draw circle through two given points in plot

31 visualizaciones (últimos 30 días)
Josefina Ottitsch
Josefina Ottitsch el 3 de Abr. de 2019
Respondida: the cyclist el 3 de Abr. de 2019
Hello
I have the following code
close all
x = -pi:0.01:pi;
a=sin(x)
plot(x,a)
hold all
plot(1,sin(1),'o')
plot(2,sin(2),'o')
I want my program to draw a circle between the two points, given in the program, using the least squares fitting method.
How do I draw a circle between two points (without knowing radius or middlepoint) ?
thank you so much!

Respuestas (1)

the cyclist
the cyclist el 3 de Abr. de 2019
In general, there are an infinite number of circles that pass through two given points.
If you don't care which one, then one possible algorithm is to
  • for the center of the circle, find the midpoint of the line segment that connects the two points
  • for the radius, use the distance from that midpoint to one of the points
It is easy to find formulas for these two steps.

Categorías

Más información sobre Surface and Mesh Plots en Help Center y File Exchange.

Etiquetas

Community Treasure Hunt

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

Start Hunting!

Translated by