File size: 5,928 Bytes
985c397 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | # SPDX-License-Identifier: LGPL-2.1-or-later
from __future__ import annotations
from Base.Metadata import export, class_declarations
from Base.PyObjectBase import PyObjectBase
@export(
PythonName="Part.ShapeFix.Edge",
Include="ShapeFix_Edge.hxx",
Constructor=True,
)
@class_declarations(
"""
private:
Handle(ShapeFix_Edge) hEdge;
public:
void setHandle(Handle(ShapeFix_Edge) handle) {
setTwinPointer(handle.get());
hEdge = handle;
}
"""
)
class ShapeFix_Edge(PyObjectBase):
"""
Fixing invalid edge
Author: Werner Mayer (wmayer@users.sourceforge.net)
Licence: LGPL
"""
def fixRemovePCurve(self) -> bool:
"""
Removes the pcurve(s) of the edge if it does not match the
vertices
Check is done
Use : It is to be called when pcurve of an edge can be wrong
(e.g., after import from IGES)
Returns: True, if does not match, removed (status DONE)
False, (status OK) if matches or (status FAIL) if no pcurve,
nothing done.
"""
...
def fixRemoveCurve3d(self) -> bool:
"""
Removes 3d curve of the edge if it does not match the vertices
Returns: True, if does not match, removed (status DONE)
False, (status OK) if matches or (status FAIL) if no 3d curve,
nothing done.
"""
...
def fixAddPCurve(self) -> bool:
"""
Adds pcurve(s) of the edge if missing (by projecting 3d curve)
Parameter isSeam indicates if the edge is a seam.
The parameter 'prec' defines the precision for calculations.
If it is 0 (default), the tolerance of the edge is taken.
Remark : This method is rather for internal use since it accepts parameter
'surfana' for optimization of computations
Use : It is to be called after FixRemovePCurve (if removed) or in any
case when edge can have no pcurve
Returns: True if pcurve was added, else False
Status :
OK : Pcurve exists
FAIL1: No 3d curve
FAIL2: fail during projecting
DONE1: Pcurve was added
DONE2: specific case of pcurve going through degenerated point on
sphere encountered during projection (see class
ShapeConstruct_ProjectCurveOnSurface for more info).
"""
...
def fixAddCurve3d(self) -> bool:
"""
Tries to build 3d curve of the edge if missing
Use : It is to be called after FixRemoveCurve3d (if removed) or in any
case when edge can have no 3d curve
Returns: True if 3d curve was added, else False
Status :
OK : 3d curve exists
FAIL1: BRepLib::BuildCurve3d() has failed
DONE1: 3d curve was added.
"""
...
def fixVertexTolerance(self) -> bool:
"""
Increases the tolerances of the edge vertices to comprise
the ends of 3d curve and pcurve on the given face
(first method) or all pcurves stored in an edge (second one)
Returns: True, if tolerances have been increased, otherwise False
Status:
OK : the original tolerances have not been changed
DONE1: the tolerance of first vertex has been increased
DONE2: the tolerance of last vertex has been increased.
"""
...
def fixReversed2d(self) -> bool:
"""
Fixes edge if pcurve is directed opposite to 3d curve
Check is done by call to the function
ShapeAnalysis_Edge::CheckCurve3dWithPCurve()
Warning: For seam edge this method will check and fix the pcurve in only
one direction. Hence, it should be called twice for seam edge:
once with edge orientation FORWARD and once with REVERSED.
Returns: False if nothing done, True if reversed (status DONE)
Status: OK - pcurve OK, nothing done
FAIL1 - no pcurve
FAIL2 - no 3d curve
DONE1 - pcurve was reversed.
"""
...
def fixSameParameter(self) -> bool:
"""
Tries to make edge SameParameter and sets corresponding
tolerance and SameParameter flag.
First, it makes edge same range if SameRange flag is not set.
If flag SameParameter is set, this method calls the
function ShapeAnalysis_Edge::CheckSameParameter() that
calculates the maximal deviation of pcurves of the edge from
its 3d curve. If deviation > tolerance, the tolerance of edge
is increased to a value of deviation. If deviation < tolerance
nothing happens.
If flag SameParameter is not set, this method chooses the best
variant (one that has minimal tolerance), either
a. only after computing deviation (as above) or
b. after calling standard procedure BRepLib::SameParameter
and computing deviation (as above). If 'tolerance' > 0, it is
used as parameter for BRepLib::SameParameter, otherwise,
tolerance of the edge is used.
Use : Is to be called after all pcurves and 3d curve of the edge are
correctly computed
Remark : SameParameter flag is always set to True after this method
Returns: True, if something done, else False
Status : OK - edge was initially SameParameter, nothing is done
FAIL1 - computation of deviation of pcurves from 3d curve has failed
FAIL2 - BRepLib::SameParameter() has failed
DONE1 - tolerance of the edge was increased
DONE2 - flag SameParameter was set to True (only if
BRepLib::SameParameter() did not set it)
DONE3 - edge was modified by BRepLib::SameParameter() to SameParameter
DONE4 - not used anymore
DONE5 - if the edge resulting from BRepLib has been chosen, i.e. variant b. above
(only for edges with not set SameParameter).
"""
...
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