George Lantz

In this article we will look at how polylines can be added to World Wind Java SDK. Polylines are used to represent routes or tracks on your map. A polyline is made up of a list of point coordinates and a line is drawn between each point to create the full polyline. There are actually two different types of Polylines in WWJ. We will take a look at both of them. Note: this tutorial is just to get you pointed in the right direction. There are probably much more efficient ways of handling this. This is just a starting place. Read the rest of this entry »

Want your web surfing to remain anonymous to the rest of the internet? Using TOR can help anonymize your applications that use TCP protocol, from instant messaging to web browsing. TOR aims to prevent eavesdropping and traffic analysis by routing your data packets randomly through several servers. The beauty is that no observer at any single point can tell where the data came from or where it's going. Read the rest of this entry »

I am just getting started on an application that uses the World Wind Java SDK. As I learn more about it I will post tips and lessons, more for myself as a reminder of how I did something, but maybe someone else will find use of them. This lesson will be a very simple Hello World. I will explain how to get the WWJ SDK going in NetBeans in this article. Read the rest of this entry »

As promised I have finished the ruby polyline decoder. This class will take an encoded polyline and decode it returning an array of latitude and longitude values. This one gave me a headache. Hope you can find use of it. Please take time to tell me the projects you are using it for, I'm just nosy. Read the rest of this entry »

I have been researching map data to display maps inside the desktop application frontend for nomadexplorers.com. I hit pay dirt. I found several NASA data sources. It's got me thinking about other possibilities for future additions to nomadexplorers.com and other fun projects. Here are some notes one a few of the data sources I have found. Read the rest of this entry »

I wrote this translation of the PolylineEncoder.js by Mark McClure because I needed a way to create encoded polylines for Google maps. When I first started my project - http://nomadexplorers.com.

I tried using an existing ruby translation of PolylineEncoder.js. It was giving me some errors when I tried using it and it only took an array of coordinates. For my needs I needed the class to accept an array of objects. This seems a bit more elegant to me. Also, in the notes that where provided in the class comments, it appeared to have a bug that would incorrectly encode the second point. So instead of trying to debug and rewrite their code, I just decided to do my own implementation. Read the rest of this entry »