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spatstat.geom (version 3.0-3)

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

64,669

Version

3.0-3

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

October 25th, 2022

Functions in spatstat.geom (3.0-3)

Extract.anylist

Extract or Replace Subset of a List of Things

Extract or Replace Subset of Point Pattern

Extract Subset of Line Segment Pattern

Extract.layered

Extract or Replace Subset of a Layered Object

Extract or Replace Subset of a List of Things

Extract Subset of Window

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Subset of Quadrature Scheme

Extract Subset of Image

Extract Subset of Multidimensional Point Pattern

Extract or Replace Subset of a List of Spatial Objects

Extract.splitppp

Extract or Replace Sub-Patterns

Extract or Replace Subset of Tessellation

Minkowski Sum of Windows

Reset Values in Subset of Image

Extract or Change the Containing Rectangle of a Spatial Object

S3 Group Generic methods for images

Extract or Change the Window of a Spatial Object

Fill Plot With Texture

Extract Window of Spatial Object

Apply Affine Transformation

Apply Affine Transformation To Line Segment Pattern

List of Objects

Apply Affine Transformation To Point Pattern

Check Whether Image Contains NA Values

Apply Affine Transformation To Pixel Image

Apply Affine Transformation To Window

Difference of Disc Areas

S3 Group Generic methods for List of Images

as.data.frame.im

Convert Pixel Image to Data Frame

Area of a Window

Difference of Disc Areas

as.data.frame.owin

Convert Window to Data Frame

Convert Data to Multi-Dimensional Box

Apply Geometrical Transformation To Tessellation

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

Convert to Pixel Image

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

Convert Data to Hyperframe

Convert Data To Layered Object

Convert Data To Class ppp

Convert Data to Three-Dimensional Box

Convert Data To Class psp

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Convert Pixel Image to Matrix or Array

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Distance to Boundary of Window

Orientation Angles of Line Segments

Convert Data To Class owin

Convert Pixel Image to Matrix

Distance to Boundary of Window

Subdivide a Window or Tessellation using a Set of Lines

Convert Data To Tessellation

Interactively Define a Rectangle

Convert a Window to a Polygonal Window

bounding.box.xy

Convex Hull of Points

Bounding Box of a Window, Image, or Point Pattern

Distance to Boundary of Window

Combine Two Line Segment Patterns

as.data.frame.tess

Convert Tessellation to Data Frame

Close Triples of Points

Smallest Enclosing Circle

Colour Lookup Tables

Three-Dimensional Box

Apply Function to Every Neighbourhood in a Point Pattern

as.function.owin

Convert Window to Indicator Function

Extract or Assign Colour Values in a Colour Map

Connected Components of Tiles of a Tessellation

Multi-Dimensional Box

Contour plot of pixel image

as.function.tess

Convert a Tessellation to a Function

Apply Function to Image Broken Down by Factor

Buffer Distance Tessellation

Morphological Closing

Convert Pixel Image to Function of Coordinates

Close Pairs of Points

Apply a Function to a Point Pattern Broken Down by Factor

Pixel Image Approximation of a Window

crossdist.default

Pairwise distances between two different sets of points

Interactively Add Points

Convert List of Two-Dimensional Spatial Objects

Intersect Infinite Straight Lines with a Window

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Generate a Default Pattern of Dummy Points

Convert Line Segment Pattern to Binary Pixel Mask

Close Pairs of Points in 3 Dimensions

complement.owin

Take Complement of a Window

Pairwise distances between two different three-dimensional point patterns

Concatenate x,y Coordinate Vectors

Connected components

Delaunay Triangulation of Point Pattern

Create Colour Scheme for a Range of Numbers

Centroid of a window

Convert and Compare Colours in Different Formats

Border Region of a Window

Convex Hull of Points

Connected Components of a Point Pattern

Cover Region with Discs

Dirichlet Tessellation of Point Pattern

Interactively Measure Distance

Pairwise distances

Interactively Define a Polygon

delaunayDistance

Distance on Delaunay Triangulation

Array of Contour Plots

Determine A Common Spatial Domain And Pixel Resolution

Weil's Convexifying Operation

Test Whether Objects Are Compatible

Compute Areas of Tiles in Dirichlet Tessellation

Pairwise distances between two different point patterns

Distance Metric Defined by Convex Set

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Convert Pixel Image from Numeric to Factor

Circular Window

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Test Whether Pixel Images Are Compatible

Area of Part of Disc

Convolution of Pixel Images

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Corners of a rectangle

Pairwise distances between two different line segment patterns

Crossing Points of Two Line Segment Patterns

Geometrical Calculations for Multi-Dimensional Box

edit.hyperframe

Invoke Text Editor on Hyperframe

Areas of Morphological Dilations

Classify Points in a Point Pattern

Diameter of an Object

Diameter of a Window

Invoke Text Editor on Spatial Data

Morphological Dilation

Distance Map of Window

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Distance Map as a Function

Safely Convert Point Pattern Window to Binary Mask

Distance Map of Point Pattern

Spatial Function Class

Geometrical Calculations for Three-Dimensional Box

Rectangular grid of points

Add margins to rectangle

Make Objects Compatible

Determine Duplicated Points in a Spatial Point Pattern

Identify Segments in a Line Segment Pattern

Distance Map of Line Segment Pattern

Extract the Domain of any Spatial Object

Areas of Morphological Erosions

Morphological Erosion by a Disc

Farthest Distance to Boundary of Window

Create a Pixel Image Object

edges2triangles

List Triangles in a Graph

Extract Boundary Edges of a Window.

Test Whether Points Are Inside A Window

Exchange X and Y Coordinates

List Dihedral Triples in a Graph

Fourier Basis Functions

Check Whether Points Have Close Neighbours

Morphological Erosion of Windows

Elliptical Window.

Integral of a Pixel Image

Test Whether Marks Are Present

framedist.pixels

Distance to Bounding Frame

Test Whether A Point Pattern is Marked

Generate a Row or Column Arrangement of Rectangles.

Hexagonal Grid or Tessellation

Histogram of Values of a Spatial Function

Endpoints of Line Segment Pattern

First or Last Part of a Spatial Pattern

Lengths of Line Segments

Hyper Data Frame

Identify Points in a Point Pattern

Infinite Straight Lines

Test Whether a Window is Convex

Evaluate Expression Involving Pixel Images

Merge Levels of a Factor

Test Whether An Object Is Empty

Weighted Empirical Cumulative Distribution Function

Apply Function Pixelwise to List of Images

Class of Images

Compute Quadrature Weights Based on Grid Counts

Intensity of a Dataset or a Model

Add margins to box in any dimension

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Spatial Covariance of a Pixel Image

Methods for Three-Dimensional Box

Empirical Intensity of Point Pattern

Test whether Object is Multitype

Find Largest Circle Inside Window

is.multitype.ppp

Test Whether A Point Pattern is Multitype

pairdist.default

Pairwise distances

Pairwise distances in Three Dimensions

Test Whether Points Are Inside A Multidimensional Box

methods.unitname

Methods for Units

Intersection, Union or Set Subtraction of Windows

Intersection of Two Tessellations

Perform Geometric Task using a Specified Metric

Make Pixel Images Compatible

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Distance Metric

Quadrature Scheme Based on Pixel Grid

Plot a List of Things

plot.textstring

Plot a Text String

Nearest Neighbours Between Two Patterns

Test Whether An Object Is A Window

plot.texturemap

Plot a Texture Map

Intensity of a Multidimensional Space-Time Point Pattern

Make Windows Compatible

Empirical Intensity of Line Segment Pattern

Print a Quadrature Scheme

Test Whether An Object Is A Point Pattern

Test Whether An Object Is A Linear Network

Print Progress Reports

Create List of Plotting Layers

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

Determine Type of Window

Nearest Neighbours Between Two Patterns in 3D

Number of Points in a Point Pattern

Number of Line Segments in a Line Segment Pattern

Determine Whether an Object is Connected

Histogram of Pixel Values in an Image

is.connected.ppp

Determine Whether a Point Pattern is Connected

Pairwise distances between line segments

Extract or Replace the Plot Arguments of a Layered Object

Marks of a Tessellation

Heat Kernel for a One-Dimensional Rod

Perimeter Length of Window

Test Whether An Object Is A Pixel Image

Determine Whether One Window is Contained In Another

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

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Make Periodic Copies of a Spatial Pattern

Nearest Neighbours Between Two Patterns in Any Dimensions

multiplicity.ppp

Count Multiplicity of Duplicate Points

K-th Nearest Point Map

Nearest neighbour distances

Pairwise distances

Pad the Border of a Pixel Image

Plot a List of Spatial Objects

Plot a List of Point Patterns

Midpoints of Line Segment Pattern

Summarise Marks in Every Neighbourhood in a Point Pattern

Mark of Nearest Neighbour

Print Brief Details of a Spatial Window

Print Brief Details of an Image

Plot a List of Things

Create a Point Matching

Perspective Plot of Pixel Image

Distance Between Two Point Patterns

Plot a Pixel Image

Marks of a Point Pattern

interp.colourmap

Interpolate smoothly between specified colours

Distance for a Point Pattern Matching

Interpolate a Pixel Image

Intersection Of Boxes Of Arbitrary Dimension

Plot a List of Images

Level Set of a Pixel Image

Compute Minimum or Maximum Nearest-Neighbour Distance

Class of Quadrature Schemes

Methods for Spatial Functions

methods.layered

Methods for Layered Objects

Quadrat counting for a point pattern

Plot a Three-Dimensional Point Pattern

Nearest neighbour distances in three dimensions

Nearest Neighbour Distances in Any Dimensions

Nearest neighbour

Marks of a Line Segment Pattern

Nearest neighbours in three dimensions

Mean of Empirical Cumulative Distribution Function

plot a Spatial Point Pattern

Pairwise distances

Tessellation Using Polar Coordinates

Mean and Median of Pixel Values in an Image

Pairwise Distances in Any Dimensions

Methods for Multi-Dimensional Box

Cartesian Coordinates for a Pixel Raster

Three Dimensional Point Pattern

nearest.raster.point

Find Pixel Nearest to a Given Point

Draw Points or Lines on a Surface Viewed in Perspective

Print Brief Details of a Point Pattern Dataset

Distance Map Using Rectangular Distance Metric

methods.distfun

Geometrical Operations for Distance Functions

Image of Nearest Defined Pixel Value

Methods for three-dimensional point patterns

Nearest neighbour distances between line segments

Methods for Multidimensional Space-Time Point Patterns

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Nearest Neighbour Index Map as a Function

Nearest Neighbours in Any Dimensions

Extract Pixel Centres as Point Pattern

Find Line Segment Nearest to Each Point

Plot a Colour Map

Count Number of Vertices

Print Brief Details of a Line Segment Pattern Dataset

Quantile Tessellation

Count Number of Geometrical Objects in a Spatial Dataset

plot.hyperframe

Plot Entries in a Hyperframe

Rotate a Pixel Image

Compute Area of Overlap

plot.pppmatching

Plot a Point Matching

Convert dataset to another unit of length

Morphological Opening

Create a Window

Convert Pixel Image to Another Unit of Length

plot a Spatial Line Segment Pattern

Quantiles of Weighted Empirical Cumulative Distribution Function

Rotate or Shift Infinite Lines

Rotate a Window

project2segment

Move Point To Nearest Line

Find Nearest Point in a Region

Convert Window to Another Unit of Length

Convert Window to Binary Mask under Constraints

Sample Quantiles of Pixel Image

Convert Point Pattern to Another Unit of Length

Convert Point Pattern to Pixel Image

Convert Spatial Object to Pixel Image

Rotate a Point Pattern

Rotate a Line Segment Pattern

Convert Window to Pixel Image

Apply Vector Translation To Window

scaletointerval

Rescale Data to Lie Between Specified Limits

Apply Vector Translation To Point Pattern

Create a Line Segment Pattern

Convert Line Segment Pattern to Pixel Image

Plot a Spatial Window

Class of Line Segment Patterns

Plot a Spatial Quadrature Scheme

plot.quadratcount

Plot Quadrat Counts

Read Point Pattern From Data File

Plot a Graphics Symbol Map

Plot a Tessellation

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Apply Vector Translation To Line Segment Pattern

Create a Point Pattern

Class of Point Patterns

Quasirandom Patterns

Plot a Yardstick or Scale Bar

Generate Quasirandom Point Pattern in Given Window

Approximate a Polygon by a Simpler Polygon

Place Points Evenly Along Specified Lines

Reflect In Origin

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

Random Perturbation of a Point Pattern

Create A Regular Polygon

pppmatching.object

Class of Point Matchings

Multidimensional Space-Time Point Pattern

spatstat.options

Internal Options in Spatstat Package

Convert Line Segment Pattern to Another Unit of Length

Generate grid of parallel lines with random displacement

rescue.rectangle

Convert Window Back To Rectangle

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Reorder Levels of a Factor-Valued Image or Pattern

Apply Numerical Rounding to Spatial Coordinates

Detect Numerical Rounding

Require a Specific Version of a Package

Apply Vector Translation

Apply Vector Translation To Pixel Image

Divide Region into Quadrats

Generate a Quadrature Scheme from a Point Pattern

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Simulate systematic random point pattern

run.simplepanel

Run Point-and-Click Interface

Convert Pixel Array Between Different Conventions

triangulate.owin

Decompose Window into Triangles

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Cut Line Segments Where They Intersect

List of Two-Dimensional Spatial Objects

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

Create Colour-Valued Pixel Image

Divide Image Into Sub-images

Divide Point Pattern into Sub-patterns

Estimate window from points alone

Subset of Point Pattern Satisfying A Condition

Spatial Dimension of a Dataset

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Generate N Uniform Random Points in a Rectangle

Apply Scalar Dilation

Find Location of Maximum in a Pixel Image

Determine Which Tile Contains Each Given Point

Print Names and Version Numbers of Libraries Loaded

Test Which Side of Infinite Line a Point Falls On

uniquemap.default

Map Duplicate Entries to Unique Entries

Divide Multidimensional Point Pattern into Sub-patterns

Plot Image or Tessellation Using Texture Fill

Set Covariance of a Window

Summary of a List of Things

Stratified random point pattern

Compute Areas of Tiles in a Tessellation

Summary of a Spatial Window

Summary of a Point Pattern Dataset

Spokes pattern of dummy points

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Simple Point-and-Click Interface Panels

Summary of a Line Segment Pattern Dataset

summary.splitppp

Summary of a Split Point Pattern

Record the Computation Time

Superimpose Several Geometric Patterns

Union of Data and Dummy Points

Subset of Line Segment Satisfying A Condition

test.crossing.psp

Check Whether Segments Cross

summary.anylist

Summary of a List of Things

Add Text Labels to Spatial Pattern

spatstat.geom-internal

Internal spatstat.geom functions

spatstat.geom-package

The spatstat.geom Package

transformquantiles

Transform the Quantiles

Map Duplicate Entries to Unique Entries

Extract Unique Points from a Spatial Point Pattern

Check For Empty Tiles in a Tessellation

Graphics Symbol Map

update.symbolmap

Update a Graphics Symbol Map.

Separate Multiple Columns of Marks

summary.distfun

Summarizing a Function of Spatial Location

Unstack Each Spatial Object in a List of Objects

Create a Tessellation

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Vertices of a Window

Summarizing a Pixel Image

Extract the Total Computation Time

Weighted kernel smoother

Text, Arrow or Scale Bar in a Diagram

Cut margins from rectangle

tweak.colourmap

Change Colour Values in a Colour Map

Tessellation Delimited by Several Sets

Weighted Histogram

Rounding of Pixel Values

Summarizing a Quadrature Scheme

Summary of a List of Spatial Objects

Names of Tiles in a Tessellation

Extract List of Tiles in a Tessellation

Name for Unit of Length

Volume of an Object

weighted.median

Weighted Median, Quantiles or Variance