> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Cylindrical and Spherical Remap

This is a special case of a Remap. We can take a shape and redefine it so that we have it in a cylindrical or spherical system instead of rectangular coordinates.

<Frame>
  <img src="https://files.learn.ntop.com/lessons/cylindrical-and-spherical-remap/321_7_1-1024x525.jpg" />
</Frame>

Let's start off with a cube. We will add a simple feature to it—in this example, a hole.

<Frame>
  <img src="https://files.learn.ntop.com/lessons/cylindrical-and-spherical-remap/321_7_2-1.gif" />
</Frame>

***

## Cylindrical Remap

The **Cylindrical Remap** takes that bit of the geometry and it revolves it -180 to 180 degrees. You can see there is some empty space and some solid space that is revolved.

The only values mapped are values along the:

* positive x-axis
* y-axis between -length/2 and +length/2.

What that means is that in and x and z, it will infinitely capture everything.

<Frame>
  <img src="https://files.learn.ntop.com/lessons/cylindrical-and-spherical-remap/321_7_3.gif" />
</Frame>

***

## Spherical Remap

The **Spherical Remap** operates in a similar way. However here, the only values that are mapped are values along the:

* positive x-axis
* y-axis between -length/2 and +length/2
* positive x-axis

<Frame>
  <img src="https://files.learn.ntop.com/lessons/cylindrical-and-spherical-remap/321_7_4.gif" />
</Frame>

<Note>
  **Note**: If you prefer to learn more about this topic through a video, our [Follow Along: Intro to Remapping](https://learn.ntop.com/lessons/follow-along-intro-to-remapping/) lesson covers all the Intro to Remapping topics in video form (Mirror, Translate, Scale, Array, Cylindrical, and Spherical Remap).
</Note>