English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Topological relations are fundamental for qualitative description, querying and analysis of a 3D scene. Although topological\udrelations for 2D objects have been extensively studied and implemented in GIS applications, their direct extension to 3D is very\udchallenging and they cannot be directly applied to represent relations between components of complex 3D objects represented by 3D\udB-Rep models in R3. Herein we present an extended Region Connection Calculus (RCC) model to express and formalize topological\udrelations between planar regions for creating 3D model represented by Boundary Representation model in R3. We proposed a new\uddimension extended 9-Intersection model to represent the basic relations among components of a complex object, including disjoint,\udmeet and intersect. The last element in 3*3 matrix records the details of connection through the common parts of two regions and the\udintersecting line of two planes. Additionally, this model can deal with the case of planar regions with holes. Finally, the geometric\udinformation is transformed into a list of strings consisting of topological relations between two planar regions and detailed\udconnection information. The experiments show that the proposed approach helps to identify topological relations of planar segments\udof point cloud automatically

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

EXTENSION OF RCC TOPOLOGICAL RELATIONS FOR 3D COMPLEX OBJECTS COMPONENTS EXTRACTED FROM 3D LIDAR POINT CLOUDS