# Change scene to polar azimuthal equal area

**URL:** <https://community.cesium.com/t/change-scene-to-polar-azimuthal-equal-area/1902>\
**Category:** CesiumJS\
**Created:** [January 26, 2015, 4:01pm UTC](https://community.cesium.com/t/change-scene-to-polar-azimuthal-equal-area/1902 "2015-01-26T16:01:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sean.kain.geo](https://avatars.discourse-cdn.com/v4/letter/s/8797f3/32.png) [@sean.kain.geo](https://community.cesium.com/u/sean.kain.geo)\
**Post date:** [January 26, 2015, 4:01pm UTC](https://community.cesium.com/t/change-scene-to-polar-azimuthal-equal-area/1902/1 "2015-01-26T16:01:17Z")

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Is there a clean way to add a new projection and corresponding scene mode? For many projections I feel it would be possible to use the 2D scene mode but I was looking to do a polar azimuthal equal area as seen here in D3 documentation:

[http://bl.ocks.org/mbostock/4364903](http://bl.ocks.org/mbostock/4364903)

Apologies if this has been asked before I could not find an exact match in a search of the existing threads

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**Author:** ![patrick](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/patrick/32/2045_2.png) [@patrick](https://community.cesium.com/u/patrick)\
**Post date:** [January 26, 2015, 11:26pm UTC](https://community.cesium.com/t/change-scene-to-polar-azimuthal-equal-area/1902/2 "2015-01-26T23:26:28Z")

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These should be a good starting point:

> [https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Core/GeographicProjection.js](https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Core/GeographicProjection.js)

> 

> [https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Core/WebMercatorProjection.js](https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Core/WebMercatorProjection.js)

Patrick