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spatstat.geom (version 3.3-2)

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'.)

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Version

Install

install.packages('spatstat.geom')

Monthly Downloads

66,163

Version

3.3-2

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

July 15th, 2024

Functions in spatstat.geom (3.3-2)

Extract.anylist

Extract or Replace Subset of a List of Things

Extract or Replace Subset of Point Pattern

Extract or Replace Subset of a List of Things

Extract Subset of Window

Minkowski Sum of Windows

Extract Subset of Multidimensional Point Pattern

Reset Values in Subset of Image

Apply Geometrical Transformation To Tessellation

Apply Affine Transformation To Pixel Image

Extract Subset of Image

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Apply Affine Transformation To Window

Extract or Change the Window of a Spatial Object

Convert Data to Multi-Dimensional Box

Extract Window of Spatial Object

Convert to Colour Map

Extract.layered

Extract or Replace Subset of a Layered Object

Extract or Replace Subset of a List of Spatial Objects

Orientation Angles of Line Segments

Extract.splitppp

Extract or Replace Sub-Patterns

Convert Data To Layered Object

Check Whether Image Contains NA Values

Difference of Disc Areas

Pixel Image Approximation of a Window

List of Objects

Convert Data to Three-Dimensional Box

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

as.data.frame.tess

Convert Tessellation to Data Frame

Area of a Window

Difference of Disc Areas

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

as.data.frame.im

Convert Pixel Image to Data Frame

as.function.tess

Convert a Tessellation to a Function

bounding.box.xy

Convex Hull of Points

Bounding Box of a Window, Image, or Point Pattern

Interactively Measure Distance

Convert Data to Hyperframe

Interactively Define a Polygon

Convert Pixel Image to Matrix or Array

Convert to Pixel Image

Convert Data To Class ppp

Convert Data To Class psp

Extract Subset of Line Segment Pattern

Convert Pixel Image to Matrix

Convert Data To Class owin

Convert Data To Tessellation

Distance to Boundary of Window

Close Triples of Points

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Create Colour Scheme for a Range of Numbers

Convert a Window to a Polygonal Window

Centroid of a window

Convert and Compare Colours in Different Formats

Distance to Boundary of Window

Distance to Boundary of Window

Extract or Replace Subset of Tessellation

Subset of Quadrature Scheme

Determine A Common Spatial Domain And Pixel Resolution

Border Region of a Window

Cover Region with Discs

Subdivide a Window or Tessellation using a Set of Lines

S3 Group Generic methods for images

S3 Group Generic methods for List of Images

Extract or Change the Containing Rectangle of a Spatial Object

Close Pairs of Points

Interactively Define a Rectangle

Close Pairs of Points in 3 Dimensions

Apply Affine Transformation To Point Pattern

Pairwise distances

Connected components

Morphological Closing

Convert Pixel Image from Numeric to Factor

Array of Contour Plots

Apply Affine Transformation To Line Segment Pattern

Fill Plot With Texture

Connected Components of Tiles of a Tessellation

Contour plot of pixel image

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

as.data.frame.owin

Convert Window to Data Frame

Classify Points in a Point Pattern

Corners of a rectangle

Convex Hull of Points

Pairwise distances between two different line segment patterns

Apply Affine Transformation

Connected Components of a Point Pattern

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

Combine Two Line Segment Patterns

Smallest Enclosing Circle

Weil's Convexifying Operation

Apply Function to Every Neighbourhood in a Point Pattern

Crossing Points of Two Line Segment Patterns

Geometrical Calculations for Multi-Dimensional Box

Three-Dimensional Box

Multi-Dimensional Box

Distance Metric Defined by Convex Set

Convolution of Pixel Images

Buffer Distance Tessellation

Convert Pixel Image to Function of Coordinates

as.function.owin

Convert Window to Indicator Function

Generate a Default Pattern of Dummy Points

Colour Lookup Tables

Diameter of a Window

Pairwise distances between two different point patterns

default.symbolmap

Default Symbol Map for Plotting a Spatial Pattern

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Extract or Assign Colour Values in a Colour Map

complement.owin

Take Complement of a Window

Dirichlet Tessellation of Point Pattern

Compute Areas of Tiles in Dirichlet Tessellation

Distance Map as a Function

Diameter of an Object

Distance Map of Line Segment Pattern

Concatenate x,y Coordinate Vectors

default.symbolmap.ppp

Default Symbol Map for Point Pattern

Convert List of Two-Dimensional Spatial Objects

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

framedist.pixels

Distance to Bounding Frame

Spatial Function Class

Geometrical Calculations for Three-Dimensional Box

Apply Function to Image Broken Down by Factor

Safely Convert Point Pattern Window to Binary Mask

Apply a Function to a Point Pattern Broken Down by Factor

Delaunay Triangulation of Point Pattern

Circular Window

Elliptical Window.

Area of Part of Disc

Endpoints of Line Segment Pattern

Rectangular grid of points

Compute Quadrature Weights Based on Grid Counts

Class of Images

Extract the Domain of any Spatial Object

Interactively Add Points

edit.hyperframe

Invoke Text Editor on Hyperframe

Spatial Covariance of a Pixel Image

Make Objects Compatible

delaunayDistance

Distance on Delaunay Triangulation

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Invoke Text Editor on Spatial Data

Make Pixel Images Compatible

Farthest Distance to Boundary of Window

Integral of a Pixel Image

Areas of Morphological Erosions

Intersect Infinite Straight Lines with a Window

Determine Duplicated Points in a Spatial Point Pattern

Check Whether Points Have Close Neighbours

Empirical Intensity of Point Pattern

Intensity of a Multidimensional Space-Time Point Pattern

Morphological Erosion by a Disc

Test Whether Objects Are Compatible

Extract Boundary Edges of a Window.

Intersection Of Boxes Of Arbitrary Dimension

Histogram of Pixel Values in an Image

Hyper Data Frame

Test Whether Pixel Images Are Compatible

First or Last Part of a Spatial Pattern

Intersection, Union or Set Subtraction of Windows

Identify Points in a Point Pattern

Exchange X and Y Coordinates

Intensity of a Dataset or a Model

Test Whether An Object Is A Pixel Image

Identify Segments in a Line Segment Pattern

Fourier Basis Functions

Intersection of Two Tessellations

Determine Whether an Object is Connected

is.connected.ppp

Determine Whether a Point Pattern is Connected

Perform Geometric Task using a Specified Metric

Test Whether An Object Is A Linear Network

Test Whether Marks Are Present

Test Whether A Point Pattern is Marked

crossdist.default

Pairwise distances between two different sets of points

Empirical Intensity of Line Segment Pattern

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

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Make Windows Compatible

Create List of Plotting Layers

Pairwise distances between two different three-dimensional point patterns

Extract or Replace the Plot Arguments of a Layered Object

Methods for Three-Dimensional Box

Test Whether a Window is Convex

Methods for Multi-Dimensional Box

harmoniseLevels

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

Create a Pixel Image Object

Test Whether An Object Is Empty

Apply Function Pixelwise to List of Images

Test Whether Points Are Inside A Multidimensional Box

Areas of Morphological Dilations

Morphological Dilation

Determine Type of Window

Generate a Row or Column Arrangement of Rectangles.

Lengths of Line Segments

Marks of a Tessellation

Test Whether Points Are Inside A Window

multiplicity.ppp

Count Multiplicity of Duplicate Points

Distance Map of Window

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

Determine Whether One Window is Contained In Another

Summarise Marks in Every Neighbourhood in a Point Pattern

Distance Map of Point Pattern

Test Whether An Object Is A Window

Distance Metric

edges2triangles

List Triangles in a Graph

Test Whether An Object Is A Point Pattern

invoke.symbolmap

Plot Data Using Graphics Symbol Map

nearest.raster.point

Find Pixel Nearest to a Given Point

List Dihedral Triples in a Graph

Image of Nearest Defined Pixel Value

Nearest Neighbours Between Two Patterns in 3D

Morphological Erosion of Windows

Evaluate Expression Involving Pixel Images

Midpoints of Line Segment Pattern

Add margins to box in any dimension

Mean and Median of Pixel Values in an Image

Nearest neighbour distances

Recognise a Multi-Dimensional Box

Nearest Neighbours Between Two Patterns in Any Dimensions

Find Line Segment Nearest to Each Point

pairdist.default

Pairwise distances

Add margins to rectangle

Pairwise distances in Three Dimensions

Marks of a Point Pattern

Merge Levels of a Factor

Hexagonal Grid or Tessellation

Nearest neighbour distances in three dimensions

Histogram of Values of a Spatial Function

Pairwise distances between line segments

Number of Line Segments in a Line Segment Pattern

Count Number of Vertices

Perimeter Length of Window

methods.layered

Methods for Layered Objects

Marks of a Line Segment Pattern

Methods for three-dimensional point patterns

Nearest Neighbour Index Map as a Function

Methods for Multidimensional Space-Time Point Patterns

Find Largest Circle Inside Window

K-th Nearest Point Map

Morphological Opening

Plot a Pixel Image

Nearest Neighbours Between Two Patterns

Nearest neighbours in three dimensions

Pad the Border of a Pixel Image

methods.unitname

Methods for Units

Compute Area of Overlap

Nearest Neighbour Distances in Any Dimensions

Pairwise distances

Draw Points or Lines on a Surface Viewed in Perspective

Plot a List of Images

Extract Pixel Centres as Point Pattern

Infinite Straight Lines

Nearest neighbour distances between line segments

interp.colourmap

Interpolate smoothly between specified colours

Nearest Neighbours in Any Dimensions

Plot a List of Spatial Objects

Interpolate a Pixel Image

Plot a List of Things

Plot a List of Point Patterns

Mark of Nearest Neighbour

pppmatching.object

Class of Point Matchings

Create a Point Pattern

Pairwise distances

Pairwise Distances in Any Dimensions

Test whether Object is Multitype

Nearest neighbour

Plot a Colour Map

Convert Window to Binary Mask under Constraints

Colour Map for pH Values

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Class of Point Patterns

Level Set of a Pixel Image

Distance Between Two Point Patterns

plot.hyperframe

Plot Entries in a Hyperframe

Make Periodic Copies of a Spatial Pattern

Plot a Three-Dimensional Point Pattern

Quadrature Scheme Based on Pixel Grid

plot a Spatial Point Pattern

Create a Point Matching

Perspective Plot of Pixel Image

project2segment

Move Point To Nearest Line

Distance for a Point Pattern Matching

Find Nearest Point in a Region

plot.pppmatching

Plot a Point Matching

Plot a List of Things

Plot a Spatial Quadrature Scheme

plot a Spatial Line Segment Pattern

Multidimensional Space-Time Point Pattern

Compute Minimum or Maximum Nearest-Neighbour Distance

methods.distfun

Geometrical Operations for Distance Functions

Convert Line Segment Pattern to Binary Pixel Mask

Plot a Yardstick or Scale Bar

plot.textstring

Plot a Text String

Quantile Function for Images

plot.quadratcount

Plot Quadrat Counts

plot.texturemap

Plot a Texture Map

Methods for Spatial Functions

Quasirandom Patterns

Place Points Evenly Along Specified Lines

Quadrat counting for a point pattern

Count Number of Geometrical Objects in a Spatial Dataset

Plot a Graphics Symbol Map

Number of Points in a Point Pattern

Divide Region into Quadrats

Class of Quadrature Schemes

Print Brief Details of a Point Pattern Dataset

Print Brief Details of a Line Segment Pattern Dataset

Plot a Tessellation

Generate grid of parallel lines with random displacement

Create a Window

Print a Quadrature Scheme

Create A Regular Polygon

Reorder Levels of a Factor-Valued Image or Pattern

Quantile Tessellation

Convert Pixel Image to Another Unit of Length

Print Progress Reports

Convert Spatial Object to Pixel Image

Convert Window to Another Unit of Length

Sample Quantiles of Pixel Image

Explode a Point Pattern by Displacing Duplicated Points

Volume of an Object

Create Colour-Valued Pixel Image

Rotate a Window

Convert Window to Pixel Image

Create a Line Segment Pattern

Rotate a Point Pattern

Detect Numerical Rounding

Simulate systematic random point pattern

Convert Point Pattern to Pixel Image

Generate Quasirandom Point Pattern in Given Window

Class of Line Segment Patterns

Rotate a Line Segment Pattern

Reflect In Origin

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Distance Map Using Rectangular Distance Metric

Apply Numerical Rounding to Spatial Coordinates

Apply Vector Translation To Line Segment Pattern

spatstat.geom-internal

Internal spatstat.geom functions

Cartesian Coordinates for a Pixel Raster

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Convert Point Pattern to Another Unit of Length

Convert Line Segment Pattern to Pixel Image

Apply Scalar Dilation

Plot a Spatial Window

Apply Vector Translation To Window

Convert Line Segment Pattern to Another Unit of Length

Cut Line Segments Where They Intersect

scaletointerval

Rescale Data to Lie Between Specified Limits

Apply Vector Translation

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Spokes pattern of dummy points

Print Names and Version Numbers of Libraries Loaded

Tessellation Using Polar Coordinates

Require a Specific Version of a Package

Read Point Pattern From Data File

Convert dataset to another unit of length

Apply Vector Translation To Point Pattern

restrict.colourmap

Restrict a Colour Map to a Subset of Values

Divide Image Into Sub-images

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Set Covariance of a Window

Three Dimensional Point Pattern

spatstat.geom-package

The spatstat.geom Package

Divide Point Pattern into Sub-patterns

Estimate window from points alone

Text, Arrow or Scale Bar in a Diagram

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

Divide Multidimensional Point Pattern into Sub-patterns

Superimpose Several Geometric Patterns

Random Perturbation of a Point Pattern

Spatial Dimension of a Dataset

summary.distfun

Summarizing a Function of Spatial Location

summary.anylist

Summary of a List of Things

Stratified random point pattern

Summarizing a Pixel Image

Graphics Symbol Map

Add Text Labels to Spatial Pattern

Print Brief Details of an Image

Simple Point-and-Click Interface Panels

Subset of Point Pattern Satisfying A Condition

Summary of a List of Things

Print Brief Details of a Spatial Window

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Create a Tessellation

Test Which Side of Infinite Line a Point Falls On

Summarizing a Quadrature Scheme

test.crossing.psp

Check Whether Segments Cross

Generate a Quadrature Scheme from a Point Pattern

Union of Data and Dummy Points

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Plot Image or Tessellation Using Texture Fill

Compute Areas of Tiles in a Tessellation

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Rotate a Pixel Image

Cut margins from rectangle

rescue.rectangle

Convert Window Back To Rectangle

Extract Unique Points from a Spatial Point Pattern

Summary of a Spatial Window

Determine Which Tile Contains Each Given Point

Apply Vector Translation To Pixel Image

tweak.colourmap

Change Colour Values in a Colour Map

Rotate or Shift Infinite Lines

Summary of a Line Segment Pattern Dataset

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Unstack Each Spatial Object in a List of Objects

update.symbolmap

Update a Graphics Symbol Map.

run.simplepanel

Run Point-and-Click Interface

spatstat.options

Internal Options in Spatstat Package

Extract List of Tiles in a Tessellation

Check For Empty Tiles in a Tessellation

Generate N Uniform Random Points in a Rectangle

Subset of Line Segment Satisfying A Condition

Approximate a Polygon by a Simpler Polygon

Convert Pixel Array Between Different Conventions

Map Duplicate Entries to Unique Entries

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

Summary of a List of Spatial Objects

List of Two-Dimensional Spatial Objects

Summary of a Point Pattern Dataset

summary.splitppp

Summary of a Split Point Pattern

triangulate.owin

Decompose Window into Triangles

Tessellation Delimited by Several Sets

Rounding of Pixel Values

Name for Unit of Length

Names of Tiles in a Tessellation

Record the Computation Time

Vertices of a Window

Extract the Total Computation Time

Separate Multiple Columns of Marks

Find Location of Maximum in a Pixel Image