In this paper, the algorithm was designed for cylinders, slots and pockets extraction from
CAD models saved in STL file depending on rule-based method and graph-based method.
Besides, windows application was designed using Visual Studio C# which al
lows the user
to import CAD model and features extraction and view their geometric information
(cylinder diameter, height, cylinder center coordinates, width, height, length for slots and
pockets. In addition, all surfaces that the feature consists from.
The proposed algorithm consists from multi-steps are: dividing input model into multi
surfaces based on RegionGrowing method, next step is cylinder features extraction
depending on rule-based method, slots and bockets extraction depending on graph-based
method, calculating geometric information for each extracted feature.
The results show that the proposed algorithm can extract cylinders, slots and pockets
features from CAD models which saved in STL files and calculates geometric information
for each extracted feature.
