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spatstat.geom (version 3.4-1)

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'.)

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Version

Install

install.packages('spatstat.geom')

Monthly Downloads

64,669

Version

3.4-1

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

May 20th, 2025

Functions in spatstat.geom (3.4-1)

Extract Subset of Window

Extract.layered

Extract or Replace Subset of a Layered Object

Extract or Replace Subset of Point Pattern

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Extract Subset of Line Segment Pattern

Extract.anylist

Extract or Replace Subset of a List of Things

Extract Subset of Image

Extract Subset of Multidimensional Point Pattern

List of Objects

Minkowski Sum of Windows

Subset of Quadrature Scheme

Extract or Replace Subset of a List of Spatial Objects

Apply Geometrical Transformation To Tessellation

Extract or Change the Containing Rectangle of a Spatial Object

Extract Window of Spatial Object

S3 Group Generic methods for List of Images

S3 Group Generic methods for images

Fill Plot With Texture

Reset Values in Subset of Image

Extract or Replace Subset of Tessellation

Apply Affine Transformation To Point Pattern

Check Whether Image Contains NA Values

Apply Affine Transformation To Window

Extract.splitppp

Extract or Replace Sub-Patterns

Extract or Replace Subset of a List of Things

Extract or Change the Window of a Spatial Object

Apply Affine Transformation To Pixel Image

Area of a Window

Orientation Angles of Line Segments

Difference of Disc Areas

Difference of Disc Areas

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

Apply Affine Transformation To Line Segment Pattern

Convert Data to Multi-Dimensional Box

Convert to Colour Map

Combine Two Line Segment Patterns

Apply Function to Every Neighbourhood in a Point Pattern

Apply Affine Transformation

as.function.owin

Convert Window to Indicator Function

Convert Pixel Image to Function of Coordinates

Convert Data to Three-Dimensional Box

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

as.data.frame.owin

Convert Window to Data Frame

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

Convert to Pixel Image

Convert Pixel Image to Matrix

Convert Data To Class ppp

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

as.data.frame.tess

Convert Tessellation to Data Frame

Convert Pixel Image to Matrix or Array

Convert Data To Class owin

Convert a Window to a Polygonal Window

bounding.box.xy

Convex Hull of Points

Distance to Boundary of Window

Convert Data to Hyperframe

Convert List of Two-Dimensional Spatial Objects

as.function.tess

Convert a Tessellation to a Function

Distance to Boundary of Window

Pixel Image Approximation of a Window

as.data.frame.im

Convert Pixel Image to Data Frame

Convert Data To Layered Object

Bounding Box of a Window, Image, or Point Pattern

Convert Data To Class psp

Three-Dimensional Box

Interactively Measure Distance

Subdivide a Window or Tessellation using a Set of Lines

Smallest Enclosing Circle

Distance to Boundary of Window

Convert Data To Tessellation

Colour Lookup Tables

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Interactively Define a Polygon

Interactively Define a Rectangle

Create Colour Scheme for a Range of Numbers

Convert and Compare Colours in Different Formats

Connected Components of Tiles of a Tessellation

Determine A Common Spatial Domain And Pixel Resolution

Border Region of a Window

Apply Function to Image Broken Down by Factor

Apply a Function to a Point Pattern Broken Down by Factor

Extract or Assign Colour Values in a Colour Map

Intersect Infinite Straight Lines with a Window

Connected Components of a Point Pattern

Interactively Add Points

complement.owin

Take Complement of a Window

Multi-Dimensional Box

Connected components

Concatenate x,y Coordinate Vectors

Contour plot of pixel image

Array of Contour Plots

Buffer Distance Tessellation

Centroid of a window

Pairwise distances between two different line segment patterns

Crossing Points of Two Line Segment Patterns

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Weil's Convexifying Operation

Convex Hull of Points

Close Pairs of Points

Close Triples of Points

Morphological Closing

Morphological Dilation

Diameter of an Object

Distance Metric Defined by Convex Set

default.symbolmap

Default Symbol Map for Plotting a Spatial Pattern

Cover Region with Discs

Areas of Morphological Dilations

Generate a Default Pattern of Dummy Points

default.symbolmap.ppp

Default Symbol Map for Point Pattern

Close Pairs of Points in 3 Dimensions

Corners of a rectangle

default.image.colours

Default Colours for Images in Spatstat

Diameter of a Window

crossdist.default

Pairwise distances between two different sets of points

Distance Map of Point Pattern

Test Whether Objects Are Compatible

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Pairwise distances

Area of Part of Disc

Compute Areas of Tiles in Dirichlet Tessellation

Convert Pixel Image from Numeric to Factor

Invoke Text Editor on Spatial Data

Elliptical Window.

Farthest Distance to Boundary of Window

Test Whether Pixel Images Are Compatible

Safely Convert Point Pattern Window to Binary Mask

edit.hyperframe

Invoke Text Editor on Hyperframe

List Dihedral Triples in a Graph

Distance Map of Window

Dirichlet Tessellation of Point Pattern

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Pairwise distances between two different three-dimensional point patterns

Exchange X and Y Coordinates

Compute Quadrature Weights Based on Grid Counts

Convolution of Pixel Images

Fourier Basis Functions

Geometrical Calculations for Multi-Dimensional Box

Morphological Erosion by a Disc

Endpoints of Line Segment Pattern

Distance Map of Line Segment Pattern

Extract Boundary Edges of a Window.

Classify Points in a Point Pattern

Geometrical Calculations for Three-Dimensional Box

Check Whether Points Have Close Neighbours

Evaluate Expression Involving Pixel Images

Make Windows Compatible

Pairwise distances between two different point patterns

Distance Map as a Function

framedist.pixels

Distance to Bounding Frame

Make Pixel Images Compatible

Apply Function Pixelwise to List of Images

Class of Images

Add margins to box in any dimension

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Hyper Data Frame

Infinite Straight Lines

Extract the Domain of any Spatial Object

delaunayDistance

Distance on Delaunay Triangulation

Delaunay Triangulation of Point Pattern

Intersection Of Boxes Of Arbitrary Dimension

Find Largest Circle Inside Window

Intersection, Union or Set Subtraction of Windows

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

Test Whether An Object Is A Window

Test Whether An Object Is A Pixel Image

Test Whether Points Are Inside A Multidimensional Box

Test Whether An Object Is A Point Pattern

Generate a Row or Column Arrangement of Rectangles.

Summarise Marks in Every Neighbourhood in a Point Pattern

Marks of a Tessellation

Lengths of Line Segments

interp.colourmap

Interpolate smoothly between specified colours

Interpolate a Pixel Image

Merge Levels of a Factor

Histogram of Pixel Values in an Image

integral.tessfun

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

Marks of a Point Pattern

Test Whether An Object Is A Linear Network

Determine Type of Window

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

Find Line Segment Nearest to Each Point

Image of Nearest Defined Pixel Value

Nearest Neighbour Index Map as a Function

K-th Nearest Point Map

Nearest neighbours in three dimensions

Colour Map for pH Values

Convert Window to Binary Mask under Constraints

Morphological Opening

Compute Area of Overlap

Nearest Neighbours in Any Dimensions

Nearest neighbour distances

Pad the Border of a Pixel Image

Nearest neighbour distances in three dimensions

Perspective Plot of Pixel Image

Draw Points or Lines on a Surface Viewed in Perspective

Perspective Plot of Marked Point Pattern

Convert Line Segment Pattern to Pixel Image

Convert Window to Pixel Image

Convert Spatial Object to Pixel Image

plot.hyperframe

Plot Entries in a Hyperframe

Plot a List of Things

Extract Pixel Centres as Point Pattern

Plot a Colour Map

Convert Point Pattern to Pixel Image

Plot a List of Images

Plot a List of Point Patterns

Plot a List of Spatial Objects

plot.quadratcount

Plot Quadrat Counts

Plot a Yardstick or Scale Bar

plot.texturemap

Plot a Texture Map

Place Points Evenly Along Specified Lines

Plot a Graphics Symbol Map

Plot a Tessellation

Multidimensional Space-Time Point Pattern

Create a Point Matching

pppmatching.object

Class of Point Matchings

Class of Quadrature Schemes

Quadrat counting for a point pattern

Quantile Function for Images

Sample Quantiles of Pixel Image

Convert Pixel Image to Another Unit of Length

Generate Quasirandom Point Pattern in Given Window

Reflect In Origin

Create A Regular Polygon

Create Colour-Valued Pixel Image

Random Perturbation of a Point Pattern

Estimate window from points alone

Explode a Point Pattern by Displacing Duplicated Points

Generate grid of parallel lines with random displacement

Apply Numerical Rounding to Spatial Coordinates

Rotate a Line Segment Pattern

Apply Vector Translation To Pixel Image

Apply Vector Translation To Window

scaletointerval

Rescale Data to Lie Between Specified Limits

Read Point Pattern From Data File

Rotate or Shift Infinite Lines

Apply Scalar Dilation

Rotate a Pixel Image

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

Detect Numerical Rounding

Apply Vector Translation

Simulate systematic random point pattern

Simple Point-and-Click Interface Panels

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Apply Vector Translation To Line Segment Pattern

spatstat.geom-deprecated

Deprecated spatstat.geom functions

spatstat.geom-internal

Internal spatstat.geom functions

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Set Covariance of a Window

Stratified random point pattern

Spokes pattern of dummy points

Summary of a Spatial Window

Summary of a Point Pattern Dataset

Divide Multidimensional Point Pattern into Sub-patterns

Divide Point Pattern into Sub-patterns

Summary of a List of Spatial Objects

summary.splitppp

Summary of a Split Point Pattern

summary.distfun

Summarizing a Function of Spatial Location

summary.anylist

Summary of a List of Things

Determine Which Tile Contains Each Given Point

Names of Tiles in a Tessellation

Superimpose Several Geometric Patterns

Graphics Symbol Map

Separate Multiple Columns of Marks

Rounding of Pixel Values

Text, Arrow or Scale Bar in a Diagram

Vertices of a Window

Extract the Total Computation Time

Record the Computation Time

Tessellation Delimited by Several Sets

Circular Window

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

edges2triangles

List Triangles in a Graph

Morphological Erosion of Windows

Add margins to rectangle

Areas of Morphological Erosions

Histogram of Values of a Spatial Function

Make Objects Compatible

Determine Duplicated Points in a Spatial Point Pattern

Intensity of a Multidimensional Space-Time Point Pattern

Empirical Intensity of Point Pattern

Rectangular grid of points

Spatial Function Class

Hexagonal Grid or Tessellation

First or Last Part of a Spatial Pattern

Test Whether Points Are Inside A Window

Determine Whether an Object is Connected

Integral of a Pixel Image

is.connected.ppp

Determine Whether a Point Pattern is Connected

Recognise a Multi-Dimensional Box

Intensity of a Dataset or a Model

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Test Whether A Point Pattern is Marked

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

harmoniseLevels

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

Empirical Intensity of Line Segment Pattern

Spatial Covariance of a Pixel Image

Identify Points in a Point Pattern

Create a Pixel Image Object

Identify Segments in a Line Segment Pattern

Test whether Object is Multitype

Test Whether a Window is Convex

Intersection of Two Tessellations

Perform Geometric Task using a Specified Metric

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Test Whether An Object Is Empty

methods.layered

Methods for Layered Objects

Create List of Plotting Layers

Methods for three-dimensional point patterns

Test Whether Marks Are Present

Extract or Replace the Plot Arguments of a Layered Object

Level Set of a Pixel Image

multiplicity.ppp

Count Multiplicity of Duplicate Points

Methods for Spatial Functions

methods.distfun

Geometrical Operations for Distance Functions

Marks of a Line Segment Pattern

Distance for a Point Pattern Matching

Midpoints of Line Segment Pattern

Methods for Multi-Dimensional Box

Count Number of Geometrical Objects in a Spatial Dataset

Methods for Three-Dimensional Box

Distance Metric

Nearest Neighbours Between Two Patterns

Mean and Median of Pixel Values in an Image

Compute Minimum or Maximum Nearest-Neighbour Distance

Number of Points in a Point Pattern

Nearest neighbour

Mark of Nearest Neighbour

Pairwise distances

nearest.raster.point

Find Pixel Nearest to a Given Point

Nearest neighbour distances between line segments

Create a Window

Pairwise Distances in Any Dimensions

Number of Line Segments in a Line Segment Pattern

Pairwise distances

Count Number of Vertices

Nearest Neighbour Distances in Any Dimensions

Pairwise distances in Three Dimensions

Pairwise distances between line segments

Nearest Neighbours Between Two Patterns in Any Dimensions

Methods for Multidimensional Space-Time Point Patterns

Determine Whether One Window is Contained In Another

pairdist.default

Pairwise distances

Nearest Neighbours Between Two Patterns in 3D

Make Periodic Copies of a Spatial Pattern

methods.unitname

Methods for Units

Plot a Pixel Image

plot a Spatial Line Segment Pattern

Plot a Spatial Quadrature Scheme

plot.textstring

Plot a Text String

Tessellation Using Polar Coordinates

Print Brief Details of an Image

Three Dimensional Point Pattern

Print Brief Details of a Line Segment Pattern Dataset

Distance Map Using Rectangular Distance Metric

Generate a Quadrature Scheme from a Point Pattern

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

Divide Region into Quadrats

Quantile Tessellation

Require a Specific Version of a Package

rescue.rectangle

Convert Window Back To Rectangle

Convert Line Segment Pattern to Another Unit of Length

Reorder Levels of a Factor-Valued Image or Pattern

Generate N Uniform Random Points in a Rectangle

run.simplepanel

Run Point-and-Click Interface

Rotate a Window

Rotate a Point Pattern

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Spatial Dimension of a Dataset

Print Names and Version Numbers of Libraries Loaded

Cut Line Segments Where They Intersect

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

Subset of Point Pattern Satisfying A Condition

spatstat.options

Internal Options in Spatstat Package

Subset of Line Segment Satisfying A Condition

spatstat.geom-package

The spatstat.geom Package

Summarizing a Quadrature Scheme

Summary of a Line Segment Pattern Dataset

Create a Tessellation

tweak.colourmap

Change Colour Values in a Colour Map

test.crossing.psp

Check Whether Segments Cross

Cut margins from rectangle

triangulate.owin

Decompose Window into Triangles

Convert Pixel Array Between Different Conventions

Map Duplicate Entries to Unique Entries

Name for Unit of Length

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Test Which Side of Infinite Line a Point Falls On

Perimeter Length of Window

Quadrature Scheme Based on Pixel Grid

plot a Spatial Point Pattern

plot.pppmatching

Plot a Point Matching

Plot a List of Things

Plot a Three-Dimensional Point Pattern

Plot a Spatial Window

Class of Point Patterns

Distance Between Two Point Patterns

Class of Line Segment Patterns

Convert Line Segment Pattern to Binary Pixel Mask

Create a Point Pattern

Print Brief Details of a Point Pattern Dataset

Print Progress Reports

Print Brief Details of a Spatial Window

Print a Quadrature Scheme

project2segment

Move Point To Nearest Line

Quasirandom Patterns

Convert Point Pattern to Another Unit of Length

Find Nearest Point in a Region

Create a Line Segment Pattern

Convert Window to Another Unit of Length

restrict.colourmap

Restrict a Colour Map to a Subset of Values

Reverse the Colours in a Colour Map

Approximate a Polygon by a Simpler Polygon

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Apply Vector Translation To Point Pattern

List of Two-Dimensional Spatial Objects

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Divide Image Into Sub-images

Summarizing a Pixel Image

Summary of a List of Things

Compute Areas of Tiles in a Tessellation

Plot Image or Tessellation Using Texture Fill

update.symbolmap

Update a Graphics Symbol Map.

Unstack Each Spatial Object in a List of Objects

Extract List of Tiles in a Tessellation

Check For Empty Tiles in a Tessellation

Volume of an Object

Extract Unique Points from a Spatial Point Pattern

Union of Data and Dummy Points

Find Location of Maximum in a Pixel Image

Add Text Labels to Spatial Pattern