Summer is calling: "Wassertemperatur in Österreich"

Wassertemperatur in Österreich - 4 Messwerte
Wassertemperatur in Österreich - 260 Messpunkte
Wassertemperatur in Österreich - Mit umliegende Badeseen
Summer is calling!

Therefore I created a new app that visualizes the water temperatures of all Austrian lakes, rivers and reservoirs on Google maps.

It provides information about:

Water temperatureWater quality (ranging from excellent to bathing ban)Water clarity / depth of sightMicrobes / germs in the water

 

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Citybikes: Radfahren in Wien

Citybikes: Radfahren in Wien Available for iOS, Android & Web
Citybikes Vienna for iOS & Android

This app helps you ride through Wien, the city of Vienna, in an ecofriendly way! Save yourself from standing in traffic jams or finding parking spaces by jumping on one of the many bikes in Vienna.Whether you want to meet with your friends in the city, plan a sightseeing tour, or simply prefer to take the bike instead of public transport, this app always provides you with up-to-date data about available bikes near you. This allows you to plan your route accordingly and simplifies traveling by bike through Vienna.Just take a look at the app and you find everything at a glance:☆ available bicycles and parking spaces☆ 121 Citybike Wien stations with usage indicators☆ locate your position on the map and find the nearest bike stations☆ real-time information and updatesOn top of that, you save CO2 with every ride you take by bicycle instead of the car!Did you notice? There's also a Citybike station in Salzburg! I added a marker on the map to create awareness for this awesome project!

Download Citybike Wien:iOS: https://itunes.apple.com/app/apple-store/id1387165265?mt=8Android: https://play.google.com/store/apps/details?id=tech.pertiller.citybikewienWeb: https://citybikewien.appGeneric App-Link: https://citybikewien.app/get
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The Evolution of Bitcoin Monitor: Crypto Coin Check

Crypto Coin Check v1.0

I'm happy to share with you my broader vision of Bitcoin Monitor, my new app "Crypto Coin Check".

Crypto Coin Check expands on the concept of real-time price monitoring across exchanges. The brand new feature called "Cross Coin Check" gives you a broad insight into market developments and allows you to compare Bitcoin (BTC), Ethereum (ETH), Ripple (XRP), Bitcoin Cash (BCH), Litecoin (LTC) and IOTA (MIOTA) among each other. For this purpose, all exchange rates are continuously calculated and related with each other. It is important for me to emphasize that the prices are obtained directly and unaltered by the exchanges! That means, the exchange rates are not manipulated (keyword: Coinmarketcap).

You can downlod the app completely free and without ads from the App Store and Google Play:

iOS: Download Crypto Coin Check on the App StoreAndroid: Get Crypto Coin Check on Google PlayWeb: CryptoCoinCheck.BitcoinMonitor.today.
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Bitcoin Monitor with Real-Time Prices


Bitcoin Monitor

I created a little app for comparing cryptocurrency prices from Kraken, Coinbase, GDAX, Bitfinex, Bitstamp, Bitpanda & Coinfinity! It has support for Bitcoin, Ethereum, Bitcoin Cash & Litecoin with real-time exchange rates in Euro, Dollar & GBP. Make the best buy decision with real-time monitoring of Bitcoin prices across exchanges, visualization, lowest price detection, arbitrage potential calculation, change & volatility monitor and performance check between cryptocurrencies (BTC, ETH, BCH, LTC) with prices for €, $ and £.

 

Tickers / Pairs

You can choose between the following coins & pairs:

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On the subject of RxJS: multiple subscribers to a single Observable

A while ago, I answered this question on StackOverflow regarding multiple subscriptions to an RxJS Observable.

As with everything else of RxJS, the answer is simple and elegant.

But first, let's start with the actual problem. Here's the author's question:

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Browser Market Share in Austria

Click to open interactive visualization

I recently took a look at the Austrian Web Analysis' statistics of browser market share in Austria, which provides an evaluation of page impressions of participating Austrian websites (see link) on a monthly basis.

 

Why does it interest me?

I’ve been strongly shifting my focus to modern web apps in the past years. These apps require a modern browser. Unfortunately, Microsoft's Internet Explorer - the browser that used to have the highest market share - didn't quite contribute to a wide and fast adoption of HTML5, but rather the opposite. Therefore, I'm rather fond of alternative browsers.

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Debuggable Browser for Android

Remote debugging the Android native browser
Google Play Store
Debugging the Android native browser

A couple of months ago, I created a small but handy Android app that enables developers to run their web apps inside the Android stock browser while allowing them to debug and inspect it with the Chrome Developer Tools.

So what is it?

Just a debug-enabled WebView (learn more), allowing you to use Chrome Developer Tools to inspect and debug your web app while its running on your device (Android 4.4 or higher).

What's the use of it?

When I'm developing a mobile web app, I frequently encounter bugs that only occur on real devices. Therefore, it's hard to reproduce and debug such defects within a desktop browser.

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Award for outstanding achievements

Kapsch Award David Pertiller

Photo rights: Moni Fellner

In 2014, I was able to complete both of my Master's degrees with highest honor and even got an award by Kapsch - one of Austria's most successful technology corporations - in recognition of the high quality work and outstanding achievements.

 

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Speaker at PTC Live Stuttgart 2013

I'm happy to announce that I'm a speaker at the PTC Live conference in Stuttgart this November.

The talk is about new visualization concepts for software projects which utilize PTC's Integrity - you better don't miss it! ;)

More info about the speech attainable at the conference website here: Vortragsdetails: Neue Visualisierungskonzepte für PTC Integrity Software-Projekte.

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Fixing: Error executing command 'ant' on Mac OS X 10.9 Mavericks

Today I stumbled over an unexpected problem when trying PhoneGap/Cordova with Mac OS X 10.9 Mavericks. Building a project for iOS went just fine, but building for Android wasn't without some guesswork.

After installing Android 4.2.2 via the Android SDK Manager (I had to use the older API v17 since it wasn't compatible with a newer one) and adding the PATH environment variables for the SDK's platform-tools and tools, I thought I was ready to take off by running the command: phonegap run android.

Nevertheless, I got the following error:

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Request: Data of Business Projects for Master Thesis

In my master thesis, I'm aiming for a better management of complexity of business projects by dedicated and context-driven visualizations. These visualizations are going to be substantially different from what typical dashboard visualization of ALM/PLM tools offer.

The purpose of this is to give a better overview of what's going on in extensive projects as well as a unique understanding of the factors contributing and leading to the project's state.

If you're curious about this and work with ALM/PLM tools or if you're for example a developer / product owner / manager of a project utilizing an ALM System like Microsoft's Team Foundation Service (TFS), I'd be happy to use your project's metrics (also anonymized) for my research. Your data will be treated confidentially.

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Up and running!

Up-And-Running

Welcome to my new website!

The good thing is, I took the time and jump-started this site during a week off in February 2013. I always thought about having a website on my own since this seems mandatory these days anyway.

But here's the bad thing about it ... there are 2 specific reasons that always prevented me from having my own website and will still prevent me from maintaining it the way I would like:

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