Approximation due to its inherent complexity and the vast volume of information
involved. This thesis explores the use of compactly supported radial basis functions
(CSRBF) as an innovative approach to effectively approximate surfaces derived from
large, scattered geo data. The research begins by addressing the limitations of global radial
basis functions (RBF), which often struggle to ensure continuity and smoothness in surface
reconstruction. By leveraging CSRBF, which possess localized influence, this study
proposes a meshless framework that enhances computational efficiency while maintaining
high precision in surface approximation. Experimental results demonstrate that CSRBF
with a lower degree of continuity are more suitable than other RBF methods, particularly
global ones, due to the geometric conditions imposed on the data.