
Recent Posts

Recent Comments
 RodStephens on Use a cryptographic random number generator in C#
 Rand_dev on Use a cryptographic random number generator in C#
 charles on Draw a 3D Menger sponge fractal using WPF, XAML, and C#
 RodStephens on Make a C# DLL and use it from Excel VBA code
 RodStephens on Find the word under the mouse in a RichTextBox control in C#
Archives
 August 2018
 July 2018
 June 2018
 May 2018
 April 2018
 March 2018
 February 2018
 January 2018
 December 2017
 November 2017
 October 2017
 September 2017
 August 2017
 July 2017
 June 2017
 May 2017
 April 2017
 March 2017
 February 2017
 January 2017
 December 2016
 November 2016
 October 2016
 September 2016
 August 2016
 July 2016
 June 2016
 May 2016
 April 2016
 March 2016
 February 2016
 January 2016
 December 2015
 November 2015
 October 2015
 September 2015
 August 2015
 July 2015
 June 2015
 May 2015
 April 2015
 March 2015
 February 2015
 January 2015
 December 2014
 November 2014
 October 2014
 September 2014
 August 2014
 July 2014
 June 2014
 May 2014
 February 2014
 January 2014
 December 2013
 October 2013
 August 2013
 June 2013
 December 2012
 September 2012
 July 2012
 June 2012
 November 2011
 May 2011
 April 2011
 February 2011
 December 2010
Categories
 .NET
 3D
 3D graphics
 ADO.NET
 algorithms
 animation
 API
 arrays
 attributes
 audio
 books
 C#
 C# programming
 calculations
 challenges
 classes
 clipboard
 coding
 combinatorics
 console
 controls
 cryptography
 curve fitting
 database
 debugging
 dialogs
 directories
 Drag and Drop
 drawing
 drawings
 enums
 Event
 events
 example program
 Excel
 extension methods
 extensions
 files
 finance
 fonts
 formatting
 forms
 fractals
 ftp
 games
 GDI+
 generic
 geometry
 globalization
 graphics
 html
 IDE
 image processing
 inheritance
 interfaces
 internationalization
 internet
 interoperability
 LINQ
 lists
 localization
 mathematics
 memory
 menus
 MessageBox
 methods
 miscellany
 multimedia
 network
 Office
 OOP
 operators
 parsing
 performance
 phone
 PowerPoint
 printers
 printing
 productivity
 programs
 puzzles
 recursion
 reflection
 registry
 regular expressions
 serialization
 settings
 SQL
 stories
 strings
 syntax
 system
 threading
 tips
 tools
 transformations
 Uncategorized
 user interface
 variables
 VBA
 web
 Windows Forms programming
 WMI
 Word
 wpf
 XAML
 XML
Meta
Tag Archives: circles
Draw an interesting pattern of circles in C#
This program simply draws an interesting arrangement of circles. I wrote it because a C# Helper post was mentioned on this Factal [sic] Patterns & Art page. This program uses the following code to draw the circles and connecting lines. … Continue reading
Posted in algorithms, drawings, geometry, graphics, mathematics
Tagged algorithms, C#, C# programming, circles, drawing, example, example program, geometry, graphics, mandala, mathematics, patterns of circles, Windows Forms programming
Leave a comment
Randomly color an Apollonian gasket in C#
This example is similar to the example Draw an Apollonian gasket in C# except it fills the circles it draws with random colors. The program uses the following code to generate random colors. // Return a random color. private Random … Continue reading
Draw an Apollonian gasket in C#
The example Find circles that are tangent to three given circles (Apollonius’ Problem) in C# shows how to find up to eight circles that are tangent to three given circles. This example uses that method to build an Apollonian gasket. … Continue reading
Draw three circles and find their tangent circles in C#
This example is similar to previous one Find circles that are tangent to three given circles (Apollonius’ Problem) in C# except it lets you click and drag to draw the three given circles. It then finds the (up to) 8 … Continue reading
Find circles that are tangent to three given circles (Apollonius’ Problem) in C#
Given three objects that can be a point, line, or circle, you can try to draw circles that are tangent to each. The case using three circles is called Apollonius’ Problem. Originally these problems were studied by Euclid (ca. 300 … Continue reading
Draw a circle through three points in C#
The perpendicular bisector of any chord on a circle passes through the circle’s center. To find the center given three points, simply find the perpendicular bisectors of the first two and last two pairs of points, and see where the … Continue reading
Posted in algorithms, drawing, graphics, mathematics
Tagged algorithms, C#, C# programming, circle, circle defined by points, circle defined by three points, circle through three points, circles, define circle, define circles, draw circle, drawing, example, example program, find circle, graphics, mathematics, Windows Forms programming
6 Comments
Partition an area with circles and draw each region’s count in C#
This example shows how you can partition an area with circles and determine the number of circles that contain each of the pieces. The example Find the area where circles overlap in C# explains how to find the area where … Continue reading
Posted in algorithms, geometry, graphics, mathematics
Tagged algorithms, C#, C# programming, circles, example, example program, geometry, graphics, mathematics, partition, Region, region count, Windows Forms programming
4 Comments
Find the area where circles overlap in C#
This example shows how you can find the area where circles overlap in a .NET program. The example Determine where two circles intersect in C# shows how to find the points where two circles intersect. Finding the area where more … Continue reading