Learn R Programming

spatstat.geom (version 3.7-2)

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

3.7-2

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

March 21st, 2026

Functions in spatstat.geom (3.7-2)

Extract or Replace Subset of Point Pattern

Extract Subset of Multidimensional Point Pattern

Subset of Quadrature Scheme

Extract Subset of Line Segment Pattern

Extract Subset of Window

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Extract.layered

Extract or Replace Subset of a Layered Object

Extract or Replace Subset of a List of Things

Extract.anylist

Extract or Replace Subset of a List of Things

Extract Subset of Image

Feret Diameter as a Function of Direction

Extract or Change the Containing Rectangle of a Spatial Object

Minkowski Sum of Windows

S3 Group Generic methods for images

Extract or Replace Subset of Tessellation

Make an NA Object

S3 Group Generic methods for List of Images

Support Function

Fill Plot With Texture

Extract Window of Spatial Object

Extract or Replace Subset of a List of Spatial Objects

Apply Affine Transformation To Pixel Image

Feret Box Enclosing a Domain

Extract.splitppp

Extract or Replace Sub-Patterns

Reset Values in Subset of Image

Apply Affine Transformation

Extract or Change the Window of a Spatial Object

Apply Affine Transformation To Line Segment Pattern

Apply Affine Transformation To Point Pattern

Apply Affine Transformation To Window

Convert Data to Three-Dimensional Box

Check Whether Image Contains NA Values

List of Objects

Difference of Disc Areas

Combine Two Line Segment Patterns

Apply Function to Every Neighbourhood in a Point Pattern

Orientation Angles of Line Segments

Apply Geometrical Transformation To Tessellation

Convert Data to Multi-Dimensional Box

as.data.frame.tess

Convert Tessellation to Data Frame

as.data.frame.owin

Convert Window to Data Frame

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Convert to Colour Map

Convert Pixel Image to Function of Coordinates

Area of a Window

as.function.owin

Convert Window to Indicator Function

Difference of Disc Areas

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

as.data.frame.im

Convert Pixel Image to Data Frame

Convert Data To Layered Object

Convert Data to Hyperframe

Convert a Window to a Polygonal Window

Convert Data To Class owin

as.function.tess

Convert a Tessellation to a Function

Pixel Image Approximation of a Window

Convert Pixel Image to Matrix

Convert Pixel Image to Matrix or Array

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Convert to Pixel Image

Convert List of Two-Dimensional Spatial Objects

Border Region of a Window

Convert Data To Class ppp

Create Colour Scheme for a Range of Numbers

Distance to Boundary of Window

Distance to Boundary of Window

Convert Data To Class psp

Distance to Boundary of Window

Convert Data To Tessellation

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Smallest Enclosing Circle

bounding.box.xy

Convex Hull of Points

Apply a Function to a Point Pattern Broken Down by Factor

Buffer Distance Tessellation

Bounding Box of a Window, Image, or Point Pattern

Multi-Dimensional Box

Apply Function to Image Broken Down by Factor

Centroid of a window

Interactively Measure Distance

Morphological Closing

Close Triples of Points

Close Pairs of Points

Three-Dimensional Box

Close Pairs of Points in 3 Dimensions

Interactively Define a Polygon

Subdivide a Window or Tessellation using a Set of Lines

Interactively Define a Rectangle

Interactively Add Points

Intersect Infinite Straight Lines with a Window

Connected Components of a Point Pattern

Colour Lookup Tables

Concatenate x,y Coordinate Vectors

complement.owin

Take Complement of a Window

Test Whether Pixel Images Are Compatible

Test Whether Objects Are Compatible

Connected components

Extract or Assign Colour Values in a Colour Map

Convert and Compare Colours in Different Formats

Determine A Common Spatial Domain And Pixel Resolution

Array of Contour Plots

Connected Components of Tiles of a Tessellation

Contour plot of pixel image

Weil's Convexifying Operation

Convex Hull of Points

crossdist.default

Pairwise distances between two different sets of points

Pairwise distances between two different three-dimensional point patterns

Corners of a rectangle

Pairwise distances between two different point patterns

Cover Region with Discs

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Distance Metric Defined by Convex Set

Pairwise distances

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Convolution of Pixel Images

Convert Pixel Image from Numeric to Factor

Pairwise distances between two different line segment patterns

Crossing Points of Two Line Segment Patterns

Classify Points in a Point Pattern

Diameter of an Object

delaunayDistance

Distance on Delaunay Triangulation

Geometrical Calculations for Three-Dimensional Box

default.colourmap

Default Colour Map for Plotting a Spatial Pattern

Generate a Default Pattern of Dummy Points

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

default.symbolmap

Default Symbol Map for Plotting a Spatial Pattern

Diameter of a Window

Areas of Morphological Dilations

Geometrical Calculations for Multi-Dimensional Box

default.symbolmap.ppp

Default Symbol Map for Point Pattern

Delaunay Triangulation of Point Pattern

Compute Areas of Tiles in Dirichlet Tessellation

default.image.colours

Default Colours for Images in Spatstat

Dirichlet Tessellation of Point Pattern

Morphological Dilation

Area of Part of Disc

Circular Window

Extract the Domain of any Spatial Object

Determine Duplicated Points in a Spatial Point Pattern

Safely Convert Point Pattern Window to Binary Mask

Distance Map of Line Segment Pattern

Extract Boundary Edges of a Window.

Distance Map of Point Pattern

Distance Map as a Function

Distance Map of Window

Invoke Text Editor on Spatial Data

edit.hyperframe

Invoke Text Editor on Hyperframe

Elliptical Window.

Endpoints of Line Segment Pattern

Evaluate Expression Involving Pixel Images

List Dihedral Triples in a Graph

Morphological Erosion of Windows

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Spatial Function Class

Compute Quadrature Weights Based on Grid Counts

edges2triangles

List Triangles in a Graph

Remove Small Holes in a Window

Areas of Morphological Erosions

Farthest Distance to Boundary of Window

Morphological Erosion by a Disc

Exchange X and Y Coordinates

Rectangular grid of points

Make Pixel Images Compatible

harmoniseLevels

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

Check Whether Points Have Close Neighbours

Fourier Basis Functions

Add margins to box in any dimension

Histogram of Values of a Spatial Function

Histogram of Pixel Values in an Image

Hexagonal Grid or Tessellation

Make Windows Compatible

First or Last Part of a Spatial Pattern

framedist.pixels

Distance to Bounding Frame

Make Objects Compatible

Add margins to rectangle

Apply Function Pixelwise to List of Images

Identify Segments in a Line Segment Pattern

Identify Points in a Point Pattern

Find Largest Circle Inside Window

Create a Pixel Image Object

Hyper Data Frame

Infinite Straight Lines

Interactively Identify Tiles of a Tessellation

Class of Images

Spatial Covariance of a Pixel Image

Integral of a Pixel Image

Test Whether Points Are Inside A Multidimensional Box

Test Whether Points Are Inside A Window

interp.colourmap

Interpolate smoothly between specified colours

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

integral.tessfun

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

Intensity of a Dataset or a Model

Empirical Intensity of Point Pattern

Perform Geometric Task using a Specified Metric

Intensity of a Multidimensional Space-Time Point Pattern

Recognise NA Objects

Interpolate a Pixel Image

Empirical Intensity of Line Segment Pattern

Intersection of Two Tessellations

Intersection, Union or Set Subtraction of Windows

Recognise a Multi-Dimensional Box

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Test Whether Marks Are Present

Test Whether An Object Is A Pixel Image

Test Whether A Point Pattern is Marked

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

Test Whether An Object Is A Linear Network

Intersection Of Boxes Of Arbitrary Dimension

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

Test whether Object is Multitype

Determine Whether One Window is Contained In Another

Determine Type of Window

is.multitype.ppp

Test Whether A Point Pattern is Multitype

is.connected.ppp

Determine Whether a Point Pattern is Connected

Determine Whether an Object is Connected

Test Whether An Object Is Empty

Generate a Row or Column Arrangement of Rectangles.

Lengths of Line Segments

is.na.hyperframe

Identify Missing Entries in a Hyperframe

Extract or Replace the Plot Arguments of a Layered Object

Identify Missing Entries in a List of Spatial Objects

Test Whether a Window is Convex

Create List of Plotting Layers

Test Whether An Object Is A Point Pattern

Level Set of a Pixel Image

Test Whether An Object Is A Window

Mean and Median of Pixel Values in an Image

Compute Minimum or Maximum Nearest-Neighbour Distance

Marks of a Tessellation

Marks of a Line Segment Pattern

Distance for a Point Pattern Matching

Methods for Multi-Dimensional Box

Methods for Three-Dimensional Box

methods.distfun

Geometrical Operations for Distance Functions

Merge Levels of a Factor

Summarise Marks in Every Neighbourhood in a Point Pattern

Methods for Multidimensional Space-Time Point Patterns

Marks of a Point Pattern

methods.unitname

Methods for Units

Merge Groups of Tiles in a Tessellation

levelset.distfun

Level Set of a Distance Function

methods.layered

Methods for Layered Objects

Distance Metric

Methods for Spatial Functions

nearest.raster.point

Find Pixel Nearest to a Given Point

Methods for three-dimensional point patterns

multiplicity.ppp

Count Multiplicity of Duplicate Points

Nearest Neighbours Between Two Patterns in 3D

Nearest Neighbours Between Two Patterns in Any Dimensions

Nearest Neighbours Between Two Patterns

Midpoints of Line Segment Pattern

Image of Nearest Defined Pixel Value

Find Line Segment Nearest to Each Point

K-th Nearest Point Map

Nearest Neighbour Index Map as a Function

Mark of Nearest Neighbour

Nearest neighbour

Nearest Neighbours in Any Dimensions

Nearest neighbours in three dimensions

Nearest neighbour distances in three dimensions

Nearest neighbour distances

Create a Window

Number of Line Segments in a Line Segment Pattern

Count Number of Vertices

Morphological Opening

Compute Area of Overlap

Nearest neighbour distances between line segments

Nearest Neighbour Distances in Any Dimensions

Colour Map for pH Values

Convert Window to Binary Mask under Constraints

Count Number of Geometrical Objects in a Spatial Dataset

Number of Points in a Point Pattern

Pad the Border of a Pixel Image

Pairwise distances

Pairwise distances in Three Dimensions

pairdist.default

Pairwise distances

Pairwise distances

Pairwise distances between line segments

Pairwise Distances in Any Dimensions

Perspective Plot of Pixel Image

Make Periodic Copies of a Spatial Pattern

Perimeter Length of Window

Convert Window to Pixel Image

Convert Spatial Object to Pixel Image

Draw Points or Lines on a Surface Viewed in Perspective

Extract Pixel Centres as Point Pattern

Perspective Plot of Marked Point Pattern

Convert Point Pattern to Pixel Image

Plot a Colour Map

Plot a List of Things

Convert Line Segment Pattern to Pixel Image

Quadrature Scheme Based on Pixel Grid

Plot a List of Images

plot.hyperframe

Plot Entries in a Hyperframe

Plot a List of Things

Plot a Pixel Image

plot a Spatial Point Pattern

Plot a Three-Dimensional Point Pattern

Plot a Spatial Window

plot.pppmatching

Plot a Point Matching

plot.textstring

Plot a Text String

Plot a List of Point Patterns

Plot a List of Spatial Objects

Plot a Spatial Quadrature Scheme

plot.texturemap

Plot a Texture Map

Plot a Graphics Symbol Map

plot.quadratcount

Plot Quadrat Counts

Plot a Tessellation

Plot a Yardstick or Scale Bar

plot a Spatial Line Segment Pattern

Distance Between Two Point Patterns

Create a Point Pattern

Class of Point Patterns

Create a Point Matching

Tessellation Using Polar Coordinates

pppmatching.object

Class of Point Matchings

Place Points Evenly Along Specified Lines

Three Dimensional Point Pattern

Multidimensional Space-Time Point Pattern

Print Progress Reports

Create a Line Segment Pattern

Polar Body and Voronoi Flower

Print Brief Details of an Image

Print Brief Details of a Point Pattern Dataset

Print Brief Details of a Spatial Window

project2segment

Move Point To Nearest Line

Print a Quadrature Scheme

Class of Line Segment Patterns

Print Brief Details of a Line Segment Pattern Dataset

Find Nearest Point in a Region

Divide Region into Quadrats

Quadrat counting for a point pattern

Quantile Tessellation

Sample Quantiles of Pixel Image

Distance Map Using Rectangular Distance Metric

Reflect In Origin

Require a Specific Version of a Package

Convert dataset to another unit of length

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Cartesian Coordinates for a Pixel Raster

Generate a Quadrature Scheme from a Point Pattern

Generate Quasirandom Point Pattern in Given Window

Reorder Levels of a Factor-Valued Image or Pattern

Class of Quadrature Schemes

Create A Regular Polygon

Convert Pixel Image to Another Unit of Length

Quasirandom Patterns

Convert Line Segment Pattern to Binary Pixel Mask

Quantile Function for Images

Convert Point Pattern to Another Unit of Length

Create Colour-Valued Pixel Image

Estimate window from points alone

Convert Line Segment Pattern to Another Unit of Length

run.simplepanel

Run Point-and-Click Interface

rescue.rectangle

Convert Window Back To Rectangle

Detect Numerical Rounding

Simulate systematic random point pattern

Rotate a Line Segment Pattern

Generate grid of parallel lines with random displacement

Rotate or Shift Infinite Lines

Rotate a Point Pattern

Convert Window to Another Unit of Length

restrict.colourmap

Restrict a Colour Map to a Subset of Values

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Random Perturbation of a Point Pattern

Rotate a Window

Apply Numerical Rounding to Spatial Coordinates

Cut Line Segments Where They Intersect

Reverse the Colours in a Colour Map

Apply Vector Translation To Pixel Image

Apply Vector Translation

Apply Scalar Dilation

Print Names and Version Numbers of Libraries Loaded

Set Covariance of a Window

Generate N Uniform Random Points in a Rectangle

Apply Vector Translation To Window

Apply Vector Translation To Point Pattern

Apply Vector Translation To Line Segment Pattern

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

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

Simple Point-and-Click Interface Panels

List of Two-Dimensional Spatial Objects

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Rotate a Pixel Image

Read Point Pattern From Data File

scaletointerval

Rescale Data to Lie Between Specified Limits

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

Approximate a Window by a Simpler Polygon

Explode a Point Pattern by Displacing Duplicated Points

Spatial Dimension of a Dataset

spatstat.geom-internal

Internal spatstat.geom functions

spatstat.geom-deprecated

Deprecated spatstat.geom functions

spatstat.options

Internal Options in Spatstat Package

Divide Image Into Sub-images

Divide Multidimensional Point Pattern into Sub-patterns

spatstat.geom-package

The spatstat.geom Package

Spokes pattern of dummy points

Divide Point Pattern into Sub-patterns

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Summary of a Spatial Window

Summary of a List of Things

Subset of Point Pattern Satisfying A Condition

Stratified random point pattern

summary.distfun

Summarizing a Function of Spatial Location

Summarizing a Pixel Image

Subset of Line Segment Satisfying A Condition

summary.anylist

Summary of a List of Things

Summary of a List of Spatial Objects

Graphics Symbol Map

summary.splitppp

Summary of a Split Point Pattern

Add Text Labels to Spatial Pattern

Summary of a Line Segment Pattern Dataset

test.crossing.psp

Check Whether Segments Cross

Create a Tessellation

Summary of a Point Pattern Dataset

Superimpose Several Geometric Patterns

Summarizing a Quadrature Scheme

Determine Which Tile Contains Each Given Point

Compute Centroids of Tiles in a Tessellation

Compute Areas of Tiles in a Tessellation

Plot Image or Tessellation Using Texture Fill

Extract the Total Computation Time

Record the Computation Time

Extract List of Tiles in a Tessellation

Check For Empty Tiles in a Tessellation

Convert Pixel Array Between Different Conventions

Cut margins from rectangle

Names of Tiles in a Tessellation

Map Duplicate Entries to Unique Entries

Union of Data and Dummy Points

Separate Multiple Columns of Marks

Name for Unit of Length

Vertices of a Window

Tessellation Delimited by Several Sets

tweak.colourmap

Change Colour Values in a Colour Map

Volume of an Object

Extract Unique Points from a Spatial Point Pattern

Find Location of Maximum in a Pixel Image

Unstack Each Spatial Object in a List of Objects

update.symbolmap

Update a Graphics Symbol Map.

Rounding of Pixel Values

triangulate.owin

Decompose Window into Triangles

Text, Arrow or Scale Bar in a Diagram

Test Which Side of Infinite Line a Point Falls On

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe