geos.GEOSPrepare ⇒ number ⏏
Creates a prepared geometry from a regular geometry.
Kind: Exported member
Returns: number - A GEOSPreparedGeometry pointer, or NULL on exception.
| Param | Type | Description |
|---|---|---|
| g | number | A GEOSGeometry pointer. |
geos.GEOSPrepare_r ⇒ number ⏏
Creates a prepared geometry from a regular geometry, with a context handle.
Kind: Exported member
Returns: number - A GEOSPreparedGeometry pointer, or NULL on exception.
| Param | Type | Description |
|---|---|---|
| handle | number | A GEOSContextHandle pointer. |
| g | number | A GEOSGeometry pointer. |
geos.GEOSPreparedContains ⇒ number ⏏
Tests whether a prepared geometry contains another geometry.
Kind: Exported member
Returns: number - 1 if prepGeom1 contains geom2, 0 if not, or -1 on error.
| Param | Type | Description |
|---|---|---|
| prepGeom1 | number | The pointer to the prepared geometry object that is the potential container. |
| geom2 | number | The pointer to the geometry object that is the potential containee. |
geos.GEOSPreparedContainsProperly ⇒ number ⏏
Tests whether a prepared geometry properly contains another geometry. Proper containment means that the test geometry is contained in the interior of the target geometry, and does not intersect its boundary.
Kind: Exported member
Returns: number - 1 if prepGeom1 properly contains geom2, 0 if not, or -1 on error.
| Param | Type | Description |
|---|---|---|
| prepGeom1 | number | The pointer to the prepared geometry object that is the potential container. |
| geom2 | number | The pointer to the geometry object that is the potential containee. |
geos.GEOSPreparedContainsProperly_r ⇒ number ⏏
Tests whether a prepared geometry properly contains another geometry. Proper containment means that the test geometry is contained in the interior of the target geometry, and does not intersect its boundary.
Kind: Exported member
Returns: number - 1 if prepGeom1 properly contains geom2, 0 if not, or -1 on error.
| Param | Type | Description |
|---|---|---|
| handle | number | A pointer to the GEOS context handle. |
| prepGeom1 | number | The pointer to the prepared geometry object that is the potential container. |
| geom2 | number | The pointer to the geometry object that is the potential containee. |
geos.GEOSPreparedContains_r ⇒ number ⏏
Tests whether a prepared geometry contains another geometry.
Kind: Exported member
Returns: number - 1 if prepGeom1 contains geom2, 0 if not, or -1 on error.
| Param | Type | Description |
|---|---|---|
| handle | number | A pointer to the GEOS context handle. |
| prepGeom1 | number | The pointer to the prepared geometry object that is the potential container. |
| geom2 | number | The pointer to the geometry object that is the potential containee. |
geos.GEOSPreparedCoveredBy ⇒ number ⏏
Tests whether a geometry is covered by another geometry.
Kind: Exported member
Returns: number - 1 if g2 is covered by pg1, 0 if not, -1 on exception.
| Param | Type | Description |
|---|---|---|
| pg1 | number | A pointer to a prepared geometry. |
| g2 | number | A pointer to a geometry. |
geos.GEOSPreparedCoveredBy_r ⇒ number ⏏
Tests whether a geometry is covered by another geometry, using a GEOS context handle.
Kind: Exported member
Returns: number - 1 if g2 is covered by pg1, 0 if not, -1 on exception.
| Param | Type | Description |
|---|---|---|
| handle | number | A GEOS context handle. |
| pg1 | number | A pointer to a prepared geometry. |
| g2 | number | A pointer to a geometry. |
geos.GEOSPreparedCovers ⇒ number ⏏
Tests whether a geometry covers another geometry.
Kind: Exported member
Returns: number - 1 if pg1 covers g2, 0 if not, -1 on exception.
| Param | Type | Description |
|---|---|---|
| pg1 | number | A pointer to a prepared geometry. |
| g2 | number | A pointer to a geometry. |
geos.GEOSPreparedCovers_r ⇒ number ⏏
Tests whether a geometry covers another geometry, using a GEOS context handle.
Kind: Exported member
Returns: number - 1 if pg1 covers g2, 0 if not, -1 on exception.
| Param | Type | Description |
|---|---|---|
| handle | number | A GEOS context handle. |
| pg1 | number | A pointer to a prepared geometry. |
| g2 | number | A pointer to a geometry. |
geos.GEOSPreparedCrosses ⇒ number ⏏
Tests whether a geometry crosses another geometry.
Kind: Exported member
Returns: number - 1 if pg1 crosses g2, 0 if not, -1 on exception.
| Param | Type | Description |
|---|---|---|
| pg1 | number | A pointer to a prepared geometry. |
| g2 | number | A pointer to a geometry. |
geos.GEOSPreparedCrosses_r ⇒ number ⏏
Computes whether the given geometries cross.
Kind: Exported member
Returns: number - 1 if the geometries cross, 0 if they do not, or -1 on error.
| Param | Type | Description |
|---|---|---|
| handle | number | A pointer to the GEOS context handle. |
| pg1 | number | The first prepared geometry. |
| g2 | number | The second geometry. |
geos.GEOSPreparedDisjoint ⇒ number ⏏
Computes whether the given geometries are disjoint.
Kind: Exported member
Returns: number - 1 if the geometries are disjoint, 0 if they are not, or -1 on error.
| Param | Type | Description |
|---|---|---|
| pg1 | number | The first prepared geometry. |
| g2 | number | The second geometry. |
geos.GEOSPreparedDisjoint_r ⇒ number ⏏
Computes whether the given geometries are disjoint.
Kind: Exported member
Returns: number - 1 if the geometries are disjoint, 0 if they are not, or -1 on error.
| Param | Type | Description |
|---|---|---|
| handle | number | A pointer to the GEOS context handle. |
| pg1 | number | The first prepared geometry. |
| g2 | number | The second geometry. |
geos.GEOSPreparedDistance ⇒ number ⏏
Computes the distance between two geometries using a prepared geometry for the first argument.
Kind: Exported member
Returns: number - 1 if the distance was computed successfully, 0 otherwise, or -1 on error.
| Param | Type | Description |
|---|---|---|
| pg1 | number | A pointer to the prepared geometry to compute the distance from. |
| g2 | number | A pointer to the geometry to compute the distance to. |
| dist | number | A pointer to a double variable to store the distance result. |
geos.GEOSPreparedDistanceWithin ⇒ number ⏏
Tests whether the distance between a prepared geometry and another geometry is within a specified distance.
Kind: Exported member
Returns: number - 1 if the geometries are within the distance, 0 if not, or -1 on error.
See: https://libgeos.org/doxygen/geos__c_8h.html#a6f5a0b7f6f9e3a9c4b0b8a3c1a4d4e6d
| Param | Type | Description |
|---|---|---|
| prep | number | A pointer to a GEOS prepared geometry object. |
| g2 | number | A pointer to a GEOS geometry object. |
| dist | number | A double value representing the distance threshold. |
geos.GEOSPreparedDistanceWithin_r ⇒ number ⏏
Computes the distance between a prepared geometry and another geometry, and checks if it is within a given tolerance.
Kind: Exported member
Returns: number - 1 if the geometries are within the given distance of each other, 0 if not, or -1 on error.
See: https://libgeos.org/doxygen/geos__c_8h.html#a3a9f7c0b6f9b2c6a0e3f4f5a7d8b9e5d
| Param | Type | Description |
|---|---|---|
| ctx | number | A GEOS context handle. |
| prep | number | A pointer to a prepared GEOS geometry object. |
| g | number | A pointer to a GEOS geometry object. |
| tolerance | number | A non-negative distance value. |
geos.GEOSPreparedDistance_r ⇒ number ⏏
Computes the distance between two geometries using a prepared geometry for the first argument and a GEOS context handle.
Kind: Exported member
Returns: number - 1 if the distance was computed successfully, 0 otherwise, or -1 on error.
| Param | Type | Description |
|---|---|---|
| handle | number | The GEOS context pointer handle. |
| pg1 | number | A pointer to the prepared geometry to compute the distance from. |
| g2 | number | A pointer to the geometry to compute the distance to. |
| dist | number | A pointer to a double variable to store the distance result. |
geos.GEOSPreparedGeom_destroy ⏏
Destroys a prepared geometry.
Kind: Exported member
| Param | Type | Description |
|---|---|---|
| g | number | A GEOSPreparedGeometry pointer. |
geos.GEOSPreparedGeom_destroy_r ⏏
Destroys a prepared geometry object.
Kind: Exported member
| Param | Type | Description |
|---|---|---|
| handle | number | A pointer to the GEOS context handle. |
| prepGeom | number | The pointer to the prepared geometry object to be destroyed. |
geos.GEOSPreparedIntersects ⇒ number ⏏
Computes whether the given geometries intersect.
Kind: Exported member
Returns: number - 1 if the geometries intersect, 0 if they do not, or -1 on error.
| Param | Type | Description |
|---|---|---|
| pg1 | number | The first prepared geometry. |
| g2 | number | The second geometry. |
geos.GEOSPreparedIntersects_r ⇒ number ⏏
Computes whether the given geometries intersect.
Kind: Exported member
Returns: number - 1 if the geometries intersect, 0 if they do not, or -1 on error.
| Param | Type | Description |
|---|---|---|
| handle | number | A pointer to the GEOS context handle. |
| pg1 | number | The first prepared geometry. |
| g2 | number | The second geometry. |
geos.GEOSPreparedNearestPoints ⇒ number ⏏
Computes the nearest points of two geometries.
Kind: Exported member
Returns: number - A pointer to a coordinate sequence containing the nearest points, or NULL on error.
| Param | Type | Description |
|---|---|---|
| pg1 | number | A pointer to the first prepared geometry. |
| g2 | number | A pointer to the second geometry. |
geos.GEOSPreparedNearestPoints_r ⇒ number ⏏
Computes the nearest points of two geometries using a GEOS context handle.
Kind: Exported member
Returns: number - A pointer to a coordinate sequence containing the nearest points, or NULL on error.
| Param | Type | Description |
|---|---|---|
| handle | number | The GEOS context pointer handle. |
| pg1 | number | A pointer to the first prepared geometry. |
| g2 | number | A pointer to the second geometry. |
geos.GEOSPreparedOverlaps ⇒ number ⏏
Tests whether two geometries overlap.
Kind: Exported member
Returns: number - 1 if the geometries overlap, 0 if not, -1 on exception.
| Param | Type | Description |
|---|---|---|
| pg1 | number | A pointer to the first prepared geometry. |
| g2 | number | A pointer to the second geometry. |
geos.GEOSPreparedOverlaps_r ⇒ number ⏏
Tests whether two geometries overlap, using a context handle.
Kind: Exported member
Returns: number - 1 if the geometries overlap, 0 if not, -1 on exception.
| Param | Type | Description |
|---|---|---|
| handle | number | The context handle.pointer |
| pg1 | number | A pointer to the first prepared geometry. |
| g2 | number | A pointer to the second geometry. |
geos.GEOSPreparedTouches ⇒ number ⏏
Tests whether two geometries touch at one or more points.
Kind: Exported member
Returns: number - 1 if the geometries touch, 0 if not, -1 on exception.
| Param | Type | Description |
|---|---|---|
| pg1 | number | A pointer to the first prepared geometry. |
| g2 | number | A pointer to the second geometry. |
geos.GEOSPreparedTouches_r ⇒ number ⏏
Tests whether two geometries touch at one or more points, using a context handle.
Kind: Exported member
Returns: number - 1 if the geometries touch, 0 if not, -1 on exception.
| Param | Type | Description |
|---|---|---|
| handle | number | The context handle.pointer |
| pg1 | number | A pointer to the first prepared geometry. |
| g2 | number | A pointer to the second geometry. |
geos.GEOSPreparedWithin ⇒ number ⏏
Tests whether the first geometry is within the second geometry.
Kind: Exported member
Returns: number - 1 if the first geometry is within the second geometry, 0 if not, -1 on exception.
| Param | Type | Description |
|---|---|---|
| pg1 | number | A pointer to the first prepared geometry. |
| g2 | number | A pointer to the second geometry. |
geos.GEOSPreparedWithin_r ⇒ number ⏏
Tests whether a geometry is within another geometry.
Kind: Exported member
Returns: number - 1 if pg1 is within g2, 0 otherwise, or -1 on error.
| Param | Type | Description |
|---|---|---|
| handle | number | The GEOS context pointer handle. |
| pg1 | number | A pointer to the prepared geometry to test. |
| g2 | number | A pointer to the geometry to test against. |