2 boyutlu çizimlerden 3 boyutlu katı modellerin otomatik elde edilmesi

Bu makalede, 2 boyutlu çizimlerden 3 boyutlu katı modellerin otomatik olarak elde edilmesi konusunda bir çalışma yapılmıştır. AutoCAD ortamında kullanıcı tarafından oluşturulan 2 boyutlu silindirik ve prizmatik parçalar DXF (Data Exchange Format) formatında kaydedilmekte ve geliştirilen program, oluşturulan parçanın DXF dosyasını kullanarak silindirik ve prizmatik parçaların unsurlarını çıkarmaktadır. Aynı zamanda, geometrik bilgi program tarafından değerlendirilerek, silindirik ve prizmatik katıların birincil ilkelleri ve unsur hacimleri dönel ve doğrusal süpürme operasyonları ile elde edilir. Daha sonra, unsur hacimleri Boolean operasyonları yardımıyla birincil ilkellerden çıkarılır ve silindirik çözüm nesnesi tamamlanır. Prizmatik çözüm nesnesi ise birincil ilkeller bir araya getirilerek elde edilmiştir. Programlama dili olarak VisualLISP programlama dili kullanılmıştır.

Automatic reconstruction of 3D solid models from 2D drawings

In this paper, automatic reconstruction of 3D solid models from 2D drawings has been performed. The orthographic views of 2D cylindrical and prismatic parts drawn by the user in a CAD program are saved in DXF format and the program developed extracts cylindrical and prismatic features using DXF file. Having been evaluated the geometric information by the program, primary primitives and feature volumes of cylindrical and prismatic solids are obtained by rotational and linear sweeping operations. feature volumes are then subtracted from the primary primitives by Boolean operations and cylindrical final solid models are completed. Prismatic final solid models are obtained by combining of primary primitives. VisualLISP was used as a programming language.

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