Download 3D Polar Strain Map app from the page and install the app.
This app requires four input columns: time, angle, depth and strain. And groups for time, angle and depth must be balanced.
Operation:
- Select columns for Time, Angle, Depth, and Strain. 
- In the Settings branch, set Numbers of Depths to Plot, adjust Minimum and Maximum in Strain Range in Colormap, and set Transparency. 
- Click OK button. A 3D polar graph will be created. 
