Results 11 to 20 of about 7,960 (210)
An Equatorial Hemispheric Barrier Shapes the Diversification of Migratory Belenois Butterflies. [PDF]
Mol EcolABSTRACT Biogeographic barriers are typically considered prominent geographic features that block or severely restrict dispersal and gene flow. However, mating barriers can also emerge within continuous suitable habitats, driven by ecological or behavioural constraints. Migratory insects show an extraordinary capacity to traverse vast geographic ranges,
Janiczek A +13 more
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Research on 3D modeling method of complex rock strata surfaces based on unit divisio
Gong-kuang zidonghua, 2017 In view of the problem that existing 3D modeling method of rock strata surfaces does not systematically consider the construction of 3D modeling of complex rock strata surfaces with geological conditions such as fault and collapse column, horizontal ...
LIU Yong, CUI Hongqing
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A precise TIN clipping algorithm for the digital mining design of the opencast coal mine
PLoS ONE, 2023 The triangulated irregular network (TIN) clipping algorithm is one of the vital algorithms for the digital mining design of opencast coal mines based on the geological digital elevation model (DEM) described by TIN.
Jingchang Zhao +3 more
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Design of adaptive unstructured grids using differential methods
Вестник КазНУ. Серия математика, механика, информатика, 2018 Adaptive generation of computational grids can improve the efficiency of mathematical modeling by increasing the accuracy of numerical approximations. The paper describes a method for constructing unstructured grids with adaptation based on differential ...
Olzhas Nurkonysuly Turar +1 more
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A Contour Line Group Simplification Method Based on Classified Terrain Features
ISPRS International Journal of Geo-Information, 2023 Contour line group simplification methods can effectively preserve terrain features during map making and producing. This process involves two main steps, namely terrain feature line extraction and contour bend selection.
Yuanfu Li +4 more
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ISPRS International Journal of Geo-Information, 2018 Extracting the split line of narrow and long patches is important for the generalization of land-use thematic data. There are two commonly used methods for extracting the split lines: One is based on Delaunay triangulation and the other is based on ...
Chengming Li +4 more
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Kinetic and Dynamic Delaunay tetrahedralizations in three dimensions [PDF]
, 2003 We describe the implementation of algorithms to construct and maintain three-dimensional dynamic Delaunay triangulations with kinetic vertices using a three-simplex data structure.
Aurenhammer +36 more
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Fully Dynamic Constrained Delaunay Triangulations [PDF]
, 2004 We present algorithms for the efficient insertion and removal of constraints in Delaunay Triangulations. Constraints are considered to be points or any kind of polygonal lines. Degenerations such as edge overlapping, self-intersections or duplicated points are allowed and are automatically detected and fixed on line.
Marcelo Kallmann +2 more
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Texture-Cognition-Based 3D Building Model Generalization
ISPRS International Journal of Geo-Information, 2017 Three-dimensional (3D) building models have been widely used in the fields of urban planning, navigation and virtual geographic environments. These models incorporate many details to address the complexities of urban environments.
Po Liu, Chengming Li, Fei Li
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IEEE Access, 2019 Geometric algorithms rely on predicates, among them, the 2D and 3D orientation and incircle tests are important ones. Shewchuk's adaptive floating-point predicate is a well-known C implementation, which is embedded in many computational geometry ...
Meng Qi, Ke Yan, Yuanjie Zheng
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