# Heat maps for two structures

**URL:** <https://discourse.slicer.org/t/heat-maps-for-two-structures/9610>\
**Category:** Support\
**Created:** [December 25, 2019, 5:24am UTC](https://discourse.slicer.org/t/heat-maps-for-two-structures/9610 "2019-12-25T05:24:05Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Jainey](https://avatars.discourse-cdn.com/v4/letter/j/a88e57/32.png) [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Post date:** [December 25, 2019, 5:24am UTC](https://discourse.slicer.org/t/heat-maps-for-two-structures/9610/1 "2019-12-25T05:24:05Z")

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Is there a module that I can create heat maps for two segmented structures please. I want to assess the proximity of the surfaces

Thanks

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [December 25, 2019, 6:31am UTC](https://discourse.slicer.org/t/heat-maps-for-two-structures/9610/2 "2019-12-25T06:31:00Z")

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Would model-to-model distance extension work for your needs?  
[https://www.slicer.org/wiki/Documentation/Nightly/Extensions/ModelToModelDistance](https://www.slicer.org/wiki/Documentation/Nightly/Extensions/ModelToModelDistance)

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**Author:** ![Jainey](https://avatars.discourse-cdn.com/v4/letter/j/a88e57/32.png) [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Post date:** [December 25, 2019, 6:44am UTC](https://discourse.slicer.org/t/heat-maps-for-two-structures/9610/3 "2019-12-25T06:44:45Z")

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Thanks @muratmaga

I want to get proximity of 2 different structures which are in close proximity, and to create an image as shown in the icon of model to model distance  
I m non-IT, non engineering when I do model to model distance I cant get such an image

Thanks

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [December 25, 2019, 6:30pm UTC](https://discourse.slicer.org/t/heat-maps-for-two-structures/9610/4 "2019-12-25T18:30:37Z")

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I am not entirely sure what you mean by close proximity.

For model to model distance to work, you need to bring your segmentations into an alignment (you can use segment registration module to do that). While they are superimposed, model to model distance can calculate the distance between corresponding vertices of two different models, and display as a heat map on the reference model. It is assumed that you are comparing similar structured (e.g., mandible or skull before and after a surgery or repair) as oppose to total different structures (heart vs lung).