How to plot a trapezoidal pulse in Matlab?

Question

ANWESHA 2014-7-16

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https://ww2.mathworks.cn/matlabcentral/answers/142075-how-to-plot-a-trapezoidal-pulse-in-matlab

评论： Nur Izzati Aliah 2022-6-29

I want to plot a trapezoidal pulse that has user defined rise time and fall time i.e. slope of the edges of the trapezoid can be set by me.

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ANWESHA 2014-7-16

Can you please explain me how it is working, so that I can modify it according to my need. Actually i have to plot it with respect to time and continuous pulse so that it is the reverse in the next period of time like in the image given below

Nur Izzati Aliah 2022-6-29

Name = 'Pizza_Hut_Service';

Type = 'Mamdani';

Version = 2.0;

NumInputs = 2;

NumOutputs = 0;

NumRules = 0;

AndMethod = 'min';

OrMethod = 'max';

ImpMethod = 'min';

AggMethod = 'max';

DefuzzMethod = 'centroid';

Name = 'Arrival_Rate';

Range = [0 1];

x = [1 3 4 6];

NumMFs = 1;

MF1 = 'MF':'trapmf';[1 3 4 6]

MF1 = trapmf(x,[1 3 4 6]);

Can someone help with this to get the graph in trapezoidal graph? This is very urgent I really need help from all of you

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Answer 1

Jasmine 2014-7-16

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https://ww2.mathworks.cn/matlabcentral/answers/142075-how-to-plot-a-trapezoidal-pulse-in-matlab#answer_145330

function [] = trapezoidal_pulse (rise_time, fall_time, height, length)

pulse = zeros (2, 4);

pulse(1,2)=height;

pulse(2,2)=rise_time;

pulse(1,3)=height;

pulse(2,3)=pulse(2,2)+length;

pulse(2,4)=pulse(2,3)+fall_time;

plot(pulse(2,:),pulse(1,:))

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Jasmine 2014-7-17

在 MATLAB Online 中打开

I have managed to make it work for up to 2 cycles...

function [] = trapezoidal_pulse (initial_height, on_height, delay_time, rise_time, fall_time, time_on, period, cycles)
pulse(:,1) = [initial_height,0];
pulse(:,2) = [initial_height,delay_time];
pulse(:,3) = [on_height,pulse(2,2)+rise_time];
pulse(:,4) = [on_height,pulse(2,3)+time_on];
pulse(:,5) = [initial_height,pulse(2,4)+fall_time];
pulse(:,6) = [initial_height,period];
for i=2:cycles
    pulse(:,3+(2*i)) = [initial_height,period*(i-1)];
    pulse(:,4+(2*i)) = [initial_height,pulse(2,3+(2*i))+delay_time];
    pulse(:,5+(2*i)) = [on_height,pulse(2,4+(2*i))+rise_time];
    pulse(:,6+(2*i)) = [on_height,pulse(2,5+(2*i))+time_on];
    pulse(:,7+(2*i)) = [initial_height,pulse(2,6+(2*i))+fall_time];
    pulse(:,8+(2*i)) = [initial_height,period*i];
end
plot(pulse(2,:),pulse(1,:))

ANWESHA 2014-7-18

thank u so much

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Answer 2

ANWESHA 2014-7-17

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Can please anyone help me to draw the pulse in matlab as given in the figure above?

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Answer 3

vartan 2014-10-23

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编辑：vartan 2014-10-23

在 MATLAB Online 中打开

This code should work for more than 2 cycles..

   function [] = trap (initial_height, on_height, delay_time, rise_time, fall_time, time_on, period, cycles)
pulse(:,1) = [initial_height,0];
pulse(:,2) = [initial_height,delay_time];
pulse(:,3) = [on_height,pulse(2,2)+rise_time];
pulse(:,4) = [on_height,pulse(2,3)+time_on];
pulse(:,5) = [initial_height,pulse(2,4)+fall_time];
pulse(:,6) = [initial_height,period];
for i=2:cycles
    pulse(:,1+(6*(i-1))) = [initial_height,period*(i-1)];
    pulse(:,2+(6*(i-1))) = [initial_height,pulse(2,1+(6*(i-1)))+delay_time];
    pulse(:,3+(6*(i-1))) = [on_height,pulse(2,2+(6*(i-1)))+rise_time];
    pulse(:,4+(6*(i-1))) = [on_height,pulse(2,3+6*(i-1))+time_on];
    pulse(:,5+(6*(i-1))) = [initial_height,pulse(2,4+6*(i-1))+fall_time];
    pulse(:,6+(6*(i-1))) = [initial_height,period*i];
end
plot(pulse(2,:),pulse(1,:))

example:

trap (0, 1, 0, 1e-1, 1e-1,1 , 2, 5)

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Answer 4

Jhon Lasso 2017-11-2

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buen dia necesito hacer un trapezoide en matlab en 2d como lo hago?

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Answer 5

Seungmin Lee 2018-7-5

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编辑：Seungmin Lee 2018-7-5

在 MATLAB Online 中打开

i try to above same code...but the function code is error.

how to solve the problem...

function []= trap (0, 1, 0, 1e-1, 1e-1,1 , 2, 5,4)
pulse(:,1) = [initial_height,0];
pulse(:,2) = [initial_height,delay_time];
pulse(:,3) = [on_height,pulse(2,2)+rise_time];
pulse(:,4) = [on_height,pulse(2,3)+time_on];
pulse(:,5) = [initial_height,pulse(2,4)+fall_time];
pulse(:,6) = [initial_height,period];
for i=2:cycles
    pulse(:,1+(6*(i-1))) = [initial_height,period*(i-1)];
    pulse(:,2+(6*(i-1))) = [initial_height,pulse(2,1+(6*(i-1)))+delay_time];
    pulse(:,3+(6*(i-1))) = [on_height,pulse(2,2+(6*(i-1)))+rise_time];
    pulse(:,4+(6*(i-1))) = [on_height,pulse(2,3+6*(i-1))+time_on];
    pulse(:,5+(6*(i-1))) = [initial_height,pulse(2,4+6*(i-1))+fall_time];
    pulse(:,6+(6*(i-1))) = [initial_height,period*i];
end
plot(pulse(2,:),pulse(1,:))