# How to access image properties imported into 3D slicer

**URL:** <https://discourse.slicer.org/t/how-to-access-image-properties-imported-into-3d-slicer/27074>\
**Category:** Development\
**Tags:** python, rendering\
**Created:** [January 6, 2023, 5:16am UTC](https://discourse.slicer.org/t/how-to-access-image-properties-imported-into-3d-slicer/27074 "2023-01-06T05:16:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dsa934](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/dsa934/32/17907_2.png) [@dsa934](https://discourse.slicer.org/u/dsa934)\
**Post date:** [January 6, 2023, 5:16am UTC](https://discourse.slicer.org/t/how-to-access-image-properties-imported-into-3d-slicer/27074/1 "2023-01-06T05:16:26Z")

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Operating system: window 11  
Slicer version: 4.13.0

Hi all ,

Actually This’s my final question for first project.

If you import mesh data (.ply file) into 3d slicer, it will be rendered within RAS coordinates.  
I want to access the vtkpoly file for the mesh data rendered within the RAS coordinates of this 3D slicer. What should I refer to the function name for?

‘within RAS coordinate’ meaning :

As I understand it, all mesh data (.ply files) use the same world coordinate system, but their relative positions are not the same.

So, I understood that 3D sclier approximates and renders mesh data within the RAS coordinate system.

I would like to access the mesh data properties after this process.

What should I refer to?