Learn R Programming

spatstat.geom (version 3.7-3)

Geometrical Functionality of the 'spatstat' Family

Description

Defines spatial data types and supports geometrical operations on them. Data types include point patterns, windows (domains), pixel images, line segment patterns, tessellations and hyperframes. Capabilities include creation and manipulation of data (using command line or graphical interaction), plotting, geometrical operations (rotation, shift, rescale, affine transformation), convex hull, discretisation and pixellation, Dirichlet tessellation, Delaunay triangulation, pairwise distances, nearest-neighbour distances, distance transform, morphological operations (erosion, dilation, closing, opening), quadrat counting, geometrical measurement, geometrical covariance, colour maps, calculus on spatial domains, Gaussian blur, level sets of images, transects of images, intersections between objects, minimum distance matching. (Excludes spatial data on a network, which are supported by the package 'spatstat.linnet'.)

Copy Link

Version

Install

install.packages('spatstat.geom')

Monthly Downloads

74,422

Version

3.7-3

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

March 23rd, 2026

Functions in spatstat.geom (3.7-3)

Extract.anylist

Extract or Replace Subset of a List of Things

Extract or Replace Subset of a List of Spatial Objects

Make an NA Object

Feret Box Enclosing a Domain

Extract.splitppp

Extract or Replace Sub-Patterns

Feret Diameter as a Function of Direction

Extract or Replace Subset of Tessellation

S3 Group Generic methods for List of Images

Minkowski Sum of Windows

S3 Group Generic methods for images

Extract or Change the Window of a Spatial Object

Apply Affine Transformation To Line Segment Pattern

Support Function

Reset Values in Subset of Image

Extract Window of Spatial Object

Convert Data to Three-Dimensional Box

Area of a Window

Apply Function to Every Neighbourhood in a Point Pattern

Apply Geometrical Transformation To Tessellation

Difference of Disc Areas

Orientation Angles of Line Segments

as.data.frame.owin

Convert Window to Data Frame

Convert Data to Multi-Dimensional Box

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

Difference of Disc Areas

as.function.owin

Convert Window to Indicator Function

as.data.frame.tess

Convert Tessellation to Data Frame

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

Convert to Colour Map

Convert Data To Class owin

as.function.tess

Convert a Tessellation to a Function

Pixel Image Approximation of a Window

Convert to Pixel Image

Convert a Window to a Polygonal Window

Distance to Boundary of Window

Create Colour Scheme for a Range of Numbers

Convert Data To Class ppp

Convert Data To Class psp

Multi-Dimensional Box

Smallest Enclosing Circle

Buffer Distance Tessellation

Apply Function to Image Broken Down by Factor

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Apply a Function to a Point Pattern Broken Down by Factor

Centroid of a window

Interactively Add Points

Morphological Closing

Subdivide a Window or Tessellation using a Set of Lines

Intersect Infinite Straight Lines with a Window

Interactively Define a Rectangle

Close Pairs of Points

Interactively Measure Distance

Close Pairs of Points in 3 Dimensions

Close Triples of Points

Concatenate x,y Coordinate Vectors

Colour Lookup Tables

Test Whether Objects Are Compatible

Determine A Common Spatial Domain And Pixel Resolution

Test Whether Pixel Images Are Compatible

Connected components

Connected Components of Tiles of a Tessellation

Array of Contour Plots

Contour plot of pixel image

Convex Hull of Points

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Convolution of Pixel Images

Distance Metric Defined by Convex Set

Weil's Convexifying Operation

Classify Points in a Point Pattern

Cover Region with Discs

Convert Pixel Image from Numeric to Factor

crossdist.default

Pairwise distances between two different sets of points

Pairwise distances

Pairwise distances between two different three-dimensional point patterns

Crossing Points of Two Line Segment Patterns

Diameter of an Object

Delaunay Triangulation of Point Pattern

default.symbolmap

Default Symbol Map for Plotting a Spatial Pattern

delaunayDistance

Distance on Delaunay Triangulation

default.image.colours

Default Colours for Images in Spatstat

Generate a Default Pattern of Dummy Points

Morphological Dilation

Areas of Morphological Dilations

Compute Areas of Tiles in Dirichlet Tessellation

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Geometrical Calculations for Multi-Dimensional Box

Circular Window

Area of Part of Disc

Distance Map of Window

Extract the Domain of any Spatial Object

Distance Map as a Function

Safely Convert Point Pattern Window to Binary Mask

edges2triangles

List Triangles in a Graph

Areas of Morphological Erosions

Morphological Erosion of Windows

Endpoints of Line Segment Pattern

Elliptical Window.

Morphological Erosion by a Disc

Invoke Text Editor on Spatial Data

Remove Small Holes in a Window

Fourier Basis Functions

Spatial Function Class

Farthest Distance to Boundary of Window

Exchange X and Y Coordinates

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Make Windows Compatible

harmoniseLevels

Harmonise the levels of several factors, or factor-valued pixel images.

First or Last Part of a Spatial Pattern

Histogram of Values of a Spatial Function

Histogram of Pixel Values in an Image

Check Whether Points Have Close Neighbours

Hexagonal Grid or Tessellation

Make Objects Compatible

Identify Points in a Point Pattern

Spatial Covariance of a Pixel Image

Hyper Data Frame

Find Largest Circle Inside Window

interp.colourmap

Interpolate smoothly between specified colours

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Test Whether Points Are Inside A Multidimensional Box

integral.tessfun

Integrate a Function Which is Constant on Each Tile of a Tessellation

Empirical Intensity of Point Pattern

Integral of a Pixel Image

invoke.symbolmap

Plot Data Using Graphics Symbol Map

is.connected.ppp

Determine Whether a Point Pattern is Connected

Interpolate a Pixel Image

Recognise a Multi-Dimensional Box

Determine Whether an Object is Connected

Test Whether An Object Is A Pixel Image

Test Whether An Object Is A Point Pattern on a Linear Network

Test Whether an Object is a Pixel Image on a Linear Network

Test Whether Marks Are Present

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Test whether Object is Multitype

Extract or Replace the Plot Arguments of a Layered Object

Test Whether An Object Is A Point Pattern

Test Whether An Object Is A Window

Create List of Plotting Layers

Determine Whether One Window is Contained In Another

Lengths of Line Segments

Determine Type of Window

Mean and Median of Pixel Values in an Image

Level Set of a Pixel Image

Marks of a Line Segment Pattern

Summarise Marks in Every Neighbourhood in a Point Pattern

levelset.distfun

Level Set of a Distance Function

Distance for a Point Pattern Matching

Merge Groups of Tiles in a Tessellation

Methods for Multidimensional Space-Time Point Patterns

methods.unitname

Methods for Units

methods.distfun

Geometrical Operations for Distance Functions

methods.layered

Methods for Layered Objects

Merge Levels of a Factor

Find Line Segment Nearest to Each Point

Nearest Neighbours Between Two Patterns in Any Dimensions

nearest.raster.point

Find Pixel Nearest to a Given Point

Nearest Neighbours Between Two Patterns

Nearest Neighbours in Any Dimensions

Mark of Nearest Neighbour

Nearest neighbour

Nearest Neighbour Index Map as a Function

Nearest neighbour distances

Convert Window to Binary Mask under Constraints

Compute Area of Overlap

Count Number of Geometrical Objects in a Spatial Dataset

Number of Line Segments in a Line Segment Pattern

Pairwise distances

Pad the Border of a Pixel Image

Pairwise distances between line segments

Make Periodic Copies of a Spatial Pattern

Pairwise distances in Three Dimensions

Convert Point Pattern to Pixel Image

Convert Window to Pixel Image

Convert Line Segment Pattern to Pixel Image

Plot a Colour Map

Convert Spatial Object to Pixel Image

Plot a List of Things

Draw Points or Lines on a Surface Viewed in Perspective

Quadrature Scheme Based on Pixel Grid

Plot a Three-Dimensional Point Pattern

plot a Spatial Point Pattern

plot.hyperframe

Plot Entries in a Hyperframe

Plot a List of Images

Plot a Yardstick or Scale Bar

Plot a Spatial Quadrature Scheme

Plot a List of Point Patterns

Plot a Graphics Symbol Map

Plot a List of Spatial Objects

pppmatching.object

Class of Point Matchings

Class of Point Patterns

Polar Body and Voronoi Flower

Place Points Evenly Along Specified Lines

Distance Between Two Point Patterns

Create a Point Matching

project2segment

Move Point To Nearest Line

Print a Quadrature Scheme

Print Brief Details of a Point Pattern Dataset

Print Progress Reports

Class of Line Segment Patterns

Create a Line Segment Pattern

Find Nearest Point in a Region

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Generate a Quadrature Scheme from a Point Pattern

Class of Quadrature Schemes

Quadrat counting for a point pattern

Divide Region into Quadrats

Distance Map Using Rectangular Distance Metric

Require a Specific Version of a Package

Create A Regular Polygon

Reorder Levels of a Factor-Valued Image or Pattern

Convert Pixel Image to Another Unit of Length

Convert dataset to another unit of length

Cartesian Coordinates for a Pixel Raster

Reflect In Origin

Generate Quasirandom Point Pattern in Given Window

Random Perturbation of a Point Pattern

Generate grid of parallel lines with random displacement

Convert Line Segment Pattern to Another Unit of Length

Reverse the Colours in a Colour Map

Convert Point Pattern to Another Unit of Length

Explode a Point Pattern by Displacing Duplicated Points

Estimate window from points alone

Rotate a Window

run.simplepanel

Run Point-and-Click Interface

Simulate systematic random point pattern

Rotate a Line Segment Pattern

Detect Numerical Rounding

Apply Scalar Dilation

Apply Vector Translation To Pixel Image

Cut Line Segments Where They Intersect

Apply Vector Translation

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Apply Vector Translation To Point Pattern

Approximate a Window by a Simpler Polygon

Evaluate Logical Expression Involving Pixel Images and Return Region Where Expression is True

Apply Vector Translation To Line Segment Pattern

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

List of Two-Dimensional Spatial Objects

Apply Vector Translation To Window

Spatial Dimension of a Dataset

Divide Multidimensional Point Pattern into Sub-patterns

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Divide Point Pattern into Sub-patterns

Summary of a Spatial Window

summary.distfun

Summarizing a Function of Spatial Location

Stratified random point pattern

Summarizing a Pixel Image

summary.anylist

Summary of a List of Things

Subset of Point Pattern Satisfying A Condition

Create a Tessellation

Summary of a List of Spatial Objects

Summarizing a Quadrature Scheme

Summary of a Line Segment Pattern Dataset

Summary of a Point Pattern Dataset

summary.splitppp

Summary of a Split Point Pattern

test.crossing.psp

Check Whether Segments Cross

Add Text Labels to Spatial Pattern

Superimpose Several Geometric Patterns

Extract the Total Computation Time

Compute Centroids of Tiles in a Tessellation

Compute Areas of Tiles in a Tessellation

Plot Image or Tessellation Using Texture Fill

Determine Which Tile Contains Each Given Point

Extract List of Tiles in a Tessellation

tweak.colourmap

Change Colour Values in a Colour Map

triangulate.owin

Decompose Window into Triangles

Extract Unique Points from a Spatial Point Pattern

Name for Unit of Length

Map Duplicate Entries to Unique Entries

Convert Pixel Array Between Different Conventions

Unstack Each Spatial Object in a List of Objects

Tessellation Delimited by Several Sets

Rounding of Pixel Values

Vertices of a Window

Text, Arrow or Scale Bar in a Diagram

Test Which Side of Infinite Line a Point Falls On

update.symbolmap

Update a Graphics Symbol Map.

Extract Subset of Multidimensional Point Pattern

Extract or Replace Subset of a List of Things

Extract Subset of Window

Extract Subset of Line Segment Pattern

Subset of Quadrature Scheme

Extract or Replace Subset of Point Pattern

Extract Subset of Image

Extract.layered

Extract or Replace Subset of a Layered Object

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Extract or Change the Containing Rectangle of a Spatial Object

Apply Affine Transformation To Pixel Image

Apply Affine Transformation To Window

Fill Plot With Texture

Apply Affine Transformation

Apply Affine Transformation To Point Pattern

Check Whether Image Contains NA Values

Combine Two Line Segment Patterns

List of Objects

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Convert Pixel Image to Function of Coordinates

as.data.frame.im

Convert Pixel Image to Data Frame

Convert Pixel Image to Matrix

Convert Data to Hyperframe

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Convert Pixel Image to Matrix or Array

Convert Data To Layered Object

Convert Data To Tessellation

Distance to Boundary of Window

Convert List of Two-Dimensional Spatial Objects

Border Region of a Window

Distance to Boundary of Window

bounding.box.xy

Convex Hull of Points

Bounding Box of a Window, Image, or Point Pattern

Three-Dimensional Box

Interactively Define a Polygon

Convert and Compare Colours in Different Formats

complement.owin

Take Complement of a Window

Extract or Assign Colour Values in a Colour Map

Connected Components of a Point Pattern

Corners of a rectangle

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Pairwise distances between two different line segment patterns

Pairwise distances between two different point patterns

Geometrical Calculations for Three-Dimensional Box

default.colourmap

Default Colour Map for Plotting a Spatial Pattern

default.symbolmap.ppp

Default Symbol Map for Point Pattern

Diameter of a Window

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Dirichlet Tessellation of Point Pattern

Determine Duplicated Points in a Spatial Point Pattern

Distance Map of Point Pattern

Extract Boundary Edges of a Window.

Distance Map of Line Segment Pattern

edit.hyperframe

Invoke Text Editor on Hyperframe

Evaluate Expression Involving Pixel Images

List Dihedral Triples in a Graph

Add margins to box in any dimension

Compute Quadrature Weights Based on Grid Counts

framedist.pixels

Distance to Bounding Frame

Rectangular grid of points

Make Pixel Images Compatible

Add margins to rectangle

Create a Pixel Image Object

Class of Images

Identify Segments in a Line Segment Pattern

Interactively Identify Tiles of a Tessellation

Infinite Straight Lines

Apply Function Pixelwise to List of Images

Intensity of a Dataset or a Model

Intensity of a Multidimensional Space-Time Point Pattern

Test Whether Points Are Inside A Window

Empirical Intensity of Line Segment Pattern

Recognise NA Objects

Perform Geometric Task using a Specified Metric

Intersection of Two Tessellations

Intersection Of Boxes Of Arbitrary Dimension

Intersection, Union or Set Subtraction of Windows

Test Whether A Point Pattern is Marked

Test Whether An Object Is A Linear Network

Test Whether An Object Is Empty

Test Whether a Window is Convex

Generate a Row or Column Arrangement of Rectangles.

is.na.hyperframe

Identify Missing Entries in a Hyperframe

Identify Missing Entries in a List of Spatial Objects

Compute Minimum or Maximum Nearest-Neighbour Distance

Marks of a Point Pattern

Marks of a Tessellation

Methods for Multi-Dimensional Box

Methods for three-dimensional point patterns

Methods for Three-Dimensional Box

Methods for Spatial Functions

Image of Nearest Defined Pixel Value

multiplicity.ppp

Count Multiplicity of Duplicate Points

Midpoints of Line Segment Pattern

Distance Metric

Nearest Neighbours Between Two Patterns in 3D

Nearest Neighbour Distances in Any Dimensions

Nearest neighbour distances between line segments

Nearest neighbours in three dimensions

Nearest neighbour distances in three dimensions

K-th Nearest Point Map

Morphological Opening

Create a Window

Count Number of Vertices

Colour Map for pH Values

Number of Points in a Point Pattern

pairdist.default

Pairwise distances

Perspective Plot of Pixel Image

Pairwise distances

Pairwise Distances in Any Dimensions

Perimeter Length of Window

Perspective Plot of Marked Point Pattern

Extract Pixel Centres as Point Pattern

Plot a List of Things

Plot a Spatial Window

plot.pppmatching

Plot a Point Matching

Plot a Pixel Image

plot.texturemap

Plot a Texture Map

Plot a Tessellation

plot.quadratcount

Plot Quadrat Counts

plot a Spatial Line Segment Pattern

plot.textstring

Plot a Text String

Multidimensional Space-Time Point Pattern

Create a Point Pattern

Tessellation Using Polar Coordinates

Three Dimensional Point Pattern

Print Brief Details of a Spatial Window

Print Brief Details of a Line Segment Pattern Dataset

Print Brief Details of an Image

Quantile Function for Images

Convert Line Segment Pattern to Binary Pixel Mask

Sample Quantiles of Pixel Image

Quasirandom Patterns

Quantile Tessellation

Convert Window to Another Unit of Length

rescue.rectangle

Convert Window Back To Rectangle

restrict.colourmap

Restrict a Colour Map to a Subset of Values

Create Colour-Valued Pixel Image

Rotate a Point Pattern

Rotate a Pixel Image

Apply Numerical Rounding to Spatial Coordinates

Rotate or Shift Infinite Lines

Generate N Uniform Random Points in a Rectangle

Set Covariance of a Window

Print Names and Version Numbers of Libraries Loaded

Read Point Pattern From Data File

scaletointerval

Rescale Data to Lie Between Specified Limits

Simple Point-and-Click Interface Panels

Apply a Function Over a List and Obtain a List of Objects

Divide Image Into Sub-images

spatstat.geom-internal

Internal spatstat.geom functions

spatstat.options

Internal Options in Spatstat Package

Spokes pattern of dummy points

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Summary of a List of Things

Graphics Symbol Map

Names of Tiles in a Tessellation

Check For Empty Tiles in a Tessellation

Cut margins from rectangle

Find Location of Maximum in a Pixel Image

Volume of an Object

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe