What's Notre Dame's laser modeling? What's Notre Dame's laser modeling? Many of you don't know. Let's take a look at it with download.
What's going on with Notre Dame laser modeling
On the evening of April 15, Paris time, Notre Dame, the landmark of Paris, was destroyed in a fire. The 80 meter high wooden spire collapsed in the thick smoke, making people all over the world feel sad. Fortunately, there are a few pieces of news that can give the public a little relief. First of all, the fire was not caused by deliberate arson. Second, the fire has been basically put out, and most of the remaining buildings and cultural relics of the cathedral have been protected. Finally, in the long run, the losses already caused may not be too great. 'the clock tower of Quasimodo 'is still there, which makes many people who care about Notre Dame feel a little relieved.
French President Marcon has promised to rebuild the cathedral.
So if we want to rebuild such a complex and exquisite building, what can we do?
One person's research can make it look less bad. Dr. Andrew Tallon, an art historian and historical modeler, conducted a comprehensive study of Notre Dame in 2015, creating a digital archive of the building. Despite its long history, Notre Dame has little information about the architects and designers who built it. So Talon hopes to use laser scanning technology to decipher this ancient building.
Talon's laser modeling technology refers to using a laser to 'photograph' Notre Dame, mounting the scanner on a tripod, and then measuring the distance between the scanner and each point hit by the laser. Because each point represents a different distance, by analyzing these millions of points, Talon can understand how Notre Dame expands and contracts in sunlight, and how it changes in a longer period of time. Combining the 'point data cloud' generated by the laser scanner with the pictures taken on site, Talon built a detailed model for the design of the underlying structure and Notre Dame, so as to judge where the original architect deviated from the original plan or stopped work due to the unstable ground conditions.
Talon described the technology in detail in an interview with National Geographic: 'I have to build a network of targets that represent location points in space. After defining the scanning density (scanning resolution), release the laser. After emitting a beam of light, it measures the time it takes for the beam to hit the target and return to the target. '
Talon's research found that the gallery of kings, which occupies an important position on the side of Notre Dame, has deviated nearly a foot from the vertical line. Researchers had suspected that the construction of the king's gallery had stopped for as long as 10 years, and Talon's new study revealed why. The construction workers stopped when they realized that the building was gradually moving in the thin sand. When the ground conditions stabilized, the workers resumed work ten years later.
Another important finding is that the data show that the columns inside Notre Dame are not aligned. This may indicate that the workers may not have demolished all the original buildings in the site of Notre Dame, but merged with the later buildings. Flying arches, which are usually considered to be added to the building later, may be fixed at the beginning to balance the effect of the arch (the structure tends to tilt outward). The flying arch provides an external support that pushes the wall inward to balance the effect of the arch. As a result, the walls of Notre Dame have hardly moved since it was built, demonstrating the delicate balance achieved in the building.
Talon's scanning technology can build extremely accurate and 'rich' 3D models for any given building. Although the specific data on the Notre Dame model is not available, Talon has done similar work in the past (such as his work for the reconstruction of Canterbury Cathedral), with '5 billion laser scanning points' and about 100 GB of storage data.
Thanks to Dr Andrew Talon's hard work, Paris officials may be able to use Notre Dame's 3D model to restore the landmark to its glory. Unfortunately, Talon died in 2018, and he can't respond to whether his work is useful for the reconstruction of Notre Dame. It remains to be seen whether future Paris restoration experts can make use of Talon's research results. Some experts in related fields say that digitization can only play a limited role in the restoration and reconstruction.
Professor Andrew J. Tallon is known as an innovative scholar of French Gothic art and architecture. His main contribution is to introduce digital technology into the spatial archaeological analysis and reconstruction of medieval architecture. From all his works, we can see that he is a talented and generous educator who is committed to reappearing history in a vivid and meaningful way. His first book, Notre Dame de Paris, was published in 2013 and co authored in French with Dany sandron. He also received a five-year research grant from the Andrew Mellon foundation for the web-based mapping Gothic project. His research achievement, the magnificent church of architecture, has been nominated for an Emmy Award and has been regularly broadcast nationwide since 2010. The documentary "uncover the Catholic Church" was released in Europe in 2011, and the 2013 version "roots and wings" was broadcast on French radio 3 and in the innovators series of National Geographic.
Professor Talon was born in Leuven, Belgium on March 12, 1969 and died on November 16, 2018. As an undergraduate at Princeton, he majored in music, but he also took every course taught by Robert mark, an engineer who studied Gothic architecture.
After graduation, he began to travel around the world. At first he went to France, where he studied medieval acoustics. Then he went to New York, where he started a music studio. Then he stopped at a monastery in Northern California and began to explore the life of monks. But the monks told him that he was not fit to do it.
In 2007, Talon joined the Art Department of wasa college to teach medieval art, architecture and pre modern acoustics. It was the music that brought him back to the Gothic cathedral. Murray, an art historian at Columbia University, is working on a multimedia project for Amiens Cathedral, which requires someone to create 'the sound that the church might make'. Mark told him that there was only one person to contact, and that was Andrew talon.
The above is the whole content of the laser modeling of Notre Dame. Thank you very much for your reading!