0024097: BRepAlgoAPI_Section returns wrong result

(0025669)
emv (developer)
2013-09-20 10:40

There is a problem in the intersection part.
restore face1.brep b1
restore face2.brep b2
mksurface s1 b1
mksurface s2 b2
# 1. intersection with default tolerance
intersect i s1 s2
# curve i is OK
# 2. intersection with the tolerances of faces
intersect i s1 s2 2.e-4
dump i_1
dump i_2
dump i_3
dump i_4
dump i_5
# result - 5 curves, each of those consists of two identical points.

This problem can be reproduced in BOP:
restore face1.brep b1
restore face2.brep b2
bsection r b1 b2
# r is incomplete

restore face1.brep b1
restore face2.brep b2
settolerance b1 1.e-5
settolerance b2 1.e-5
bsection r b1 b2
# r is OK

(0027390)
Hayashi (reporter)
2014-01-08 10:06

Surely, the curve of one returns in 1.e-5.
However, the length of this curve is 0.125 and is very larger than the tolerance value 2.e-4.
Isn't it inaccurate that one curve cannot be returned?

(0045102)
Hayashi (reporter)
2015-09-05 07:55

This problem seems to return a result to expect by OCC6.9.1 beta.

(0045103)
abv (manager)
2015-09-05 16:03

I confirm that this issue exists in OCCT 6.8.0 and 6.9.0, but not on current master and not in OCCT 6.9.1.beta

(0045104)
git (administrator)
2015-09-05 16:10

Branch CR24097 has been created by abv.

SHA-1: ec8e990ef0ec4d589e91adbef3d084186136719c

Detailed log of new commits:

Author: abv
Date: Sat Sep 5 16:09:48 2015 +0300

    0024097: BRepAlgoAPI_Section returns wrong result

    Test case added: bugs modalg_6 bug24097

(0045105)
abv (manager)
2015-09-05 16:12

Test is put to CR24097, please integrate

(0045112)
git (administrator)
2015-09-07 07:57

Branch CR24097 has been updated by abv.

SHA-1: 650c9806e3fb2a28aa94cd635d0ba7441575848e

Detailed log of new commits:

Author: abv
Date: Mon Sep 7 07:14:41 2015 +0300

    0026627: [Regression] Shape Healing hangs as of OCC 6.8.0

    Check for orientation of the solid corrected to ensure that cycle always finishes.

    Test case added

(0045115)
git (administrator)
2015-09-07 09:01

Branch CR24097 has been updated forcibly by abv.

SHA-1: ec8e990ef0ec4d589e91adbef3d084186136719c

(0046963)
git (administrator)
2015-10-16 16:37

Branch CR24097 has been deleted by kgv.

SHA-1: ec8e990ef0ec4d589e91adbef3d084186136719c

Related Changesets
occt: master 64652908 Timestamp: 2015-09-05 13:09:48 Author: abv Committer: bugmaster [ Details ] [ Diff ]	0024097: BRepAlgoAPI_Section returns wrong result Test case added: bugs modalg_6 bug24097
	add - tests/bugs/modalg_6/bug24097	[ Diff ] [ File ]

Issue History
Date Modified	Username	Field	Change
2013-08-02 02:26	Hayashi	New Issue
2013-08-02 02:26	Hayashi	Assigned To	=> ifv
2013-08-02 02:26	Hayashi	File Added: faces.zip
2013-09-13 11:55	ifv	Assigned To	ifv => Hayashi
2013-09-13 11:55	ifv	Assigned To	Hayashi => ifv
2013-09-13 11:56	ifv	Assigned To	ifv => emv
2013-09-20 10:40	emv	Note Added: 0025669
2013-10-04 09:46	emv	Assigned To	emv => ifv
2013-10-04 09:46	emv	Status	new => assigned
2014-01-08 10:06	Hayashi	Note Added: 0027390
2015-09-05 07:55	Hayashi	Note Added: 0045102
2015-09-05 16:03	abv	Note Added: 0045103
2015-09-05 16:03	abv	Target Version	=> 6.9.1
2015-09-05 16:10	git	Note Added: 0045104
2015-09-05 16:12	abv	Note Added: 0045105
2015-09-05 16:12	abv	Assigned To	ifv => bugmaster
2015-09-05 16:12	abv	Status	assigned => feedback
2015-09-07 07:57	git	Note Added: 0045112
2015-09-07 09:01	git	Note Added: 0045115
2015-09-07 12:04	bugmaster	Status	feedback => tested
2015-09-11 14:09	bugmaster	Changeset attached	=> occt master 64652908
2015-09-11 14:09	bugmaster	Status	tested => verified
2015-09-11 14:09	bugmaster	Resolution	open => fixed
2015-10-16 14:55	aiv	Status	verified => closed
2015-10-16 16:37	git	Note Added: 0046963
2015-10-23 20:50	aiv	Fixed in Version	=> 6.9.1

Notes
(0025669) emv (developer) 2013-09-20 10:40	There is a problem in the intersection part. restore face1.brep b1 restore face2.brep b2 mksurface s1 b1 mksurface s2 b2 # 1. intersection with default tolerance intersect i s1 s2 # curve i is OK # 2. intersection with the tolerances of faces intersect i s1 s2 2.e-4 dump i_1 dump i_2 dump i_3 dump i_4 dump i_5 # result - 5 curves, each of those consists of two identical points. This problem can be reproduced in BOP: restore face1.brep b1 restore face2.brep b2 bsection r b1 b2 # r is incomplete restore face1.brep b1 restore face2.brep b2 settolerance b1 1.e-5 settolerance b2 1.e-5 bsection r b1 b2 # r is OK

(0027390) Hayashi (reporter) 2014-01-08 10:06	Surely, the curve of one returns in 1.e-5. However, the length of this curve is 0.125 and is very larger than the tolerance value 2.e-4. Isn't it inaccurate that one curve cannot be returned?

(0045102) Hayashi (reporter) 2015-09-05 07:55	This problem seems to return a result to expect by OCC6.9.1 beta.

(0045103) abv (manager) 2015-09-05 16:03	I confirm that this issue exists in OCCT 6.8.0 and 6.9.0, but not on current master and not in OCCT 6.9.1.beta

(0045104) git (administrator) 2015-09-05 16:10	Branch CR24097 has been created by abv. SHA-1: ec8e990ef0ec4d589e91adbef3d084186136719c Detailed log of new commits: Author: abv Date: Sat Sep 5 16:09:48 2015 +0300 0024097: BRepAlgoAPI_Section returns wrong result Test case added: bugs modalg_6 bug24097

(0045105) abv (manager) 2015-09-05 16:12	Test is put to CR24097, please integrate

(0045112) git (administrator) 2015-09-07 07:57	Branch CR24097 has been updated by abv. SHA-1: 650c9806e3fb2a28aa94cd635d0ba7441575848e Detailed log of new commits: Author: abv Date: Mon Sep 7 07:14:41 2015 +0300 0026627: [Regression] Shape Healing hangs as of OCC 6.8.0 Check for orientation of the solid corrected to ensure that cycle always finishes. Test case added

(0045115) git (administrator) 2015-09-07 09:01	Branch CR24097 has been updated forcibly by abv. SHA-1: ec8e990ef0ec4d589e91adbef3d084186136719c

(0046963) git (administrator) 2015-10-16 16:37	Branch CR24097 has been deleted by kgv. SHA-1: ec8e990ef0ec4d589e91adbef3d084186136719c

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