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spatstat.geom (version 3.2-9)

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

3.2-9

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

February 28th, 2024

Functions in spatstat.geom (3.2-9)

Extract Subset of Line Segment Pattern

Extract or Replace Subset of a List of Things

S3 Group Generic methods for List of Images

Minkowski Sum of Windows

Extract Subset of Window

Subset of Quadrature Scheme

Reset Values in Subset of Image

List of Objects

Apply Geometrical Transformation To Tessellation

Extract or Replace Subset of Point Pattern

Apply Affine Transformation To Pixel Image

Apply Affine Transformation To Window

S3 Group Generic methods for images

Convert Pixel Image to Matrix

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Convert Data To Class ppp

Colour Lookup Tables

Extract Subset of Image

Orientation Angles of Line Segments

Extract or Change the Containing Rectangle of a Spatial Object

Extract.anylist

Extract or Replace Subset of a List of Things

Extract Subset of Multidimensional Point Pattern

as.data.frame.tess

Convert Tessellation to Data Frame

Fill Plot With Texture

Combine Two Line Segment Patterns

Apply Function to Every Neighbourhood in a Point Pattern

Extract or Replace Subset of Tessellation

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Apply Affine Transformation

Area of a Window

Close Pairs of Points in 3 Dimensions

as.function.tess

Convert a Tessellation to a Function

Convert Data To Class owin

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

Convert a Window to a Polygonal Window

Distance Metric Defined by Convex Set

Extract.layered

Extract or Replace Subset of a Layered Object

Cover Region with Discs

as.data.frame.im

Convert Pixel Image to Data Frame

Convert to Colour Map

Apply Affine Transformation To Point Pattern

Distance to Boundary of Window

Distance to Boundary of Window

Convert Data to Hyperframe

Convert List of Two-Dimensional Spatial Objects

Extract or Replace Subset of a List of Spatial Objects

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Smallest Enclosing Circle

Interactively Measure Distance

Three-Dimensional Box

Difference of Disc Areas

Extract or Change the Window of a Spatial Object

Centroid of a window

Extract Window of Spatial Object

Close Pairs of Points

Close Triples of Points

Apply Affine Transformation To Line Segment Pattern

Extract.splitppp

Extract or Replace Sub-Patterns

delaunayDistance

Distance on Delaunay Triangulation

Interactively Define a Polygon

Check Whether Image Contains NA Values

Convert Data to Three-Dimensional Box

Morphological Closing

Morphological Dilation

Geometrical Calculations for Multi-Dimensional Box

Interactively Add Points

Intersect Infinite Straight Lines with a Window

as.data.frame.owin

Convert Window to Data Frame

Extract or Assign Colour Values in a Colour Map

Convert Pixel Image to Function of Coordinates

Create Colour Scheme for a Range of Numbers

Difference of Disc Areas

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Connected components

Multi-Dimensional Box

crossdist.default

Pairwise distances between two different sets of points

Convert Data to Multi-Dimensional Box

Pairwise distances between two different three-dimensional point patterns

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

Convert to Pixel Image

Pairwise distances between two different line segment patterns

Array of Contour Plots

Convert Pixel Image from Numeric to Factor

Test Whether Objects Are Compatible

bounding.box.xy

Convex Hull of Points

Border Region of a Window

Intensity of a Multidimensional Space-Time Point Pattern

Convert Data To Class psp

as.function.owin

Convert Window to Indicator Function

Classify Points in a Point Pattern

Diameter of a Window

Convert Pixel Image to Matrix or Array

Pixel Image Approximation of a Window

Connected Components of a Point Pattern

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Contour plot of pixel image

Weighted Empirical Cumulative Distribution Function

Convex Hull of Points

Corners of a rectangle

Convert Data To Layered Object

Bounding Box of a Window, Image, or Point Pattern

Convert Data To Tessellation

Apply Function to Image Broken Down by Factor

Distance Map of Window

Distance to Boundary of Window

Diameter of an Object

Pairwise distances between two different point patterns

Geometrical Calculations for Three-Dimensional Box

Integral of a Function or Spatial Object

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Determine A Common Spatial Domain And Pixel Resolution

Compute Areas of Tiles in Dirichlet Tessellation

Circular Window

Extract the Domain of any Spatial Object

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Spatial Function Class

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Buffer Distance Tessellation

Area of Part of Disc

edges2triangles

List Triangles in a Graph

Apply a Function to a Point Pattern Broken Down by Factor

edit.hyperframe

Invoke Text Editor on Hyperframe

Colour Map for pH Values

Convert and Compare Colours in Different Formats

Pairwise distances

List Dihedral Triples in a Graph

Subdivide a Window or Tessellation using a Set of Lines

Farthest Distance to Boundary of Window

Invoke Text Editor on Spatial Data

Make Pixel Images Compatible

Interactively Define a Rectangle

Test Whether Points Are Inside A Multidimensional Box

Connected Components of Tiles of a Tessellation

Convolution of Pixel Images

Distance Map as a Function

Test Whether A Point Pattern is Marked

Crossing Points of Two Line Segment Patterns

Make Windows Compatible

Evaluate Expression Involving Pixel Images

Exchange X and Y Coordinates

Find Largest Circle Inside Window

Areas of Morphological Dilations

Infinite Straight Lines

complement.owin

Take Complement of a Window

Endpoints of Line Segment Pattern

Histogram of Values of a Spatial Function

Morphological Erosion of Windows

Create a Pixel Image Object

First or Last Part of a Spatial Pattern

Determine Duplicated Points in a Spatial Point Pattern

Add margins to rectangle

Distance Map of Line Segment Pattern

Pad the Border of a Pixel Image

Multidimensional Space-Time Point Pattern

Convert Line Segment Pattern to Pixel Image

Hexagonal Grid or Tessellation

Concatenate x,y Coordinate Vectors

Elliptical Window.

Determine Whether an Object is Connected

Identify Points in a Point Pattern

Apply Function Pixelwise to List of Images

Intersection Of Boxes Of Arbitrary Dimension

Integral of a Pixel Image

Mean of Empirical Cumulative Distribution Function

Intersection, Union or Set Subtraction of Windows

Mean and Median of Pixel Values in an Image

Identify Segments in a Line Segment Pattern

is.multitype.ppp

Test Whether A Point Pattern is Multitype

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

Intensity of a Dataset or a Model

Test Whether An Object Is A Linear Network

nearest.raster.point

Find Pixel Nearest to a Given Point

Test whether Object is Multitype

Compute Minimum or Maximum Nearest-Neighbour Distance

harmoniseLevels

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

Rectangular grid of points

Image of Nearest Defined Pixel Value

Distance Map of Point Pattern

Test Whether An Object Is A Pixel Image

is.connected.ppp

Determine Whether a Point Pattern is Connected

Test Whether Points Are Inside A Window

K-th Nearest Point Map

Class of Images

Spatial Covariance of a Pixel Image

Intersection of Two Tessellations

Extract Boundary Edges of a Window.

Test Whether Pixel Images Are Compatible

Compute Quadrature Weights Based on Grid Counts

Pairwise distances in Three Dimensions

Plot a List of Spatial Objects

Mark of Nearest Neighbour

Histogram of Pixel Values in an Image

Summarizing a Quadrature Scheme

Check Whether Points Have Close Neighbours

Safely Convert Point Pattern Window to Binary Mask

Methods for Multi-Dimensional Box

Marks of a Point Pattern

Add margins to box in any dimension

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Create a Line Segment Pattern

Methods for Spatial Functions

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Nearest Neighbour Index Map as a Function

Test Whether An Object Is A Window

integral.density

Compute Integral of One-Dimensional Kernel Density Estimate.

Generate a Row or Column Arrangement of Rectangles.

Marks of a Line Segment Pattern

Recognise a Multi-Dimensional Box

Compute Area of Overlap

Check For Empty Tiles in a Tessellation

Perform Geometric Task using a Specified Metric

Test Whether a Window is Convex

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

methods.distfun

Geometrical Operations for Distance Functions

Lengths of Line Segments

Create a Window

Find Line Segment Nearest to Each Point

Weil's Convexifying Operation

Interpolate a Pixel Image

Generate a Default Pattern of Dummy Points

Marks of a Tessellation

Perspective Plot of Pixel Image

Draw Points or Lines on a Surface Viewed in Perspective

Empirical Intensity of Line Segment Pattern

Determine Type of Window

Level Set of a Pixel Image

Determine Whether One Window is Contained In Another

Plot a Spatial Window

Methods for three-dimensional point patterns

Apply Vector Translation To Line Segment Pattern

Delaunay Triangulation of Point Pattern

Dirichlet Tessellation of Point Pattern

Summarise Marks in Every Neighbourhood in a Point Pattern

Methods for Multidimensional Space-Time Point Patterns

Nearest Neighbours Between Two Patterns

Nearest neighbour distances between line segments

Plot a Three-Dimensional Point Pattern

Areas of Morphological Erosions

Distance Metric

Test Whether An Object Is Empty

Plot a Tessellation

Pairwise distances

Make Objects Compatible

Convert Window to Pixel Image

Empirical Intensity of Point Pattern

methods.layered

Methods for Layered Objects

Nearest Neighbours Between Two Patterns in 3D

Nearest neighbour distances in three dimensions

Nearest Neighbours Between Two Patterns in Any Dimensions

Plot a List of Point Patterns

Morphological Erosion by a Disc

Nearest neighbour distances

Plot a Graphics Symbol Map

Create a Point Matching

Nearest Neighbour Distances in Any Dimensions

Test Whether An Object Is A Point Pattern

Heat Kernel for a One-Dimensional Rod

Determine Which Tile Contains Each Given Point

Cut Line Segments Where They Intersect

pppmatching.object

Class of Point Matchings

Fourier Basis Functions

plot.textstring

Plot a Text String

Convert dataset to another unit of length

methods.unitname

Methods for Units

Plot a List of Things

Convert Pixel Image to Another Unit of Length

Convert Pixel Array Between Different Conventions

Simulate systematic random point pattern

pairdist.default

Pairwise distances

Midpoints of Line Segment Pattern

multiplicity.ppp

Count Multiplicity of Duplicate Points

Pairwise distances

run.simplepanel

Run Point-and-Click Interface

Apply Vector Translation

framedist.pixels

Distance to Bounding Frame

Apply Vector Translation To Pixel Image

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Count Number of Vertices

Convert Point Pattern to Pixel Image

Nearest neighbour

Number of Points in a Point Pattern

Perimeter Length of Window

Hyper Data Frame

List of Two-Dimensional Spatial Objects

Morphological Opening

interp.colourmap

Interpolate smoothly between specified colours

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

Methods for Three-Dimensional Box

Stratified random point pattern

Subset of Line Segment Satisfying A Condition

Tessellation Using Polar Coordinates

Generate a Quadrature Scheme from a Point Pattern

Print Brief Details of a Line Segment Pattern Dataset

Find Nearest Point in a Region

Extract or Replace the Plot Arguments of a Layered Object

Number of Line Segments in a Line Segment Pattern

summary.anylist

Summary of a List of Things

plot.pppmatching

Plot a Point Matching

Plot a Yardstick or Scale Bar

Test Whether Marks Are Present

Nearest neighbours in three dimensions

plot.hyperframe

Plot Entries in a Hyperframe

Pairwise Distances in Any Dimensions

Class of Quadrature Schemes

Pairwise distances between line segments

Generate Quasirandom Point Pattern in Given Window

Convert Window to Binary Mask under Constraints

Make Periodic Copies of a Spatial Pattern

plot a Spatial Point Pattern

Extract Pixel Centres as Point Pattern

Quasirandom Patterns

restrict.colourmap

Restrict a Colour Map to a Subset of Values

Summary of a List of Things

Quadrature Scheme Based on Pixel Grid

plot.quadratcount

Plot Quadrat Counts

Plot Image or Tessellation Using Texture Fill

Print a Quadrature Scheme

Union of Data and Dummy Points

Extract the Total Computation Time

Reorder Levels of a Factor-Valued Image or Pattern

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Explode a Point Pattern by Displacing Duplicated Points

Plot a Pixel Image

Extract Unique Points from a Spatial Point Pattern

Unstack Each Spatial Object in a List of Objects

Require a Specific Version of a Package

Convert Spatial Object to Pixel Image

update.symbolmap

Update a Graphics Symbol Map.

Place Points Evenly Along Specified Lines

Plot a List of Images

Rotate a Pixel Image

Divide Point Pattern into Sub-patterns

spatstat.geom-internal

Internal spatstat.geom functions

Create Colour-Valued Pixel Image

Class of Point Patterns

Estimate window from points alone

Distance Between Two Point Patterns

Class of Line Segment Patterns

Print Brief Details of an Image

Rotate a Point Pattern

Rotate a Line Segment Pattern

Rotate or Shift Infinite Lines

Summary of a Line Segment Pattern Dataset

Weighted kernel smoother

Divide Region into Quadrats

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Nearest Neighbours in Any Dimensions

Merge Levels of a Factor

Print Brief Details of a Spatial Window

Graphics Symbol Map

Quantile Tessellation

Apply Vector Translation To Point Pattern

Divide Image Into Sub-images

Apply Vector Translation To Window

Quantiles of Weighted Empirical Cumulative Distribution Function

Create List of Plotting Layers

Sample Quantiles of Pixel Image

Print Brief Details of a Point Pattern Dataset

Summary of a Point Pattern Dataset

Convert Line Segment Pattern to Binary Pixel Mask

Approximate a Polygon by a Simpler Polygon

Quadrat counting for a point pattern

Quantile Function

Distance for a Point Pattern Matching

Compute Areas of Tiles in a Tessellation

Weighted Histogram

Summary of a List of Spatial Objects

Tessellation Delimited by Several Sets

Separate Multiple Columns of Marks

Quantile Function for Images

Vertices of a Window

Three Dimensional Point Pattern

Convert Window to Another Unit of Length

spatstat.geom-package

The spatstat.geom Package

Count Number of Geometrical Objects in a Spatial Dataset

Convert Point Pattern to Another Unit of Length

Plot a List of Things

Distance Map Using Rectangular Distance Metric

Cut margins from rectangle

plot a Spatial Line Segment Pattern

Reflect In Origin

Cartesian Coordinates for a Pixel Raster

Random Perturbation of a Point Pattern

Generate grid of parallel lines with random displacement

Generate N Uniform Random Points in a Rectangle

Create a Tessellation

Rotate a Window

plot.texturemap

Plot a Texture Map

tweak.colourmap

Change Colour Values in a Colour Map

Apply Scalar Dilation

Volume of an Object

Plot a Colour Map

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Plot a Spatial Quadrature Scheme

scaletointerval

Rescale Data to Lie Between Specified Limits

Print Progress Reports

project2segment

Move Point To Nearest Line

weighted.median

Weighted Median, Quantiles or Variance

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

Summary of a Spatial Window

Record the Computation Time

Create a Point Pattern

transformquantiles

Transform the Quantiles

uniquemap.default

Map Duplicate Entries to Unique Entries

spatstat.options

Internal Options in Spatstat Package

Read Point Pattern From Data File

Create A Regular Polygon

Map Duplicate Entries to Unique Entries

Spatial Dimension of a Dataset

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Divide Multidimensional Point Pattern into Sub-patterns

Spokes pattern of dummy points

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Convert Line Segment Pattern to Another Unit of Length

Subset of Point Pattern Satisfying A Condition

Simple Point-and-Click Interface Panels

test.crossing.psp

Check Whether Segments Cross

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Set Covariance of a Window

Apply Numerical Rounding to Spatial Coordinates

Add Text Labels to Spatial Pattern

Names of Tiles in a Tessellation

Extract List of Tiles in a Tessellation

Name for Unit of Length

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

rescue.rectangle

Convert Window Back To Rectangle

Detect Numerical Rounding

Print Names and Version Numbers of Libraries Loaded

triangulate.owin

Decompose Window into Triangles

Find Location of Maximum in a Pixel Image

summary.distfun

Summarizing a Function of Spatial Location

Superimpose Several Geometric Patterns

summary.splitppp

Summary of a Split Point Pattern

Summarizing a Pixel Image

Test Which Side of Infinite Line a Point Falls On

Text, Arrow or Scale Bar in a Diagram

Rounding of Pixel Values