Carlo BATTINI / Filippo FANTINI
(Facoltà di Architettura di Firenze, Italy)
Purpose: The process carried out beginning with the laser scanner of the Great Thermal Baths of Villa Adriana provides new engagement possibilities of methodologies of representation and communication that originate in scientific fields that are very distant which, operating in synergy, offer the attainment of new quality standards. The process of the metric datum acquired by means of the current laser scan technologies cannot forgot successive and onerous procedures, which as it is noted, eliminate the geometry of the objects surveyed in order to render them publishable in real time applications or dedicated to renderings. The most significant developments in the field of the creation of simplified models, however capable of conveying an elevated number of information, are tied to the entertainment industry that notoriously produce software based on criteria that is very different in respect to the system of processing datum originating from the digital survey campaign.
Methodology/Approach: Combined use of varied applications originating from diverse fields (digital survey, real time) and their synergetic utilization in order to maximize the systems of representation based on the saving of resource hardware and software for the efficient publication of a great amount of information. The procedures are based on consolidated praxis (conversion of point clouds in mesh and obtainment of a manifold model) that are systemized using semiautomatic finalized procedures in order to obtain a model of the surface of subdivision that, through banking of the scanned geometry, maintain geometric information that otherwise would be lost in the necessary geometric elimination that takes place caused by the publishing in such surveying networks.
Results: Obtainment of simplified and optimized models that conserve the geometric datum under the bitmap form through normal maps. Advantages in manageability terms, division and quality perceived by the datum acquired by means of the digital survey. Easy publishing on the web of three-dimensional models in VRML. Diminishment of calculating time necessary to obtain rendering images.
Keywords: Laserscan, Monuments, Modelling, Analysis, representation, dissemination, bump map.