I’m starting the “Climate Analysis for Building Design” using R language(Python is also a good choice) . R is a free software environment for statistical computing and graphics. The goal of the project is to analyse the climate data under various criteria to guide the choosing of different strategy for building design in different climatic environment. There should be a GUI for the settings so an integration of R and C++ is necessary. Rcpp provides a powerful API on top of R, permitting direct interchange of rich R objects (including S3, S4 or Reference Class objects) between R and C++. The RInside package provides C++ classes that make it easier to embed R in C++ code — on either Linux, OS X or Windows. A web application is also under considering.