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spatstat.geom (version 3.2-8)

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

3.2-8

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

January 26th, 2024

Functions in spatstat.geom (3.2-8)

Extract Subset of Window

Subset of Quadrature Scheme

Extract or Replace Subset of a List of Things

Extract or Replace Subset of Point Pattern

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Extract Subset of Image

Extract Subset of Multidimensional Point Pattern

Extract Subset of Line Segment Pattern

Extract.layered

Extract or Replace Subset of a Layered Object

Extract.anylist

Extract or Replace Subset of a List of Things

Extract.splitppp

Extract or Replace Sub-Patterns

Extract or Replace Subset of Tessellation

Extract or Replace Subset of a List of Spatial Objects

Extract or Change the Window of a Spatial Object

Extract Window of Spatial Object

Reset Values in Subset of Image

Minkowski Sum of Windows

Extract or Change the Containing Rectangle of a Spatial Object

S3 Group Generic methods for images

S3 Group Generic methods for List of Images

Fill Plot With Texture

Check Whether Image Contains NA Values

Apply Affine Transformation To Window

Apply Affine Transformation To Pixel Image

Apply Affine Transformation

List of Objects

Apply Affine Transformation To Point Pattern

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

Area of a Window

Difference of Disc Areas

Apply Geometrical Transformation To Tessellation

as.data.frame.im

Convert Pixel Image to Data Frame

Apply Affine Transformation To Line Segment Pattern

as.function.tess

Convert a Tessellation to a Function

Convert Data to Multi-Dimensional Box

Convert Data To Class owin

Convert a Window to a Polygonal Window

Convert to Colour Map

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Combine Two Line Segment Patterns

Convert Data To Tessellation

Apply Function to Every Neighbourhood in a Point Pattern

Distance to Boundary of Window

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Subdivide a Window or Tessellation using a Set of Lines

Convert to Pixel Image

Interactively Define a Rectangle

Convert Data to Hyperframe

Orientation Angles of Line Segments

Convert Pixel Image to Function of Coordinates

as.function.owin

Convert Window to Indicator Function

Difference of Disc Areas

Convert Pixel Image to Matrix or Array

Convert Pixel Image to Matrix

Convert Data to Three-Dimensional Box

Distance to Boundary of Window

Close Pairs of Points

as.data.frame.tess

Convert Tessellation to Data Frame

as.data.frame.owin

Convert Window to Data Frame

bounding.box.xy

Convex Hull of Points

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

Distance to Boundary of Window

Convert Data To Class ppp

Convert Data To Layered Object

Close Pairs of Points in 3 Dimensions

Apply Function to Image Broken Down by Factor

Convert Data To Class psp

Array of Contour Plots

Pixel Image Approximation of a Window

Smallest Enclosing Circle

Apply a Function to a Point Pattern Broken Down by Factor

Cover Region with Discs

Convert List of Two-Dimensional Spatial Objects

Three-Dimensional Box

Bounding Box of a Window, Image, or Point Pattern

Interactively Measure Distance

Pairwise distances

Close Triples of Points

Morphological Closing

Create Colour Scheme for a Range of Numbers

Connected components

Border Region of a Window

Convert and Compare Colours in Different Formats

Interactively Define a Polygon

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Centroid of a window

complement.owin

Take Complement of a Window

Interactively Add Points

Connected Components of a Point Pattern

delaunayDistance

Distance on Delaunay Triangulation

Determine A Common Spatial Domain And Pixel Resolution

Multi-Dimensional Box

Concatenate x,y Coordinate Vectors

crossdist.default

Pairwise distances between two different sets of points

Intersect Infinite Straight Lines with a Window

Convex Hull of Points

Buffer Distance Tessellation

Pairwise distances between two different three-dimensional point patterns

Connected Components of Tiles of a Tessellation

Generate a Default Pattern of Dummy Points

Geometrical Calculations for Multi-Dimensional Box

Delaunay Triangulation of Point Pattern

Diameter of a Window

Colour Lookup Tables

Diameter of an Object

Extract or Assign Colour Values in a Colour Map

Distance Metric Defined by Convex Set

Geometrical Calculations for Three-Dimensional Box

Convolution of Pixel Images

Contour plot of pixel image

Test Whether Objects Are Compatible

Test Whether Pixel Images Are Compatible

Pairwise distances between two different line segment patterns

Crossing Points of Two Line Segment Patterns

Convert Pixel Image from Numeric to Factor

Weil's Convexifying Operation

Classify Points in a Point Pattern

Dirichlet Tessellation of Point Pattern

Distance Map as a Function

Compute Areas of Tiles in Dirichlet Tessellation

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Areas of Morphological Dilations

Circular Window

Morphological Dilation

Safely Convert Point Pattern Window to Binary Mask

Corners of a rectangle

Distance Map of Line Segment Pattern

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Area of Part of Disc

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Extract the Domain of any Spatial Object

Pairwise distances between two different point patterns

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Distance Map of Window

edit.hyperframe

Invoke Text Editor on Hyperframe

Distance Map of Point Pattern

Areas of Morphological Erosions

Morphological Erosion by a Disc

edges2triangles

List Triangles in a Graph

List Dihedral Triples in a Graph

Fourier Basis Functions

framedist.pixels

Distance to Bounding Frame

Determine Duplicated Points in a Spatial Point Pattern

Invoke Text Editor on Spatial Data

Morphological Erosion of Windows

Farthest Distance to Boundary of Window

Extract Boundary Edges of a Window.

Evaluate Expression Involving Pixel Images

Exchange X and Y Coordinates

Spatial Function Class

Make Pixel Images Compatible

Compute Quadrature Weights Based on Grid Counts

Rectangular grid of points

Add margins to box in any dimension

Make Windows Compatible

First or Last Part of a Spatial Pattern

Histogram of Values of a Spatial Function

Class of Images

Histogram of Pixel Values in an Image

Hexagonal Grid or Tessellation

Elliptical Window.

Spatial Covariance of a Pixel Image

Test Whether Points Are Inside A Multidimensional Box

harmoniseLevels

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

Add margins to rectangle

Make Objects Compatible

Endpoints of Line Segment Pattern

Heat Kernel for a One-Dimensional Rod

Check Whether Points Have Close Neighbours

Intersection Of Boxes Of Arbitrary Dimension

Test Whether Points Are Inside A Window

Weighted Empirical Cumulative Distribution Function

Intersection, Union or Set Subtraction of Windows

Find Largest Circle Inside Window

Identify Points in a Point Pattern

Identify Segments in a Line Segment Pattern

Hyper Data Frame

Infinite Straight Lines

Integral of a Pixel Image

Intensity of a Dataset or a Model

Empirical Intensity of Point Pattern

Intensity of a Multidimensional Space-Time Point Pattern

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Generate a Row or Column Arrangement of Rectangles.

Empirical Intensity of Line Segment Pattern

Create a Pixel Image Object

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

interp.colourmap

Interpolate smoothly between specified colours

Intersection of Two Tessellations

Interpolate a Pixel Image

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Test Whether An Object Is A Pixel Image

Recognise a Multi-Dimensional Box

Lengths of Line Segments

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

Apply Function Pixelwise to List of Images

Test Whether An Object Is A Window

Perform Geometric Task using a Specified Metric

Test Whether An Object Is A Point Pattern

Integral of a Function or Spatial Object

integral.density

Compute Integral of One-Dimensional Kernel Density Estimate.

Test Whether a Window is Convex

Test Whether An Object Is Empty

Marks of a Tessellation

Test whether Object is Multitype

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Level Set of a Pixel Image

Summarise Marks in Every Neighbourhood in a Point Pattern

Test Whether Marks Are Present

Methods for three-dimensional point patterns

Test Whether An Object Is A Linear Network

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

Determine Whether an Object is Connected

Test Whether A Point Pattern is Marked

Create List of Plotting Layers

Marks of a Point Pattern

is.connected.ppp

Determine Whether a Point Pattern is Connected

Extract or Replace the Plot Arguments of a Layered Object

Marks of a Line Segment Pattern

Determine Type of Window

Methods for Multidimensional Space-Time Point Patterns

Determine Whether One Window is Contained In Another

Nearest Neighbours Between Two Patterns in Any Dimensions

Nearest neighbour distances

Distance for a Point Pattern Matching

Merge Levels of a Factor

Methods for Spatial Functions

methods.layered

Methods for Layered Objects

Mean of Empirical Cumulative Distribution Function

Compute Minimum or Maximum Nearest-Neighbour Distance

nearest.raster.point

Find Pixel Nearest to a Given Point

Methods for Multi-Dimensional Box

Image of Nearest Defined Pixel Value

Methods for Three-Dimensional Box

K-th Nearest Point Map

Mark of Nearest Neighbour

Mean and Median of Pixel Values in an Image

methods.distfun

Geometrical Operations for Distance Functions

Nearest neighbour

Perspective Plot of Pixel Image

Nearest Neighbours Between Two Patterns

Draw Points or Lines on a Surface Viewed in Perspective

Nearest neighbours in three dimensions

methods.unitname

Methods for Units

Convert Window to Binary Mask under Constraints

Distance Metric

Compute Area of Overlap

Find Line Segment Nearest to Each Point

Pairwise distances in Three Dimensions

Nearest Neighbours Between Two Patterns in 3D

Pairwise distances

Midpoints of Line Segment Pattern

Nearest Neighbours in Any Dimensions

multiplicity.ppp

Count Multiplicity of Duplicate Points

Count Number of Geometrical Objects in a Spatial Dataset

Nearest neighbour distances in three dimensions

Create a Window

Colour Map for pH Values

Nearest Neighbour Distances in Any Dimensions

Count Number of Vertices

Morphological Opening

Extract Pixel Centres as Point Pattern

Pad the Border of a Pixel Image

plot.hyperframe

Plot Entries in a Hyperframe

Pairwise distances

Plot a Pixel Image

Pairwise Distances in Any Dimensions

Pairwise distances between line segments

Perimeter Length of Window

pairdist.default

Pairwise distances

Convert Spatial Object to Pixel Image

Make Periodic Copies of a Spatial Pattern

Nearest neighbour distances between line segments

Convert Line Segment Pattern to Pixel Image

Quadrature Scheme Based on Pixel Grid

Nearest Neighbour Index Map as a Function

Plot a List of Images

Plot a List of Things

Plot a Colour Map

Number of Points in a Point Pattern

Plot a Spatial Window

plot a Spatial Line Segment Pattern

Plot a Spatial Quadrature Scheme

Place Points Evenly Along Specified Lines

plot.texturemap

Plot a Texture Map

Tessellation Using Polar Coordinates

Plot a Yardstick or Scale Bar

Number of Line Segments in a Line Segment Pattern

Multidimensional Space-Time Point Pattern

Class of Point Patterns

Distance Between Two Point Patterns

Plot a Three-Dimensional Point Pattern

Plot a List of Things

Create A Regular Polygon

Print Brief Details of an Image

Quantiles of Weighted Empirical Cumulative Distribution Function

Class of Line Segment Patterns

Convert Line Segment Pattern to Binary Pixel Mask

Plot a Graphics Symbol Map

Rotate a Line Segment Pattern

plot.quadratcount

Plot Quadrat Counts

Plot a List of Spatial Objects

Convert Window to Pixel Image

Class of Quadrature Schemes

Convert Point Pattern to Pixel Image

Apply Vector Translation

Rotate a Pixel Image

Sample Quantiles of Pixel Image

Create Colour-Valued Pixel Image

Find Nearest Point in a Region

Convert Pixel Image to Another Unit of Length

Create a Line Segment Pattern

plot a Spatial Point Pattern

Three Dimensional Point Pattern

Reflect In Origin

Rotate a Window

Create a Point Pattern

Plot a List of Point Patterns

Divide Region into Quadrats

plot.pppmatching

Plot a Point Matching

Generate a Quadrature Scheme from a Point Pattern

Spatial Dimension of a Dataset

Print Brief Details of a Spatial Window

Create a Tessellation

Plot a Tessellation

Estimate window from points alone

Print Brief Details of a Line Segment Pattern Dataset

Generate Quasirandom Point Pattern in Given Window

Summary of a Spatial Window

Text, Arrow or Scale Bar in a Diagram

Print a Quadrature Scheme

plot.textstring

Plot a Text String

restrict.colourmap

Restrict a Colour Map to a Subset of Values

pppmatching.object

Class of Point Matchings

Print Progress Reports

Create a Point Matching

Print Brief Details of a Point Pattern Dataset

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Quantile Function

project2segment

Move Point To Nearest Line

Quasirandom Patterns

Convert dataset to another unit of length

Apply Vector Translation To Window

Rotate a Point Pattern

Quantile Function for Images

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Detect Numerical Rounding

Set Covariance of a Window

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Rotate or Shift Infinite Lines

Convert Line Segment Pattern to Another Unit of Length

Find Location of Maximum in a Pixel Image

Quantile Tessellation

Summary of a List of Things

Apply Vector Translation To Point Pattern

run.simplepanel

Run Point-and-Click Interface

spatstat.geom-internal

Internal spatstat.geom functions

rescue.rectangle

Convert Window Back To Rectangle

Divide Multidimensional Point Pattern into Sub-patterns

Print Names and Version Numbers of Libraries Loaded

Simulate systematic random point pattern

scaletointerval

Rescale Data to Lie Between Specified Limits

Quadrat counting for a point pattern

Random Perturbation of a Point Pattern

Apply Numerical Rounding to Spatial Coordinates

Summarizing a Quadrature Scheme

Reorder Levels of a Factor-Valued Image or Pattern

Tessellation Delimited by Several Sets

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Require a Specific Version of a Package

Cartesian Coordinates for a Pixel Raster

Apply Scalar Dilation

Distance Map Using Rectangular Distance Metric

Generate N Uniform Random Points in a Rectangle

List of Two-Dimensional Spatial Objects

Convert Point Pattern to Another Unit of Length

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Explode a Point Pattern by Displacing Duplicated Points

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

Rounding of Pixel Values

spatstat.options

Internal Options in Spatstat Package

summary.anylist

Summary of a List of Things

Convert Window to Another Unit of Length

Summary of a List of Spatial Objects

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Generate grid of parallel lines with random displacement

Approximate a Polygon by a Simpler Polygon

Compute Areas of Tiles in a Tessellation

Map Duplicate Entries to Unique Entries

spatstat.geom-package

The spatstat.geom Package

Name for Unit of Length

Subset of Line Segment Satisfying A Condition

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Cut Line Segments Where They Intersect

Stratified random point pattern

Read Point Pattern From Data File

test.crossing.psp

Check Whether Segments Cross

Plot Image or Tessellation Using Texture Fill

Add Text Labels to Spatial Pattern

Names of Tiles in a Tessellation

Extract List of Tiles in a Tessellation

Apply Vector Translation To Line Segment Pattern

Divide Image Into Sub-images

Subset of Point Pattern Satisfying A Condition

Simple Point-and-Click Interface Panels

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

Union of Data and Dummy Points

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Apply Vector Translation To Pixel Image

Divide Point Pattern into Sub-patterns

summary.distfun

Summarizing a Function of Spatial Location

Summarizing a Pixel Image

Unstack Each Spatial Object in a List of Objects

Check For Empty Tiles in a Tessellation

Graphics Symbol Map

Summary of a Point Pattern Dataset

summary.splitppp

Summary of a Split Point Pattern

Test Which Side of Infinite Line a Point Falls On

transformquantiles

Transform the Quantiles

Superimpose Several Geometric Patterns

Convert Pixel Array Between Different Conventions

Spokes pattern of dummy points

Summary of a Line Segment Pattern Dataset

uniquemap.default

Map Duplicate Entries to Unique Entries

Extract Unique Points from a Spatial Point Pattern

Determine Which Tile Contains Each Given Point

triangulate.owin

Decompose Window into Triangles

update.symbolmap

Update a Graphics Symbol Map.

Vertices of a Window

Volume of an Object

Extract the Total Computation Time

weighted.median

Weighted Median, Quantiles or Variance

Record the Computation Time

Weighted Histogram

Weighted kernel smoother

Separate Multiple Columns of Marks

Cut margins from rectangle

tweak.colourmap

Change Colour Values in a Colour Map