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The b-rep object

B-rep stands for boundary representation. You define a solid describing its boundary surface.

 You use polygon to make the surface. Every object with a boundary surface is contained in a .brp file.

 The .brp file is a text editor, but this can be very complex and boring to write. You can use other program like 3D Studio for creating a model, save it like a .dxf file and convert it with program dxf2rt. Remember : dxf2rt convert only object formed by polyline not from 3dface.

 

Look at his declaration in a .rt file :

    { object

        name breptest;
         ...

        model {
            name mm1;
            constr 1.2;
            interp 0;
        }
    }


 

This includes a brep object with name "breptest". It looks for model in the file "mm1.brp". First it look in the current directory, then, if Behemot Editor haven' t find it, the program will look in the common model directory.

A particular subset are the brep formed only from triangles. They have particular possibility not allowed for general brep ( for now ).

The attribute interp create a smooted brep object, but you need that all the faces of the object are triangles.
 


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