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spatstat.geom (version 3.3-5)

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

53,883

Version

3.3-5

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

January 18th, 2025

Functions in spatstat.geom (3.3-5)

Extract Subset of Image

Extract.layered

Extract or Replace Subset of a Layered Object

S3 Group Generic methods for images

S3 Group Generic methods for List of Images

Minkowski Sum of Windows

Combine Two Line Segment Patterns

Apply Function to Every Neighbourhood in a Point Pattern

Reset Values in Subset of Image

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Apply Affine Transformation To Point Pattern

as.data.frame.tess

Convert Tessellation to Data Frame

Smallest Enclosing Circle

Apply Affine Transformation To Line Segment Pattern

Three-Dimensional Box

Area of a Window

Difference of Disc Areas

Apply Function to Image Broken Down by Factor

Apply a Function to a Point Pattern Broken Down by Factor

Convert Data To Class owin

Convert a Window to a Polygonal Window

Convert and Compare Colours in Different Formats

Determine A Common Spatial Domain And Pixel Resolution

Connected Components of Tiles of a Tessellation

Contour plot of pixel image

bounding.box.xy

Convex Hull of Points

Bounding Box of a Window, Image, or Point Pattern

Interactively Measure Distance

Interactively Define a Polygon

Extract or Replace Subset of Point Pattern

Extract Subset of Multidimensional Point Pattern

Apply Geometrical Transformation To Tessellation

Close Pairs of Points

crossdist.default

Pairwise distances between two different sets of points

Extract or Replace Subset of a List of Things

Pairwise distances between two different three-dimensional point patterns

Extract Subset of Window

Close Pairs of Points in 3 Dimensions

Convert Pixel Image from Numeric to Factor

Orientation Angles of Line Segments

Classify Points in a Point Pattern

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Extract or Replace Subset of a List of Spatial Objects

as.data.frame.im

Convert Pixel Image to Data Frame

Geometrical Calculations for Three-Dimensional Box

Extract.splitppp

Extract or Replace Sub-Patterns

Convert Pixel Image to Function of Coordinates

Corners of a rectangle

Fill Plot With Texture

default.symbolmap

Default Symbol Map for Plotting a Spatial Pattern

Apply Affine Transformation

default.symbolmap.ppp

Default Symbol Map for Point Pattern

as.function.owin

Convert Window to Indicator Function

Geometrical Calculations for Multi-Dimensional Box

Delaunay Triangulation of Point Pattern

Convert Data To Layered Object

Pixel Image Approximation of a Window

delaunayDistance

Distance on Delaunay Triangulation

Convert Data To Tessellation

Extract.anylist

Extract or Replace Subset of a List of Things

Compute Areas of Tiles in Dirichlet Tessellation

Difference of Disc Areas

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Convert Data to Three-Dimensional Box

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Circular Window

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Extract or Change the Window of a Spatial Object

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Convert to Pixel Image

Extract Boundary Edges of a Window.

edges2triangles

List Triangles in a Graph

Farthest Distance to Boundary of Window

Extract Window of Spatial Object

Evaluate Expression Involving Pixel Images

Convert Data To Class ppp

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Spatial Function Class

Apply Affine Transformation To Pixel Image

Distance to Boundary of Window

Rectangular grid of points

Apply Affine Transformation To Window

Identify Segments in a Line Segment Pattern

as.data.frame.owin

Convert Window to Data Frame

Exchange X and Y Coordinates

Make Pixel Images Compatible

Create a Pixel Image Object

Intensity of a Multidimensional Space-Time Point Pattern

Convert Data To Class psp

Distance to Boundary of Window

Distance to Boundary of Window

Empirical Intensity of Line Segment Pattern

Interactively Add Points

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Centroid of a window

Intersect Infinite Straight Lines with a Window

Intersection, Union or Set Subtraction of Windows

Array of Contour Plots

Make Windows Compatible

Intersection of Two Tessellations

Test Whether A Point Pattern is Marked

Test whether Object is Multitype

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

Intensity of a Dataset or a Model

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Convert Pixel Image to Matrix or Array

Determine Whether One Window is Contained In Another

Empirical Intensity of Point Pattern

Extract Subset of Line Segment Pattern

Convert Pixel Image to Matrix

Create Colour Scheme for a Range of Numbers

Colour Lookup Tables

Create List of Plotting Layers

Find Line Segment Nearest to Each Point

Distance Metric

Extract or Assign Colour Values in a Colour Map

Border Region of a Window

Subset of Quadrature Scheme

Extract or Replace Subset of Tessellation

Extract or Change the Containing Rectangle of a Spatial Object

Check Whether Image Contains NA Values

Connected components

Distance Metric Defined by Convex Set

interp.colourmap

Interpolate smoothly between specified colours

List of Objects

Convert Data to Multi-Dimensional Box

Multi-Dimensional Box

Convert to Colour Map

Buffer Distance Tessellation

Convolution of Pixel Images

Connected Components of a Point Pattern

Compute Minimum or Maximum Nearest-Neighbour Distance

Diameter of a Window

Cover Region with Discs

Mean and Median of Pixel Values in an Image

Close Triples of Points

as.function.tess

Convert a Tessellation to a Function

Pairwise distances

Areas of Morphological Dilations

Morphological Closing

Invoke Text Editor on Spatial Data

is.connected.ppp

Determine Whether a Point Pattern is Connected

Elliptical Window.

Convert Data to Hyperframe

complement.owin

Take Complement of a Window

methods.unitname

Methods for Units

Pairwise distances between two different point patterns

Convert List of Two-Dimensional Spatial Objects

Pairwise distances in Three Dimensions

Subdivide a Window or Tessellation using a Set of Lines

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Nearest Neighbour Index Map as a Function

Interactively Define a Rectangle

Endpoints of Line Segment Pattern

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Convert Point Pattern to Pixel Image

Test Whether Objects Are Compatible

Test Whether Pixel Images Are Compatible

Areas of Morphological Erosions

nearest.raster.point

Find Pixel Nearest to a Given Point

Compute Area of Overlap

Concatenate x,y Coordinate Vectors

Add margins to rectangle

Perform Geometric Task using a Specified Metric

Image of Nearest Defined Pixel Value

Pairwise distances between two different line segment patterns

Convex Hull of Points

List Dihedral Triples in a Graph

Weil's Convexifying Operation

Diameter of an Object

Test Whether a Window is Convex

Apply Vector Translation

Merge Levels of a Factor

Generate a Default Pattern of Dummy Points

Crossing Points of Two Line Segment Patterns

Make Objects Compatible

plot.textstring

Plot a Text String

Divide Image Into Sub-images

Histogram of Values of a Spatial Function

Distance Map as a Function

Methods for Three-Dimensional Box

Nearest neighbour distances between line segments

Histogram of Pixel Values in an Image

Convert Line Segment Pattern to Pixel Image

default.image.colours

Default Colours for Images in Spatstat

Plot a List of Things

Summary of a List of Things

Rotate a Pixel Image

Distance Map of Window

Plot a List of Point Patterns

Pairwise Distances in Any Dimensions

Methods for three-dimensional point patterns

framedist.pixels

Distance to Bounding Frame

Extract the Domain of any Spatial Object

Pairwise distances between line segments

Colour Map for pH Values

Require a Specific Version of a Package

Divide Region into Quadrats

edit.hyperframe

Invoke Text Editor on Hyperframe

Test Whether An Object Is A Point Pattern

Determine Type of Window

Methods for Multidimensional Space-Time Point Patterns

Midpoints of Line Segment Pattern

Fourier Basis Functions

Morphological Dilation

harmoniseLevels

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

Distance for a Point Pattern Matching

Hyper Data Frame

Quadrat counting for a point pattern

Check Whether Points Have Close Neighbours

Extract or Replace the Plot Arguments of a Layered Object

Spatial Covariance of a Pixel Image

Dirichlet Tessellation of Point Pattern

Area of Part of Disc

Summarise Marks in Every Neighbourhood in a Point Pattern

Determine Duplicated Points in a Spatial Point Pattern

Safely Convert Point Pattern Window to Binary Mask

Plot a List of Things

Convert Window to Pixel Image

Convert Line Segment Pattern to Binary Pixel Mask

Plot a Spatial Window

K-th Nearest Point Map

Identify Points in a Point Pattern

Plot a Colour Map

Nearest neighbours in three dimensions

Distance Map of Point Pattern

Morphological Erosion by a Disc

Add margins to box in any dimension

Count Number of Vertices

Generate a Row or Column Arrangement of Rectangles.

Morphological Erosion of Windows

Methods for Spatial Functions

Interpolate a Pixel Image

Compute Quadrature Weights Based on Grid Counts

methods.layered

Methods for Layered Objects

Perimeter Length of Window

Number of Points in a Point Pattern

Nearest Neighbours Between Two Patterns in Any Dimensions

Test Whether An Object Is A Linear Network

Find Largest Circle Inside Window

Morphological Opening

Create a Point Pattern

Nearest neighbour distances

Distance Map of Line Segment Pattern

Print Brief Details of a Line Segment Pattern Dataset

Test Whether An Object Is Empty

Plot a List of Spatial Objects

Recognise a Multi-Dimensional Box

Apply Vector Translation To Point Pattern

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Print Brief Details of a Point Pattern Dataset

Determine Whether an Object is Connected

Pairwise distances

Convert Pixel Image to Another Unit of Length

First or Last Part of a Spatial Pattern

Test Whether An Object Is A Pixel Image

Generate a Quadrature Scheme from a Point Pattern

Simulate systematic random point pattern

Hexagonal Grid or Tessellation

Infinite Straight Lines

Test Whether Points Are Inside A Window

Apply Function Pixelwise to List of Images

Reverse the Colours in a Colour Map

Mark of Nearest Neighbour

Class of Point Patterns

Random Perturbation of a Point Pattern

Plot a Pixel Image

Distance Between Two Point Patterns

Generate Quasirandom Point Pattern in Given Window

Sample Quantiles of Pixel Image

Nearest Neighbours Between Two Patterns

Print Brief Details of an Image

Pad the Border of a Pixel Image

Integral of a Pixel Image

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Generate N Uniform Random Points in a Rectangle

Class of Images

plot a Spatial Line Segment Pattern

plot.texturemap

Plot a Texture Map

Marks of a Line Segment Pattern

Plot a Yardstick or Scale Bar

Create a Window

Count Number of Geometrical Objects in a Spatial Dataset

Test Whether Points Are Inside A Multidimensional Box

Cartesian Coordinates for a Pixel Raster

Convert dataset to another unit of length

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

Quantile Tessellation

Apply Scalar Dilation

Divide Multidimensional Point Pattern into Sub-patterns

run.simplepanel

Run Point-and-Click Interface

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

rescue.rectangle

Convert Window Back To Rectangle

Summary of a Point Pattern Dataset

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Methods for Multi-Dimensional Box

Find Location of Maximum in a Pixel Image

Marks of a Point Pattern

Nearest neighbour

Test Whether Marks Are Present

Make Periodic Copies of a Spatial Pattern

Intersection Of Boxes Of Arbitrary Dimension

Convert Spatial Object to Pixel Image

Distance Map Using Rectangular Distance Metric

Test Whether An Object Is A Window

multiplicity.ppp

Count Multiplicity of Duplicate Points

Find Nearest Point in a Region

restrict.colourmap

Restrict a Colour Map to a Subset of Values

List of Two-Dimensional Spatial Objects

Number of Line Segments in a Line Segment Pattern

Apply Vector Translation To Pixel Image

Marks of a Tessellation

Generate grid of parallel lines with random displacement

Nearest Neighbours Between Two Patterns in 3D

Pairwise distances

Summarizing a Quadrature Scheme

Subset of Line Segment Satisfying A Condition

Map Duplicate Entries to Unique Entries

test.crossing.psp

Check Whether Segments Cross

Read Point Pattern From Data File

plot.hyperframe

Plot Entries in a Hyperframe

Extract Unique Points from a Spatial Point Pattern

Spokes pattern of dummy points

Explode a Point Pattern by Displacing Duplicated Points

Tessellation Using Polar Coordinates

Test Which Side of Infinite Line a Point Falls On

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

update.symbolmap

Update a Graphics Symbol Map.

Plot Image or Tessellation Using Texture Fill

Divide Point Pattern into Sub-patterns

Plot a Spatial Quadrature Scheme

Summary of a Line Segment Pattern Dataset

Quantile Function for Images

summary.splitppp

Summary of a Split Point Pattern

Quadrature Scheme Based on Pixel Grid

summary.anylist

Summary of a List of Things

Plot a Three-Dimensional Point Pattern

pppmatching.object

Class of Point Matchings

Union of Data and Dummy Points

pairdist.default

Pairwise distances

tweak.colourmap

Change Colour Values in a Colour Map

Extract Pixel Centres as Point Pattern

Draw Points or Lines on a Surface Viewed in Perspective

plot a Spatial Point Pattern

Lengths of Line Segments

Create A Regular Polygon

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Three Dimensional Point Pattern

Print Progress Reports

Level Set of a Pixel Image

Superimpose Several Geometric Patterns

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Record the Computation Time

Text, Arrow or Scale Bar in a Diagram

Place Points Evenly Along Specified Lines

Tessellation Delimited by Several Sets

Convert Window to Another Unit of Length

Convert Pixel Array Between Different Conventions

plot.quadratcount

Plot Quadrat Counts

Spatial Dimension of a Dataset

Estimate window from points alone

Class of Line Segment Patterns

Create a Point Matching

Print Brief Details of a Spatial Window

Multidimensional Space-Time Point Pattern

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Create a Line Segment Pattern

Rotate a Point Pattern

project2segment

Move Point To Nearest Line

Print a Quadrature Scheme

Reflect In Origin

Rotate a Window

Rotate or Shift Infinite Lines

Approximate a Polygon by a Simpler Polygon

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Vertices of a Window

Compute Areas of Tiles in a Tessellation

Rounding of Pixel Values

Subset of Point Pattern Satisfying A Condition

Rotate a Line Segment Pattern

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Apply Vector Translation To Window

methods.distfun

Geometrical Operations for Distance Functions

Nearest neighbour distances in three dimensions

Apply Vector Translation To Line Segment Pattern

Quasirandom Patterns

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

Reorder Levels of a Factor-Valued Image or Pattern

Stratified random point pattern

Simple Point-and-Click Interface Panels

scaletointerval

Rescale Data to Lie Between Specified Limits

Nearest Neighbour Distances in Any Dimensions

spatstat.geom-internal

Internal spatstat.geom functions

Nearest Neighbours in Any Dimensions

Cut Line Segments Where They Intersect

Graphics Symbol Map

Summary of a Spatial Window

Plot a Graphics Symbol Map

Create a Tessellation

Add Text Labels to Spatial Pattern

Volume of an Object

Determine Which Tile Contains Each Given Point

Cut margins from rectangle

Summary of a List of Spatial Objects

triangulate.owin

Decompose Window into Triangles

Name for Unit of Length

Convert Window to Binary Mask under Constraints

plot.pppmatching

Plot a Point Matching

Perspective Plot of Pixel Image

Perspective Plot of Marked Point Pattern

Apply Numerical Rounding to Spatial Coordinates

Plot a List of Images

Check For Empty Tiles in a Tessellation

Plot a Tessellation

Names of Tiles in a Tessellation

Detect Numerical Rounding

Print Names and Version Numbers of Libraries Loaded

Class of Quadrature Schemes

Convert Point Pattern to Another Unit of Length

Extract the Total Computation Time

Create Colour-Valued Pixel Image

Convert Line Segment Pattern to Another Unit of Length

summary.distfun

Summarizing a Function of Spatial Location

Set Covariance of a Window

spatstat.geom-package

The spatstat.geom Package

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Separate Multiple Columns of Marks

spatstat.options

Internal Options in Spatstat Package

Summarizing a Pixel Image

Extract List of Tiles in a Tessellation

Unstack Each Spatial Object in a List of Objects