliq(j)= NaN;
     svap(j)= NaN;
    end
end



figure(1)
hold on
plot (S,T,'--', 'Color',[17 17 17]/255)
ylim([0 T_max])
xlabel('Entropia (J/(kgK)')
ylabel('Temperatura (K)')
 for i=1:length(P)
      text(S(i,end), T(end), sprintf('%1.1f MPa', P(i)/10^6, 'Rotation',90))
 end
plot(svap,T_sat, 'r-')
plot(sliq,T_sat, 'b-')

ylim([0 873])


save

Answer 1

[Les Beckham]

P = [1 2]*10^7;  % made up data to test with
S = [1 2;
     2 3];
T = [0 70;
     0 100];
plot(S(1,:),T(1,:), S(2,:), T(2,:))
grid on
ylim([0 130])
xlim([0 4])
for i=1:length(P)
    % text(S(i,end), T(end), sprintf('%1.1f MPa', P(i)/10^6, 'Rotation',90))
    %                                                      ^               ^
    %                    move the paren at the end to here ^---------------|                                                       paren to here
    text(S(i,end), T(i,end), sprintf('%1.1f MPa', P(i)/10^6), 'Rotation',90)
    %                ^ also index T
end

[locatelli vinicio]

Perfect thanks was the parenthesis to move

Grazie mille ciao

Vinicio

[Les Beckham]

You are quite welcome (prego)

[Les Beckham]

@locatelli vinicio

If your problem is solved, would you please "Accept this answer". Thanks.