generate a surface plot

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Pradeepta Sahu
Pradeepta Sahu 2017-10-23
编辑： Pradeepta Sahu 2017-11-3
*Check this below code to generate a surface plot. It's showing an error.*
t_res = 0.2;
c_angle = 360/30;
iact = 0.1;
V = 12;
p = 1;
%%fprintf('Slno\t\t Time\t\t Angle(degree)\t\t Current\t\t delta_i\t\t Torque\t\t Fluxlinkage\t\t L_obt\n');
for p=1:5,
Time = p*t_res;
Angle = Time*c_angle/2;
if (p == 1)
delt_i = 0;
else
delt_i = 0.5* t_res* V /L_obt;
end
iact = iact+delt_i;
[~, ~, raw] = xlsread('F:\Pradeep\Matlab\data1.xlsx','Sheet3','A2:D11');
data = reshape([raw{:}],size(raw));
Current = data(:,1);
Angle1 = data(:,2);
Torque = data(:,3);
Fluxlinkage = data(:,4);
F = scatteredInterpolant(Current,Angle1,Fluxlinkage);
Fluxlinkage = F(iact,Angle);
L_obt = Fluxlinkage/iact;
F = scatteredInterpolant(Current,Angle1,Torque);
Torque = F(iact,Angle);
Table = [p' Time' Angle' iact' delt_i' abs(Torque)' Fluxlinkage' L_obt'];
fprintf('%d\t\t %f\t\t %f\t\t %f\t\t %f\t\t %f\t\t %f\t\t %f\n', Table');
end
p=p+1;
plot3(Time,iact,Torque);
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KSSV
KSSV 2017-10-25
There are ways to attach....can be zipped and attached.

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回答（1 个）

KSSV
KSSV 2017-10-25
data = [0.1 1 2.3 0.5
3 2 3.4 0.86
4 3 2.7 0.8739
5 4 4.5 0.4382
6 5 3.4 0.8234
7 6 5.5 0.53823
8 7 4.3 0.7482
9 8 4 0.3439
10 9 3.5 0.2593
11 10 2.4 0.2432];
c = data(:,1) ;
theta = data(:,2) ;
tor = data(:,3) ;
flux = data(:,4) ;
[C,T] = meshgrid(c,theta) ;
F = scatteredInterpolant(c,theta,tor) ;
Tor = F(C,T) ;
figure
surf(C,T,Tor) ;
title('surface plot of Torque')
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KSSV
KSSV 2017-11-3
Copy your whole code here....
Pradeepta Sahu
Pradeepta Sahu 2017-11-3
编辑：Pradeepta Sahu 2017-11-3
t_res = 0.2;
c_angle = 360/30;
iact = 0.1;
V = 12;
p = 1;
%%fprintf('Slno\t\t Time\t\t Angle(degree)\t\t Current\t\t delta_i\t\t Torque\t\t Fluxlinkage\t\t L_obt\n');
x = zeros(5,1) ;
y = zeros(5,1) ;
z = zeros(5,1) ;
[~, ~, raw] = xlsread('data1.xlsx','Sheet3','A2:D11');
data = reshape([raw{:}],size(raw));
Current = data(:,1);
Angle1 = data(:,2);
Torque = data(:,3);
Fluxlinkage = data(:,4);
for p=1:5,
Time = p*t_res;
Angle = Time*c_angle/2;
if (p == 1)
delt_i = 0;
else
delt_i = 0.5* t_res* V /L_obt;
end
iact = iact+delt_i;
F = scatteredInterpolant(Current,Angle1,Fluxlinkage);
Fluxlinkage = F(iact,Angle);
L_obt = Fluxlinkage/iact;
F = scatteredInterpolant(Current,Angle1,Torque);
Torque = F(iact,Angle);
Table = [p' Time' Angle' iact' delt_i' abs(Torque)' Fluxlinkage' L_obt'];
fprintf('%d\t\t %f\t\t %f\t\t %f\t\t %f\t\t %f\t\t %f\t\t %f\n', Table');
x(p) = Time ;
y(p) = iact ;
z(p) = Torque ;
[C,T,Tor] = meshgrid(iact,Angle, Torque) ;
F = scatteredInterpolant(Current,Angle1,Torque) ;
Tor = F(C,T) ;
end
figure
surf(C,T,Tor) ;

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