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IDProjectCategoryView StatusLast Update
0031610CommunityOCCT:Modeling Algorithmspublic2021-12-02 17:10
ReporterCarloGreen Assigned Tomsv  
PrioritynormalSeveritymajor 
Status newResolutionopen 
Platformx64, MS VC 2019OSWindows 
Product Version6.6.0 
Target Version7.7.0 
Summary0031610: Modeling Algorithms - 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 missing.

pload MODELING VISUALIZATION
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

  • DVPScaled.brep (8,682 bytes)
  • hlr_polyalgo_OK.png (4,617 bytes)
  • hlr_algo_KO.png (4,612 bytes)

Activities

CarloGreen

2020-06-13 09:16

reporter  

DVPScaled.brep (8,682 bytes)

kgv

2021-11-27 12:06

developer  

hlr_polyalgo_OK.png (4,617 bytes)

kgv

2021-11-27 12:06

developer  

hlr_algo_KO.png (4,612 bytes)

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
2021-11-27 12:06 kgv Target Version => 7.7.0
2021-11-27 12:06 kgv Summary HLRBRep_Algo removes visible edge => Modeling Algorithms - HLRBRep_Algo removes visible edge
2021-11-27 12:06 kgv Steps to Reproduce Updated
2021-11-27 12:06 kgv File Added: hlr_polyalgo_OK.png
2021-11-27 12:06 kgv File Added: hlr_algo_KO.png
2021-11-27 12:09 kgv Product Version 7.3.0 => 6.6.0