HC84952: SKETCHER OFFSET CROSSING FORM IN A SKETCH CANNOT BE OFFSETTED.

APAR status

• Closed as suggestion for future release.

Error description

• Scenario:
  1. Open 'New CATPart' file. --> Go in to 'Skecher'
  2. Sel 'Profile' icon.
  3. A line is pulled so that it may cross.
  4. Sel Menu bar --> View --> Toolbars --> Tools
  5. Sel 'Offset' icon.
  6. Sel Toolsbar --> 'Point propagation' icon
  7. Sel The drawn line (anything).
  --> However, offset is impossible.
  

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

• THIS APAR IS CONSIDERED AS A SUGGESTION FOR IMPROVEMENT FOR
  CATIA.
  
  Offset in sketcher is impossible when input wire is
  self-intersected. This is today a restriction. Same
  restriction exists in GSD parallele curve.
  
   In a short term, we enhance the system to provide a good
  error message 'Unable to compute the offset, Non manifold
  input or the wire is self-intersecting'. Control
  self-intersection with Sketcher Analysis tool.
  
   JUSTIFICATION FOR DEVLOPMENT REQUEST:
  We can distinguish 3 different enhancement requests :
  
  1/ manage in sketcher self-intersections
  resulting on the offseted wire (like in GSD parallele curve)
  This enhancement is candidate for V5R9 (when
  the input wire is not self-intersected)
  
  2/ provide a solution when the input wire is
  self-intersected.  This request seems to be a permanent
  restriction with our current technology.
  
  To be able to solve this problem, we need to enhance
  sketcher by adding offset constraint capability.
  
  Today, offset is only a 'procedural' operator, without
  associativity and without 'constraint' integration.
  
  The power-point presentation sent by customer is a solution
  based on several offset constraints applied on each curves
  of the input wire.
  
  3/ constraint offset
  I think that this need is followed through the ERD process.
  Reference of enhancement request is CUST-BODY-005.  Please
  contact IBM support or DS assignees.
  
       Remi Gonel, Part Design and Sketcher product manager.
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels