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New Course: Mobile GIS and Mapping Applications with Leaflet

Mobile GIS and Mapping Applications with Leaflet

This course is available now on Udemy.com. It will show you how to create a mobile specific mapping application using Leaflet.js including

  • Formatting your web application for mobile device screens
  • Understanding touch screens and adapting your web app for them
  • Making your web app look and feel like a native application
  • Detecting if the user is using a mobile device
  • Detecting if the user is online or not
  • Getting the most out of geolocation
  • Adding simple charts to your application
  • Using web storage to save the state of your application
  • Using web storage to store local versions of vector data
  • Using the Application Cache API to load a local version of your application for off-line use
  • Creating custom base maps with QGIS and QTiles
  • Adding custom base maps to the application cache for offline use

Continue reading “New Course: Mobile GIS and Mapping Applications with Leaflet”

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Adding Legends to your Leaflet Web Map

I’ve just added a bonus lecture to my course on client side programming with Leaflet.  I had a student ask about creating legends for Leaflet maps and I agreed that this was an important missing piece that I had neglected in the main part of the course. I want this course to be comprehensive and so my intention is to continue adding and updating content as needed to provide the best value for my students. Continue reading “Adding Legends to your Leaflet Web Map”

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Spatial analysis in Leaflet with Turf.js (Part 3 – Line intersection)

In this video I demonstrate how to use  Turf.js to  return the intersection of lines and polygons.  There is not a straightforward way to perform this analysis in Turf.js but Turf.js is better thought of as a toolbox than a packaged solution. And turf.js does provide a number of tools that can be used in conjunction to perform this analysis. Continue reading “Spatial analysis in Leaflet with Turf.js (Part 3 – Line intersection)”

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Leaflet Basemaps

One of the reasons to use Leaflet as your JavaScript mapping API is the large number of basemaps available.

This includes very useful basemaps, showing streets, topography, cities, borders, aerial imagery, etc. that you can overlay your data on.

There are also a number of fun and artistic basemaps available, such as the heavy metal themed Spinal Map, artistic water color maps, old-timey pioneer themed maps, and others.

You can see a live version of about 20 of these basemaps at https://millermountain.com/basemap/.

Continue reading “Leaflet Basemaps”

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Do I need to know how to code to be a GIS professional?

The short answer is no. But it will help you more than you can imagine. The GIS world doesn’t need everyone to be coders. Most GIS software is sufficiently complex that one could easily spend their entire careers working with one program and never use all of it, let alone have to improve on it.  It would certainly be possible to specialize in a specific aspect of GIS or a specific type of analysis and never learn to write your own code.  If the thought of programming sends tremors of fear down your spine, fear not. You will always be needed. Continue reading “Do I need to know how to code to be a GIS professional?”