scholarly journals Harmonising the OGC Standards for the Built Environment: A CityGML Extension for LandInfra

2019 ◽  
Vol 8 (6) ◽  
pp. 246 ◽  
Author(s):  
Kavisha Kumar ◽  
Anna Labetski ◽  
Ken Arroyo Ohori ◽  
Hugo Ledoux ◽  
Jantien Stoter
Keyword(s):  
Built Environment ◽  
Data Model ◽  
Markup Language ◽  
Application Domain ◽  
Software Support ◽  
Geography Markup Language ◽  
Domain Extension ◽  
Open Geospatial Consortium ◽  
Civil Engineering Infrastructure ◽  
Ogc Standards

The relatively new Open Geospatial Consortium (OGC) standard LandInfra documents in its data model land and civil engineering infrastructure features. It has a Geography Markup Language (GML) implementation, OGC InfraGML, which has essentially no software support and is rarely used in practice. In order to share the benefits of LandInfra (and InfraGML) with a wider public, we have created the Infra Application Domain Extension (ADE), a CityGML ADE that allows us to store LandInfra features in CityGML. In this paper, we semantically map LandInfra to CityGML, describe our ADE, and discuss a few used cases where our ADE can be useful for applications for the built environment. We also provide software to automatically convert datasets from InfraGML to CityGML (and our ADE), and vice versa, as well as to validate them, which will help practitioners generate real-world InfraGML datasets.

scholarly journals GMZ: A GML COMPRESSION MODEL FOR WEBGIS

2017 ◽  
Vol IV-2/W4 ◽  
pp. 9-13
Author(s):  
A. Khandelwal ◽  
K. S. Rajan
Keyword(s):  
Lossless Compression ◽  
The Internet ◽  
Markup Language ◽  
Geography Markup Language ◽  
Compression Model ◽  
Open Geospatial Consortium ◽  
Point Line ◽  
Simple Features ◽  
Good Compression

Geography markup language (GML) is an XML specification for expressing geographical features. Defined by Open Geospatial Consortium (OGC), it is widely used for storage and transmission of maps over the Internet. XML schemas provide the convenience to define custom features profiles in GML for specific needs as seen in widely popular cityGML, simple features profile, coverage, etc. Simple features profile (SFP) is a simpler subset of GML profile with support for point, line and polygon geometries. SFP has been constructed to make sure it covers most commonly used GML geometries. Web Feature Service (WFS) serves query results in SFP by default. But it falls short of being an ideal choice due to its high verbosity and size-heavy nature, which provides immense scope for compression. GMZ is a lossless compression model developed to work for SFP compliant GML files. Our experiments indicate GMZ achieves reasonably good compression ratios and can be useful in WebGIS based applications.

Distributed Geospatial Data Management for Entomological and Epidemiological Studies

2013 ◽  
pp. 1773-1793
Author(s):  
Hugo Martins ◽  
Jorge G. Rocha
Keyword(s):  
Data Management ◽  
Data Model ◽  
Epidemiological Studies ◽  
Geospatial Data ◽  
Database Integration ◽  
Model Data ◽  
Unique Data ◽  
Semantic Translation ◽  
Open Geospatial Consortium ◽  
Ogc Standards

Since the authors were able to design all the supporting software, all syntactical interoperability was guaranteed by the use of Open Geospatial Consortium (OGC) standards. The semantic interoperability was assured by design, by developing a unique data model. Data invariants are guaranteed either by the interface, with validation routines written in Javascript, or by the data constrains included in the database. Integration and interoperability with other BT programs might require some additional effort, but all the necessary semantic translation could be encapsulated into the WFS component.

Distributed Geospatial Data Management for Entomological and Epidemiological Studies

2012 ◽  
pp. 220-240
Author(s):  
Hugo Martins ◽  
Jorge G. Rocha
Keyword(s):  
Data Management ◽  
Data Model ◽  
Epidemiological Studies ◽  
Geospatial Data ◽  
Database Integration ◽  
Model Data ◽  
Unique Data ◽  
Semantic Translation ◽  
Open Geospatial Consortium ◽  
Ogc Standards

Since the authors were able to design all the supporting software, all syntactical interoperability was guaranteed by the use of Open Geospatial Consortium (OGC) standards. The semantic interoperability was assured by design, by developing a unique data model. Data invariants are guaranteed either by the interface, with validation routines written in Javascript, or by the data constrains included in the database. Integration and interoperability with other BT programs might require some additional effort, but all the necessary semantic translation could be encapsulated into the WFS component.

scholarly journals Modeling Turkey National 2D Geo-Data Model as a CityGML Application Domain Extension in UML

2016 ◽  
Vol 3 (3) ◽  
pp. 1-10 ◽  
Author(s):  
Serpil Ates Aydar ◽  
Tahsin Yomralıoğlu ◽  
Elif Demir Özbek
Keyword(s):  
Data Model ◽  
Application Domain ◽  
Domain Extension

scholarly journals Documentation of cultural heritage monuments with CityGML: an application for ancient theatres

2020 ◽  
Vol 1 ◽  
pp. 1-16
Author(s):  
Eleni Gkadolou ◽  
Poulicos Prastacos ◽  
Thanos Loupas
Keyword(s):  
Cultural Heritage ◽  
Data Model ◽  
Special Focus ◽  
Application Domain ◽  
Domain Extension ◽  
Geographic Data

Abstract. The scope of this research is to identify the concepts that describe cultural heritage monuments and model them with CityGML. CityGML is the most popular data model for storing and sharing semantic 3D geographic data and there is an increasing interest in its use in the Cultural Heritage field. An Application Domain Extension that covers the most important concepts for describing monuments with special focus on the ancient theatres is developed. The INSPIRE data model is reviewed and its integration with CityGML is discussed. Following the proposed extension, a CityGML model is constructed for the ancient theatre of Hersonissos in Crete. To visualize the model, it is transformed using the Generics approach.

scholarly journals Constructing the CityGML ADE for the Multi-Source Data Integration of Urban Flooding

2020 ◽  
Vol 9 (6) ◽  
pp. 359
Author(s):  
Jie Shen ◽  
Jingyi Zhou ◽  
Jiemin Zhou ◽  
Lukas Herman ◽  
Tomas Reznik
Keyword(s):  
Data Integration ◽  
Meteorological Data ◽  
Unified Modeling Language ◽  
Prototype System ◽  
Markup Language ◽  
Urban Flooding ◽  
Application Domain ◽  
Data Types ◽  
Domain Extension ◽  
Source Data

Urban flooding, as one of the most serious natural disasters, has caused considerable personal injury and property damage throughout the world. To better cope with the problem of waterlogging, the experts have developed many waterlogging models that can accurately simulate the process of pipe network drainage and water accumulation. The study of urban waterlogging involves many data types. These data come from the departments of hydrology, meteorology, planning, surveying, and mapping, etc. The incoordination of space–time scale and format standard has brought huge obstacles to the study of urban waterlogging. This is not conducive to interpretation, transmission, and visualization in today’s network environment. In this paper, the entities and attributes related to waterlogging are defined. Based on the five modules of urban drainage network, sub basin, dynamic water body, time series, and meteorological data, the corresponding UML (Unified Modeling Language) model is designed and constructed. On this basis, the urban waterlogging application domain extension model city waterlogging application domain extension (CTWLADE) is established. According to the characteristics of different types of data, two different methods based on FME object and citygml4j are proposed to realize the corresponding data integration, and KML (Keyhole Markup Language) /glTF data organization form and the corresponding sharing method are proposed to solve the problem that the CTWLADE model data cannot be visualized directly on the web and cannot interact in three-dimensional format. To evaluate the CTWLADE, a prototype system was implemented, which can convert waterlogging-related multi-source data in extensible markup language (XML) files conform. The current CTWLADE can map the data required and provided by the hydraulic software tool storm water management model (SWMM) and is ready to be integrated into a Web 3D Service to provide the data for 3D dynamic visualization in interactive scenes.

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