Draw a line from 2 points and get x and y values

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Karla Haiat
Karla Haiat 2018-7-18
评论： Karla Haiat 2018-7-18
Hello,
I am trying to draw a line between two points (x1,y1) and (x2,y2), but when plot them together like this: plot([x1,x2],[y1,y2]), I only get the x1,x2 x values and y1,y2 values. I want to draw a line that will give me all point on the whole line. How do I do this?

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Aquatris
Aquatris 2018-7-18
编辑：Aquatris 2018-7-18
Simple linear interpolation code;
% 100 points on the line connecting [x1 y1] and [x2 y2]
x = linspace(x1,x2,100); % 100 points between x1 and x2
y = linspace(y1,y2,100); % 100 points between y1 and y2
  2 个评论
Aquatris
Aquatris 2018-7-18
You cannot get all the points since there are infinite points on a line. You either need to settle for a large enough number, like 100 shown in the code, or you can derive the equation of the line and do what you want with the equation of the line.
Karla Haiat
Karla Haiat 2018-7-18
Great, I just needed something simple like this. Appreciate the help.

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