A simple projection with cairo
At the moment, only orthographic projection is available.
Plots an orthographic projection of a regular latitude-longitude grid with the Cairo library.
A first approach is to draw a cell line by line and remove the part of the line outside the projection. As the border is missing, we can draw a circle.
However, it does not allow for filling the cells, as Cairo needs a closed path. This strategy has been implemented, see the following example :
A video demonstrating the camera movement can be found there