## How to plot a circle?

on 8 Jan 2013

### Image Analyst (view profile)

Hi Everybody,

I am trying to plot a circle with radius= 190 km, and the centre of circle is (2.55, 101.46)both are in degree. If I have to change in km also are become like this (283.87, 11295.0345)km. The question is how can I determine the centre of circle by symbol? and the sketch has been attached here would be useful because I do not know how to plot like this? Could you please help me?

http://www.sendspace.com/file/9w4sx8

```radius = 190;
centerX = 2.55;
centerY = 101.46;
'Curvature',[1,1],...
'FaceColor','w');
axis square;
```

Image Analyst

### Image Analyst (view profile)

on 8 Jan 2013

I don't know which of the four "download" words to click on on that page. Why don't you try http://snag.gy or tinypic.com?

Ara

### Ara (view profile)

on 8 Jan 2013

Thank you. I did it. http://snag.gy/N2jVI.jpg

### Image Analyst (view profile)

on 8 Jan 2013

I don't know what "determine the centre of circle by symbol" means, but I can tell you from the code that the center of the circle is at (x, y)=(2.55, 101.46) but I don't know what you mean when you say "both are by degree". What does a pair of degrees mean? Aren't x and y in km? How are they in degrees? What does that mean?

Ara

### Ara (view profile)

on 9 Jan 2013

Yes,agree. But you know I do not want fit the circle with the positions I gave. What I want a circles that already known radius and centre and now just want to plot and fit the tiny circles in it. I mean fit tiny circles with the constant circles around them. To see weather all the tiny circles located in this area or not.

Ara

### Ara (view profile)

on 16 Jan 2013

Thank you, Image. Sorry for the late response. Just remain some questions and I am trying to solve it, if I can't fix it I will bother you again.

Image Analyst

### Image Analyst (view profile)

on 16 Jan 2013

Then perhaps you want this: http://www.mathworks.com/matlabcentral/fileexchange/34767-a-suite-of-minimal-bounding-objects? It will find the smallest circle (or rectangle or triangle, or other redefined shapes) that will contain (fit) all your points inside.