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IDProjectCategoryView StatusDate SubmittedLast Update
0031641Community[OCCT] OCCT:Modeling Algorithmspublic2020-06-29 11:222020-06-29 11:23
Assigned Tomsv 
PlatformLinux 64bitOSFedora CoreOS Version31
Product Version[OCCT] 7.3.0 
Target VersionFixed in Version 
Summary0031641: IntCurvesFace_ShapeIntersector incorrect result
DescriptionThere is a shape stored in the attached shape.brep file. IntCurvesFace_ShapeIntersector gives an icorrect results for checking intersections of this shape with lines parallel to the Z axis at particular (x,y) directions.

The application oputput is:

[(0.839, -4.675, -1.555), (0, 0, 1)]
  (0.839, -4.675, 0): out
  (0.839, -4.675, 0): in
  (0.839, -4.675, 1.5): out
[(2.304, -3.40779, -1.555), (0, 0, 1)]
  (2.304, -3.40779, 0): out

Line definition [(location),(direction)] is followed by an intended list of intersection points and their transitions in the form (intersection location): transition.

In both cases the first intersection point having the transition 'out' is errorneous. It means that the line for z < 0 is inside the shape which is not true.
Steps To ReproduceCompile and run the attached .cxx file and check the output according to the description. Note that the application needs the provided shape.brep file being placed in the same directory as the application binary.
TagsNo tags attached.
Test case number
Attached Filescxx file icon intersector.cxx (2,622 bytes) 2020-06-29 11:22
? file icon shape.brep (590,377 bytes) 2020-06-29 11:23

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- Issue History
Date Modified Username Field Change
2020-06-29 11:22 mat127 New Issue
2020-06-29 11:22 mat127 Assigned To => msv
2020-06-29 11:22 mat127 File Added: intersector.cxx
2020-06-29 11:23 mat127 File Added: shape.brep

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