The cl-geos Reference Manual

4.1.1 cl-geos/cl-geos.asd

Source

cl-geos.asd.

Parent Component

cl-geos (system).

ASDF Systems

cl-geos.

---

4.1.2 cl-geos/src/package.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Packages

geos.

---

4.1.3 cl-geos/src/library.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• translate-from-foreign (method).
• translate-from-foreign (method).
• translate-to-foreign (method).

Internals

• %geos-bool (class).
• %geos-return (class).
• %make-context-handle (function).
• *context-handle* (special variable).
• context-handle (structure).
• context-handle-p (function).
• context-handle-pointer (reader).
• (setf context-handle-pointer) (writer).
• copy-context-handle (function).
• define-geos-fun (macro).
• error-on (reader method).
• error-on (reader method).
• finish-geos (function).
• finishgeos-r (function).
• geos-error (condition).
• geos-error-message (reader method).
• init-geos (function).
• initgeos-r (function).
• make-context-handle (function).
• register-context-handle (function).
• split-camel-case (function).

---

4.1.4 cl-geos/src/geometry.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• clone (function).
• free-translated-object (method).
• geometry (class).
• initialize-instance (method).
• translate-from-foreign (method).
• translate-to-foreign (method).
• translate-to-foreign (method).
• translate-to-foreign (method).
• translate-to-foreign (method).

Internals

• %geometry (class).
• %geometry-array (class).
• %geos-geom-clone (function).
• %geos-geom-create-collection (function).
• %geos-geom-destroy (function).
• %geos-geom-type-id (function).
• *type-map* (special variable).
• cancel-finalization-fn (reader method).
• (setf cancel-finalization-fn) (writer method).
• geos-geom-clone (function).
• geos-geom-create-collection (function).
• geos-geom-destroy (function).
• geos-geom-type-id (function).
• geos-pointer (reader method).
• (setf geos-pointer) (writer method).
• make-geos-rep (generic function).
• release-ownership (function).

---

4.1.5 cl-geos/src/coordinate-sequences.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Internals

• %geos-coord-seq-create (function).
• %geos-coord-seq-get-dimensions (function).
• %geos-coord-seq-get-ordinate (function).
• %geos-coord-seq-get-size (function).
• %geos-coord-seq-get-x (function).
• %geos-coord-seq-get-y (function).
• %geos-coord-seq-set-x (function).
• %geos-coord-seq-set-y (function).
• %geos-geom-get-coord-seq (function).
• assert-coordinate-sequence (function).
• ensure-coordinate-ring (function).
• ensure-coordinate-sequence (generic function).
• geos-coord-seq-create (function).
• geos-coord-seq-get-dimensions (function).
• geos-coord-seq-get-ordinate (function).
• geos-coord-seq-get-size (function).
• geos-coord-seq-get-x (function).
• geos-coord-seq-get-y (function).
• geos-coord-seq-set-x (function).
• geos-coord-seq-set-y (function).
• geos-geom-get-coord-seq (function).
• make-ring (function).

---

4.1.6 cl-geos/src/point.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• make-point (generic function).
• make-point* (function).
• point (class).
• xdims (method).
• xref (method).

Internals

• %geos-geom-create-point (function).
• %geos-geom-get-x (function).
• %geos-geom-get-y (function).
• cached-x (reader method).
• (setf cached-x) (writer method).
• cached-y (reader method).
• (setf cached-y) (writer method).
• ensure-point (generic function).
• geos-geom-create-point (function).
• geos-geom-get-x (function).
• geos-geom-get-y (function).
• make-geos-rep (method).
• x (method).
• y (method).

---

4.1.7 cl-geos/src/line-string.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• line-string (class).
• make-line-string (function).
• xdims (method).
• xref (method).

Internals

• %geos-geom-create-line-string (function).
• cached-coords (reader method).
• (setf cached-coords) (writer method).
• ensure-line-string (generic function).
• geos-geom-create-line-string (function).
• make-geos-rep (method).

---

4.1.8 cl-geos/src/linear-ring.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• linear-ring (class).
• make-linear-ring (function).

Internals

• %geos-geom-create-linear-ring (function).
• ensure-linear-ring (generic function).
• geos-geom-create-linear-ring (function).
• make-geos-rep (method).

---

4.1.9 cl-geos/src/polygon.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• make-polygon (function).
• polygon (class).

Internals

• %geos-geom-create-polygon (function).
• cached-holes (reader method).
• (setf cached-holes) (writer method).
• cached-shell (reader method).
• (setf cached-shell) (writer method).
• ensure-polygon (generic function).
• geos-geom-create-polygon (function).
• make-geos-rep (method).

---

4.1.10 cl-geos/src/multi-point.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• make-multi-point (function).
• multi-point (class).

Internals

• cached-points (reader method).
• (setf cached-points) (writer method).
• make-geos-rep (method).

---

4.1.11 cl-geos/src/multi-line-string.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• make-multi-line-string (function).
• multi-line-string (class).

Internals

• cached-line-strings (reader method).
• (setf cached-line-strings) (writer method).
• make-geos-rep (method).

---

4.1.12 cl-geos/src/multi-polygon.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• make-multi-polygon (function).
• multi-polygon (class).

Internals

• cached-polygons (reader method).
• (setf cached-polygons) (writer method).
• make-geos-rep (method).

---

4.1.13 cl-geos/src/io.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• *print-object-print-wkt* (special variable).
• *wkt-rounding-precision* (special variable).
• *wkt-trim-p* (special variable).
• from-wkt-string (function).
• print-object (method).
• to-wkb (function).
• to-wkt (function).
• wkb-file (function).
• wkt-string (function).

Internals

• %geos-wkbwriter-create (function).
• %geos-wkbwriter-destroy (function).
• %geos-wkbwriter-write (function).
• %geos-wktreader-create (function).
• %geos-wktreader-destroy (function).
• %geos-wktreader-read (function).
• %geos-wktwriter-create (function).
• %geos-wktwriter-destroy (function).
• %geos-wktwriter-set-rounding-precision (function).
• %geos-wktwriter-set-trim (function).
• %geos-wktwriter-write (function).
• geos-wkbwriter-create (function).
• geos-wkbwriter-destroy (function).
• geos-wkbwriter-write (function).
• geos-wktreader-create (function).
• geos-wktreader-destroy (function).
• geos-wktreader-read (function).
• geos-wktwriter-create (function).
• geos-wktwriter-destroy (function).
• geos-wktwriter-set-rounding-precision (function).
• geos-wktwriter-set-trim (function).
• geos-wktwriter-write (function).

---

4.1.14 cl-geos/src/topology-operations.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• boundary (function).
• convex-hull (function).
• difference (function).
• envelope (function).
• get-centroid (function).
• intersection (function).
• node (function).
• point-on-surface (function).
• sym-difference (function).
• unary-union (function).
• union (function).

Internals

• %geos-boundary (function).
• %geos-convex-hull (function).
• %geos-difference (function).
• %geos-envelope (function).
• %geos-get-centroid (function).
• %geos-intersection (function).
• %geos-node (function).
• %geos-point-on-surface (function).
• %geos-sym-difference (function).
• %geos-unary-union (function).
• %geos-union (function).

---

4.1.15 cl-geos/src/predicates.lisp

Source

cl-geos.asd.

Parent Component

src (module).

Public Interface

• contains-p (function).
• covered-by-p (function).
• covers-p (function).
• crosses-p (function).
• disjoint-p (function).
• equals-exact-p (function).
• equals-p (function).
• intersects-p (function).
• overlaps-p (function).
• touches-p (function).
• within-p (function).

Internals

• %geos-contains (function).
• %geos-covered-by (function).
• %geos-covers (function).
• %geos-crosses (function).
• %geos-disjoint (function).
• %geos-equals (function).
• %geos-equals-exact (function).
• %geos-intersects (function).
• %geos-is-closed (function).
• %geos-is-empty (function).
• %geos-is-ring (function).
• %geos-is-simple (function).
• %geos-is-valid (function).
• %geos-overlaps (function).
• %geos-touches (function).
• %geos-within (function).
• is-closed (function).
• is-empty (function).
• is-ring (function).
• is-simple (function).
• is-valid (function).

---

6.1.1 Special variables

Special Variable: *print-object-print-wkt* ¶

If T, prints the WKT representation of geometries in print-object.

Package

geos.

Source

io.lisp.

Special Variable: *wkt-rounding-precision* ¶

Set the precision of the output. If -1, prints the maximum precision.

Package

geos.

Source

io.lisp.

Special Variable: *wkt-trim-p* ¶

If non-NIL, the number of decimals in WKT output is trimmed to the minimum necessary.

Package

geos.

Source

io.lisp.

---

6.1.2 Ordinary functions

Function: boundary (geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: clone (geometry) ¶

Clone the geometry.

Package

geos.

Source

geometry.lisp.

Function: contains-p (geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: convex-hull (geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: covered-by-p (geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: covers-p (geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: crosses-p (geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: difference (geometry-1 geometry-2) ¶

Package

geos.

Source

topology-operations.lisp.

Function: disjoint-p (geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: envelope (geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: equals-exact-p (geometry-1 geometry-2 tolerance) ¶

Package

geos.

Source

predicates.lisp.

Function: equals-p (geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: from-wkt-string (string) ¶

Package

geos.

Source

io.lisp.

Function: get-centroid (geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: intersection (geometry-1 geometry-2) ¶

Package

geos.

Source

topology-operations.lisp.

Function: intersects-p (geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: make-line-string (coords) ¶

Make a line string. COORDS must a a sequence of x-y coordinates.

Package

geos.

Source

line-string.lisp.

Function: make-linear-ring (coords) ¶

Package

geos.

Source

linear-ring.lisp.

Function: make-multi-line-string (line-strings) ¶

Package

geos.

Source

multi-line-string.lisp.

Function: make-multi-point (points) ¶

Package

geos.

Source

multi-point.lisp.

Function: make-multi-polygon (polygons) ¶

Package

geos.

Source

multi-polygon.lisp.

Function: make-point* (x y) ¶

Package

geos.

Source

point.lisp.

Function: make-polygon (shell &optional holes) ¶

Given a boundary as a linear-ring and a list of holes (also linear-rings), construct a polygon.

Package

geos.

Source

polygon.lisp.

Function: node (geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: overlaps-p (geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: point-on-surface (geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: sym-difference (geometry-1 geometry-2) ¶

Package

geos.

Source

topology-operations.lisp.

Function: to-wkb (geometry &optional stream) ¶

Package

geos.

Source

io.lisp.

Function: to-wkt (geometry &optional stream) ¶

Package

geos.

Source

io.lisp.

Function: touches-p (geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: unary-union (geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: union (geometry-1 geometry-2) ¶

Package

geos.

Source

topology-operations.lisp.

Function: within-p (geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: wkb-file (geometry filespec &key if-exists) ¶

Package

geos.

Source

io.lisp.

Function: wkt-string (geometry) ¶

Package

geos.

Source

io.lisp.

---

6.1.3 Generic functions

Generic Function: make-point (coords) ¶

Make a point. COORDS must be a sequence of length two.

Package

geos.

Source

point.lisp.

Methods

Method: make-point ((coords list)) ¶

Method: make-point ((coords array)) ¶

---

6.1.4 Standalone methods

Method: free-translated-object (value (type %geometry-array) param) ¶

Package

cffi.

Source

geometry.lisp.

Method: initialize-instance :around ((self geometry) &rest initargs &key geos-pointer) ¶

Ensure that, after all Lisp side initialization and checks are complete, that a GEOS representation of the object is created and its pointer saved.

Source

geometry.lisp.

Method: print-object ((self geometry) stream) ¶

Source

io.lisp.

Method: translate-from-foreign (value (type %geometry)) ¶

Package

cffi.

Source

geometry.lisp.

Method: translate-from-foreign (value (type %geos-return)) ¶

Package

cffi.

Source

library.lisp.

Method: translate-from-foreign (value (type %geos-bool)) ¶

Package

cffi.

Source

library.lisp.

Method: translate-to-foreign ((value geometry) (type %geometry)) ¶

Package

cffi.

Source

geometry.lisp.

Method: translate-to-foreign (value (type %geometry)) ¶

Package

cffi.

Source

geometry.lisp.

Method: translate-to-foreign ((value array) (type %geometry-array)) ¶

Package

cffi.

Source

geometry.lisp.

Method: translate-to-foreign ((value list) (type %geometry-array)) ¶

Package

cffi.

Source

geometry.lisp.

Method: translate-to-foreign (value (type %geos-bool)) ¶

Package

cffi.

Source

library.lisp.

Method: xdims ((p point)) ¶

Package

xarray.

Source

point.lisp.

Method: xdims ((line line-string)) ¶

Package

xarray.

Source

line-string.lisp.

Method: xref ((p point) &rest subscripts) ¶

Package

xarray.

Source

point.lisp.

Method: xref ((line line-string) &rest subscripts) ¶

Package

xarray.

Source

line-string.lisp.

---

6.1.5 Classes

Class: geometry ¶

Top level class for any GEOS geometry.

Package

geos.

Source

geometry.lisp.

Direct subclasses

• line-string.
• multi-line-string.
• multi-point.
• multi-polygon.
• point.
• polygon.

Direct methods

• (setf cancel-finalization-fn).
• cancel-finalization-fn.
• (setf geos-pointer).
• geos-pointer.
• initialize-instance.
• print-object.
• translate-to-foreign.

Direct slots

Slot: geos-pointer ¶

The pointer to the GEOS representation of the geometry.

Initargs

:geos-pointer

Readers

geos-pointer.

Writers

(setf geos-pointer).

Slot: cancel-finalization-fn ¶

Readers

cancel-finalization-fn.

Writers

(setf cancel-finalization-fn).

Class: line-string ¶

A series of points.

Package

geos.

Source

line-string.lisp.

Direct superclasses

• geometry.
• xarray-like.

Direct subclasses

linear-ring.

Direct methods

• (setf cached-coords).
• cached-coords.
• ensure-line-string.
• make-geos-rep.
• xdims.
• xref.

Direct slots

Slot: cached-coords ¶

Initargs

:coords

Readers

cached-coords.

Writers

(setf cached-coords).

Class: linear-ring ¶

Package

geos.

Source

linear-ring.lisp.

Direct superclasses

line-string.

Direct methods

• ensure-linear-ring.
• make-geos-rep.

Class: multi-line-string ¶

Package

geos.

Source

multi-line-string.lisp.

Direct superclasses

geometry.

Direct methods

• (setf cached-line-strings).
• cached-line-strings.
• make-geos-rep.

Direct slots

Slot: cached-line-strings ¶

Initargs

:line-strings

Readers

cached-line-strings.

Writers

(setf cached-line-strings).

Class: multi-point ¶

Package

geos.

Source

multi-point.lisp.

Direct superclasses

geometry.

Direct methods

• (setf cached-points).
• cached-points.
• make-geos-rep.

Direct slots

Slot: cached-points ¶

Initargs

:points

Readers

cached-points.

Writers

(setf cached-points).

Class: multi-polygon ¶

Package

geos.

Source

multi-polygon.lisp.

Direct superclasses

geometry.

Direct methods

• (setf cached-polygons).
• cached-polygons.
• make-geos-rep.

Direct slots

Slot: cached-polygons ¶

Initargs

:polygons

Readers

cached-polygons.

Writers

(setf cached-polygons).

Class: point ¶

A single point, consisting of an x and a y component.

Package

geos.

Source

point.lisp.

Direct superclasses

• geometry.
• xarray-like.

Direct methods

• (setf cached-x).
• cached-x.
• (setf cached-y).
• cached-y.
• ensure-point.
• make-geos-rep.
• x.
• xdims.
• xref.
• y.

Direct slots

Slot: cached-x ¶

The X value of the point. Cached when retrieved from GEOS.

Initargs

:x

Readers

cached-x.

Writers

(setf cached-x).

Slot: cached-y ¶

The X value of the point. Cached when retrieved from GEOS.

Initargs

:y

Readers

cached-y.

Writers

(setf cached-y).

Class: polygon ¶

Package

geos.

Source

polygon.lisp.

Direct superclasses

geometry.

Direct methods

• (setf cached-holes).
• cached-holes.
• (setf cached-shell).
• cached-shell.
• ensure-polygon.
• make-geos-rep.

Direct slots

Slot: cached-shell ¶

Initargs

:shell

Readers

cached-shell.

Writers

(setf cached-shell).

Slot: cached-holes ¶

Initargs

:holes

Readers

cached-holes.

Writers

(setf cached-holes).

---

6.2.1 Special variables

Special Variable: *context-handle* ¶

Package

geos.

Source

library.lisp.

Special Variable: *type-map* ¶

Package

geos.

Source

geometry.lisp.

---

6.2.2 Macros

Macro: define-geos-fun (name-and-options return-type &body args) ¶

Package

geos.

Source

library.lisp.

---

6.2.3 Ordinary functions

Function: %geos-boundary (handle geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-contains (handle geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-convex-hull (handle geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-coord-seq-create (handle size dims) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: %geos-coord-seq-get-dimensions (handle s dims) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: %geos-coord-seq-get-ordinate (handle sequence idx dim value) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: %geos-coord-seq-get-size (handle s size) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: %geos-coord-seq-get-x (handle sequence idx value) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: %geos-coord-seq-get-y (handle sequence idx value) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: %geos-coord-seq-set-x (handle sequence idx value) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: %geos-coord-seq-set-y (handle sequence idx value) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: %geos-covered-by (handle geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-covers (handle geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-crosses (handle geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-difference (handle geometry-1 geometry-2) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-disjoint (handle geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-envelope (handle geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-equals (handle geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-equals-exact (handle geometry-1 geometry-2 tolerance) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-geom-clone (handle g) ¶

Package

geos.

Source

geometry.lisp.

Function: %geos-geom-create-collection (handle type geoms num-geoms) ¶

Package

geos.

Source

geometry.lisp.

Function: %geos-geom-create-line-string (handle sequence) ¶

Package

geos.

Source

line-string.lisp.

Function: %geos-geom-create-linear-ring (handle sequence) ¶

Package

geos.

Source

linear-ring.lisp.

Function: %geos-geom-create-point (handle sequence) ¶

Package

geos.

Source

point.lisp.

Function: %geos-geom-create-polygon (handle shell holes num-holes) ¶

Package

geos.

Source

polygon.lisp.

Function: %geos-geom-destroy (handle geometry-pointer) ¶

Package

geos.

Source

geometry.lisp.

Function: %geos-geom-get-coord-seq (handle g) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: %geos-geom-get-x (handle point value) ¶

Package

geos.

Source

point.lisp.

Function: %geos-geom-get-y (handle point value) ¶

Package

geos.

Source

point.lisp.

Function: %geos-geom-type-id (handle geometry) ¶

Package

geos.

Source

geometry.lisp.

Function: %geos-get-centroid (handle geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-intersection (handle geometry-1 geometry-2) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-intersects (handle geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-is-closed (handle geometry) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-is-empty (handle geometry) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-is-ring (handle geometry) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-is-simple (handle geometry) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-is-valid (handle geometry) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-node (handle geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-overlaps (handle geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-point-on-surface (handle geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-sym-difference (handle geometry-1 geometry-2) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-touches (handle geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-unary-union (handle geometry) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-union (handle geometry-1 geometry-2) ¶

Package

geos.

Source

topology-operations.lisp.

Function: %geos-within (handle geometry-1 geometry-2) ¶

Package

geos.

Source

predicates.lisp.

Function: %geos-wkbwriter-create (handle) ¶

Package

geos.

Source

io.lisp.

Function: %geos-wkbwriter-destroy (handle writer) ¶

Package

geos.

Source

io.lisp.

Function: %geos-wkbwriter-write (handle writer geometry size-out) ¶

Package

geos.

Source

io.lisp.

Function: %geos-wktreader-create (handle) ¶

Package

geos.

Source

io.lisp.

Function: %geos-wktreader-destroy (handle reader) ¶

Package

geos.

Source

io.lisp.

Function: %geos-wktreader-read (handle reader wkt) ¶

Package

geos.

Source

io.lisp.

Function: %geos-wktwriter-create (handle) ¶

Package

geos.

Source

io.lisp.

Function: %geos-wktwriter-destroy (handle writer) ¶

Package

geos.

Source

io.lisp.

Function: %geos-wktwriter-set-rounding-precision (handle writer precision) ¶

Package

geos.

Source

io.lisp.

Function: %geos-wktwriter-set-trim (handle writer trim) ¶

Package

geos.

Source

io.lisp.

Function: %geos-wktwriter-write (handle writer geometry) ¶

Package

geos.

Source

io.lisp.

Function: %make-context-handle (&key pointer) ¶

Package

geos.

Source

library.lisp.

Function: assert-coordinate-sequence (seq) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: context-handle-p (object) ¶

Package

geos.

Source

library.lisp.

Reader: context-handle-pointer (instance) ¶

Writer: (setf context-handle-pointer) (instance) ¶

Package

geos.

Source

library.lisp.

Target Slot

pointer.

Function: copy-context-handle (instance) ¶

Package

geos.

Source

library.lisp.

Function: ensure-coordinate-ring (seq) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: finish-geos (handle) ¶

Destroy a GEOS handle.

Package

geos.

Source

library.lisp.

Function: finishgeos-r (context) ¶

Package

geos.

Source

library.lisp.

Function: geos-coord-seq-create (size dims) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: geos-coord-seq-get-dimensions (sequence) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: geos-coord-seq-get-ordinate (sequence idx dim) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: geos-coord-seq-get-size (sequence) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: geos-coord-seq-get-x (sequence idx) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: geos-coord-seq-get-y (sequence idx) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: geos-coord-seq-set-x (sequence idx value) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: geos-coord-seq-set-y (sequence idx value) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: geos-geom-clone (g) ¶

Package

geos.

Source

geometry.lisp.

Function: geos-geom-create-collection (type geoms num-geoms) ¶

Package

geos.

Source

geometry.lisp.

Function: geos-geom-create-line-string (sequence) ¶

Package

geos.

Source

line-string.lisp.

Function: geos-geom-create-linear-ring (sequence) ¶

Package

geos.

Source

linear-ring.lisp.

Function: geos-geom-create-point (sequence) ¶

Package

geos.

Source

point.lisp.

Function: geos-geom-create-polygon (shell holes num-holes) ¶

Package

geos.

Source

polygon.lisp.

Function: geos-geom-destroy (geometry-pointer) ¶

Package

geos.

Source

geometry.lisp.

Function: geos-geom-get-coord-seq (g) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Function: geos-geom-get-x (point) ¶

Package

geos.

Source

point.lisp.

Function: geos-geom-get-y (point) ¶

Package

geos.

Source

point.lisp.

Function: geos-geom-type-id (geometry) ¶

Package

geos.

Source

geometry.lisp.

Function: geos-wkbwriter-create () ¶

Package

geos.

Source

io.lisp.

Function: geos-wkbwriter-destroy (writer) ¶

Package

geos.

Source

io.lisp.

Function: geos-wkbwriter-write (writer geometry stream) ¶

Package

geos.

Source

io.lisp.

Function: geos-wktreader-create () ¶

Package

geos.

Source

io.lisp.

Function: geos-wktreader-destroy (reader) ¶

Package

geos.

Source

io.lisp.

Function: geos-wktreader-read (reader wkt) ¶

Package

geos.

Source

io.lisp.

Function: geos-wktwriter-create () ¶

Package

geos.

Source

io.lisp.

Function: geos-wktwriter-destroy (writer) ¶

Package

geos.

Source

io.lisp.

Function: geos-wktwriter-set-rounding-precision (writer precision) ¶

Package

geos.

Source

io.lisp.

Function: geos-wktwriter-set-trim (writer trim) ¶

Package

geos.

Source

io.lisp.

Function: geos-wktwriter-write (writer geometry) ¶

Package

geos.

Source

io.lisp.

Function: init-geos () ¶

Return a new GEOS context handle.

Package

geos.

Source

library.lisp.

Function: initgeos-r (notice-func error-func) ¶

Package

geos.

Source

library.lisp.

Function: is-closed (geometry) ¶

Package

geos.

Source

predicates.lisp.

Function: is-empty (geometry) ¶

Package

geos.

Source

predicates.lisp.

Function: is-ring (geometry) ¶

Package

geos.

Source

predicates.lisp.

Function: is-simple (geometry) ¶

Package

geos.

Source

predicates.lisp.

Function: is-valid (geometry) ¶

Package

geos.

Source

predicates.lisp.

Function: make-context-handle () ¶

Package

geos.

Source

library.lisp.

Function: make-ring (array) ¶

Make the given array into a ring by copying the first column as the last column.

Package

geos.

Source

coordinate-sequences.lisp.

Function: register-context-handle () ¶

Package

geos.

Source

library.lisp.

Function: release-ownership (geometry) ¶

Package

geos.

Source

geometry.lisp.

Function: split-camel-case (string) ¶

Package

geos.

Source

library.lisp.

---

6.2.4 Generic functions

Generic Reader: cached-coords (object) ¶

Package

geos.

Methods

Reader Method: cached-coords ((line-string line-string)) ¶

automatically generated reader method

Source

line-string.lisp.

Target Slot

cached-coords.

Generic Writer: (setf cached-coords) (object) ¶

Package

geos.

Methods

Writer Method: (setf cached-coords) ((line-string line-string)) ¶

automatically generated writer method

Source

line-string.lisp.

Target Slot

cached-coords.

Generic Reader: cached-holes (object) ¶

Package

geos.

Methods

Reader Method: cached-holes ((polygon polygon)) ¶

automatically generated reader method

Source

polygon.lisp.

Target Slot

cached-holes.

Generic Writer: (setf cached-holes) (object) ¶

Package

geos.

Methods

Writer Method: (setf cached-holes) ((polygon polygon)) ¶

automatically generated writer method

Source

polygon.lisp.

Target Slot

cached-holes.

Generic Reader: cached-line-strings (object) ¶

Package

geos.

Methods

Reader Method: cached-line-strings ((multi-line-string multi-line-string)) ¶

automatically generated reader method

Source

multi-line-string.lisp.

Target Slot

cached-line-strings.

Generic Writer: (setf cached-line-strings) (object) ¶

Package

geos.

Methods

Writer Method: (setf cached-line-strings) ((multi-line-string multi-line-string)) ¶

automatically generated writer method

Source

multi-line-string.lisp.

Target Slot

cached-line-strings.

Generic Reader: cached-points (object) ¶

Package

geos.

Methods

Reader Method: cached-points ((multi-point multi-point)) ¶

automatically generated reader method

Source

multi-point.lisp.

Target Slot

cached-points.

Generic Writer: (setf cached-points) (object) ¶

Package

geos.

Methods

Writer Method: (setf cached-points) ((multi-point multi-point)) ¶

automatically generated writer method

Source

multi-point.lisp.

Target Slot

cached-points.

Generic Reader: cached-polygons (object) ¶

Package

geos.

Methods

Reader Method: cached-polygons ((multi-polygon multi-polygon)) ¶

automatically generated reader method

Source

multi-polygon.lisp.

Target Slot

cached-polygons.

Generic Writer: (setf cached-polygons) (object) ¶

Package

geos.

Methods

Writer Method: (setf cached-polygons) ((multi-polygon multi-polygon)) ¶

automatically generated writer method

Source

multi-polygon.lisp.

Target Slot

cached-polygons.

Generic Reader: cached-shell (object) ¶

Package

geos.

Methods

Reader Method: cached-shell ((polygon polygon)) ¶

automatically generated reader method

Source

polygon.lisp.

Target Slot

cached-shell.

Generic Writer: (setf cached-shell) (object) ¶

Package

geos.

Methods

Writer Method: (setf cached-shell) ((polygon polygon)) ¶

automatically generated writer method

Source

polygon.lisp.

Target Slot

cached-shell.

Generic Reader: cached-x (object) ¶

Generic Writer: (setf cached-x) (object) ¶

Package

geos.

Methods

Reader Method: cached-x ((point point)) ¶

Writer Method: (setf cached-x) ((point point)) ¶

The X value of the point. Cached when retrieved from GEOS.

Source

point.lisp.

Target Slot

cached-x.

Generic Reader: cached-y (object) ¶

Generic Writer: (setf cached-y) (object) ¶

Package

geos.

Methods

Reader Method: cached-y ((point point)) ¶

Writer Method: (setf cached-y) ((point point)) ¶

The X value of the point. Cached when retrieved from GEOS.

Source

point.lisp.

Target Slot

cached-y.

Generic Reader: cancel-finalization-fn (object) ¶

Package

geos.

Methods

Reader Method: cancel-finalization-fn ((geometry geometry)) ¶

automatically generated reader method

Source

geometry.lisp.

Target Slot

cancel-finalization-fn.

Generic Writer: (setf cancel-finalization-fn) (object) ¶

Package

geos.

Methods

Writer Method: (setf cancel-finalization-fn) ((geometry geometry)) ¶

automatically generated writer method

Source

geometry.lisp.

Target Slot

cancel-finalization-fn.

Generic Function: ensure-coordinate-sequence (seq) ¶

Package

geos.

Source

coordinate-sequences.lisp.

Methods

Method: ensure-coordinate-sequence ((seq list)) ¶

Method: ensure-coordinate-sequence ((seq array)) ¶

Generic Function: ensure-line-string (coords) ¶

Package

geos.

Source

line-string.lisp.

Methods

Method: ensure-line-string ((coords line-string)) ¶

Method: ensure-line-string (coords) ¶

Generic Function: ensure-linear-ring (coords-or-linear-ring) ¶

Package

geos.

Source

linear-ring.lisp.

Methods

Method: ensure-linear-ring ((linear-ring linear-ring)) ¶

Method: ensure-linear-ring (coords) ¶

Generic Function: ensure-point (coords) ¶

Package

geos.

Source

point.lisp.

Methods

Method: ensure-point ((coords point)) ¶

Method: ensure-point (coords) ¶

Generic Function: ensure-polygon (shell) ¶

Package

geos.

Source

polygon.lisp.

Methods

Method: ensure-polygon ((shell polygon)) ¶

Method: ensure-polygon (shell) ¶

Generic Reader: error-on (object) ¶

Package

geos.

Methods

Reader Method: error-on ((%geos-bool %geos-bool)) ¶

automatically generated reader method

Source

library.lisp.

Target Slot

error-on.

Reader Method: error-on ((%geos-return %geos-return)) ¶

automatically generated reader method

Source

library.lisp.

Target Slot

error-on.

Generic Reader: geos-error-message (condition) ¶

Package

geos.

Methods

Reader Method: geos-error-message ((condition geos-error)) ¶

Source

library.lisp.

Target Slot

message.

Generic Reader: geos-pointer (object) ¶

Generic Writer: (setf geos-pointer) (object) ¶

Package

geos.

Methods

Reader Method: geos-pointer ((geometry geometry)) ¶

Writer Method: (setf geos-pointer) ((geometry geometry)) ¶

The pointer to the GEOS representation of the geometry.

Source

geometry.lisp.

Target Slot

geos-pointer.

Generic Function: make-geos-rep (geometry) ¶

Given an initialized Lisp representation of GEOMETRY, create
a GEOS representation of the geometry and return the pointer to that representation.

Package

geos.

Source

geometry.lisp.

Methods

Method: make-geos-rep ((self multi-polygon)) ¶

Source

multi-polygon.lisp.

Method: make-geos-rep ((self multi-line-string)) ¶

Source

multi-line-string.lisp.

Method: make-geos-rep ((self multi-point)) ¶

Source

multi-point.lisp.

Method: make-geos-rep ((self polygon)) ¶

Source

polygon.lisp.

Method: make-geos-rep ((self linear-ring)) ¶

Source

linear-ring.lisp.

Method: make-geos-rep ((self line-string)) ¶

Source

line-string.lisp.

Method: make-geos-rep ((self point)) ¶

Source

point.lisp.

Generic Function: x (self) ¶

Package

geos.

Methods

Method: x ((self point)) ¶

Source

point.lisp.

Generic Function: y (self) ¶

Package

geos.

Methods

Method: y ((self point)) ¶

Source

point.lisp.

---