The problem of the quality of architectural representation, in a dynamic use finalized in web or database publication, represen ts the main theme of the current debate regarding the ways in which to share knowledge between different disciplinary fields. Starting with the surveying operations with the laser scanner technology, it is possible to obtain comple x three-dimensional models that, through the three-dimensional photogrammetry and UV ma pping systems, are integrated in a useful model for various studies. The numeric models, however, that are characterized by a high level of deta il cannot be used in web navigation; the restitution of formal, dimensional and chromatic data explain a communication problem linked by the expansion of it's users and the quality of the information transmitted. Therefore, the construction of a web s ite that organizes the acquired and elaborated materials requir e two different categories of models: one linked by immediate web na vigation and one in high detail that is capable of accurately describing the studied object. In such a system, the three-di mensional models become inst ruments of immediate visual communication, providing many links for in-depth examination. The diminishing of geometric information is substituted with maps that represent detailed and embossed maps. The normal-map are capable of increasing the perceptive quality of the low-poly models because it can substitute the normals of the model with the one obtained by RGB bitmaps that associate the components of the normal vector to the faces of the detaile d numeric model with these three canals. The synergy use of the PHP language, database MySQL and VRML allows for the creation of a web site that gives the user the opportunity to study the object differently, visualizing the outcomes in real time.
Visualization of the architecture through simplified models: strategies for knowledge sharing - Pieve a Socana, Casentino, Toscana.
IURILLI, STEFANIA
2007
Abstract
The problem of the quality of architectural representation, in a dynamic use finalized in web or database publication, represen ts the main theme of the current debate regarding the ways in which to share knowledge between different disciplinary fields. Starting with the surveying operations with the laser scanner technology, it is possible to obtain comple x three-dimensional models that, through the three-dimensional photogrammetry and UV ma pping systems, are integrated in a useful model for various studies. The numeric models, however, that are characterized by a high level of deta il cannot be used in web navigation; the restitution of formal, dimensional and chromatic data explain a communication problem linked by the expansion of it's users and the quality of the information transmitted. Therefore, the construction of a web s ite that organizes the acquired and elaborated materials requir e two different categories of models: one linked by immediate web na vigation and one in high detail that is capable of accurately describing the studied object. In such a system, the three-di mensional models become inst ruments of immediate visual communication, providing many links for in-depth examination. The diminishing of geometric information is substituted with maps that represent detailed and embossed maps. The normal-map are capable of increasing the perceptive quality of the low-poly models because it can substitute the normals of the model with the one obtained by RGB bitmaps that associate the components of the normal vector to the faces of the detaile d numeric model with these three canals. The synergy use of the PHP language, database MySQL and VRML allows for the creation of a web site that gives the user the opportunity to study the object differently, visualizing the outcomes in real time.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
