GetDirection()
Summary
Gets the contents of the direction field for a line feature.
Syntax
direction = GetDirection(integer line_ id)
| Argument | Contents |
|---|---|
| line_ id | ID of a line |
Returns
An integer indicating the direction of flow:
| Value | Direction of Flow |
|---|---|
| -1 | One-way in the opposite direction from which the coordinates of the line feature are stored (reverse topological direction) |
| 0 | Two-way |
| 1 | One-way in the same direction in which the coordinates of the line feature are stored (topological direction) |
Notes
-
The current layer must be a line layer.
Example
direction = GetDirection(1023)