Abstract

Breakline lines are often described as objects that perform on topographic models such as moun-tain, ravine, level... However, when studying cadastral maps, it is also possible to apply Breakline road handling principles to solve some cadastral problems on the numerical model. The main con-tent objects of the cadastral map include land plots and related geographic features such as transport systems, hydrology... The cadastral TIN model is built from the triangle of field measurements. The parcel of land when included in the model is automatically fixed edges and satisfy the condition of the edge of the triangular network is not cut. Thus, triangular networks need to edit and edit to han-dle intersections. DCEL data structure has advantages in data storage chosen to solve this problem in accordance with the proposed algorithm. The paper uses two methods of “Split edge” and “Diagram” of triangle applied Breakline processing. This problem is a preceding problem, creating a premise to solve the problem of creating Topology for regional objects on the cadastral map appli-cation model