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The decreasing number of lectures included in the curriculum of studies, the expansion of computer techniques and the logic of computer drawing creation, make us seeking new solutions in the field of methods of teaching, studying and contents of the subject called Descriptive Geometry. [1]. In this paper some defined realisations of the concept outlined in the paper [1] are presented,a nd somef urtheri...
A simple criterion for verifing the location of the common point of three or more hipped roof ends is proposed and illustrated in the paper. Horizontal projection of such a point is the centre of circle inscribed in a polygon of eaves.
In the academic textbooks on descriptive geometry we meet with two various approaches to the Monge's method. There are the traced and untraced methods. Textbook authors usuallv prefer one of them ignoring sometimes the other method. In this paper we show that this problem have an essential geometrical sense. Namely, these methods are related to two differentg eometricalc onfigurations. Construction...
This paper describes studies focused on Pazzo's treatise regarded as a vital element of method of instructingq uadraturistsT. he scope of study comprisesr esearcheso f status of Polish studies of the treatise as well as valuation of pictoriality of presentation of geometrical aspects by Pozzo. The paper poses a thesis and tries to prove it: Andrea Pozzo's treatise on perspective, despite some geometric...
Autorzy są nauczycielami akademickimi w Katedrze Geometrii Wykreślnej i Grafiki Politechniki Lwowskiej. W artykule omawiają programowe wyznaczniki przedmiotu,”grafika inżynierska i komputerowa'', który w nowy sposób ustawia dydaktykę geometrii wykreślnej i rysunku technicznego.
In the paper arbitrary axes (diameters) of an ellipse and an arbitrary axis of affinity are assumed. Next a circle affine with an ellipse is constructed The constructions are presented for an arbitrary location of axis of affinity.
A special case of pencils and streaks of conics is considered. In this case, if the centre of pencil of lines (or the base of points range) belongs to the double basis element, the points of tangency of particular rays of the pencil (or the tangents passing through particular points of range) lie on one straight line (passing through one point). In the paper the examples of using the above mentioned...
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