isUndefined

GetterReadOnly

Return true if the walker's edgeIndex is undefined.

• This method is the opposite of isValid.
• This can happen during a walk when the walker w reaches an exterior edge, for then w.edgeMate(w).isUndefined === true.
• This can also happen when methods that return a walker receive invalid input.

isUndefined: boolean

Returns - boolean

Defined in

• polyface/IndexedPolyfaceWalker.ts Line 111