Bilinear Interpolation (BI) Algorithm
Four gain values are determined in the horizontal and vertical patterns depending on the two angles and .
The gain values are weighted with their angle distances:
Figure 1. Angles and gains used for the bilinear
interpolation.
![](../../../../../images/winprop/user_guide/aman/introduction/bilinear_angles_gains.png)
![](../../../../../images/winprop/user_guide/aman/introduction/bilinear_angles_gains.png)