dimension recognition

i try to recognition geometry dimension from step file.(photo attached)
Can any body help me for recognition dimension?
i need syntax for explore dimension like TopExp_Explorer that explorer and saved faces in the shape.
i need 3 type information :
1.Dimension value and tolerance
2.Type of dimension, such as linear dimension, angle dimension and diameter dimension.
3.Boundary elements of the dimension: a face, an axis and an

Best regard

Daniel Neander's picture


http://dev.opencascade.org/doc/overview/html/occt_user_guides__modeling_... has the syntax for TopExp_Explorer. Please refer to the dimension tool in viewer3d sample for all other info.

Kind regards
Daniel Neander

Gilles DAVID's picture

Hello Dear Daniel Neander
thank you for help. i read ref page but i can't find any syntax for explorer dimension.
please explain more if u can.

Daniel Neander's picture