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Clustering Markers On Leaflet Maps

So you’re creating an interactive map using Leaflet and have diligently added your 8107 markers to the map. Uh-oh. Definitely slow and pretty much doesn’t provide a user experience. What do we do now? There’s a great plugin for Leaflet called Leaflet.markercluster by Dave Leaver which will save us. This plugin clusters the markers and […]

     

Qt Patches: QGraphicsView & QImageWriter

QGraphicsView Two and a half years ago I wrote about a UX bug with QGraphicsView where it would reset the selection in the view if you tried to extend it with a rubberband selection. I have been using those changes in the version of Qt I maintain for my software. I finally took the time […]

     

Extending Selections In QGraphicsView

Overall, the Qt library has done a fantastic job of maintaining relatively simple interfaces with well-named functions that do what they say they’re going to do [unlike MFC for example] and of having objects react the way you would expect them to without much modification. I’ve used it for several cross-platform Windows/Mac OS X/Linux applications […]

     

Point Cloud Library on Mac OS X: A Build Diary

I’ve been using and contributing to various open source projects for almost 20 years. I love the fact that we can leverage each other’s work and help other developers save time instead of reinventing the wheel or fighting the same problem a thousand times over. Open source tools and libraries make what I do possible.  […]