Select between Rectangular to Polar and Polar to Rectangular. Consider the following example to demonstrate the two coordinate spaces.

To demonstrate a basic tunnel effect that can be achieved with this tool,

• create some text and animate it to move along a path from the top of the frame to the bottom.
• Connect the output of the Text+ tool to a Coordinate Space tool.
• Select Polar to Rectangular from the Shape menu.

As the text moves from top to bottom along the original path, it will appear to move from an infinite distance in the Coordinate Space tool. It may be necessary to flip the text using the Transform (Xf) tool to make it appear the correct way in the Coordinate Space tool.

Another common use for the Co-ordinate Space tool is to use it in pairs, two of them set to different Shape settings with a Drip or Transform tool in between. When used in this way, the effect gets modified while the image remains the same.