Abstract
This research could be classified under the group of 3D CAD. It includes manipulation of 3D surface primitives by using the most drawing common package, namely AutoCAD for drawing these shapes and save thing in DXF format, after that a suitable logical program is built to recognize these shapes and to create the required mathematical relationships for the purpose of data extraction of these shapes such as length, width, height, and diameter, etc. Also the automatic recognition of these shapes and their extraction have been done for the purpose of maneuverability and improve the ability of dealing with these 3D surface primitives in DXF format. AutoCAD package is used as a drawing and viewing tool, throughout the full connection between this package and the proposed software program using visual basic programming language.
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