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Author: Pygmalion

Fix ‘Route relation contains too much data’ in routino

Fix ‘Route relation contains too much data’ in routino

May 29, 2023May 29, 2023 Pygmalion
When trying to create routino 3.3.3 databases from larger protobuf files in QMapShack we run into the error message ‘Route relation contains too much data’. This can be solved as follows. ... Read More
Android GPX Player

Android GPX Player

May 18, 2023May 18, 2023 Pygmalion
GPX Player is a tool for Android developers that you can use to play GPX tracks on your desktop computer to mock track points on an Android device. Record a GPX or create it with your favorite GIS too... Read More
A Quick Refresher on Logarithms

A Quick Refresher on Logarithms

February 21, 2023March 1, 2023 Pygmalion
Logarithm If we write \[x^2 = 121\] it is obvious that we find \(x\) by taking the square root of 121, but what if the exponent is unknown? \[2^x = 8\] The unknown value of the exponent is called the ... Read More
Georeferencing in QMapShack with QMapTool (video tutorial)

Georeferencing in QMapShack with QMapTool (video tutorial)

May 26, 2022May 26, 2022 Pygmalion
Georeferencing means that the internal coordinate system of a raster image, like a digital map or aerial photo, can be related to a ground system of geographic coordinates. Thus, we can make it appear... Read More
Cartesian Coordinates with matplotlib

Cartesian Coordinates with matplotlib

April 5, 2021March 1, 2023 Pygmalion
In this post we’ll create an orthonormal cartesian plane with x axis, y axis and origin, using matplotlib. If you’re using jupyter first include this line to get inline charts: %matplotlib... Read More
Send a Parcelable to another App on Android

Send a Parcelable to another App on Android

May 17, 2020February 5, 2023 Pygmalion
To send a parcelable to another application for it to be deserialized it is essential that: the class definitions of the class to be serialized are identical in both apps, the packages of the classes ... Read More
OpenTopoMap Viewer for Android

OpenTopoMap Viewer for Android

November 29, 2018 Pygmalion
OpenTopoMap renders topographic maps from OSM and SRTM data. The style is based on German government maps, with a focus on landmarks and contrasting map colors. This new FOSS Android viewer uses osmdr... Read More
A Vertical Slider in HTML/JS/CSS

A Vertical Slider in HTML/JS/CSS

January 7, 2018January 9, 2018 Pygmalion
A while ago my colleagues and I needed a slider control on a web dashboard. A team of students was assigned to build the entire UI, but they did not quite succeed. A third party front-end developer ev... Read More
Classic Frogger with libGDX

Classic Frogger with libGDX

January 14, 2017March 7, 2017 Pygmalion
Roger Engelbert’s excellent tutorial on building a classic Frogger clone with libGDX appears to have gone offline. A couple of months ago I based my own clone on this. It definitely needed some ... Read More
Sliding Toggle Button on Android (2)

Sliding Toggle Button on Android (2)

December 24, 2016 Pygmalion
The sliding toggle button has been modernized. It has finally been migrated to the Gradle build system and it targets recent API levels now. It has also been added to jcenter, so you can simply add it... Read More
A Radar Chart using MPAndroidChart

A Radar Chart using MPAndroidChart

December 2, 2016January 26, 2018 Pygmalion
I’m using the MPAndroidChart library (3.0.0) to represent psychometric personality test results in a radar chart (AKA spider chart or cobweb chart). Since the documentation I found on this was e... Read More
Big Five Personality Traits Android App

Big Five Personality Traits Android App

November 4, 2016January 7, 2018 Pygmalion
The Big Five Android app is available for testing. You are invited to join here: https://play.google.com/apps/testing/de.nitri.bigfive This version of the Big Five personality traits model administers... Read More
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Recent Posts

  • Fix ‘Route relation contains too much data’ in routino
  • Android GPX Player
  • A Quick Refresher on Logarithms
  • Georeferencing in QMapShack with QMapTool (video tutorial)
  • Cartesian Coordinates with matplotlib

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Recent Comments

  • georges younes on Android Gauge View
  • Elias Younes on Android Gauge View
  • prathiv on Sliding Toggle Button on Android (1)
  • technozu on Controlling the Pi Rover over HTTP
  • Steen Albion on OpenTopoMap Viewer for Android

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