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  • 0 comments  /  posted by  Silverlight Show  on  Apr 21, 2010 (1 week ago)
    David Anson has published the updated version of his Silverlight/WPF Data Visualization Development Release and this time he has included Windows Phone 7.

    As with previous Data Visualization Development Releases, I've updated the code and binaries to match the most recent Toolkit release. The Silverlight 4 Toolkit shipped most recently, so the code in this Development Release is identical to what just went out with that. Which means people using Data Visualization on Silverlight 3, Windows Phone 7, WPF 3.5, or WPF 4 can also take advantage of the latest round of improvements by updating their applications to use the binaries included with this Development Release (or by compiling the included source code themselves).

  • 0 comments  /  posted by  Silverlight Show  on  Jul 11, 2009 (9 months ago)
    David Anson announces that the Silverlight Toolkit July 2009 release is now available.

    The new sample shows off the TreeMap control that's now part of the System.Windows.Controls.DataVisualization namespace. The Wikipedia entry explains TreeMaps in detail; the executive summary is that TreeMaps are used to visualize the values of a single property (ex: team scores) across an entire data set. They do this by adjusting the size (i.e., area) of each element so items with larger values are bigger, items with smaller values are littler, and the relative proportions are correct. There are some different algorithms to do this layout; our TreeMap implements the common "squarified" algorithm.

  • 0 comments  /  posted by  Silverlight Show  on  Jun 16, 2009 (10 months ago)
    David Anson has posted a quick sample of creating a nice visual effect with Silverlight/WPF Charting.

    I was recently part of an e-mail thread with Pete Brown discussing the prospects of reproducing Richard Zadorozny's cool "jelly chart" behavior with the official Silverlight/WPF Charting controls from the Silverlight Toolkit. Richard's sample is really fun to play around with - but at the core it's really just a slick user experience demo masquerading as a charting solution. The question was: how hard it would be to take a real-world charting solution and get it to masquerade as a slick user experience demo...

  • A versatile red-black tree implementation for .NET (via Silverlight/WPF Charting)

    0 comments  /  posted by  Silverlight Show  on  Jun 03, 2009 (11 months ago)

    In his last post David Anson wrote about Charting's use of a custom binary tree implementation and outlined some limitations of that algorithm and the particular implementation of it. In this post, he is going to explain how to address those limitations for the next release of Charting and share the general purpose code he's using to do it!

    The fundamental problem with our current BinaryTree implementation is that offers no guarantee of balance, and can devolve into linear performance even when dealing with fairly typical data. And this isn't an implementation problem - it's an algorithmic one: if you want balancing behavior, you should really use a data structure that balances. (Duh...) One of the most popular data structures for implementing a balanced binary tree is the red-black tree.

  • Some background on Charting's ordered multiple dictionary implementation

    0 comments  /  posted by  Silverlight Show  on  May 28, 2009 (11 months ago)

    David Anson has posted a bit of background on the BinaryTree class that's used by Silverlight/WPF Charting.

    So I set aside some other tasks and dashed off a quick binary tree implementation to do what we needed and preserve the performance gains from faster searching. The resulting code for BinaryTree is part of the Charting source code and can be viewed here or as part of the Silverlight Toolkit download. It's fairly simple and straightforward, though there are a few things worth calling out.

  • Chart tweaking made easy

    0 comments  /  posted by  Silverlight Show  on  May 21, 2009 (11 months ago)
    David Anson will show you how to make four simple color/ToolTip changes with Silverlight/WPF Charting.

    While answering a support forum question I'd seen a couple of times before, I figured it would be helpful to write a post showing how to make simple styling changes to charts created by the Charting controls that come with the Silverlight Toolkit. Note that I said simple changes - if you want to make more dramatic changes, you should go read some of the excellent tutorials Pete Brown has written on the topic. Links to Pete's posts (and other interesting posts) can be found on my latest Charting links post.

  • 0 comments  /  posted by  Silverlight Show  on  Apr 23, 2009 (more than a year ago)

    David Anson has made a quick fix for the unofficial build of the Silverlight Charting assembly for WPF.

    When I updated my ChartBuilder sample/application/learning tool for the March 09 release of the Silverlight Toolkit a few weeks ago, I included an unofficial build of the Silverlight Charting assembly for WPF. Despite my warning that WPF Charting was completely untested, I nevertheless hoped that some of you would give WPF Charting a try - and you didn't let me down. :) Two significant WPF-only issues came up pretty quickly, and I responded by fixing them and publishing an updated build of the WPF Charting assembly - along with sharing the files and steps for anyone to build the WPF Charting assembly themselves! 

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