Properties of n-dimensional triangulations
Computer Aided Geometric Design
The synthesis of solids bounded by many faces
Communications of the ACM
Three Dimensional Applications in Geographical Information Systems
Three Dimensional Applications in Geographical Information Systems
Localized set operations for solid modeling
SIGGRAPH '83 Proceedings of the 10th annual conference on Computer graphics and interactive techniques
A two-dimensional interpolation function for irregularly-spaced data
ACM '68 Proceedings of the 1968 23rd ACM national conference
Short note: A program for creating CAD-based solid models from triangulated surfaces
Computers & Geosciences
Sheet 280-Fossombrone 3D: A study project for a new geological map of Italy in three dimensions
Computers & Geosciences
3D modeling using geognostic data: The case of the low valley of Foglia river (Italy)
Computers & Geosciences
Wire frame: A reliable approach to build sealed engineering geological models
Computers & Geosciences
An effective method for 3D geological modeling with multi-source data integration
Computers & Geosciences
Development of urban geology information system based on MapGIS
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
GSIS: A 3D geological multi-body modeling system from netty cross-sections with topology
Computers & Geosciences
GIS-based data model and tools for creating and managing two-dimensional cross sections
Computers & Geosciences
Modeling and visualizing borehole information on virtual globes using KML
Computers & Geosciences
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Solid models of geologic structures are useful tools for geologists and engineers. Solid models completely and unambiguously define the stratigraphy for the site being modeled, including complex boundaries and embedded seams. Past research has focused on the "set operations" approach to create solid models. Whereas the set operations approach is flexible, it requires significant user intervention and is therefore difficult to use. A simple approach for generating solid models from borehole data, called the horizons method, is presented. The horizons method can be used to build solids directly from borehole data with minimal user intervention. The user first assigns horizon ids to each of the borehole contacts. The horizon ids represent the depositional sequence and increase from the bottom to the top of the boreholes. The solids are then built by interpolating each of the surfaces defined by the horizons and extruding the surface into a solid. In each case, the solid is built by extruding the solid from the current surface down to the uppermost surface defined by the top of all previous horizons. In cases where more control over the resulting solids is necessary, the horizons method can be easily modified to honor user-defined cross-sections in addition to the borehole data.