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 page »
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Hello World Wind – Basic World Wind Java SDK Tutorial
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 page »
Ruby Polyline Decoder For Google Maps
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 page »
Mapping Data
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 page »
Ruby Polyline Encoder for Google Maps
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 page »
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