This is a robust and accurate circle fit. It works well even if data points are observed only within a small arc. This circle fit was proposed by G. Taubin in article "Estimation Of Planar Curves, Surfaces And Nonplanar Space Curves Defined By Implicit Equations, With Applications To Edge And Range Image Segmentation", IEEE Trans. PAMI, Vol. 13, pages 11151138, (1991). It is more stable than the simple Circle Fit by Kasa...
This is a robust and accurate circle fit. It works well even if data points are observed only within a small arc. This circle fit was proposed by V. Pratt in article "Direct leastsquares fitting of algebraic surfaces", Computer...
This is the fastest (though not most accurate) method of fitting a circlle to data points on a plane (given by their xycoordinates). It returns the circle center (a,b) and radius R. It was proposed by I. Kasa in article "A curve fitting...
Arbitraryorder polynomial datum is fit to and extracted from input xy data. Outliers  defined based either on a nonparametric or mutliplesofstandard deviation criteria  are optionally identified and "set aside". The interative...
Iterative, robust fit of the exact equation of a circle to xy data. Outliers are identified based on multiples of current standard deviation and "set aside". The interative solution proceeds until there are no remaining outliers. Returns...
This function detects a circle in any gray scale image by thesholding using Ostu's rule. The range of radius for detection of circle can be defined inside the function named Hughcir.m.
This function will compute the great circle distance between two points on a sphere of uniform radius using the Vincenty formula. At minimum, four inputs are required: lat1, long1, lat2, long2. Optionally, a fifth parameter (r) can be specified....
This function uses rectangle command to plot a circle. The center is to be given in a vector form and radius is a nonnegative number.
Draws a circle or ellipse on a RGB image. can be used to insert circles into movies. Includes a little animation demo that demonstrates the use.
On the gaussian fit i used "polyfit" which gives you en absolut one solution, but have some problems fitting nonlinear model.
In the attached file example i use "nlinfit", which can fit any kind of function that you...
Code uses Bresenham Algorithm to draw a circle, with a modification parameter to increase/decrease the step for calculation of point. Bresenham Algorithm is used to reduce the calculation needed for drawing a circle by making use of property of...
A simple gui design shows the ability to make dynamic plotting by changing the value of slider which produce a change in the circle radius.
This program uses graphical user interface to demonstrate the detection of moving a small circle toward a circular region. This property is useful foe obstacle detection application.
Ali Talib Oudah MSc. Mechatronics Eng.
This is a good example of the integer midpoint circle algorithm. No pixels are missed or repeated.
Similar to a traditional writers circle, but with a workflow optimized for bloggers. This helps you get and give constructive criticism of your drafts, without annoying your friends.
Creative writing is surprisingly hard, and it takes...
CircleU v1.0 is an easytouse and completely customizable circular navigation menu with custom cursor support. It adds a unique touch to any site where a nonstandard menu is desired and supports a variety of special effects (including...
CSS customizations can be applied to the calendar to fit any web design scheme.
This plugin forms the basis for the jQuery UI Datepicker. It is made available as a separate plugin since the UI team desired simplified functionality for...
Script that plots streamlines around a circle and around the correspondig Joukowski airfoil. It's obviously calculated as a potential flow and show an approximation to the KuttaJoukowski Lift.
This code takes an input of a set of given (x,y) points in the Cartesian coordinates and returns the center and radius of the minimum circle enclosing the points.
This code is based on that of Yazan Ahed, and contains no changes in the...
This is a fast noniterative ellipse fit, and among fast noniterative ellipse fits this is the most accurate and robust.
It takes the xycoordinates of data points, and returns the coefficients of the equation of the ellipse:
