Create Circles

Create circles and other shapes with the mouse.

Description

Lets you create a circle with N points in the current figure. Use the mouse to indicate the center and adjust the radius. Press ENTER to confirm the shape and output its X and Y values. The N parameter is optional. Default 20.
N = 3 can be used to draw triangles, N = 4 to draw squares etc.

Uses parts of getrect and getline (c) The MathWorks, inc.

• Required Products: Image Processing Toolbox
• MATLAB release: MATLAB 7.2 (R2006a)

[Roobn M]

Image Processing Toolbox is NOT needed. Neat program although some changes would make it more usefull, i.e. outputing the radius and centerpoint seems better than just spitting out x,y values for the line. Also, the circle gets deleted immediately after being drawn, just comment out lines 83-85 to fix.

[Husam Aldahiyat]

Hehe, this is a funny code.

[Jason]

Good program, but I'm trying to find the diameters (relative to scalebar) for multiple circular particles in an image. Does anyone know how I can use this program to draw multiple circles on an image and output the diameters?