# About measuring dimensions

**URL:** <https://forum.kirupa.com/t/about-measuring-dimensions/181031>\
**Category:** flash\
**Created:** [March 5, 2006, 9:40pm UTC](https://forum.kirupa.com/t/about-measuring-dimensions/181031 "2006-03-05T21:40:15Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![B\_L\_U\_E](https://avatars.discourse-cdn.com/v4/letter/b/ba8739/32.png) [@B\_L\_U\_E](https://forum.kirupa.com/u/B_L_U_E)\
**Post date:** [March 5, 2006, 9:40pm UTC](https://forum.kirupa.com/t/about-measuring-dimensions/181031/1 "2006-03-05T21:40:15Z")

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Let’s say I have an MC called “mainmc” with a 50x50 box inside of it. Also 50x200 textbox with a 50x50 mask over it, it scrolls etc. I’m trying to center the mainmc on the stage, but when I calculate the \_height it takes into account the invisible masked text. Is there a way to only measure what is visible in an MC? Or is there another way around this?