In order to have the precision required in
industrial design, drawings need to offer the
possibility of removing lines, which are hidden
in a given projection. To do this, the Hidden
Line Removal component provides two
algorithms: HLRBRep_Algo and HLRBRep_PolyAlgo.
These algorithms remove or indicate lines
hidden by surfaces. For a given projection, they
calculate a set of lines characteristic of the
object being represented. They are also used
in conjunction with extraction utilities, which
reconstruct a new, simplified shape from a
selection of calculation results. This new shape
is made up of edges, which represent the lines
of the visualized shape in a plane. This plane is the projection plane.
HLRBRep_Algo takes into account the shape
itself. HLRBRep_PolyAlgo works with a
polyhedral simplification of the shape. When
you use HLRBRep_Algo, you obtain an exact
result, whereas, when you use
HLRBRep_PolyAlgo, you reduce computation
time but obtain polygonal segments.
#include <HLRAlgo.hxx>
Static Public Member Functions |
static void | UpdateMinMax (const Standard_Real x, const Standard_Real y, const Standard_Real z, const Standard_Address Min, const Standard_Address Max) |
| Iterator on the visible or hidden parts of an
EdgeStatus.
|
static void | EnlargeMinMax (const Standard_Real tol, const Standard_Address Min, const Standard_Address Max) |
static void | InitMinMax (const Standard_Real Big, const Standard_Address Min, const Standard_Address Max) |
static void | EncodeMinMax (const Standard_Address Min, const Standard_Address Max, const Standard_Address MinMax) |
static Standard_Real | SizeBox (const Standard_Address Min, const Standard_Address Max) |
static void | DecodeMinMax (const Standard_Address MinMax, const Standard_Address Min, const Standard_Address Max) |
static void | CopyMinMax (const Standard_Address IMin, const Standard_Address IMax, const Standard_Address OMin, const Standard_Address OMax) |
static void | AddMinMax (const Standard_Address IMin, const Standard_Address IMax, const Standard_Address OMin, const Standard_Address OMax) |
Member Function Documentation
The documentation for this class was generated from the following file: