
Recent Posts

Recent Comments
 RodStephens on Use steganography to hide one picture inside another in C#
 Lee Wei Keat on Use steganography to hide one picture inside another in C#
 Draw an image circle in C#  C# HelperC# Helper on Draw an image spiral in C#
 Dean on Use a TreeView to display property pages or option pages in C#
 RodStephens on Format an XML file so it looks nice in C#
Archives
 February 2020
 January 2020
 December 2019
 November 2019
 October 2019
 September 2019
 August 2019
 July 2019
 June 2019
 May 2019
 April 2019
 March 2019
 February 2019
 January 2019
 December 2018
 November 2018
 October 2018
 September 2018
 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
 threedimensional graphics
 tips
 tools
 transformations
 Uncategorized
 user interface
 variables
 VBA
 web
 Windows Forms programming
 WMI
 Word
 wpf
 XAML
 XML
Meta
Tag Archives: Matrix
Find a matrix inverse in C#
This example finds a matrix inverse for a square matrix. The inverse of a matrix is another matrix that, when multiplied by the first, gives the identity matrix as a result. In the identity matrix, all entries are 0 except … Continue reading
Map drawing coordinates without distortion in C#
The post Easily map drawing coordinates in C# lets you easily map a rectangle in drawing coordinates to a rectangle in device coordinates. Often, however, you’ll want to ensure that the drawing area isn’t distorted. In other words, you don’t … Continue reading
Posted in algorithms, drawing, graphics, mathematics
Tagged aspect ratio, C#, C# programming, device coordinates, distortion, drawing, drawing coordinates, example, example program, graphics, map coordinates, Matrix, rotate, rotation, scale, scaling, transform, transformations, translate, translation, Windows Forms programming, world coordinates
1 Comment
Easily map drawing coordinates in C#
The example Map points between coordinate systems in C# shows several ways you can map drawing coordinates to screen coordinates. They all work but these sorts of coordinate conversions are really common if you’re doing more advanced graphics so I … Continue reading
Posted in drawing, graphics, transformations
Tagged C#, C# programming, device coordinates, drawing, drawing coordinates, example, example program, graphics, map coordinates, Matrix, rotate, rotation, scale, scaling, transform, transformations, translate, translation, Windows Forms programming, world coordinates
1 Comment
Draw round circles in scaled coordinate systems in C#
In other posts I explain how you can use transformations to draw objects in a coordinate system other than the one provided “natively” by a PictureBox, Bitmap, and other objects that support drawing. Basically a transformation (represented by a Matrix … Continue reading
Posted in drawing, graphics, mathematics
Tagged C#, C# programming, drawing, example, example program, graphics, inverse, invert, lines, mathematics, Matrix, pens, scale, transform, transformation, Windows Forms programming
Leave a comment
Map points between coordinate systems in C#
This example shows how you can easily map points between different coordinate systems. The Graphics object provides transformations that let you scale, translate, rotate, skew, and otherwise transform graphics as you draw them. One important use of these transformations is … Continue reading
Posted in algorithms, drawing, graphics, transformations
Tagged algorithms, C#, C# programming, coordinate systems, drawing, example, example program, graphics, map, mapping, Matrix, ResetTransform, scale, ScaleTransform, transform, transformations, translate, TranslateTransform, Windows Forms programming
3 Comments
Zoom on a graph with XAML code in C#
This example shows how you can zoom on a graph with XAML code only, without using C# code. (The program does use C# code to build the graph. It just doesn’t use any to zoom.) The example Zoom in on … Continue reading
Posted in algorithms, drawing, geometry, graphics, mathematics
Tagged algorithms, C#, C# programming, draw graph, draw graph in WPF, drawing, example, example program, geometry, GeometryGroup, graph, graph labels, graphics, label graph, labels, LineGeometry, mathematics, Matrix, Polyline, rotate text, rotated label, rotated text, tic marks, transformation matrix, transformations, Windows Forms programming, WPF, XAML
Leave a comment
Zoom on a graph in WPF and C#
It’s remarkably easy to zoom on a graph in WPF. This example extends the example Let the user click on graph points in WPF and C#. To modify the previous version, you first need to rebuild the user interface a … Continue reading
Posted in algorithms, drawing, geometry, graphics, mathematics
Tagged algorithms, C#, C# programming, draw graph, draw graph in WPF, drawing, example, example program, geometry, GeometryGroup, graph, graph labels, graphics, label graph, labels, LineGeometry, mathematics, Matrix, Polyline, rotate text, rotated label, rotated text, scale, tic marks, transformation matrix, transformations, Windows Forms programming, WPF, XAML, zoom
2 Comments
Let the user click on graph points in WPF and C#
This example shows how you can let a user click on graph points to display information about the data. (It extends the example Draw a graph with rotated text in WPF and C#.) When the user moves the mouse over … Continue reading
Posted in algorithms, drawing, geometry, graphics, mathematics
Tagged algorithms, C#, C# programming, draw graph, draw graph in WPF, drawing, example, example program, geometry, GeometryGroup, graph, graph labels, graphics, label graph, labels, LineGeometry, mathematics, Matrix, Polyline, rotate text, rotated label, rotated text, tic marks, transformation matrix, transformations, Windows Forms programming, WPF, XAML
1 Comment
Draw a graph with rotated text in WPF and C#
This example shows how you can draw a graph with rotated text. The example Draw a graph with labels in WPF and C# has a DrawText method that makes adding text to a graph relatively easy. This example uses the … Continue reading
Posted in algorithms, drawing, geometry, graphics, mathematics
Tagged algorithms, C#, C# programming, draw graph, draw graph in WPF, drawing, example, example program, geometry, GeometryGroup, graph, graph labels, graphics, label graph, labels, LineGeometry, mathematics, Matrix, Polyline, rotate text, rotated label, rotated text, tic marks, transformation matrix, transformations, Windows Forms programming, WPF, XAML
2 Comments
Draw a graph with labels in WPF and C#
This example shows how you can draw a graph with labels. The previous example Draw a graph with even tic marks in WPF and C# draws a simple graph. This example adds a title and labels to the X and … Continue reading
Posted in algorithms, drawing, geometry, graphics, mathematics
Tagged algorithms, C#, C# programming, draw graph, draw graph in WPF, drawing, example, example program, geometry, GeometryGroup, graph, graph labels, graphics, label graph, labels, LineGeometry, mathematics, Matrix, Polyline, tic marks, transformation matrix, transformations, Windows Forms programming, WPF, XAML
1 Comment