Tag: GIS

4 of My QGIS Mapping Mistakes

4 of My QGIS Mapping Mistakes

In my last post, I gave a really quick overview of how I used Quantum GIS (QGIS) to build some custom color-coded maps. That blog post came at the cost of a week or so of missteps. So, rather than making you learn from your own mistakes, I’ll lend you some of mine. 1. Choose […] 

Coloring Maps With QGIS

Coloring Maps With QGIS

Maybe it’s just me, but I think maps are cool. There’s just something satisfying about seeing the whole country spread out in front of you . . . and then scribbling all over it. Recently, I was delving into some business numbers and began to get the sense that if I could plot the numbers […] 

The Sweet Java Topology Suite – Part II

In a previous post, we described how we started using the Java Topology Suite (JTS) to manipulate postal/zip code polygons that we are viewing in an application built on MapQuest’s Flex API. Since then, we have added the ability to join multiple postal codes into territories. Sometimes over 1,000 postal code polygons will be combined […] 

Java Topology Suite — Sweet!

We have been building a sophisticated mapping application in Adobe Flex that enables our internal advisors for Endorsed Local Providers (ELPs) to visualize the regions that our partners cover throughout the country. We’re using MapQuest’s Enterprise API, which has a pretty robust ActionScript 3 library along with a nice Java library. We wanted to be […] 

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