HD63626: PART: DATA SIZE INCREASES SIGNIFICANTLY EVEN THOUGH CATDUA IS A PPLIED AND ONLY A SMALL PART OF SKETCH IS MODIFIED

APAR status

• Closed as user error.

Error description

• PART: DATA SIZE INCREASES SIGNIFICANTLY
  EVEN THOUGH CATDUA IS APPLIED AND ONLY A
  SMALL PART OF SKETCH IS MODIFIED
  .
  SCENARIO:
  1) Launch CATIA session and open model file
  SAMPLE.CATPart.
  = Original file size is 223MB.
  2) Select File-Desk and select CATDUAV5 in
  contextual menu of model name and set check
  mark to Clean and click Run.
  3) Select File-SaveAs and perform it.
  = The file size becomes 161MB.
  4) Double click at sketch of Sketch-Lwr shear tie
  web-stgr-FS and sketcher window is launched.
  5) Double click at value of constraint Offset.9418
  and change value from 1 inch to 0.9 inch and click
  OK.
  6) Exit sketcher and perform File-SaveAs. Please
  ignore warning message appears.
  .
  OBSERVATION:
  The File size of the saved file changes to 234MB.
  By performing CATDUA clean, 223 MB file size of
  original model file size decreases to 161 MB. After
  that, by modifying sketch of the model file, about
  70 MB file size is added to decreased file size (161
  MB) and file size becomes to be 234 MB.
  1- Before CATDUA: 223MB
  2- After CATDUA: 161MB
  3- After modifying sketch: 234MB
  .
  

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

• Incident Diagnosis:
  As explained in the documentation, the goal of
  FGM_1 rule is to optimize the size of the model.
  After operation, FGM_1 can be used to
  unextrapolate oversized extrapolations.
  The cleaning of those oversized extrapolations can
  have an important impact on the performances (as
  all the model has to be scan for internal reason).
  That is why this operation is only done on demand
  in CATDUA. After removing of unnecessary
  geometric data, the Part is the same but smaller.
  .
  Correct Application:
  In the scenario, a modification is done on the
  model after clean. This modification (a sketch)
  leads to an update of the model. In this precise
  case, some extrapolations have been re-done.
  They cannot be avoided during the update.
  As explained in the documentation, FGM_1 will
  detect again something to clean after this update,
  even if the initial model was cleaned. This explain
  the increase in data size after modification in the
  sketch.
  .
  Documentation Reference:
  CATIA Infrastructure User Guide / Basic Tasks /
  The List of the Return Codes Detected by the
  CATDUA V5
  .
  

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