sandbag
sandbag copied to clipboard
add British trad grades
British trad grades can have two parts: technical and adjectival. https://en.wikipedia.org/wiki/Grade_(climbing)#British
todo:
- [ ] #170
- [ ] #171
- [ ] #169
This is tricky for two reasons:
- Grades have both adjectival and technical components. This can be handled by adding a column for each and assigning the score of the combined grade to something like the intersection of score for each scale.
- According to my understanding, the adjectival grades overlap. For example, according to both rockfax's table, E1, E2 & E3 are all plausibly equivalent to 5.10b. Table based conversions can't handle this.