【转帖】edge visibility
 

edge visibility
edge visibility
i am trying to vectorize attached file, using dwg direct vectorization framework to get the geometry data.
there are two layouts one is 'model' and 'presentation plot'. in 'model' layout there is one line and one point. in 'presentation plot' the line and point ha been clipped with circular clipping. on tessellation i get 2 extra lines in the model layout where as in 'presentation plot' i get the correct result. i am trying to check this by edge visibility flag, from the edgedata in the meshproc(). but i am getting the junk values
can anyone help me on the same.
attached files

i can't reproduce the problem using dd vectorization devices (opengl, wingdi, directx).
odvectorizeex sample dumps edge data that isn't junk. could you look - what differs your vectorization with dd odvectorizeex and gs devices?
sincerely yours,
george udov