-
Recent Books:
![[WPF 3d, Three-Dimensional Graphics with WPF and C#]](http://www.csharphelper.com/wpf3d_160_200.png)
![[The C# Helper Top 100]](http://www.csharphelper.com/top100_161_200.png)
![[Interview Puzzles Dissected]](http://www.csharphelper.com/interview_puzzles_161_200.jpg)
![[C# 24-Hour Trainer]](http://www.csharphelper.com/csharp24hr_2e_79x100.jpg)
![[Beginning Software Engineering]](http://www.csharphelper.com/sw_eng_tiny.png)
![[C# 5.0 Programmer's Reference]](http://www.csharphelper.com/csharp_prog_ref_80x100.png)
![[Essential Algorithms: A Practical Approach to Computer Algorithms]](http://www.csharphelper.com/essential_algs_81x100.jpg)
Recent Videos:
![[Mastering Events and Delegates in C#]](http://www.csharphelper.com/mastering_events_61_100.png)
![[Using Interfaces in C#]](http://www.csharphelper.com/using_interfaces_60_100.png)
![[Learning Data Structures and Algorithms]](http://www.csharphelper.com/algs_video_tiny.png)
![[Learning Visual Basic .NET]](http://www.csharphelper.com/vb_video_tiny.png)
-
Recent Posts
-
Recent Comments
- RodStephens on Read a CSV file into an array in C#
- su on Read a CSV file into an array in C#
- RodStephens on Make a 3D globe in WPF and C#
- Make an intuitive extension method to draw an elliptical arc in WPF and C# - C# HelperC# Helper on Calculate where a line segment and an ellipse intersect in C#
- Juergen Schroether on Make a 3D globe in WPF and C#
Archives
- 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
- three-dimensional 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