Design and Development of a Macro to Compare Sections of Planes to Parts Using Programming with Visual Basic for Applications in CATIA

This article presents an application for educational purposes in the field of engineering graphics, which corrects dihedral projections sections a plane part by comparing solution provided student with that obtained through 3D CAD modelling software. Said is generated as macro CATIA (Computer-Aided Three-Dimensional Interactive Application), included tool ‘Part Design’ module. The code this written CATVBA language, utilizes internal editor, and takes advantage capabilities offered Visual Basic Applications (VBA) design Graphical User Interfaces (GUI). operation consists obtaining section model, projecting it onto three (elevation, plan, profile), calculating visible hidden lines means numerical process based on dividing into discrete sections. Likewise, to obtain results, (reference section) compared (section needed be corrected) spreadsheet (Microsoft Excel). data coordinates points reference are exported said corrected, contained file dxf format (Drawing eXchange Format). From these data, programming appropriate formulae cells spreadsheet, values errors obtained, thereby locating corrected. can programmed compare central symmetry both