# Help me understand a basic G2 matching question

**URL:** <https://discourse.mcneel.com/t/help-me-understand-a-basic-g2-matching-question/154493>\
**Category:** Rhino\
**Tags:** windows\
**Created:** [February 7, 2023, 3:40pm UTC](https://discourse.mcneel.com/t/help-me-understand-a-basic-g2-matching-question/154493 "2023-02-07T15:40:35Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![Lagom](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/lagom/32/767418_2.png) [@Lagom](https://discourse.mcneel.com/u/Lagom)\
**Post date:** [October 16, 2026, 10:13pm UTC](https://discourse.mcneel.com/t/help-me-understand-a-basic-g2-matching-question/154493/9 "2026-10-16T22:13:47Z")

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Unfortunately, an old bug, [waiting to be resolved](https://discourse.mcneel.com/t/feature-request-matchsrf-to-preserve-isocurve-direction/223123) - the _Preserve isocurve direction_ option does not necessarily preserve the isocurve direction like in Alias or Catia.

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_[View the full topic](https://discourse.mcneel.com/t/help-me-understand-a-basic-g2-matching-question/154493)._