# Matterjs grid positioning

**URL:** <https://phaser.discourse.group/t/matterjs-grid-positioning/5109>\
**Category:** Phaser 3\
**Created:** [February 8, 2020, 9:15pm UTC](https://phaser.discourse.group/t/matterjs-grid-positioning/5109 "2020-02-08T21:15:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Retro](https://avatars.discourse-cdn.com/v4/letter/r/4491bb/32.png) [@Retro](https://phaser.discourse.group/u/Retro)\
**Post date:** [February 8, 2020, 9:15pm UTC](https://phaser.discourse.group/t/matterjs-grid-positioning/5109/1 "2020-02-08T21:15:49Z")

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Hello,  
I’m using matterjs, and trying to drag and drop different shaped sprites onto a 16x16 grid. Unfortunately, whilst some will snap, others don’t.  
I believe I need to change the anchor point (pink dot) but I don’t seem to be able to do it - any ideas?