Hi, I am trying to understand the goemetry libraries. I find the currently under review GGL very useful for non-cartesian geometries (and maybe cartesian too!) but I don't understand what was the rationale for accepting GTL, which is a library mainly used in chip design. The reviews for GTL clearly stated that the library was not appropiate for GIS-like applications as its focus is mainly 2D. So, can anybody explain how these two libraries fit together. I see in which cases GGL will be useful but I am rather confused with Boost.Polygon, as it's optimized for VLSI design (as stated in the BoostCon paper and by some of the reviewers) Did someone decide that it was not possible to have a single GENERIC GEOMETRY library and we should have two ? thanks