基于海量点云数据的大雁塔三维重建

古建筑三维重建已成为历史遗迹保护与修复的重要内容。为了探讨三维激光扫描数据的获取流程、数据处理方法,以三维激光扫描获取的大雁塔海量点云数据为例,研究了古建筑三维重建中点云数据获取与处理的详细过程。联合Cyclone、AutoCAD和3D-Max软件的优点构建了大雁塔真实的横面、剖面、立面模型,其中重点研究了海量点云数据在Cyclone软件中分块建模的方法。结果表明:将拼接好的大雁塔海量点云数据分块建模,不仅加快了数据处理的速度,而且符合精度要求。在点云数据拼接时采用标靶拼接和同名点拼接相结合及测站间两两拼接之后再整体拟合平差的方法,减少了拼接中的误差,使每站拼接误差都不超过3cm。在建模过程中的墙体拟合是上万个点云经过平差计算得到,精度高达2mm。最后在3D-Max软件中组合、渲染和贴图,真实地构建了大雁塔三维立体模型。为古建筑数字化存档和后期的修缮工作提供了重要的依据。     

Brutalism Redux: Relational Monumentality and the Urban Politics of Brutalist Architecture

Brutalism is an architectural form that is experiencing somewhat of a revival of late. This revival focuses almost purely on its aesthetics, but there is an ethical dimension to Brutalism that often gets overlooked in these narratives. This paper therefore reanalyses the original concepts and ethics of brutalist architecture with a reaffirmation of the original triumvirate of brutalist ethics as articulated by Raynar Banham as monumentality, structural honesty and materials “as found”. The paper then articulates these through the literature on architectural affect to argue that brutalist ethics are continually “enacted” via a relational monumentality that brings the building and its inhabitants together in the practice of inhabitation. Using the case study of Robin Hood Gardens in London, the paper posits that a “brutalist politics” comes into light that can help catalyse a broader critique of contemporary neoliberalism.     

Magnetic Gradient Survey of the Marpole Period Dionisio Point (DgRv-003) Plankhouse Village,Northwest Coast of North America

Architectural reconstructions of plankhouses are central to the study of household and community organization on the Northwest Coast of North America. However, the sample of substantially excavated houses is constrained by their size, stratigraphic complexity, and typically limited surface expression. We present the results of a magnetic gradiometry survey of the Dionisio Point site (DgRv-003) village, occupied ca. a.d. 500–700 on the coast of British Columbia, Canada. Survey of four house platforms reveals patterning of magnetic anomalies consistent with the structure of shed-roof houses, a design recorded ethnographically and identified archaeologically at the site. These results suggest a consistent pattern of spatial and, potentially, social organization of the households. The similarity of patterns suggests that magnetometry may be useful for guiding plankhouse excavations elsewhere on the Northwest Coast, providing a means for expanding our knowledge of houses without relying solely on traditional excavation methods.     

Secularisation,anticlericalism and cremation within Italian cemeteries of the nineteenth century

This article examines the monumental cemeteries of nineteenth-century Italy with regard to their role as platforms for the tensions between Church and state. In that burial grounds were publically owned yet administered by the clergy, they represented a space where conflicts between secular and clerical powers might be played out – conflicts that reached a peak in the final decades of the Ottocento following the annexation of the Papal State to unified Italy. Particular attention is given to the adoption of cremation as a practice that was advocated by anticlerical, liberal and radical factions in opposition to the Catholic Church. That opposition was manifested in the design and layout of Italian burial grounds and in construction of new crematoria.     

L'urne et le pot de chambre

Résumé  En 1931, Ludwig Wittgenstein a identifié l'architecte et le critique culturel Adolf Loos comme une des dix personnes qui ont exercé la plus grande influence sur son développement intellectuel. Dans cet article est examinée l'influence de Loos sur Wittgenstein, en particulier son importance dans le projet de Wittgenstein pour la maison de sa sœur, ainsi que celle exercée sur les idées concernant la langue et l'éthique exprimées dans leTractacus. In 1931, Ludwig Wittgenstein identified the architect and cultural critic Adolf Loos as one of the ten people who had exerted the greatest influence on his intellectual development. In this article, I examine Loos's influence on Wittgenstein's design for his sister's house and also on the ideas about language and ethics set out by Wittgenstein in theTractatus. JohnHyman, né en 1960, estfellow au Queen's College d'Oxford. Il a publié de nombreux articles concernant l'épistémologie, la philosophie de l'esprit, l'esthétique et la philosophie de Wittgenstein. Son prochain livre, intituléThe Objective Eye. Colour, form and reality in the theory of art (L'Œil objectif. La couleur, la forme et la réalité dans la théorie de l'art), sera publié par les Presses de l'université de Chicago en 2006.     

The Local Drivers of Land Degradation in South‐East Asia

Economic globalisation has led to a huge increase in demand for food, goods and services by expanding urban middle class populations. These demands cause environmental changes that in turn feed back upon the urban environment and human population. While the global changes are well researched, the cumulative significance of local environmental changes is less well known. Yet, the local changes may have greater impact on the decisions which individuals make that affect soil erosion and land degradation. People respond to family circumstances and to local economic opportunities in ways that most suit the needs of their families and households. Several demonstration projects that were not adopted offer lessons in understanding how people make their land‐use decisions. An understanding of people's past experiences, present needs and views of the future helps those seeking to improve environmental management to promote policies and actions that are likely to succeed by being acceptable to those involved.     

The Economics of Rural Households in Russia: Impact of Village Location

An American specialist on Russia's agrarian sector and two collaborators explore the effects of distance to nearby urban markets on the agricultural output and income of Russian rural households. Unlike previous studies that have largely tested such effects on the basis of household distance from relatively large oblast administrative centers, the authors adopt a micro-level scale of analysis, focusing on distance from smaller rayon centers. Comparison of two sample populations (near vs. remote from rayon center) from a larger survey population of 900 households in nine representative regions of Russia reveals marked differences in household incomes, commodity output, and real holdings of land that are statistically verified by a linear regression model. Journal of Economic Literature, Classification Numbers: O18, P32, Q15, Q18. 4 tables, 46 references.     

Factor Decomposition of Rural Income Inequalities in China

A Chinese geographer explores changes in inter-provincial rural income inequality in China since the late-1970s economic reforms by decomposing it into different component factors based on the Gini index (more specifically, into contributions by different income sources: wages, household operations, properties, and transfers). The influence of each factor on inequality changes is further decomposed into its structure effects and its real inequality effects. Quantitative analysis then makes it possible to determine the relative influence of each component on changes in rural provincial inequality over time.     

Han Chinese,Manchu, and Western Spaces: The Changing Facade of Imperial Education in Qing Beijing

The physical spaces of imperial education during the Qing were carefully constructed sites of political architecture that sought to shape the behavior of princes, emperors, and their teachers while projecting dynamic images of power. This article examines a range of buildings associated with the Qing pedagogical apparatus. It argues that the changing spaces of imperial education drew on both classical ideals and international iconographies of power to create and disseminate a fluid vision of rule. In the eighteenth century, the Qianlong emperor ordered the construction of the Biyong Hall at the center of the Imperial Academy in Beijing for exclusive use by the emperor during the Imperial Lecture, combining classical Han Chinese and Manchu expressions of authority. Throughout the nineteenth century, heirs to the throne and young emperors were trained in classrooms filled with calligraphy penned by their ancestors. Aphorisms drawing on the Confucian classics, as well as Daoist and Buddhist texts, urged the young rulers to strive for dynastic renewal. Finally, at the start of the twentieth century as the Qing worked to transition to a constitutional monarchy, imperial classrooms around Beijing were infused with Western architectural styles, incorporating new strands of authority for the reforming Qing dynasty.     

Richard,duke of York,and the crisis of Henry VI's household in 1450–1: some further evidence

The political crisis in England in 1450 and the deteriorating relationship between King Henry VI and Richard, duke of York, in the summer of that year are examined in the light of two new documents. These provide direct evidence of the reaction of the royal household, if not the king himself, and his advisers to the duke of York's return from Ireland, firstly from the Midlands in the summer of 1450, and secondly, from North Wales around April 1451. Both items were sent to Lord St Amand. The first, from the duke of Buckingham, notes the arrival of a notable force in Warwickshire and a stand-off between the bishop of Coventry and Lichfield and the men of Stafford and its region. The second, from a royal servant, Thomas Broun, is a memorandum of advice for St Amand, who was shortly to become chamberlain in North Wales. It focuses on the excesses of Sir Thomas Stanley, one of a small group of royal household officials holding office in this area, and the threat they posed to the king's regime and its financial stability.