January 2005

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Annotation news for OSDM 2005 (13.01)
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Content

• Whats new
• New option Auto Recognition
• Overview enhancements and defect fixes

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Auto Recognition What is Auto Recognition

• What is Auto Recognition and where to find it?
  Auto Recognition is a new option to
  automatically recognize clashing parts and to
  enhance their 2D view representation. Using this
  new option ensures a deterministic representation
  in 2D.
• The option can be activated (deactivated) on
  Update Mode menu in general for new drawing /
  view creationorfor each single view - in the
  View Properties menu.

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Auto Recognition Advantages

• Advantages
• What are the advantages of Auto Recognition?
• Clashes are automatically recognized and handled
  in a better way which leads to a deterministic
  representation of views containing clashing parts
  
• Less missing and additional geometry lines after
  an update,higher reliability when updating
  drawings
• Geo resolution resistant (better than the
  pressfit option)

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Auto Recognition Usage

• Usage
• When to use the Auto Recognition option?
• If there are clashes in an assembly (especially
  micro clashes), when all or some of the parts
  that are clashing in the assembly are no real
  pressfit parts but accidentally clashing
• If you work with mixed resolution assemblies /
  parts

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Auto Recognition Order of Clash Handling

• The order of Clash Handling
• Thread handling (checks and handles parts with
  thread attributes)
• Pressfit handling (checks and handles parts with
  pressfit flags)
• Auto Recognition (checks and handles all other
  clashing parts)
• Fall Back Strategy
• Auto Recognition will be used as fallback
  strategy when the thread or pressfit checks are
  not successfully performed (1). Then the system
  automatically uses the Auto Recognition method,
  even Auto Recognition was not activated (no user
  interaction required).
• 1) Cases where the system receives a signal
  during the necessary Boolean operations (possibly
  caused by different geo resolutions of the
  parts) or where the body checker recognizes the
  Boolean result to be corrupt.

• Known Restriction
• Graphical Update is not supported by
  Auto Recognition

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Auto Recognition Examples

• Example
• 2 parts clashing for about 2 mm

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Auto Recognition Examples / Update with
different versions

• Update result with version 12.0 Several lines
  are missing after update.
• Update result with version 13.01, using Auto
  Recognition
• With version 13.01 an improved propagation
  handling was implemented and the new option Auto
  Recognition handles clashing parts in a very
  enhanced way. The view shows less missing lines,
  compared to previous versions.
• Note When unexpected clashes exist on the
  assembly, Auto Recognition will handle this
  clashes on face level and it can happen that some
  hidden lines will be represented because they
  will not be split.

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Overview Enhancements and Defect Fixes

• New view update option "Clash" -gt "Auto
  Recognition"
• New view update option "Clash" -gt "With
  pressfit".
• Retention of extension or rotation of centerlines
  / symmetry lines during view update
• Thread line creation for aligned section views
  has been improved
• Fix for "flat views got detached during
  Import_2d