| 7 | | I'll extend the concept, instead of just "extrapolate" a linestring in the end and start, we can extrapolate a segment, like ST_SetPoint, where we can extend a segment specifying the segment id (0 for first -1 for the last one). This is a way to do it, but I don't know if is the best interpretation to get concept functions in a general way, or maybe is just too general, but it is flexible. |
| | 7 | I'll extend the concept, instead of just "extrapolate" a linestring in the end and start, we can extrapolate a segment, like ST_SetPoint, where we can extend a segment specifying the segment id (0 for first -1 for the last one). This is a way to do it, but I don't know if is the best concept for the function maybe is too general, but it is flexible. |
