Method PER_1000_FACT

When the method PER_1000_FACT is used a number of chords (Li) with equal length (=1000) are computed along the curve. For each of the chords the maximum distance xi is calculated.

Figure 2:9. Calculations performed for method PER_1000 _FACT.

Let the biggest of these xi values be called X. If (CVAL*<profile length>) > X then the profile is considered to be straight.