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IDProjectCategoryView StatusDate SubmittedLast Update
0031610Community[OCCT] OCCT:Modeling Algorithmspublic2020-06-13 09:162020-06-13 09:16
ReporterCarloGreen 
Assigned Tomsv 
PrioritynormalSeveritymajor 
StatusnewResolutionopen 
Platformx64, MS VC 2019OSWindowsOS Version10
Product Version[OCCT] 7.3.0 
Target VersionFixed in Version 
Summary0031610: HLRBRep_Algo removes visible edge
DescriptionThe hidden line removal algorithm declares an edge as invisible, but it should be a visible line instead.

When the HRL is activated, the edge in the top right of the view disappears. It should stay visible, since it is clearly seen by the camera.
Steps To ReproduceTo reproduce the problem, I attached a .brep file and the following drawexe script to show the problem. Compare the two views. In the second view, the edge on the top right is imissing.


pload ALL
restore DVPScaled.brep shapes
vinit
vdisplay shapes
vviewproj front
vfit

#this second view shows the problem of the missing line. Compare to the first view.
vinit
vviewproj front
vfit
vhlrtype algo
#the next line erroneously makes a line in the view disappear
vhlr on
Additional information
and documentation updates
Tested with OCCT 7.4.0 and OCCT 7.4.1-devel.
TagsNo tags attached.
Test case number
Attached Files? file icon DVPScaled.brep (8,682 bytes) 2020-06-13 09:16

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- Issue History
Date Modified Username Field Change
2020-06-13 09:16 CarloGreen New Issue
2020-06-13 09:16 CarloGreen Assigned To => msv
2020-06-13 09:16 CarloGreen File Added: DVPScaled.brep


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