Just for fun, I thought it might be interesting to bring some of the ideas of the old game show “Press your Luck” into an interactive web map.
One of the core ideas in mapping is the difference between vector and raster layers. For vector layers, the actual geometry data is stored and passed around - for example a point might store the latitude and longitude. For tiled raster layers, the data is stored as images on the server, and those images are displayed as the layer.
Web Mercator is the standard for online interactive maps. But what if we want to use the EPSG 4326 (WGS 84) spatial reference?
Open Data and Maps
World Countries Centroids
St. Louis Lambert International Airport Data
MLB Spring Training Stadiums
St. Louis Parks
NAVA Annual Meetings