Editing Cumulated Landscapes: Point Cloud Modeling as a Method of Analysis in Landscape Design

Abstract

Pragmatic planning juxtaposed with conflicting agendas has led to metropolitan territories with little quality for urban life. Rapidly growing urban agglomeration, synchronous with the Great Acceleration of the global society, is causing massive landscape change leading to radical breaks with traditional landscapes. By drawing from the formal properties of the environment that include existing qualities, it is possible to develop solutions that respond to both a broader and more specific context. The method resorts to laser scanning technology to produce three-dimensional point cloud models and use them as a prospective medium to perform informed transformations in the landscape. Laser-scanned 3D models can help take advantage of subtle topographic differences to support water management, capture significant site features, and provide an accurate site inventory that could reduce the cost of displaced terrain and replanted trees. The article discusses how point cloud models can support the site investigation as part of a digital design method in the field of landscape design. The approach engages formal characteristics of a physical landscape and results in a transformative workflow linked to the survey and the analysis of the site. By using modes of visualization and coloring to emphasize shapes, densities, and heights, the model can reveal relevant landscape features and patterns that are otherwise not noticeable. Section 1 introduces the methods used in other disciplines; Section 2 provides explanations about how the methods apply to a case study in landscape design; Section 3 presents the possibilities offered by the approach to integrate formal characteristics of the environment during the design process. Design development based on documented features in the point cloud model increases the control to shape environments that contribute to the process of accumulation occurring in the landscape.

Public environmental landscape art design based on the concept of sustainable development

“…x y SC x y S (10) Where: 𝑘(𝑆) represents the spectral mean of an object S in the 𝑘th band; ∆𝑆 represents the number of pixels contained in the object S; 𝐶 (𝑥, 𝑦) represents the 𝑘 pixel (𝑥, 𝑦) in the object S The spectral value of the band. In brightness analysis, the weighted average of the spectral mean of each band is usually used as the brightness of the surface landscape element object S.…”

“…Today, the concept of sustainable development is gradually becoming the consensus of human society [9] . In the report "Our Common Future" of the World Commission on Environmental Development, the impact of environmental sustainable development in improving people's living standards and improving the quality of life is emphasized [10] . The severe economic, ecological and energy crises in today's society, fast pace, high competition and excessive rationalization, are increasingly awakening human beings' attachment to nature and cherishing their own value.…”

Integration of Aerobiological Information for Construction Engineering Based on LiDAR and BIM

“…Second, data were imported in the Magnet Collage v1 53 TOPCON software to create ".las" and ".ipsx" format points of the clouds. These point clouds must be previously managed in ReCap [60,74] to eliminate unnecessary zones, adjust the point density according to the intended use or, if the file is very large, divide the cloud into zones to improve the performance of the programme (Figure 1c). This was done for cleaning noise points and to obtain a lighter cloud of points before it was used in 3D modelling using Revit [82] to model buildings and trees (Figure 1), considering the high-density of the 3D point cloud and geo-referenced data on urban green infrastructure in urban planning environments.…”

“…Laser-scanned 3D models can help take advantage of subtle topographic differences to support water management, capture significant site features, and provide an accurate site inventory that could reduce the cost of displaced terrain and replanted trees. A design development based on features documented in the point cloud model increases the control to shape environments that contribute to the process of accumulation occurring in the landscape [74].…”