# How to load a Scalars Overlay for a Model Node via Python 

**URL:** <https://discourse.slicer.org/t/how-to-load-a-scalars-overlay-for-a-model-node-via-python/9355>\
**Category:** Support\
**Created:** [December 2, 2019, 9:26pm UTC](https://discourse.slicer.org/t/how-to-load-a-scalars-overlay-for-a-model-node-via-python/9355 "2019-12-02T21:26:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Aping](https://avatars.discourse-cdn.com/v4/letter/a/8baadc/32.png) [@Aping](https://discourse.slicer.org/u/Aping)\
**Post date:** [December 2, 2019, 9:26pm UTC](https://discourse.slicer.org/t/how-to-load-a-scalars-overlay-for-a-model-node-via-python/9355/1 "2019-12-02T21:26:19Z")

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Hello,

I want to overlay some .mgh file on model (lh.pial),  
the model can be loaded by:  
model = slicer.util.loadModel(‘lh.pial’)  
but it did not work by:  
scalar = slicer.util.loadScalarOverlay(‘surf.mgh’)  
Is there a function to overlay the .mgh on model?

Thanks so much.

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [December 2, 2019, 9:30pm UTC](https://discourse.slicer.org/t/how-to-load-a-scalars-overlay-for-a-model-node-via-python/9355/2 "2019-12-02T21:30:02Z")

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Split this topic on December 2, 2019, 9:30pm UTC

A post was merged into an existing topic: [Loading a Scalars file (.mgh) Overlay for a Model Node (.pial) via Python](https://discourse.slicer.org/t/loading-a-scalars-file-mgh-overlay-for-a-model-node-pial-via-python/9356)

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<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [December 2, 2019, 9:30pm UTC](https://discourse.slicer.org/t/how-to-load-a-scalars-overlay-for-a-model-node-via-python/9355/3 "2019-12-02T21:30:02Z")

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Closed on December 2, 2019, 9:30pm UTC