| Chainage Point List | ChP | List of 3d points and their corresponding chainage value. | Generic Data |
| Chainage | Ch | Numeric values describing total length of the alignment projected onto the horizontal plane. | Number |
| Offset Angle | OA | Offset the query point at an angle with respect to global XY plane. | Number |
| Offset Length | OL | Offset the point at given distance from the input Line String. | Number |
| Perpendicular | P | Set 'true' if point is to be offset along a plane perpendicular to the line tangent. Set 'false' to offset globally vertical. | Boolean |