Is there a really quick and easy way to draw a TreeView in a GDI Graphics Object (its TreeNode Collection) in a way such as
alt text http://www.tenstep.com.br/br/TenStepPGP/imagens/EAP5.jpg
?
It could be a component do buy or any that is for free.
Thanks
There are be several ways to go about this:
Write it yourself (it's rather easy to do if you know the type of diagrams you're dealing with and customization is not important)
Automate one of the well-known applications which do that (Visio or Omnigraffle come to mind). In fact, when I had to programmatically generate manipulate diagrams like that, I ended up writing .NET code inside Visio.
Look through open-source UML tools to see if there is code you can use. A good list of such tools can be found on Wikipedia. Please pay attention to the license of the code you end up using.
Related
I'm trying to incorporate HRTF in an wpf application. I'm working with the MIT Kemar HRTF-dataset but have no idea how to use the wav-files that it is comprised of. I get the angle and elevation but then how do I use the wav-file to make my audio-file sound like it's coming from that specific directions?
if there is any easier way of using HRTF in wpf that would of course be preferable.
You need to do some sophisticated convolutions on your input signal. It's quite hard to explain here, so read some scientific articles associated with the MIT data set. We had a student here implementing them, so if you don't understand it, consider hiring someone with a academic background with signal/audio processing skills to do it.
I'm not familiair with specific implementations for wpf, but you may look for hardware-based solutions that make use of the same principles.
I am trying to build my understanding of OpenGL and see how the 'pros' do things. I am looking for examples of these objects (preferably in C) - I've learned through examples so I think it would help others to see it as well :)
I'm very much a nubie at openGL so this may be a stupid question - I'm just looking for objects I can mess around with to get more familiar with openGL. I have found that it's easier for me to pick things up by tweaking an example until it breaks, then fix it :)
#Nicol Bolas - When I say composite objects I mean objects that when linked together create something 'larger.' An example would be a car. It has a body and tires. Maybe I'm not using the correct term here?
You might be interested in this list of OpenGL based games and applications, particularly the Open Source games.
Also, Ogre 3D is a well-known Open Source graphics engine with an OpenGL renderer.
From .NET Rocks! Show #488:
Richard Campbell: "In the GDI world we
got a document from Microsoft that
said you will build your apps in
battleship gray and here's now they
should look: File goes here and Help
goes here, and we all got that as
developers. There's no book like that
for WPF. There was this idea I've got
to find the guy in a black turtleneck
and here is his piece of software and
you guys go play nice now."
I think Microsoft now wants every Windows application to look like the ugly, difficult-to-use, hardware-bundled crapware we all hate!
Is there no such best-practices document?
There is a Windows User Experience Interaction Guidelines document that Microsoft makes available. It might be along the lines of what you are looking for, but it isn't specifically a WPF or Silverlight best practices guide.
Nobody has paid much attention to MS ui guidelines in a very, very long time (including MS). It is a big part of the reason why every app on windows looks and behaves different from every other app.
Depends on the guidance you're looking for. The primary reason everything was battleship grey in Winforms was less because the Microsoft guide said it should be (it didn't) and more because that was the default and it was a pain to write it differently. Even now, I would imagine that the bulk of the LOB apps written with Silverlight or WPF will use default colors and styles for exactly the same reasons.
But a lot of the other UI guidelines can still apply. If you want something the looks and feels familiar, there's no reason that you can't make a standard menu bar with File, Edit, View, Help, etc. You can still use the same hotkeys, same commands, same layout for buttons and controls.
Keep in mind though that these guidelines were written with assumptions about software and computers in general that are no longer true. The dominant paradigm has changed and people are far more used to websites with different UI layouts and richer visuals. As a result, visual style is a lot more diverse and people are less likely to be confused by some non-standard layouts and controls. Which doesn't mean that anything goes, just that we should feel less contrained to keeping things in the exact same order and position, lest our customers freak out because they can't find the save button.
In short, the style guide was there because there wasn't enough for a real designer to do but still enough that we developers could make things ugly. Now it's even easier to make really ugly stuff, but there's a lot that a real designer can do to make it nice. So hire one. It's worth it.
To be a 'silverlight' developer, is it basically asking for both programming and graphic skills?
Or is it just a matter of implementing the graphics into the silverlight project?
i.e. can you be a silverlight guru and yet not know heads from tails when it comes to graphic design?
To be a silverlight developer, you really only need to know a .NET language, event driven programming, and how to use markup for XAML. It's pretty simple really; the XAML describes UI elements (which can all be handled by the designer) which can then be used in code as a .NET object is created for each UI element.
Knowing graphic design is just a bonus.
If it's anything like Flash (and, from what I understand, the "finished products" can have similar capabilities), you don't necessarily need to be a designer. I'm part-flash developer and I don't have the first idea about anything related to graphic design :)
When I do flash programming, 99% of the work I do is in Actionscript. We have a couple of asset prep guys here who extract the visual elements and add them to a library, which us developers then use in the flash app.
Like I say, this is assuming there are some similarities between Flash and Silverlight (which, for all I know, may not exist). Good luck!
thats the power of xaml, both coder and designer can work in one language ;)
I've done a couple of WPF and Silverlight projects and I have terrible graphic design skills. You can certainly do Silverlight without having that type of skillset.
However, even though you can do some attractive work in those projects without having graphics skills it still very useful to have access to somebody that does have the skills.
For example, adding small animations to glassy-looking buttons can be entirely done by a programmer. But adding attractive backgrounds to form headers (other than gradients) is still better handled by a graphics guy. (In my opinion, of course)
It is not strictly necessary to be a good graphic designer, knowing how to develop .NET applications and XAML is sufficient. However, it's like drawing, all you have to do is to hold a pencil and move your hand, but if you have a good sense for art, the result will be better. Since in Silverlight your potential targets are Internet users and they're used rich user interfacese (maybe Flash based), if you know how to organize your elements, which are the best colors and things like that, your work will be easier.
I have a data structure that represents a directed graph and I'm looking for a good Silverlight visualisation to allow me to navigate from node to node, preferably with some nice animation.
Does anyone know of any good UI controls or frameworks for this kind of display? Even a sample from another field (maybe a social network?). My graphs don't have many nodes so performance won't be an issue.
I've seen the Prefuse library for Java (and Flash) which would be ideal. The "Degree of Interest" visualisation is the kind of thing I'm after, but I can't find anything in Silverlight.
Thanks for any tips.
There's an open source option that's part of the Silverlight Bag-O-Tricks. Check it out and see a demo here (use the first demo link):
http://www.codeplex.com/BagOTricks
There's also a WPF version:
http://j832.com/bagotricks/
Try this one
http://graphlight.codeplex.com/
I made a graph library for Silverlight, that uses Dot as basis.
Please check out: http://dot2silverlight.codeplex.com/
I am making some improvements to support more shapes and types of arrows.
daniela
Must admit I haven't tryed it out yet my self but quickgraph looks promissing
#Rune FS
QuickGraph has no visualisation capabilities, at least not for Silverlight. It just handles the graph data structures and algorithms.
QuickGraph does make it easy to construct a graph and output to Directed Graph Markup Language (DGML) which can be viewed in VS 2010. I just checked in changes to the project and I noticed that it has been designed to be built for inclusion into Silverlight. So perhaps you could use it in conjunction with a silverlight DGML viewer