geos.GEOSSegmentIntersection ⇒ number ⏏
Computes the intersection point of two line segments, if there is one.
Kind: Exported member
Returns: number - 1 if an intersection point is found, 0 if no intersection point is found, or -1 on error.
| Param | Type | Description |
|---|---|---|
| p0x | number | The x-coordinate of the first endpoint of the first segment. |
| p0y | number | The y-coordinate of the first endpoint of the first segment. |
| p1x | number | The x-coordinate of the second endpoint of the first segment. |
| p1y | number | The y-coordinate of the second endpoint of the first segment. |
| q0x | number | The x-coordinate of the first endpoint of the second segment. |
| q0y | number | The y-coordinate of the first endpoint of the second segment. |
| q1x | number | The x-coordinate of the second endpoint of the second segment. |
| q1y | number | The y-coordinate of the second endpoint of the second segment. |
| rx | number | A pointer to a double where the x-coordinate of the intersection point will be stored, if any. |
| ry | number | A pointer to a double where the y-coordinate of the intersection point will be stored, if any. |
geos.GEOSSegmentIntersection_r ⇒ number ⏏
Computes the intersection point of two line segments, if there is one. This is a reentrant version that takes a GEOS context handle as an argument.
Kind: Exported member
Returns: number - 1 if an intersection point is found, 0 if no intersection point is found, or -1 on error.
| Param | Type | Description |
|---|---|---|
| handle | number | A pointer to the GEOS context handle. |
| p0x | number | The x-coordinate of the first endpoint of the first segment. |
| p0y | number | The y-coordinate of the first endpoint of the first segment. |
| p1x | number | The x-coordinate of the second endpoint of the first segment. |
| p1y | number | The y-coordinate of the second endpoint of the first segment. |
| q0x | number | The x-coordinate of the first endpoint of the second segment. |
| q0y | number | The y-coordinate of the first endpoint of the second segment. |
| q1x | number | The x-coordinate of the second endpoint of the second segment. |
| q1y | number | The y-coordinate of the second endpoint of the second segment. |
| rx | number | A pointer to a double where the x-coordinate of the intersection point will be stored, if any. |
| ry | number | A pointer to a double where the y-coordinate of the intersection point will be stored, if any. |