The article is based on the research conducted by authors. houses from ancient town discovered in 1985 Mediterranean coast at location of today’s Marina el-Alamein, are among rare remains Egyptian residential buildings Hellenistic and Roman times. There few this period major cities, including capital Alexandria. town, which functioned under influence nearby Alexandria, developed second century ...

Manipulation planning of cluttered objects involves a mixture of symbolic and geometric constraints which makes such planning very time consuming and often unsuitable for real applications. We propose to divide the geometric restrictions in two groups. The ones in the first group are used to generate a set of symbolic states used for planning. The evaluation of the ones in the second group is d...

In design and manufacturing applications users of computer aided de sign systems want to de ne relationships between dimension variables since such relationships express design intent very exibly This work reports on a technique developed to enhance a class of constructive geometric con straint solvers with the capability of managing functional relationships be tween dimension variables The met...

The process of modeling geometric objects often entails modifica­ tion of a portion of a surface--a subsurface-which is part of a larger geometric shape. Most geometric modeling applications do not pro­ vide an interface that allows for user specification of arbitrarily shaped subsurfaces. We have developed two polygonal modeling applications which overcome this limitation. They employ an inter...

Two examples of a particular kind of form-finding problems are studied; given a set of fixed points, we ask for the position of an extra point such that a given framework admits a self-stress and hence a tensegrity structure can be built from it. We present two different approaches to solve these problems: The first method is geometric and hence more visual. A symbolic method is proposed as a s...

Human adults from diverse cultures share intuitions about the points, lines, and figures of Euclidean geometry. Do children develop these intuitions by drawing on phylogenetically ancient and developmentally precocious geometric representations that guide their navigation and their analysis of object shape? In what way might these early-arising representations support later-developing Euclidean...

abstractone of the methods for communications with various people's culture and art is to understand their views and beliefs as well as possible. in many cases, such beliefs appear in the forms of motifs and pictures drawn on artworks and historical-cultural artifacts; therefore, recognition of these patterns is of great importance in this regard. the meander pattern is one of such motifs ...