I am creating an application that visually displays world regions, e.g. to place markers within an administrative region.Does a dataset exist with geometrical or geographical (long/lat) descriptions of the world's current country borders (and possibly other administrative divisions)?  Ideally the dataset would be in a format that I could easily generate border images of the size that I require.
Dataset with coordinates of borders of countries
data;image manipulation;map
http://gadm.org/ seems to have exactly what you want (and more).GADM database of Global Administrative AreasGADM is a spatial database of the location of the world's administrative areas (or adminstrative boundaries) for use in GIS and similar software. Administrative areas in this database are countries and lower level subdivisions such as provinces, departments, bibhag, bundeslander, daerah istimewa, fivondronana, krong, landsvun, optina, sous-prfectures, counties, and thana. GADM describes where these administrative areas are (the spatial features), and for each area it provides some attributes, such as the name and variant names...