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stzGeoPoints

30 méthodes propres · 1 formes avec extensions, rangées sous leur méthode

la source: base/geo/stzGeoPoints.ring(s'ouvre dans un nouvel onglet) · Toutes les classes · La référence du domaine : Géographie et cartographie

Sous chaque méthode, ses extensions (Q CS XT Z ZZ IB W U) : en gras et cochée, elle existe ; barrée, elle n'existe pas. Les extensions et leur sens

Exemples : 0 viennent des tests de la bibliothèque ; 23 ont été composés à partir de la signature de chaque méthode et exécutés pour cette page, sur un objet neuf, par exemple cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}' oW = StzGeoFeaturesFromJson(cJ) o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW). 7 méthodes n'en ont pas encore. Exemples exécutés le 2026-10-04 07:31 dans la bibliothèque au commit 0e72e2e2c.

Méthode

Explication, telle que la source la porte

init

(sans commentaire dans la source : le nom se lit comme une phrase) initaucune extension

Points

(sans commentaire dans la source : le nom se lit comme une phrase) points

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.Points() )
#--> [ 1, 1, 2, 2, 3, 3 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

Count

(sans commentaire dans la source : le nom se lit comme une phrase) count

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? o1.Count()
#--> 3

composé à partir de la signature, exécuté pour cette page

aucune extension

Window

(sans commentaire dans la source : le nom se lit comme une phrase) windowaucune extension

WindowRings

the window as the engine takes it: every part's OUTER ring. Built once at birth and handed out rather than rebuilt, because GE7b's fields ask for it per call and rebuilding would be the same list twice.

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.WindowRings() )
#--> [ [ 0, 0, 4, 0, 4, 4, 0, 4, 0, 0 ] ]

composé à partir de la signature, exécuté pour cette page

aucune extension

AreaKm2

(sans commentaire dans la source : le nom se lit comme une phrase) area km2

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? o1.AreaKm2()
#--> 196869.60

composé à partir de la signature, exécuté pour cette page

aucune extension

WindowBox

THE WINDOW'S BOUNDING BOX, which is not the window. Every simulation in this plane places candidates in the box and rejects those outside the window, so the box is part of the engine's contract and a caller building a process needs it too.

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.WindowBox() )
#--> [ 0, 0, 4, 4 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

BoxAreaKm2

...and how much ground the BOX covers, which a CLUSTER process needs and the window's own area cannot answer. Parents are drawn in the box rather than in the window on purpose: a cluster whose centre falls just outside still throws children in, and dropping those parents would leave the window's edge visibly emptier than its middle -- the same edge effect Ripley's K corrects for, met on the generating side.

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? o1.BoxAreaKm2()
#--> 196869.60

composé à partir de la signature, exécuté pour cette page

aucune extension

PerimeterKm

the window's outline, km -- what Donnelly's edge correction needs

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? o1.PerimeterKm()
#--> 1778.04

composé à partir de la signature, exécuté pour cette page

aucune extension

Outside

how many of the points fall outside the window they were said to be observed in. Reported, never dropped: a well across the border is a fact about the data, and a density computed as if it were inside is wrong by one well.

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? o1.Outside()
#--> 0

composé à partir de la signature, exécuté pour cette page

aucune extension

DensityPerKm2

(sans commentaire dans la source : le nom se lit comme une phrase) density per km2

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? o1.DensityPerKm2()
#--> 0.00

composé à partir de la signature, exécuté pour cette page

aucune extension

NearestNeighbourKm

the measures

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.NearestNeighbourKm() )
#--> [ 157.23, 157.18, 157.18 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

ClarkEvans

EDGE-CORRECTED, BY DONNELLY. Uncorrected, the index leans toward "dispersed" on every real window -- a point near the border has no neighbours beyond it -- and five hundred uniform points in a window the shape of a country read as dispersed at z = 2.0 the first time this ran. The correction uses the window's perimeter, which is why a pattern carries its window. ClarkEvansUncorrected() is the naive one, for comparison and for readers who know the older literature.

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.ClarkEvans() )
#--> [ [ "r", 0.91 ], [ "z", -0.26 ], [ "observed", 157.19 ], [ "expected", 172.58 ], [ "verdict", "random" ] ]

composé à partir de la signature, exécuté pour cette page

QCSXTZZZIBWU

ClarkEvansUncorrected

Same as ClarkEvansXT: EDGE-CORRECTED, BY DONNELLY. Uncorrected, the index leans toward "dispersed" on every real window -- a point near the border has no neighbours beyond it -- and five hundred uniform points in a window the shape of a country read as dispersed at z = 2.0 the first time this ran. The correction uses the window's perimeter, which is why a pattern carries its window. ClarkEvansUncorrected() is the naive one, for comparison and for readers who know the older literature. (extended form: takes an options list)

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.ClarkEvansUncorrected() )
#--> [ [ "r", 1.23 ], [ "z", 0.74 ], [ "observed", 157.19 ], [ "expected", 128.09 ], [ "verdict", "random" ] ]

composé à partir de la signature, exécuté pour cette page

aucune extension

RipleyK

Ripley's K at each radius, UNCORRECTED FOR THE EDGE. Points near the window's border have fewer neighbours within r than they would in an infinite plane, so K falls short at large r. This is not corrected by formula; it is answered by Envelope(), which simulates the null under the same edge.

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.RipleyK([ 100, 200, 300 ]) )
#--> [ 0, 131246.40, 131246.40 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

L(r) = sqrt(K / pi) - r: flat at zero under randomness, above it clustered, below it dispersed -- the form a reader can see

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.L([ 100, 200, 300 ]) )
#--> [ -100, 4.39, -95.61 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

(sans commentaire dans la source : le nom se lit comme une phrase) g

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.G([ 100, 200, 300 ]) )
#--> [ 0, 1, 1 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

(sans commentaire dans la source : le nom se lit comme une phrase) faucune extension

Envelope

[ [ lo, hi, mean ], ... ] per radius, over pnSims uniform patterns of this pattern's own count in its own window. Thirty-nine is the classic count: an observed K outside the band of 39 is significant at 5% on each side.aucune extension

EnvelopeL

the same band in L form, so it plots against L()aucune extension

MeanCentre

where the middle is, and how it spreads

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.MeanCentre() )
#--> [ 2.00, 2.00 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

SpatialMedian

(sans commentaire dans la source : le nom se lit comme une phrase) spatial median

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.SpatialMedian() )
#--> [ 2.00, 2.00 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

Ellipse

[ :lon, :lat, :sd, :major, :minor, :bearing ] -- the centre, the standard distance in km, the semi-axes at one standard deviation, and the bearing of the major axis clockwise from north

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.Ellipse() )
#--> [ [ "lon", 2.00 ], [ "lat", 2.00 ], [ "sd", 128.36 ], [ "major", 181.53 ], [ "minor", 0.07 ], [ "bearing", 44.98 ] ]

composé à partir de la signature, exécuté pour cette page

aucune extension

EllipseRing

the ellipse as a lon/lat ring a projection can draw

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.EllipseRing(2) )
#--> [ 3.15, 3.15, 1.42, 1.42, 1.42, 1.42 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

Sample

making patterns, seeded -------------------------------------------- uniform ON THE SPHERE inside the window, by rejection in its box

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.Sample(2, 5) )
#--> [ 1.13, 2.91, 0.31, 0.13 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

SampleClustered

a Matern cluster process: parents uniform, children uniform in a disk round each, kept only inside the window

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.SampleClustered(2, 5, 2, 2) )
#--> [ 2.53, 3.97, 2.54, 3.98, 2.53, 3.97, 2.54, 3.98, 2.52, 3.98, 3.19, 1.86, 3.20, 1.88, 3.21, 1.85, 3.20, 1.85, 3.20, 1.88 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

SampleDispersed

a hard-core process: no two points closer than pnMinKm. Fewer than asked when the window cannot hold that many discs -- read the count.

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? @@( o1.SampleDispersed(2, 5, 2) )
#--> [ 0.70, 0.13, 1.19, 0.00 ]

composé à partir de la signature, exécuté pour cette page

aucune extension

With

the same pattern object, on a new set of points in the same windowaucune extension

Findings

what the gate owes a patternaucune extension

IsSound

(sans commentaire dans la source : le nom se lit comme une phrase) is sound

exemple composé

cJ = '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{"name":"A"},"geometry":{"type":"Polygon","coordinates":[[[0,0],[4,0],[4,4],[0,4],[0,0]]]}}]}'
oW = StzGeoFeaturesFromJson(cJ)
o1 = StzGeoPoints([ 1, 1, 2, 2, 3, 3 ], oW)
? o1.IsSound()
#--> 1

composé à partir de la signature, exécuté pour cette page

aucune extension