IGIS Tech Notes describe workflows and techniques for using geospatial science and technologies in research and extension. They are works in progress, and we welcome feedback and comments below.

I'm trying to reproject the projection either the basemap or the sdf but it seems does not work for me. I just want to plot the sdf data to the AGOL map with Python API.

Using existing satellite imagery, drone imagery and the new street-level imagery, participants mapped the island’s building footprint, road network and critical infrastructure on Open Street Map.

IT is very satisfactory to find that at the present time care is being taken that the principles of map projection are being studied as soon as the use of maps is seriously undertaken. At one time ...

By grabbing polygons that describe the shape of various borders and then converting those polygons into triangles with earcut, [Craig] has a part of a country rendered to a screen.

Scientists have a new way to try to represent our spherical planet as a flat picture. It involves printing the map as a double-sided circle.

All map projections distort space, but you can see that the effects are quite different depending on the projection: The choice of projection depends on the purpose of the map. For example, Eckert IV ...