OCC.TopClass module

The package TopClass provides Classificationalgorithms. A Classification algorithm is used tocompute if a point is inside, outside or on theboundary of a Shape.

class SwigPyIterator(*args, **kwargs)

Bases: object

advance()
copy()
decr()
distance()
equal()
incr()
next()
previous()
thisown

The membership flag

value()
class TopClass_Intersection3d(*args, **kwargs)

Bases: object

HasAPoint()
  • True is returned if a point has been found.
Return type:bool
IsDone()
  • True is returned when the intersection have been computed.
Return type:bool
Perform()
  • Perform the intersection between the segment L(0) … L(Prm) and the Face <Face>. //! Only the point with the smallest parameter on the line is returned. //! The Tolerance <Tol> is used to determine if the first point of the segment is near the face. In that case, the parameter of the intersection point on the line can be a negative value (greater than -Tol).
Parameters:
Return type:

void
Point()
  • Returns the Intersection Point.
Return type:IntCurveSurface_IntersectionPoint
State()
  • Returns the state of the point on the face. The values can be either TopAbs_IN ( the point is in the face) or TopAbs_ON ( the point is on a boudary of the face).
Return type:TopAbs_State
thisown

The membership flag

class TopClass_SolidExplorer(*args, **kwargs)

Bases: object

CurrentFace()
  • Returns the current face.
Return type:TopoDS_Face
InitFace()
  • Starts an exploration of the faces.
Return type:void
InitShell()
  • Starts an exploration of the shells.
Return type:void
MoreFaces()
  • Returns True if there is a current face.
Return type:bool
MoreShells()
  • Returns True if there is a current shell.
Return type:bool
NextFace()
  • Sets the explorer to the next face and returns False if there are no more wires.
Return type:void
NextShell()
  • Sets the explorer to the next shell and returns False if there are no more wires.
Return type:void
OtherSegment()
  • Returns in <L>, <Par> a segment having at least one intersection with the shape boundary to compute intersections. //! The First Call to this method returns a line which point to a point of the first face of the shape. The Second Call provide a line to the second face and so on. //! if the method is called N times on a shape with F faces (N>F) the line point to other points on the face 1,2,3 … N
Parameters:
Return type:

void
Reject()
  • Should return True if the point is outside a bounding volume of the shape.
Parameters:P (gp_Pnt) –
Return type:bool
RejectFace()
  • Returns True if the face bounding volume does not intersect the segment.
Parameters:
Return type:

bool
RejectShell()
  • Returns True if the shell bounding volume does not intersect the segment.
Parameters:
Return type:

bool
Segment()
  • Returns in <L>, <Par> a segment having at least one intersection with the shape boundary to compute intersections.
Parameters:
Return type:

void
thisown

The membership flag

new_instancemethod(func, inst, cls)
register_handle(handle, base_object)

Inserts the handle into the base object to prevent memory corruption in certain cases