How to create a road network database (pgrouting) using open-source data and software on Windows by: Adam Stjärnvik In this tutorial we will set up a fully functional, fully open source, road network database. The database could for example be used for shortest path analysis (Dijkstra’s) or to create drive-time areas (Isochrones). Example of a…Read More
Stormwater Management & GIS Along with urban planning, infrastructure mapping, and change detection technology, geospatial solutions for hydrology are just as vital to city officials as they are to environmental engineers. Especially with the increasing prevalence and severity of climate-related natural disasters, it is crucial to have access to dynamic and accurate stormwater mapping. Unlike…Read More
Fundamentals of Rasters and Imagery The seemingly disparate accumulation of images above all have a common element. Can you guess what common thread binds them together? The world of GIS is filled with all different types of data. There is so much data, that it can be quite the task to thoroughly understand and categorize…Read More
A Complete Guide to Free and Offline Mapping Software Having the ability to work on your GIS projects offline, when network access is unavailable or patchy, is hugely beneficial. The world’s most popular geospatial software, ArcGIS, does have a disconnected offline option where you can continue to edit features. ArcGIS is not free, and thus…Read More
GIS for Urban Planning: Making Cities a Better Place to Live GIS is commonly used in urban planning, in fact, it’s an essential tool of the trade. It gives urban planners the ability to assess and analyze the current spatial dynamics of the city, but also plan for the future based on predicted or modelled…Read More
It turns out that satellites are not as passive as you might think, and in the case of earth observation satellites it’s not easy to keep them pointing at earth!
But if you have a map of the stars, a sun tracker, and are able to keep an eye on the eart…
Tutorial: Create and host an interactive web map with Python Interactive maps are a great medium for data visualization because they allow users to explore a dataset for themselves. Most interactive maps have functionality for a user to pan & zoom around a map, click on markers, and get more data from popup windows. Creating…Read More