Commission IV/8 KEY WORDS: building energy efficiency, energy balance, CityGML, 3D data model, OGC standard, multi-scale approach
ABSTRACT:This paper illustrates the results of a research focused on the development of a multi-scale geodatabase designed to store the data needed to measure the energy buildings performance of buildings to be used for the planning activities of local administrations. Due to the great complexity of the application domain, the proposed data model has been structured in three main components: the building/heating system, the users, and the environmental/territorial context. Furthermore the characteristics of these components and of their mutual relationships have led to the decision to use geometries in the 3D space. The applications also need a significant semantic content, expandable with customized elements and properties. These peculiarities directed us to select the OGC CityGML standard format as the best choice for the data model. This choice has been tested with positive results.* Corresponding author. This is useful to know for communication with the appropriate person in cases with more than one author.International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXVIII-4/C21
ABSTRACT:Automated cartographic generalization has been a challenging research field for over 30 years; nowadays thanks to the continuous research is becoming a concrete opportunity to increase the speed of map sets production and maintenance. As some National mapping agencies are working in this direction, in Italy automated cartographic generalization is still a research field, although recent researches show its applicability to the Italian data models for the production of maps. This paper illustrates how the production of cartography in Italy is organized and the situation of the research on generalization in the country. The paper reports the most interesting results of the research, especially those brought by the on-going CARGEN project, that testify how automated cartographic generalization could play a key role also in the Italian cartographic processes.
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