C#, Root, UI, Windows Phone

A Custom (Async) MessageBox for WPF and Windows Phone

The System.Windows.MessageBox provided by .NET is limited to a very small set of MessageBoxButtons (Yes/No/OK/Cancel) which do not allow for custom Button texts. The System.Windows.Forms.MessageBox also blocks the UI thread, which can be an annoying disadvantage as well. The MessageBox on Windows Phone has the same disadvantages. Custom buttons in a MessageBoxe simplify the decision for the user, because they can describe the results of the action: However you need to do this with a custom control, so for WPF as well as Windows Phone I designed a simple method for asynchronously showing a MessageBox with custom buttons. (The WPF implementation based on this control by Evan Wondrasek) So let’s bring some sample code.In WPF you can use multiple custom buttons: And on Windows Phone you’re limited to 2 buttons: To use CustomMessageBox, you need to get TCD.Controls from NuGet: And on Windows Phone 7.x you also need async support,…

Bio, C#, Root

03 Der Needleman-Wunsch-Algorithmus

Einführung in die Bioinformatik Vorbereiten der Software Grundlagen der objektorientierten Programmierung Einfaches Codebeispiel – manipulieren eines strings Referenzieren einzelner Zeichen in einem string Generieren einer zufälligen Aminosäure-Sequenz Scoring von Alignments Prüfen auf Identität Bewerten von Mutationen – Substitution Matrix Bewerten eines Alignments Der Needleman-Wunsch-Algorithmus Die F-Matrix (abstrakt) Auswählen des Alignments (abstrakt) F-Matrix (Code) Auswählen des Alignments (Code) Die F-Matrix (abstrakt) Der Needleman-Wunsch-Algorithmus geht bei der Berechnung des idealen Alignements in zwei Schritten vor, um exponentiell skalierende Rechenzeit zu vermeiden. Zunächst wird die sogenannte F-Matrix berechnet, aus welcher anschließend das ideale Alignment zusammengesetzt wird. Zur Veranschaulichung alignen wir die Sequenzen GACFC und GCFHC. Jedes Feld in der Matrix (jede Zelle der Tabelle) beinhaltet einen Score. Diese Punktzahl ist jene, die auf dem Weg zur Berechnung des Feldes gesammelt wurde. Zur Berechnung einer Zelle sind immer die Felder links oben, oben und links notwendig: Unter den drei Feldern wird jenes gewählt, durch…

C#, Kinect, UI, Windows 8

TCD.Kinect

EDIT: If you’re interested in Skeleton tracking and calculating 3D stuff, take a look at TCD.Mathematics too^^ EDIT: There’s a WPF application that I once wrote, featuring SkeletonPainter3D: Kinect Sword. There’s a Youtube video of it (http://youtu.be/2j6GCd4M1bA) and that’s the source code: http://dl.dropbox.com/u/7813771/Blog/CodeSamples/KinectSword.zip   Hello there, I’ve created another UserControl, this time for Kinect and .NET 4.5, which hopefully has the potential to save you a lot of time. It can be used to draw three-dimensional Skeletons and explore the virtual space around them in real-time. A picture may be more appropriate: The control can be constructed in XAML: xmlns:kinect=”clr-namespace:TCD.Kinect.Controls;assembly=TCD.Kinect.Controls” <kinect:SkeletonPainter3D x:Name=”painter” Background=”Black” IsAnaglyphEnabled=”False” CameraFieldOfView=”70″ CameraPosition=”0,0.5,-1″ CameraLookAt=”0,0,2″ /> And populated with Skeletons using painter.Draw(skeletons), where skeletons is an Skeleton[] from inside the SkeletonFrameReady event. You can either get the TCD.Kinect package from NuGet, or refer to the sample implementation: http://code.msdn.microsoft.com/Implementation-of-f175b025 Let me know if you have any questions or suggestions, and by the way: SkeletonPainter3D has an experimental…

Software, UI, Windows 8

TouchInjector

Hello world, Today I proudly present: TouchInjector TouchInjector is a Windows 8 Desktop application that translates TUIO into Windows Touch messages. It’s lightweight, easy to use and does not get in the way. No installation is required and with one click you can customize it to autorun with the system (on logon). As I frequently change my display settings, TouchInjector observes them and reacts accordingly. You can download it here. There are no further software requirements than a Windows 8 system. Just unzip, unblock and run it. (Allow access through the firewall and make sure that no other TUIO clients block the port.) Have fun! ~theCake

C#, UI, Windows 8

Windows 8 TouchInjection with C#

The Windows 8 platform provides an API to inject touch events (WM_TOUCH..) via a C++ API. The API is relatively easy to use, but not available in C#, unless you do DllImport/PInvoke. I found this to be kind of tricky, but finally I succeeded to make a C# library that can be used to use the TouchInjection API from C#. You can find TCD.System.TouchInjection on NuGet, or have a look at the TouchInjection.cs file itself. You may notice that I renamed all the strucs, enums and classes to look nicer than their C++ counterparts. The IntelliSense descriptions are available for almost everything! (I got them from the documentation on msdn..) I’ve made a sample application for the MSDN Code Gallery as well. Here’s a small collection of useful resources regarding the TouchInjection API: C++ sample application C++ TouchInjection API walkthrough

C#, Kinect

Draw the Skeletons in two lines

Hello, Recently I was coding some Kinect stuff and wanted to draw the skeleton that the user can see what’s going on. In the Samples there’s some code for that, but it’s pretty annoying to copy/paste it in your own project every time, so I wrapped it up in a class called SkeletonPainter. To use it you just need an Image of either 640×480 or 320×240 and hand it over to the SkeletonPainter, along with the resolution and a background Brush of your choice: SkeletonPainter painter = new SkeletonPainter(skeletonImage, SkeletonPainterResolution.Resolution320x240, Brushes.White); Of course, you need to hand him the KinectSensor as well: painter.SwitchSensor(sensor); This way you can easily switch the KinectSensor while the painter is still active^ Have a try and tell me what you think =) Download TCD.Kinect.zip

C#, Kinect, Software, UI

Kinect over Sockets

There’s no Kinect support in Windows 8 Metro, so I had to come up with a network-based solution to use the tracked skeleton data. A byproduct of this are the TCD.Networking and TCD.Kinect namespaces. Both have a Server and a Client child namespace (with simple network communication or Kinect over network..). What I can make available today is a sample of how to send Kinect-skeleton-data from a WPF server application through the network (or to localhost..) to a WPF client application. While an advantage of network-based routing is that you can have multiple clients, a major disadvantage is that you can’t use the tracking-engines methods to render 3D-coordinates to a pixel coordinate. I had to make a CustomSkeletonData class as well, b/c the JSON deserialization is kind of fussy. You may use all code and libraries you find in the solution to power your own projects =) Most of it…

Kinect, Software, UI

KinDrive enhanced – working w/ every game using DirectX input

Last week – on thursday to be precise – I stumbled over a library to send input to the system on DirectX-level, called InputManager (a big different to all the tons of SendKeys()-wrappers out there!!). So great thanks to Shay from Israel for making this awesome library!! As all the rest of the architechture was up and running already, I just made a simple WPF application to show the Skeleton and listen for a gesture as well. The gesture (streching your arms in the air) causes the WASD-input to halt, a press of the F-Key (which I usually use to enter vehicles/use weapons in games..) and finally after 3.5 seconds everything continues as before. Here’s a video of the KinDrive for GTA WPF application: Then of course: GTA IV: And just for fun – Need For Speed Carbon: For those interested in DirectX-level Keyboard/Mouse input: I’ll blog about the InputManager anytime soon. My plan is to open source…

Kinect, Software, UI

KinDrive

Hey everyone, I’m happy to announce that I finally did the re-coding of KinDriver, now called KinDrive. The new version is made with the Beta 2 SDK, is a lot more stable, simpler and faster than the old one. It lacks of speech recognition and remote-controlability, but I splitted the two main features (tracking and keypressing) into separate assemblies, so it’s very easy to build a whole new application out of it! Here comes the code part: (if you aren’t interested in using coding, skip to the last paragraph)   TCD.KinDrive.Tracking.dll In this assembly there are three classes: KinDriveTracker, Point3D and DriveInformation TCD.Mathematics.Point3D is just a helper class for 3D vectors/points with some useful calculation-methods (like calculating the distance etc.) DriveInformation exposes two properties, Throttle and Steer, as well as a constructor that takes a SkeletonFrame as a parameter. Tracking and steer/throttle calculations are done by this very same constructor….

Software

Tool collection

Hey everyone out there, I just decided to share some tools I made with C# (Console or WPF) with you: 1. Batch4sqQR – A tool to create nice QR-Stickers for one or more Foursquare venues (download) 2. MergeTool – A tool to merge all *.gpx files in a folder into one new *.gpx (download) 3. AnonymizeTool – A tool to randomly shift the timestamps of all trackpoints & waypoints in all *.gpx files in a folder (download)   These tools are very simple, but there aren’t any or many applications on the internet that do those things^^ Of course you can contact me if you have any questions or so x)