6. Angles from Directions

Examples of computing angles from directions were covered in the VI. Directions topic. When a loop traverse is involved and all its angles are computed, the angle condition should be verified as a math check (always include a math check were possible).

Recall that the angle conditions for loop traverses are:

 Angle type Condition 
 Interior  img2
 Deflection - Even crossings img3
 Deflection - Odd crossings  img2


If the condition is not met, then a math error exists. Go back over your comps.