I want to do something that should be quite simple. I have an airport runway chart that I'd like to overlay an icon of an airplane on later on. The icon will take lat/lon values and be drawn as a ...
I converted ecw file into jpg file with IrfanView, to display the jpg as base layer in openlayers. I understood that I need to create a jgw file to display the jpg file. I found this example: ...
I'm trying to tackle a web GIS problem and need to figure out the best strategy. I have a map with 30,000 cells on it forming a grid for the province of Alberta. I have a list of data points for ...