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BLSURF Parameters hypothesis


BLSURF Parameters hypothesis works only with BLSURF 2d algorithm. This algorithm is a commercial software.

General parameters

blsurf_parameters.png


The following options are commonly usable. The notion of diag used in the descriptions means the diagonal of the bounding box of the geometrical object to mesh.


The following advanced options are not documented and you can use them at your own risk.

Integer variables:

Real variables:

String variables:

Custom size map

blsurf_parameters_sizemap.png

User sizes can be defined on faces, edges or vertices.


See Also a sample TUI Script of the creation of a BLSurf hypothesis, including size map.

Computation of the physical size


The physical size is obtained by querying sizemap functions associated to the input CAD object for surfaces, curves and points. Each function can either return a value h (which is then trimmed between the two bounds hphymin and hphymax), or "no answer" (by not assigning a value to h), thus providing great flexibility in the specification of the sizes. The computation depends on whether point P is internal to a surface, internal to a curve, or at the end of several curves:

In order to compute the mean of several values, the arithmetic mean is used by default, but this can be modified by the parameter hmean flag. In the same way, in order to interpolate two values, a linear interpolation is used by default, but this can be modified by hinterpol flag.

Custom enforced vertices

blsurf_parameters_enforced_vertices.png

It is possible to define some enforced vertices to BLSurf algorithm without creating any vertices by CAD algorithms.


See Also a sample TUI Script of the creation of a BLSurf hypothesis, including enforced vertices.

Limitations

Currently BLSURF plugin has the following limitations.


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