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spatstat.geom (version 3.3-3)

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'.)

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Version

Install

install.packages('spatstat.geom')

Monthly Downloads

51,396

Version

3.3-3

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

September 18th, 2024

Functions in spatstat.geom (3.3-3)

Extract or Replace Subset of Point Pattern

Extract or Replace Subset of a List of Things

Extract Subset of Window

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Extract Subset of Multidimensional Point Pattern

Extract.layered

Extract or Replace Subset of a Layered Object

Extract Subset of Line Segment Pattern

Extract.anylist

Extract or Replace Subset of a List of Things

Subset of Quadrature Scheme

Extract Subset of Image

Extract or Replace Subset of a List of Spatial Objects

S3 Group Generic methods for images

Extract or Replace Subset of Tessellation

Extract.splitppp

Extract or Replace Sub-Patterns

S3 Group Generic methods for List of Images

Extract Window of Spatial Object

Extract or Change the Containing Rectangle of a Spatial Object

Extract or Change the Window of a Spatial Object

Apply Geometrical Transformation To Tessellation

Apply Affine Transformation To Pixel Image

Reset Values in Subset of Image

Minkowski Sum of Windows

Apply Affine Transformation To Window

Fill Plot With Texture

Orientation Angles of Line Segments

Convert to Colour Map

Check Whether Image Contains NA Values

Convert Data to Multi-Dimensional Box

List of Objects

Area of a Window

Difference of Disc Areas

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

Apply Affine Transformation

as.data.frame.im

Convert Pixel Image to Data Frame

Difference of Disc Areas

as.function.tess

Convert a Tessellation to a Function

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

as.data.frame.owin

Convert Window to Data Frame

Convert Data to Hyperframe

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 Function of Coordinates

as.function.owin

Convert Window to Indicator Function

Convert Pixel Image to Matrix or Array

Convert List of Two-Dimensional Spatial Objects

Convert Data To Class owin

Convert Data to Three-Dimensional Box

Apply Affine Transformation To Point Pattern

Create Colour Scheme for a Range of Numbers

Border Region of a Window

Distance to Boundary of Window

Distance to Boundary of Window

Convert Pixel Image to Matrix

Interactively Measure Distance

Convert a Window to a Polygonal Window

Interactively Define a Polygon

Apply Affine Transformation To Line Segment Pattern

Close Triples of Points

Combine Two Line Segment Patterns

Morphological Closing

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Close Pairs of Points

Test Whether Objects Are Compatible

Smallest Enclosing Circle

Convert to Pixel Image

Close Pairs of Points in 3 Dimensions

Apply Function to Every Neighbourhood in a Point Pattern

Three-Dimensional Box

Subdivide a Window or Tessellation using a Set of Lines

Test Whether Pixel Images Are Compatible

Connected Components of Tiles of a Tessellation

Convert Data To Class ppp

Contour plot of pixel image

Interactively Define a Rectangle

Apply Function to Image Broken Down by Factor

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Array of Contour Plots

Corners of a rectangle

Apply a Function to a Point Pattern Broken Down by Factor

Convert Data To Class psp

Pairwise distances between two different line segment patterns

bounding.box.xy

Convex Hull of Points

Convert and Compare Colours in Different Formats

Convert Data To Layered Object

Geometrical Calculations for Multi-Dimensional Box

Determine A Common Spatial Domain And Pixel Resolution

crossdist.default

Pairwise distances between two different sets of points

Bounding Box of a Window, Image, or Point Pattern

Cover Region with Discs

Pairwise distances between two different three-dimensional point patterns

Diameter of a Window

Safely Convert Point Pattern Window to Binary Mask

Generate a Default Pattern of Dummy Points

Crossing Points of Two Line Segment Patterns

Multi-Dimensional Box

default.symbolmap

Default Symbol Map for Plotting a Spatial Pattern

Determine Duplicated Points in a Spatial Point Pattern

Distance Map as a Function

Extract Boundary Edges of a Window.

Distance Map of Line Segment Pattern

Extract the Domain of any Spatial Object

Diameter of an Object

Exchange X and Y Coordinates

Pairwise distances

Fourier Basis Functions

Pixel Image Approximation of a Window

Convert Data To Tessellation

Buffer Distance Tessellation

Find Largest Circle Inside Window

Colour Lookup Tables

Morphological Erosion of Windows

Evaluate Expression Involving Pixel Images

Check Whether Points Have Close Neighbours

default.symbolmap.ppp

Default Symbol Map for Point Pattern

Infinite Straight Lines

Distance to Boundary of Window

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Extract or Assign Colour Values in a Colour Map

Delaunay Triangulation of Point Pattern

Dirichlet Tessellation of Point Pattern

Compute Areas of Tiles in Dirichlet Tessellation

First or Last Part of a Spatial Pattern

Class of Images

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Recognise a Multi-Dimensional Box

Spatial Covariance of a Pixel Image

Geometrical Calculations for Three-Dimensional Box

Connected components

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Determine Type of Window

Circular Window

Area of Part of Disc

edit.hyperframe

Invoke Text Editor on Hyperframe

Determine Whether One Window is Contained In Another

Empirical Intensity of Point Pattern

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Intensity of a Multidimensional Space-Time Point Pattern

Intersection of Two Tessellations

multiplicity.ppp

Count Multiplicity of Duplicate Points

nearest.raster.point

Find Pixel Nearest to a Given Point

edges2triangles

List Triangles in a Graph

List Dihedral Triples in a Graph

Invoke Text Editor on Spatial Data

Perform Geometric Task using a Specified Metric

Connected Components of a Point Pattern

Test Whether An Object Is A Linear Network

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Areas of Morphological Erosions

Morphological Erosion by a Disc

Nearest neighbour distances

Centroid of a window

Make Windows Compatible

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

Interactively Add Points

Farthest Distance to Boundary of Window

Generate a Row or Column Arrangement of Rectangles.

Nearest neighbour distances in three dimensions

Distance Metric Defined by Convex Set

Lengths of Line Segments

Intersect Infinite Straight Lines with a Window

Rectangular grid of points

harmoniseLevels

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

complement.owin

Take Complement of a Window

Methods for Three-Dimensional Box

Concatenate x,y Coordinate Vectors

Hexagonal Grid or Tessellation

Methods for Multi-Dimensional Box

Convolution of Pixel Images

Compute Quadrature Weights Based on Grid Counts

Convex Hull of Points

Create a Pixel Image Object

Pairwise distances between two different point patterns

Count Number of Geometrical Objects in a Spatial Dataset

Apply Function Pixelwise to List of Images

Test Whether Points Are Inside A Multidimensional Box

Test Whether Points Are Inside A Window

Determine Whether an Object is Connected

Histogram of Values of a Spatial Function

Weil's Convexifying Operation

is.connected.ppp

Determine Whether a Point Pattern is Connected

Test Whether a Window is Convex

Convert Pixel Image from Numeric to Factor

Number of Points in a Point Pattern

Test Whether An Object Is Empty

Classify Points in a Point Pattern

Test Whether An Object Is A Window

Integral of a Pixel Image

Intensity of a Dataset or a Model

Test Whether An Object Is A Point Pattern

Make Periodic Copies of a Spatial Pattern

Marks of a Point Pattern

Areas of Morphological Dilations

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

delaunayDistance

Distance on Delaunay Triangulation

Perspective Plot of Pixel Image

Test Whether Marks Are Present

Nearest Neighbours Between Two Patterns

Plot a Spatial Window

Distance Map of Window

Plot a Three-Dimensional Point Pattern

Nearest Neighbour Index Map as a Function

Marks of a Line Segment Pattern

Distance Map of Point Pattern

Morphological Dilation

Elliptical Window.

K-th Nearest Point Map

methods.distfun

Geometrical Operations for Distance Functions

Endpoints of Line Segment Pattern

Methods for Spatial Functions

Place Points Evenly Along Specified Lines

framedist.pixels

Distance to Bounding Frame

Test Whether A Point Pattern is Marked

Tessellation Using Polar Coordinates

Nearest Neighbours Between Two Patterns in 3D

Class of Point Patterns

Distance Between Two Point Patterns

Add margins to box in any dimension

Spatial Function Class

Add margins to rectangle

pairdist.default

Pairwise distances

Histogram of Pixel Values in an Image

Make Objects Compatible

Nearest Neighbours Between Two Patterns in Any Dimensions

Create List of Plotting Layers

Mark of Nearest Neighbour

Hyper Data Frame

Intersection Of Boxes Of Arbitrary Dimension

Make Pixel Images Compatible

Intersection, Union or Set Subtraction of Windows

Print Progress Reports

Identify Points in a Point Pattern

Test Whether An Object Is A Pixel Image

Extract or Replace the Plot Arguments of a Layered Object

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

Pairwise distances in Three Dimensions

Pairwise distances between line segments

Nearest neighbour

project2segment

Move Point To Nearest Line

Perimeter Length of Window

Create a Window

Level Set of a Pixel Image

Plot a List of Images

Identify Segments in a Line Segment Pattern

Marks of a Tessellation

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Quantile Tessellation

restrict.colourmap

Restrict a Colour Map to a Subset of Values

Empirical Intensity of Line Segment Pattern

Summarise Marks in Every Neighbourhood in a Point Pattern

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Perspective Plot of Marked Point Pattern

Methods for Multidimensional Space-Time Point Patterns

plot a Spatial Point Pattern

methods.unitname

Methods for Units

plot.pppmatching

Plot a Point Matching

Distance for a Point Pattern Matching

Explode a Point Pattern by Displacing Duplicated Points

Plot a List of Point Patterns

Image of Nearest Defined Pixel Value

Draw Points or Lines on a Surface Viewed in Perspective

interp.colourmap

Interpolate smoothly between specified colours

Interpolate a Pixel Image

Plot a List of Things

Find Line Segment Nearest to Each Point

Plot a Colour Map

Test whether Object is Multitype

Nearest neighbours in three dimensions

Nearest Neighbours in Any Dimensions

plot.quadratcount

Plot Quadrat Counts

Plot a List of Spatial Objects

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Rotate a Pixel Image

Mean and Median of Pixel Values in an Image

Generate N Uniform Random Points in a Rectangle

Apply Scalar Dilation

Convert Window to Binary Mask under Constraints

Compute Minimum or Maximum Nearest-Neighbour Distance

Apply Vector Translation To Window

Colour Map for pH Values

Apply Vector Translation To Point Pattern

Pairwise distances

Merge Levels of a Factor

methods.layered

Methods for Layered Objects

Methods for three-dimensional point patterns

List of Two-Dimensional Spatial Objects

Nearest Neighbour Distances in Any Dimensions

Nearest neighbour distances between line segments

Three Dimensional Point Pattern

Distance Metric

Midpoints of Line Segment Pattern

Morphological Opening

Number of Line Segments in a Line Segment Pattern

Create a Point Pattern

Multidimensional Space-Time Point Pattern

Print Brief Details of an Image

Count Number of Vertices

Convert Line Segment Pattern to Another Unit of Length

Plot a Graphics Symbol Map

Pad the Border of a Pixel Image

Pairwise distances

Create a Point Matching

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

Compute Area of Overlap

Pairwise Distances in Any Dimensions

pppmatching.object

Class of Point Matchings

Class of Line Segment Patterns

Summary of a List of Things

plot.hyperframe

Plot Entries in a Hyperframe

Summary of a Spatial Window

rescue.rectangle

Convert Window Back To Rectangle

Plot a Pixel Image

Create Colour-Valued Pixel Image

Convert Line Segment Pattern to Binary Pixel Mask

plot a Spatial Line Segment Pattern

Plot a Spatial Quadrature Scheme

Estimate window from points alone

scaletointerval

Rescale Data to Lie Between Specified Limits

Extract Pixel Centres as Point Pattern

Plot a Tessellation

plot.textstring

Plot a Text String

Convert Spatial Object to Pixel Image

Graphics Symbol Map

Print Brief Details of a Line Segment Pattern Dataset

Print a Quadrature Scheme

Sample Quantiles of Pixel Image

Find Nearest Point in a Region

Convert Line Segment Pattern to Pixel Image

Quadrature Scheme Based on Pixel Grid

Read Point Pattern From Data File

Quantile Function for Images

Create a Tessellation

Rotate or Shift Infinite Lines

Approximate a Polygon by a Simpler Polygon

Create a Line Segment Pattern

Reflect In Origin

Rotate a Window

Apply Numerical Rounding to Spatial Coordinates

Detect Numerical Rounding

Convert Window to Pixel Image

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

Print Names and Version Numbers of Libraries Loaded

Record the Computation Time

Convert Pixel Array Between Different Conventions

update.symbolmap

Update a Graphics Symbol Map.

Convert Point Pattern to Pixel Image

Tessellation Delimited by Several Sets

Print Brief Details of a Spatial Window

Plot a List of Things

Set Covariance of a Window

spatstat.geom-internal

Internal spatstat.geom functions

Create A Regular Polygon

spatstat.geom-package

The spatstat.geom Package

Print Brief Details of a Point Pattern Dataset

Reorder Levels of a Factor-Valued Image or Pattern

Require a Specific Version of a Package

plot.texturemap

Plot a Texture Map

Plot a Yardstick or Scale Bar

Rotate a Point Pattern

Class of Quadrature Schemes

Rotate a Line Segment Pattern

Quadrat counting for a point pattern

Subset of Line Segment Satisfying A Condition

Stratified random point pattern

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Cut Line Segments Where They Intersect

summary.anylist

Summary of a List of Things

Quasirandom Patterns

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Summarizing a Quadrature Scheme

Divide Region into Quadrats

Apply Vector Translation To Line Segment Pattern

Generate Quasirandom Point Pattern in Given Window

Convert dataset to another unit of length

spatstat.options

Internal Options in Spatstat Package

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Separate Multiple Columns of Marks

Summary of a List of Spatial Objects

Divide Multidimensional Point Pattern into Sub-patterns

Spokes pattern of dummy points

Generate a Quadrature Scheme from a Point Pattern

Cut margins from rectangle

Convert Pixel Image to Another Unit of Length

test.crossing.psp

Check Whether Segments Cross

Random Perturbation of a Point Pattern

summary.distfun

Summarizing a Function of Spatial Location

Cartesian Coordinates for a Pixel Raster

Add Text Labels to Spatial Pattern

Plot Image or Tessellation Using Texture Fill

Summarizing a Pixel Image

Distance Map Using Rectangular Distance Metric

Test Which Side of Infinite Line a Point Falls On

Name for Unit of Length

triangulate.owin

Decompose Window into Triangles

Generate grid of parallel lines with random displacement

tweak.colourmap

Change Colour Values in a Colour Map

Convert Window to Another Unit of Length

Unstack Each Spatial Object in a List of Objects

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Simple Point-and-Click Interface Panels

Union of Data and Dummy Points

Find Location of Maximum in a Pixel Image

Convert Point Pattern to Another Unit of Length

Simulate systematic random point pattern

run.simplepanel

Run Point-and-Click Interface

Apply Vector Translation

Text, Arrow or Scale Bar in a Diagram

Apply Vector Translation To Pixel Image

Divide Image Into Sub-images

Spatial Dimension of a Dataset

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Divide Point Pattern into Sub-patterns

summary.splitppp

Summary of a Split Point Pattern

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Superimpose Several Geometric Patterns

Compute Areas of Tiles in a Tessellation

Determine Which Tile Contains Each Given Point

Subset of Point Pattern Satisfying A Condition

Extract Unique Points from a Spatial Point Pattern

Map Duplicate Entries to Unique Entries

Summary of a Point Pattern Dataset

Vertices of a Window

Volume of an Object

Summary of a Line Segment Pattern Dataset

Names of Tiles in a Tessellation

Extract List of Tiles in a Tessellation

Check For Empty Tiles in a Tessellation

Extract the Total Computation Time

Rounding of Pixel Values