HD64997: FSS : DRAFT ANALYSIS : THE RESULT OF DRAFT ANALYSIS IS WRONG

APAR status

• Closed as Permanent restriction.

Error description

• FSS : DRAFT ANALYSIS : THE RESULT OF DRAFT
  ANALYSIS IS WRONG
  .
  SCENARIO:
  1. Open ABC.CATPart in FSS Workbench.
  2. Click on 'Customize View Parameters' icon
  in "View mode" toolbar. "View Mode Customization"
  window is displayed.
  3. Check ON Material option.
  4. Click OK to "View Mode Customization" window.
  5. Double-click "Free Form Analysis / Draft
  Analysis.1" in specification tree. "Draft Analysis"
  window is displayed.
  6. Check ON Color Scale option.
  7. Check ON On The Fly option
  .
  OBSERVATION:
  The on fly option and color scale color do not give
  same result.
  .
  

Local fix

Problem summary

• FSS : DRAFT ANALYSIS : THE RESULT OF DRAFT ANALYSIS IS WRONG
  FSS : DRAFT ANALYSIS : THE RESULT OF DRAFT
  ANALYSIS IS WRONG
  .
  SCENARIO:
  1. Open ABC.CATPart in FSS Workbench.
  2. Click on 'Customize View Parameters' icon
  in "View mode" toolbar. "View Mode Customization"
  window is displayed.
  3. Check ON Material option.
  4. Click OK to "View Mode Customization" window.
  5. Double-click "Free Form Analysis / Draft
  Analysis.1" in specification tree. "Draft Analysis"
  window is displayed.
  6. Check ON Color Scale option.
  7. Check ON On The Fly option
  .
  OBSERVATION:
  The on fly option and color scale color do not give
  same result.
  .
  

Problem conclusion

• null
  ==========*===========*==========
  THIS PROBLEM IS PERMANENT RESTRICTION IN
  CATIA
  Incident Diagnosis
  The ?color scale? and ?on fly? option does not give
  the same result in this case.
  Restriction Explanation
  The draft analysis (shading) has a precision of
  0.1deg. This is due to various factor, one of them is
  the discretization of the image that is mapped on
  the surface. In other term, the color scale is
  translated internally into an image that has a size
  that depends on OS and graphic card. It is
  generally 4096 pix on windows and generally 1024
  on Unix.
  The maximum range of the color scale is -180 to
  +180 so the interval is 360deg. If the image size is
  4096pix, one pixel is used for an interval of : 360 /
  4096 = 0,08789 deg/pix
  As a matter of fact the values 0 and 0.04 can have
  the same pixel
  By-Pass
  1. Starting from R18, the shader mode has a better
  precision in term of image discretization. Using
  shader mode will give you correct colors in this
  scenario.
  2. Knowing the imprecision of the command
  (0.1deg), the user can modify the value of the
  color scale to be sure. For example, in this case,
  the user enters 0.1 deg instead of 0 so that
  everything that is colored in green is over 0.
  .
  

Temporary fix

Comments

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