mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-03 17:56:21 +03:00
ecf4f17cb8
Extension on the 3D Offset algorithm (Mode="Complete", Join Type = "Intersection") for colliding cases to add support for new configurations of the shapes. In the previous approach the result of the offset operation was build from the offset faces using MakerVolume algorithm, without checking of the validity of these faces. The new extension is based on this approach, but now the offset faces are being checked on invalidity and rebuild in case of any. This allows (in case of successful rebuilding) to avoid creation of the unforeseen parts such as dangling parts, spikes, inverted faces in the result of offset operation. The main criteria for the validity of the faces is the coincidence of the normal direction of the offset face with the normal direction of the original face. Check for removal of invalid faces has been removed as obsolete. BRepOffset_Inter2D: Avoid excess trimming of the edges due to coincidence with other edges. BRepOffset_Inter3D: Careful treatment of the intersection of the faces connected only through vertices. Eliminating the compiler warning. Small corrections of test cases for issue CR26917
68 lines
1.8 KiB
Plaintext
68 lines
1.8 KiB
Plaintext
puts "=========================================================="
|
|
puts "0027540: Run-to-run differences in the 3D Offset algorithm"
|
|
puts "=========================================================="
|
|
puts ""
|
|
|
|
pload MODELING
|
|
|
|
restore [locate_data_file bug27540_shapes3.brep] s
|
|
explode s
|
|
|
|
# make offset operations on two shapes
|
|
# first shape
|
|
offsetparameter 1e-7 c i
|
|
# set offset 20 for top faces (normal direction 0 0 1), 0 for all other faces
|
|
offsetload s_1 0
|
|
set faces [explode s_1 f]
|
|
foreach f $faces {
|
|
mksurface surf $f
|
|
set found [regexp {Axis :([-0-9.+eE]*), ([-0-9.+eE]*), ([-0-9.+eE]*)} [dump surf] full x y z]
|
|
if {$found && abs($z - 1) < 1.e-7} {
|
|
offsetonface $f 20
|
|
}
|
|
}
|
|
offsetperform result1
|
|
checkprops result1 -s 464088
|
|
checkprops result1 -v 1.29909e+007
|
|
checknbshapes result1 -vertex 48 -edge 72 -wire 30 -face 28 -shell 1 -solid 1
|
|
|
|
|
|
# second shape
|
|
offsetparameter 1e-7 c i
|
|
# set offset 20 for top faces (normal direction 0 0 1), 0 for all other faces
|
|
offsetload s_2 0
|
|
set faces [explode s_2 f]
|
|
foreach f $faces {
|
|
mksurface surf $f
|
|
set found [regexp {Axis :([-0-9.+eE]*), ([-0-9.+eE]*), ([-0-9.+eE]*)} [dump surf] full x y z]
|
|
if {$found && abs($z - 1) < 1.e-7} {
|
|
offsetonface $f 20
|
|
}
|
|
}
|
|
offsetperform result2
|
|
checkprops result2 -s 464088
|
|
checkprops result2 -v 1.29909e+007
|
|
checknbshapes result2 -vertex 48 -edge 72 -wire 30 -face 28 -shell 1 -solid 1
|
|
|
|
|
|
# compare the results
|
|
set vertices1 [nexplode result1 v]
|
|
set vertices2 [nexplode result2 v]
|
|
|
|
set nbv1 [llength $vertices1]
|
|
|
|
for {set i 0} {$i < $nbv1} {incr i} {
|
|
set v1 [lindex $vertices1 $i]
|
|
set v2 [lindex $vertices2 $i]
|
|
|
|
mkpoint px $v1
|
|
set dump_v1 [dump px]
|
|
|
|
mkpoint px $v2
|
|
set dump_v2 [dump px]
|
|
|
|
if {$dump_v1 != $dump_v2} {
|
|
puts "Error: the results are not the same - $v1 and $v2"
|
|
}
|
|
}
|