Why is my plot not showing?
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a1 = 0; alpha1 = 0; d1 = 0;
a2 = 475; alpha2 = pi/2; d2 = 150;
a3 = 600; alpha3 = 0; d3 = 0;
%DH parameter
t1_min = -pi/2; t1_max = pi/2;
t2_min = -pi/3; t2_max = pi/3;
t3_min = -pi/3; t3_max = pi/3;
% joint limits
% Monte Carlo method
% sampling size
N = 20000;
t1 = t1_min + (t1_max-t1_min)*rand(N,1);
t2 = t2_min + (t2_max-t2_min)*rand(N,1);
t3 = t3_min + (t3_max-t3_min)*rand(N,1);
function [ T ] = TranMat( a,b,c,d )
T = [ cos(d) -sin(d)*cos(b)
sin(d)*sin(b) a*cos(d); sin(d)
cos(d)*cos(b) -cos(d)*sin(b) a*sin(d);
0 sin(b) cos(b) c;
0 0 0 1
];
for i = 1:N
A1 = TransMat(a1,alpha1,d1,t1(i));
A2 = TransMat(a2,alpha2,d2,t2(i));
A3 = TransMat(a3,alpha3,d3,t3(i));
T = A1*A2*A3;
X=T(1,4);
Y=T(2,4);
Z=T(3,4);
plot3(X,Y,Z,'.')
hold on;
end
end
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Réponse acceptée
Geoff Hayes
le 22 Juin 2020
Tony - your code is not calling the TranMat function which has the code to plot the data. How should it be called? What do the a, b, c, and d input parameters correspond to in the script code?
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