geos.GEOSInterpolate ⇒ number ⏏
Measuring from start of line, return point that is distance the start. Line parameter must be a LineString. The returned point is not guaranteed to intersect the line due to limitations of floating point calculations.
Kind: Exported member
Returns: number - A new GEOSGeometry pointer representing the interpolated point, or NULL on exception.
See: https://libgeos.org/doxygen/geos__c_8h.html#a1849
| Param | Type | Description |
|---|---|---|
| line | number | The GEOSGeometry pointer of the lineal geometry. |
| distance | number | The distance along the linestring to interpolate. |
geos.GEOSInterpolateNormalized ⇒ number ⏏
Returns the point along line g representing the given distance from the origin along the geometry. The distance is normalized to the length of g, which must be a lineal geometry.
Kind: Exported member
Returns: number - A pointer to a new GEOSGeometry object representing the interpolated point, or NULL on error.
See: https://rdrr.io/cran/geos/man/geos_project.html
| Param | Type | Description |
|---|---|---|
| g | number | A pointer to a GEOSGeometry object representing a lineal geometry. |
| d | number | The normalized distance along the linestring to interpolate. |
geos.GEOSInterpolateNormalized_r ⇒ number ⏏
Returns the point along line g representing the given distance from the origin along the geometry. The distance is normalized to the length of g, which must be a lineal geometry. This is a thread-safe variant of GEOSInterpolateNormalized that takes a GEOS context handle as an argument.
Kind: Exported member
Returns: number - A pointer to a new GEOSGeometry object representing the interpolated point, or NULL on error.
See: https://github.com/libgeos/geos/blob/main/capi/geos_c.h.in
| Param | Type | Description |
|---|---|---|
| handle | number | A pointer to a GEOSContextHandle_t object. |
| g | number | A pointer to a GEOSGeometry object representing a lineal geometry. |
| d | number | The normalized distance along the linestring to interpolate. |
geos.GEOSInterpolate_r ⇒ number ⏏
Measuring from start of line, return point that is distance the start. Line parameter must be a LineString. The returned point is not guaranteed to intersect the line due to limitations of floating point calculations.
Kind: Exported member
Returns: number - A new GEOSGeometry pointer representing the interpolated point, or NULL on exception.
See: https://libgeos.org/doxygen/geos__c_8h.html#a1850
| Param | Type | Description |
|---|---|---|
| handle | number | A pointer to the GEOS context handle. |
| line | number | The GEOSGeometry pointer of the lineal geometry. |
| distance | number | The distance along the linestring to interpolate. |