# Ignore Trims is ignored

**URL:** <https://discourse.mcneel.com/t/ignore-trims-is-ignored/49956>\
**Category:** Rhino for Mac\
**Created:** [November 23, 2017, 1:28pm UTC](https://discourse.mcneel.com/t/ignore-trims-is-ignored/49956 "2017-11-23T13:28:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![anon55473861](https://avatars.discourse-cdn.com/v4/letter/a/34f0e0/32.png) [@anon55473861](https://discourse.mcneel.com/u/anon55473861)\
**Post date:** [November 23, 2017, 1:28pm UTC](https://discourse.mcneel.com/t/ignore-trims-is-ignored/49956/1 "2017-11-23T13:28:16Z")

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i believe this worked at some point? tried on several surfaces.

 ![17](https://global.discourse-cdn.com/mcneel/original/3X/d/f/df654b8f3e4dbd009a73cc46e87aefe00e25129e.png)

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**Author:** ![Helvetosaur](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/helvetosaur/32/635974_2.png) [@Helvetosaur](https://discourse.mcneel.com/u/Helvetosaur)\
**Post date:** [November 29, 2017, 10:26am UTC](https://discourse.mcneel.com/t/ignore-trims-is-ignored/49956/3 "2017-11-29T10:26:20Z")

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Seems to be working according to the Help, however seems like a strange and misleading option… (I assume you wanted to extract the isocurve of the entire untrimmed surface, which this option does not do)

 ![image](https://global.discourse-cdn.com/mcneel/original/3X/d/5/d5d2581fc5ee41c993eb93f04daf79bc7eb970fe.png)

–Mitch

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<div class="post-metadata">

**Author:** ![anon55473861](https://avatars.discourse-cdn.com/v4/letter/a/34f0e0/32.png) [@anon55473861](https://discourse.mcneel.com/u/anon55473861)\
**Post date:** [November 29, 2017, 1:31pm UTC](https://discourse.mcneel.com/t/ignore-trims-is-ignored/49956/4 "2017-11-29T13:31:19Z")

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yup strange. i really had the feeling it would extract the untrimmed isocurve.  
now where did i get this idea from… thanks for clearing that up.