I have a script but i didn't understand the flow of the program could anybody please give me an explanation for this script?

1 次查看（过去 30 天）
Parth Panchal
Parth Panchal 2017-11-18
回答： Walter Roberson 2017-11-18
%%Plotting the terrain profile
x1 = -35:0.001:3;
x2 = 3.001:0.001:25;
x3 = 25.001:0.001:100;
x4 = 100.001:0.001:160;
% Values of slope for all the slope equations
m1 = 0;
m2 = 0;
m3 = 0.133333;
m4 = -0.02;
% Values of constant for all the slope equations
c1 =15;
c2 =0;
c3 =0;
c4 =10;
% Slope equations
y1 = m1.*(x1)+c1;
y2 = m2.*(x2-10)+c2;
y3 = m3.*(x3-25)+c3;
y4 = m4.*(x4-100)+c4;
% Plotting the terrain profile
x=[x1 x2 x3 x4]';
y=[y1 y2 y3 y4]';
figure(1)
plot(x,y); % Plotting the Ground elevation vs distance
ylim([0 25]);
xlabel('Distance [m]');
ylabel('Ground Elevation');
title('Ground Elevation vs distance (m)');

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2017-11-18
For the code
y1 = m1.*(x1)+c1;
y2 = m2.*(x2-10)+c2;
y3 = m3.*(x3-25)+c3;
y4 = m4.*(x4-100)+c4;
the lines after the first are "translating" the standard y = m*x+b to start at x=10, x=25, and x=100 respectively.
Mathematically these adjustments to x could also be folded into the c constants by increasing the c constants by -m2*10, -m3*25, and -m4*100 respectively, like
y2 = m2 .* x2 + (c2-m2*10)
It is just changing the intercept of the line in a way that is easier to think about in this case.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Data Analysis 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by