flex

It’s that time again. Mountain View

Posted on by Tony Georgiev

Hello!
First of all I’d like to wish Happy New Year!
I have a present for you (well it’s actually for me but you can benefit)
Last winter I went to a ski/snowboard sale, with no particular reason, and whatta you know I got home with a snowboard, pair of shoes, bindings and everything. The next day I was already conquering the Vitosha mounatin. That was when I rode snowboard for the first time of my life. And whole season I was so thrilled of how cool is that so whenever I had a chance I went to the mountain to snowboard. So here comes another season, and I will not miss a chance to hop on the lift.
But unfortunately the weather here in Bulgaria is very strange. At new year’s eve the temperature was 12°C when 3 days before that it was -10°C. So to go to the mountain you have to know if the weather there is ok and is it ride-able (able to ride 😛 ). You can always check some websites see what the weather is, other to see web cams of the resorts, but why not have a small application that checks this for you. For that purpose what could be better than an Air application. So I sat one day and decided to create an application showing the weather condition for the next few days, and whether you should go and ride or go and waste time because of the bad weather. Here for all you ski/snowboard/snow/mountain lovers I present you MountainView.

MountainView provides 3-day weather information and live images from webcams for these ski resorts: Vitosha, Bansko, Borovets, Pamporovo. I’d like to thank http://www.snow-forecast.com/ for providing the weather feed, which I personally think is the most correct forecast. I would also like to thank www.skivitosha.com, www.banskoski.com, www.borovets-bg.com, winter.pamporovoresort.com and www.bulgaria-hotels.com for providing maps and webcam images of the resorts.

Download MountainView

So grab it, play with it. Please comment you thoughts
MountainView is created with Adobe Flex. Check out the source code from here

Flex/Flash chart libraries

Posted on by Tony Georgiev

Hey there!

I’ve been developing different Flex applications for some time and recently I am working on a charting component build on Flex. I was using flex data visualization framework, and I loved it. It was very easy to visualize different kind of data, and to create custom components. There were some issues, but you could fix them. Everything good, but this framework isn’t free… That wasn’t a problem for me as I already had a license, a student license for Flex Builder 3 Pro which Adobe kind fully gave me. But friends of mine and colleagues are not able to receive it, so they have the chance either to buy Flex Builder Pro license (which goes with data visualization) or to search for a free alternative

Here I will discuss the 3 best alternatives, from my point of view.

But first let’s see how the Flex data visualization looks like, and how can we use the other libraries to display it like that

And we’re of on the adventure of searching the best Flex/Flash chart library…
Maybe the first result you encounter, when you Google “flash chart” is

  • Open Flash Charts. It is a charting library build on actionscript. As you may see from the examples it is very elegant and easy to set up. It reads JSON data to do the configuration and there are different libraries for JAVA, Python, php that make it easier. There is even a very good extension so that you can use it as a flex component and a charting explorer that you can find here. The good thing is that is easy to display simple charts (well sometimes it’s really tough when you write your own JSON object) and it is very lightweight (only actionscript) The bad is that if you want to change, modify something it’s really hard.

    Here is a simple example of a Line Chart made with Open Flash Charts

  • Axiis I have followed Axiis a long time ago, from the first posts of Thomas Gonzales and Michael VanDaniker but never had the chance to try it until now. It is an open source data visualization framework for Flex based on Degrafa. At first I was a bit confused with all those geometry repeaters, but head on trying it and I saw that it was very easy to configure whatever you like, and it’s very flexible. If you’ve done some work using Flex Data visualization you will find it very easy and intuitive to create your own charts. It is new, still beta but at this stage very popular. It’s free, It’s on google code… what more can you wish for 🙂

    Example of Line Chart created with Axiis

  • Flare is another actionscript library, port of Prefuse for JAVA. Unfortunately I haven’t researched a lot for this framework, but at first sight I found it very complex and not as intuitive as Axiis. Check out the examples to see how complex visualization you can make. It’s great for transitions and effects you can create. It’s advantage over the other two libraries is it’s complexity, but it’s also it’s disadvantage, if I may say. What I mean is, that if you want more complex visualizations you definitely would like to grab Flare, but for other cases when you want just a simple line, bar or pie chart it’s better to choose something else.

    [Example]

I will upload source code if there is interest. See also a comprasion between Flare and Axiis http://www.pathf.com/blogs/2009/05/flare-vs-axiis/ And now which library suits you best?