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Proceedings of the IMProVe 2011

International conference on Innovative Methods in Product Design

June 15th – 17th, 2011, Venice, Italy

Virtual reconstruction of the door of the Apostles of the Insigne Collegiate Church of Santa María of Gandia Spain

Lengua-Lengua I.(a), Peris-Fajarnés G.(a), Magal-Royo T.(a) , Larisa Dunai(a), Giménez-López(a), Jose Luis(a)

(a) Centro de Investigación en Tecnologías Gráficas, Universitat Politècnica de València

Article Information

Keywords: Screening, virtual, research, simulation, graphics.

Corresponding author: Ismael Lengua Lengua Tel.:+34 963879518 Fax.: +34 963879519 e-mail: [email protected] Address: Camino de Vera s/n Ed. 8L 46022 Valencia (Spain)

Abstract

On the occasion of the restoration of Insigne Collegiate in Gandia and continuing the research work carried out by Sanchez Piris reconstruction of the original front door of the Apostles of the Collegiate, begins a second phase of research that has aim to generate a virtual image of what could have been the door of the Apostles dating from the XVI century. Although the door did not have images or historical references or recorded, it does have data on the architectural style and the time it was built. It is believed that the author could have been Pere Comte or any member of his school, who is credited with the Valencia Marketplace, a World Heritage listed. Since there is no historical reference to what might have been the original facade, with the supervision of the architect responsible for the restoration of the Collegiate Dr. D. Architect Peñin Alberto Ibáñez, we proceed to conduct a research study that aims to make a virtual projection on the door of the Apostles in a non-invasive technique that simulates what might have been the main gate of the Collegiate.

1 Introduction

The Collegiate Church of Our Lady of the Assumption located in the Plaza of the Constitution was built on the ruins of an ancient mosque and was once the parish of Santa Maria. It was erected in college by papal bull of Pope Alexander VI, and was awarded the title of Collegiate October 26, 1499.

The header is considered Gothic, dating from the late s. XIV or early s. XV, and the rest from the early s. XVI, is a reconstruction due to Maria Enriquez, first Duchess of Gandía.

Of a single ship and smooth walls, is an important

example of late valencian Gothic. Outside, the south gate style corresponds to the earliest of the building, and the Door of the Apostles with sculptures is attributed to Forment and children workshops.

Inside there are nine chapels on each side, round windows and roof with carefully worked keys. The choir is from late s. XV and is decorated with the coats of the Borgia family.

The Collegiate was declared as historic monument in 1931. During the years of the Spanish civil war famous

artistic treasures were lost, the file disappeared and it was destroyed the square head that was later replaced by a neo-Gothic polygonal head. From the forties began the restoration of Gandía’s Collegiate. The virtual image is recreated according to the study of research and development undertaken by M ª José Sánchez Piris [5], which makes a detailed study by the architecture of Pere Compte [1], either the author or the school that is credited with the construction of this door.

Fig. 1 architecture of Pere Compte [5]

Spanish architect Pere Compte most important work is the Lonja de Valencia (1483-1498). Participated in the construction of the Torres de Quart Valencia city as well as the Cathedral of Valencia and the Palau de la Generalitat Valenciana. It also broke ground for

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Lengua-Lengua et al. Virtual reconstruction of the Insigne Collegiate Church of Gandia

June 15th – 17th, 2011, Venice, Italy Proceedings of the IMProVe 2011

construction of the Consulate of Mar. He died July 25, 1506 in the city of Valencia.

Fig. 2 State before restoration Source: “Patrimonio

Monumental: Intervenciones recientes” A. Peñín Ibañez [4]

1.1 Initial image generation starting

The study by Sánchez Piris [5], extracts a collection of Valencian Gothic art and especially of the works attributed to Pere Comte and his school who is believed to be the author of the Gate. With all the information gathered from the previous study, it generates a report that is sent to Heritage for approval of non-invasive simulation on the door of the Collegiate.

Fig. 3 State after restoration and simulation study Source:A. Peñin [4]

Fig. 4 Proposed virtual image restoration Source: M. Sánchez Piris [5]

Virtual simulation system

For the choice of equipment is taken into account the technical assumptions described later. We were also looking for functionality in the equipment to properly develop the purpose and future use. To study the most important factor for the projection, tests were done to determine what would be the best option. Raised the following premises:

1. The first is that it should be a device which is in the open, so it should be resistant to inclement weather. 2. It must also be a standalone device with automatic programming. 3. It should also be a device that could remotely turn to pay if necessary. 4. The device must have a high tolerance for failure.

This system would consist of a projector with the production of images and ignition control device and wireless device for remote operation. It proposed a technical solution for the installation was easy to use. In choosing the systems are combined different brands, to always keep the right performance at the highest possible level and always leave open the possibility for future expansion and / or changing times and circumstances were suing.

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We conducted two field tests in systems that were considerably more optimistic as the projection through a "gobo" and the projection by a video projection system.

Fig. 5 GOBO VARISCAN 6 tests on the front and the NEC 3000 lumen projector no light on the facade support

Of the existing projection technology is chosen as DLP is not susceptible to burns and one should not worry about static images can become permanently marked as LCD systems. Has been estimated minimum need 5000 lumens projection.

It determines the point of projection in an area accessible from a balcony on the facade of the building opposite the Gate of the Apostles, as central as possible to minimize the aberrations and distortions in the image.

Fig. 6 Type projection lens and vertical position on the

Door

To project the image raises a number of previous difficulties such as lack of linearity of the projection zone with respect to the door to project, having two types of deviation of horizontal and vertical linearity as shown. Storage and issue of the image to be projected is selected SingEdge device that incorporates a system with an integrated hard disk player is a digital signal to AVC/H.264, MPEG 2, JPEG files to execute decoding HD IP traffic.

Fig. 7 System programming screens.

To protect the system is designed as a box to support the range of temperature and moisture needed to resist climate change outside the Collegiate where stands the Gate of the Apostles of Gandia, the box is made of stainless steel with forced ventilation air into the bottom with 3 fans planes with a particulate filter and out through the top campaign mode so that rain can not penetrate into the case at all.

Fig. 8 Final installation

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For final verification tests are performed robustness against possible failures are tested for system failure due to lack of power, power surges, accidental shutdown, deprogrammers

1.2 Virtual simulation

The recreation of the image to be projected comes from the research work previously done by Sánchez Piris.

Fig. 9 Planning Projection

Fig. 10 Real Location Projection

To project the image raises a number of previous

difficulties such as lack of linearity of the projection zone with respect to the door to project, having two types of deviation of horizontal and vertical linearity as shown. Below is the view of the door of the Apostles of the Collegiate Gandía and projection.

Fig. 11 Planning Projection

To correct the deviations that result in aberrations to the time of projecting the image on the Door of the Apostles, using a photo retouching tool for adjusting the image to go to the door manually correcting all the aberrations caused the lack of linearity of position due to the geometry of the square of the Apostles and the need to choose a site accessible to locate the projection.

2 Conclusion

The implementation covered the initial

expectations raised under the supervision of the architect responsible for the restoration of the Collegiate D. Peñin Alberto Ibañez. The adaptation of the image that has been totally manual, which has been necessary to adapt each part of the image so that the result is a reconstruction that simulate reality with a sense of relief and giving an effect of total integration despite being projected onto a flat surface.

The final system's open architecture, allows in the future should there be documentation describing how it could have been the original gate could adapt the new design without changing the system. It has been a research project which had to pose many challenges, with a final implementation of robust and high quality.

The main objective initially proposed was the final implementation as well as the intermediate process of system design and redesign of the image for a virtual projection system that would reproduce in the most real possible as it might have been the door of the Apostles the Collegiate Church of Santa Maria Insigne de Gandía. The goal has been met and the system is now operational.

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Fig.12 Current state with the virtual simulation night

Fig.13 Current state with the virtual simulation night

References [1] Cortell, Mª Consuelo, Guía de la Seu : V Centenario de la Colegiata, Gandía, 1999. Gandía: Ayuntamiento de Gandía, 1999. 59 p. ISBN: 84-605-9564-1 [2] Vidal Lorenzo, Cristina, Gandía desde la Seu una morada al passat, Gandía, 1999. Gandía: CEIC Alfons el Vell de Gandia, 2006. 231 p. ISBN: 84-96927-94-3 [3] Escrivá Calatayud, Andrés, La insigne Colegiata de Gandía, Instituciones de Gandía ; 266 p. 1999. Nº Doc 234856 [4] Argente Daroqui, Enrique, Peñin, Alberto, Arraiz García, Miguel, Patrimonio monumental : intervenciones recientes Valencia : Ícaro, Colegio Territorial de Arquitectos de Valencia, 2004 305 p. ISBN: 84-868-2848-1 [5] Sánchez Piris, Mª José, Reconstrucción Virtual de La Puerta De Los Apóstoles de La Colegiata De Gandía. Universidad Politécnica de Valencia. Proyecto. 2004. [6] Torres González, José Luis Sobreintensidades en baja tensión : riesgos, protecciones y aparamenta. Madrid AENOR, D.L. 2001 267 p. ISBN 84-81432903 [7] Cruz Gómez, José Manuel de la, Instalaciones de puesta a tierra y protección de sistemas eléctricos Barcelona : Experiencia, D.L. 2005 148 p. ISBN 84-96283194 [8] Wright, A., Electrical power system protection Dordrecht [etc.] : Kluwer Academic, cop. 1999 607 p. ISBN 0412817608 [9] NEC. website. http://www.nec.es/index.php?option=com_content&task=blogcategory&id=5&Itemid=3 [accessed: 15 Mar 2010] [10] PANASONIC. website. http://www.panasonic.es/html/es_ES/index_ES/index.html [accessed: 15 Mar 2010] [11] SONY. website. http://www.sony.es/biz/product/fpjhomecinema [accessed: 15 Mar 2010] [12] SCHNEIDER. ELECTRIC. website. http://www.schneiderelectric.es/ [accessed: 15 Mar 2010] [13] SIGNEDJE. website. http://www.techex.es/index.php?option=com_content&view=article&id=86&Itemid=506 [accessed: 15 Mar 2010] [14] FERMAX. website. http://www.fermax.es/skylinees.aspx [accessed: 15 Mar 2010]

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