ACM Transactions on Graphics (TOG)
Curves and surfaces for computer aided geometric design
Curves and surfaces for computer aided geometric design
Visualization of complex geological structures using 3-D Bézier construction tools
Computers & Geosciences
D-NURBS: A Physics-Based Framework for Geometric Design
IEEE Transactions on Visualization and Computer Graphics
Enabling scientific workflows in virtual reality
Proceedings of the 2006 ACM international conference on Virtual reality continuum and its applications
3-D symbolization of L-S fabrics as an aid to the analysis of geological structures
Computers & Geosciences
GSIS: A 3D geological multi-body modeling system from netty cross-sections with topology
Computers & Geosciences
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We present software tools and methods applicable to the geological modelling of sparse spatial and structural data within a 3-D digital environment. Free-form surfaces derived from section-style control frames and constrained by field-based structural measurements are employed as partially automated design aids intended to speed up and streamline the 3-D geological model building process. Some design degrees of freedom such as NURBS tension (or weights), knot sequencing and tying surface features are also discussed with examples drawn from spatial and structural data collected in Baffin Island by the Geological Survey of Canada and near-mine exploration data from Canadian mines. Interpolation of field-based structural measurements along the boundary of an unknown surface is also demonstrated. This work is potentially relevant to regional mappers and others dealing with sparse spatial and structural data, and/or conceptual surface modelling.