How can I generate the data for an eight '8' draw?
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jadaslg
el 13 de Jun. de 2013
Respondida: Carmelo Fabrizio Blanco
el 3 de Nov. de 2020
Hello, I would like to know how to generate the data for the shape of an eight. I've been trying with some hysteresis functions but nothing gets me close really.
Thank you very much
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Respuesta aceptada
David Sanchez
el 13 de Jun. de 2013
You can try with this:
t=0:.1:2*pi;
x = -sin(t);
y = sin(t);
plot(t,x,'*',t,y,'+')
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Más respuestas (2)
Paulo Barbosa
el 15 de Sept. de 2016
div = pi/50; % Resolution
sz = 100; % Number of Points in 2 Pi
th = zeros(1,sz);
th(1) = pi; % Starting at (0,0) and going up.
for i = 2:sz
th(i) = th(i-1)-div;
end
circ_x = fat*cos(th);
circ_y = fat*sin(th);
x1 = circ_x(1:26);
y1 = circ_y(1:26);
% -------------------------------------------
th(1) = 0;
for i = 2:sz*fat
th(i) = th(i-1)+div*fat;
end
cos_x = th;
cos_y = fat*cos(th/fat);
x2 = cos_x(1:51);
y2 = cos_y(1:51);
% -------------------------------------------
th(1) = -pi/2;
for i = 2:sz
th(i) = th(i-1)+div;
end
circ_x = fat*cos(th);
circ_y = fat*sin(th);
x3 = circ_x(1:51)+16;
y3 = circ_y(1:51);
% -------------------------------------------
x4 = x2';
x4 = flipud(x4);
x4 = x4';
y4 = y2';
y4 = flipud(y4);
y4 = -y4';
% -------------------------------------------
th(1) = -pi/2;
for i = 2:sz
th(i) = th(i-1)-div;
end
circ_x = fat*cos(th);
circ_y = fat*sin(th);
x5 = circ_x(1:26);
y5 = circ_y(1:26);
% -------------------------------------------
x = [x1 x2 x3 x4 x5];
y = [y1 y2 y3 y4 y5];
% A plot so you can see each section
figure
hold on
plot(x1,y1,'.r');
plot(x2,y2,'.b');
plot(x3,y3,'.k');
plot(x4,y4,'.g');
plot(x5,y5,'.y');
1 comentario
Carmelo Fabrizio Blanco
el 3 de Nov. de 2020
t = [0:0.001:10];
f = 10;
x = sin(2*pi*t*f);
y = sin(2*pi*t*2*f);
figure();
plot(x,y);
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