e-ISSN 2231-8542
ISSN 1511-3701

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Construction of 3D-Terrain Model from Contour Lines using Parameterized B-Spline ruled Surface

Muhammad Ammad and Ahmad Ramli

Pertanika Journal of Tropical Agricultural Science, Volume 28, Issue 3, July 2020

Keywords: 3D-terrain model, B-spline, contour lines, parameterization method, surface reconstruction

Published on: 16 July 2020

In this paper work, three-dimensional terrain models were reconstructed from two-dimensional contour lines. Firstly, spatial curves were generated from contour lines using parameterized cubic B-spline curve interpolation. Then surfaces were constructed by using B-spline ruled surface. In the reconstruction process, some issues such as keyholes and branching may arise. Therefore, we propose a method that handles the branching object to construct a bilinear patch by following the proposed data point’s extraction algorithm. We also solved keyholes issues by retaining the same knot vector condition on B-spline ruled surface. Results are also demonstrated for models with branching and without branching.

ISSN 1511-3701

e-ISSN 2231-8542

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