Forms are called ‘developable’ or ‘single curved’ when they can be created through ordinary bending of a planar surface without stretching, cutting or wrinkling the material. These surfaces are characterized by only bending in one direction at a time, like the cylinder or the cone. Developable surfaces are useful because they allow round forms to be made out of flat materials like plywood, sheet metal or cloth (Kolher, 2010 AU38: The in-text citation "Kolher, 2010" is not in the reference list. Please correct the citation, add the reference to the list, or delete the citation. ). For non-developable surfaces is studied your approximate planning, and one of the processes used is approximated by spherical zones. The zones that make up the spherical surface are not developable hence these zones are developed by means of a sufficiently rough flat surface ( Kremer, 2008 ).
Published in Chapter:
Transiting between Representation Technologies and Teaching/Learning Descriptive Geometry: Reflections in an Architectural Context
Janice de Freitas Pires (Universidade Federal de Pelotas, Brazil), Luisa Dalla Vecchia (Universidade Federal de Pelotas, Brazil), and Adriane Almeida da Silva Borda (Universidade Federal de Pelotas, Brazil)
Copyright: © 2016
|Pages: 24
DOI: 10.4018/978-1-5225-0029-2.ch011
Abstract
Teaching descriptive geometry, in the context of this study, is characterized by the continuous investment in recognizing digital representation technologies which can enhance the didactic activities in architectural training. This study describes this trajectory which includes the use of virtual reality, augmented reality and parametric modelling, as well as freehand drawing and the production of physical models both by automating the unfolding process and by digital fabrication processes of 3D printing and laser cutting. In addition to questioning the relevance and sustainability of the infrastructure needed to ensure the continuation of this trajectory, the potentialities identified in each of the learning activities that have been structure, are shown. Although these potentialities are specific to this context, it is considered that this type of record contributes to understand the issues being faced in teaching practices.