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spatstat.geom (version 3.2-2)

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

73,410

Version

3.2-2

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

July 6th, 2023

Functions in spatstat.geom (3.2-2)

Extract Subset of Line Segment Pattern

Extract Subset of Image

Extract.anylist

Extract or Replace Subset of a List of Things

Subset of Quadrature Scheme

Extract or Replace Subset of Point Pattern

Extract or Replace Subset of a List of Things

Extract Subset of Window

Extract or Change the Window of a Spatial Object

Extract.layered

Extract or Replace Subset of a Layered Object

Extract or Replace Subset of Tessellation

Extract or Replace Subset of a List of Spatial Objects

Extract Subset of Multidimensional Point Pattern

Extract or Change the Containing Rectangle of a Spatial Object

Extract Window of Spatial Object

S3 Group Generic methods for images

S3 Group Generic methods for List of Images

Extract.splitppp

Extract or Replace Sub-Patterns

Apply Geometrical Transformation To Tessellation

Orientation Angles of Line Segments

Apply Affine Transformation To Pixel Image

Convert Data to Multi-Dimensional Box

Convert to Pixel Image

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Minkowski Sum of Windows

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Combine Two Line Segment Patterns

Apply Affine Transformation To Point Pattern

Apply Affine Transformation To Window

Convert to Colour Map

Area of a Window

Convert Data to Three-Dimensional Box

as.data.frame.owin

Convert Window to Data Frame

Centroid of a window

Convert List of Two-Dimensional Spatial Objects

Reset Values in Subset of Image

Convert Data To Class ppp

Test Whether Objects Are Compatible

Apply Affine Transformation To Line Segment Pattern

Connected components

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

List of Objects

Convert Data To Class owin

Difference of Disc Areas

Apply Function to Every Neighbourhood in a Point Pattern

Border Region of a Window

bounding.box.xy

Convex Hull of Points

as.function.tess

Convert a Tessellation to a Function

Convert Pixel Image to Function of Coordinates

Convert Pixel Image to Matrix or Array

Distance to Boundary of Window

as.function.owin

Convert Window to Indicator Function

Delaunay Triangulation of Point Pattern

Distance to Boundary of Window

Convert Pixel Image to Matrix

Convert Data to Hyperframe

Convert Data To Layered Object

crossdist.default

Pairwise distances between two different sets of points

Determine A Common Spatial Domain And Pixel Resolution

Convert a Window to a Polygonal Window

Morphological Erosion of Windows

Interactively Measure Distance

Fill Plot With Texture

Convert and Compare Colours in Different Formats

Apply Affine Transformation

complement.owin

Take Complement of a Window

Check Whether Image Contains NA Values

Interactively Define a Polygon

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Convert Data To Tessellation

Compute Areas of Tiles in Dirichlet Tessellation

Extract or Assign Colour Values in a Colour Map

Bounding Box of a Window, Image, or Point Pattern

Diameter of an Object

Difference of Disc Areas

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

Pixel Image Approximation of a Window

as.data.frame.im

Convert Pixel Image to Data Frame

Apply Function to Image Broken Down by Factor

Pairwise distances between two different three-dimensional point patterns

Convex Hull of Points

Morphological Closing

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Distance to Boundary of Window

as.data.frame.tess

Convert Tessellation to Data Frame

Array of Contour Plots

Concatenate x,y Coordinate Vectors

Corners of a rectangle

Colour Lookup Tables

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Close Pairs of Points in 3 Dimensions

Interactively Define a Rectangle

Close Triples of Points

Create Colour Scheme for a Range of Numbers

delaunayDistance

Distance on Delaunay Triangulation

Apply a Function to a Point Pattern Broken Down by Factor

Test Whether Pixel Images Are Compatible

Multi-Dimensional Box

Test Whether An Object Is A Window

Pairwise distances between two different point patterns

Buffer Distance Tessellation

Area of Part of Disc

framedist.pixels

Distance to Bounding Frame

Test Whether Points Are Inside A Window

Class of Images

Smallest Enclosing Circle

Generate a Default Pattern of Dummy Points

Areas of Morphological Dilations

Distance Map of Window

Nearest Neighbours Between Two Patterns in 3D

is.connected.ppp

Determine Whether a Point Pattern is Connected

Geometrical Calculations for Three-Dimensional Box

Connected Components of Tiles of a Tessellation

Circular Window

Convert Data To Class psp

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Safely Convert Point Pattern Window to Binary Mask

Contour plot of pixel image

Diameter of a Window

Close Pairs of Points

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

Test Whether A Point Pattern is Marked

Pairwise distances between two different line segment patterns

Determine Duplicated Points in a Spatial Point Pattern

Convolution of Pixel Images

Farthest Distance to Boundary of Window

Dirichlet Tessellation of Point Pattern

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

Subdivide a Window or Tessellation using a Set of Lines

Three-Dimensional Box

Connected Components of a Point Pattern

Distance Metric Defined by Convex Set

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Rectangular grid of points

Hexagonal Grid or Tessellation

Interactively Add Points

Morphological Dilation

List Dihedral Triples in a Graph

First or Last Part of a Spatial Pattern

Weil's Convexifying Operation

Crossing Points of Two Line Segment Patterns

Make Pixel Images Compatible

Areas of Morphological Erosions

Spatial Function Class

Intersect Infinite Straight Lines with a Window

Distance Map as a Function

Plot a Three-Dimensional Point Pattern

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Distance Map of Point Pattern

Fourier Basis Functions

Marks of a Line Segment Pattern

Create a Window

Evaluate Expression Involving Pixel Images

Cover Region with Discs

edit.hyperframe

Invoke Text Editor on Hyperframe

Elliptical Window.

Intersection of Two Tessellations

harmoniseLevels

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

Morphological Erosion by a Disc

Find Largest Circle Inside Window

Distance Map of Line Segment Pattern

Interpolate a Pixel Image

Endpoints of Line Segment Pattern

methods.layered

Methods for Layered Objects

Methods for three-dimensional point patterns

Extract the Domain of any Spatial Object

Pairwise distances

Intensity of a Multidimensional Space-Time Point Pattern

Spatial Covariance of a Pixel Image

Create Colour-Valued Pixel Image

Convert Pixel Image from Numeric to Factor

Determine Whether an Object is Connected

Create a Pixel Image Object

Invoke Text Editor on Spatial Data

Heat Kernel for a One-Dimensional Rod

Empirical Intensity of Line Segment Pattern

Classify Points in a Point Pattern

Check Whether Points Have Close Neighbours

scaletointerval

Rescale Data to Lie Between Specified Limits

Test Whether a Window is Convex

Identify Segments in a Line Segment Pattern

Exchange X and Y Coordinates

Geometrical Calculations for Multi-Dimensional Box

Distance for a Point Pattern Matching

Intensity of a Dataset or a Model

K-th Nearest Point Map

Recognise a Multi-Dimensional Box

edges2triangles

List Triangles in a Graph

Plot a List of Spatial Objects

Level Set of a Pixel Image

Test Whether An Object Is A Linear Network

Add margins to rectangle

Weighted Empirical Cumulative Distribution Function

Extract Boundary Edges of a Window.

Morphological Opening

Convert Point Pattern to Another Unit of Length

Empirical Intensity of Point Pattern

multiplicity.ppp

Count Multiplicity of Duplicate Points

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Mean and Median of Pixel Values in an Image

methods.distfun

Geometrical Operations for Distance Functions

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Apply Function Pixelwise to List of Images

Compute Quadrature Weights Based on Grid Counts

Test Whether Points Are Inside A Multidimensional Box

Create List of Plotting Layers

Methods for Multidimensional Space-Time Point Patterns

Make Objects Compatible

Make Windows Compatible

Methods for Multi-Dimensional Box

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Histogram of Values of a Spatial Function

Identify Points in a Point Pattern

Histogram of Pixel Values in an Image

Add margins to box in any dimension

Hyper Data Frame

Lengths of Line Segments

Find Line Segment Nearest to Each Point

Determine Whether One Window is Contained In Another

Image of Nearest Defined Pixel Value

Nearest neighbours in three dimensions

Plot a Spatial Window

Intersection, Union or Set Subtraction of Windows

Marks of a Point Pattern

Test whether Object is Multitype

Plot a Yardstick or Scale Bar

Number of Line Segments in a Line Segment Pattern

Make Periodic Copies of a Spatial Pattern

Convert Spatial Object to Pixel Image

interp.colourmap

Interpolate smoothly between specified colours

Extract or Replace the Plot Arguments of a Layered Object

Intersection Of Boxes Of Arbitrary Dimension

Perspective Plot of Pixel Image

Nearest Neighbours in Any Dimensions

Print a Quadrature Scheme

Distance Map Using Rectangular Distance Metric

Plot a List of Things

restrict.colourmap

Restrict a Colour Map to a Subset of Values

Convert Window to Pixel Image

pppmatching.object

Class of Point Matchings

Count Number of Vertices

Summarizing a Pixel Image

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

integral.density

Compute Integral of One-Dimensional Kernel Density Estimate.

Read Point Pattern From Data File

Test Whether Marks Are Present

plot.hyperframe

Plot Entries in a Hyperframe

Infinite Straight Lines

Integral of a Pixel Image

Plot a Pixel Image

summary.splitppp

Summary of a Split Point Pattern

Perform Geometric Task using a Specified Metric

Compute Minimum or Maximum Nearest-Neighbour Distance

Create a Point Pattern

methods.unitname

Methods for Units

Plot a Spatial Quadrature Scheme

Merge Levels of a Factor

Generate a Row or Column Arrangement of Rectangles.

Methods for Three-Dimensional Box

Test Whether An Object Is A Pixel Image

Test Whether An Object Is A Point Pattern

Determine Type of Window

Plot a Colour Map

Test Whether An Object Is Empty

nearest.raster.point

Find Pixel Nearest to a Given Point

Plot a List of Point Patterns

Tessellation Using Polar Coordinates

Nearest neighbour distances between line segments

Print Progress Reports

Summarise Marks in Every Neighbourhood in a Point Pattern

Multidimensional Space-Time Point Pattern

Apply Vector Translation

Marks of a Tessellation

Create a Line Segment Pattern

Midpoints of Line Segment Pattern

Mark of Nearest Neighbour

Divide Region into Quadrats

plot.textstring

Plot a Text String

test.crossing.psp

Check Whether Segments Cross

Colour Map for pH Values

Count Number of Geometrical Objects in a Spatial Dataset

Find Nearest Point in a Region

Cartesian Coordinates for a Pixel Raster

Create a Point Matching

Pairwise distances between line segments

Convert Window to Another Unit of Length

Weighted kernel smoother

Perimeter Length of Window

Distance Metric

plot.texturemap

Plot a Texture Map

Nearest Neighbour Index Map as a Function

Pairwise distances in Three Dimensions

run.simplepanel

Run Point-and-Click Interface

Nearest Neighbours Between Two Patterns in Any Dimensions

Quadrature Scheme Based on Pixel Grid

Nearest neighbour

Mean of Empirical Cumulative Distribution Function

plot a Spatial Line Segment Pattern

plot.pppmatching

Plot a Point Matching

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

transformquantiles

Transform the Quantiles

Print Brief Details of a Spatial Window

Print Brief Details of an Image

Spatial Dimension of a Dataset

Pairwise distances

Convert Line Segment Pattern to Binary Pixel Mask

Unstack Each Spatial Object in a List of Objects

Apply Vector Translation To Pixel Image

pairdist.default

Pairwise distances

Methods for Spatial Functions

Nearest neighbour distances

Plot a List of Things

Nearest neighbour distances in three dimensions

Nearest Neighbour Distances in Any Dimensions

Compute Areas of Tiles in a Tessellation

Nearest Neighbours Between Two Patterns

Pairwise Distances in Any Dimensions

Compute Area of Overlap

project2segment

Move Point To Nearest Line

Class of Point Patterns

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

List of Two-Dimensional Spatial Objects

Reflect In Origin

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Quasirandom Patterns

Detect Numerical Rounding

Class of Quadrature Schemes

Number of Points in a Point Pattern

Quantiles of Weighted Empirical Cumulative Distribution Function

Pad the Border of a Pixel Image

Convert Window to Binary Mask under Constraints

Print Names and Version Numbers of Libraries Loaded

Convert Line Segment Pattern to Pixel Image

Rotate a Point Pattern

Explode a Point Pattern by Displacing Duplicated Points

Extract Pixel Centres as Point Pattern

Three Dimensional Point Pattern

Convert Point Pattern to Pixel Image

Pairwise distances

Generate Quasirandom Point Pattern in Given Window

Graphics Symbol Map

Estimate window from points alone

Quadrat counting for a point pattern

Print Brief Details of a Point Pattern Dataset

Generate a Quadrature Scheme from a Point Pattern

Plot a Graphics Symbol Map

Plot a List of Images

plot a Spatial Point Pattern

Plot a Tessellation

Draw Points or Lines on a Surface Viewed in Perspective

Rotate or Shift Infinite Lines

Convert Line Segment Pattern to Another Unit of Length

Rotate a Pixel Image

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

Rotate a Line Segment Pattern

Convert dataset to another unit of length

plot.quadratcount

Plot Quadrat Counts

Rotate a Window

Set Covariance of a Window

rescue.rectangle

Convert Window Back To Rectangle

Distance Between Two Point Patterns

Rounding of Pixel Values

Sample Quantiles of Pixel Image

Cut Line Segments Where They Intersect

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Place Points Evenly Along Specified Lines

Record the Computation Time

Random Perturbation of a Point Pattern

Reorder Levels of a Factor-Valued Image or Pattern

Create A Regular Polygon

Map Duplicate Entries to Unique Entries

Quantile Function

Quantile Tessellation

Apply Numerical Rounding to Spatial Coordinates

Add Text Labels to Spatial Pattern

Simulate systematic random point pattern

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Divide Multidimensional Point Pattern into Sub-patterns

Require a Specific Version of a Package

spatstat.options

Internal Options in Spatstat Package

Summary of a Line Segment Pattern Dataset

Generate grid of parallel lines with random displacement

Apply Vector Translation To Window

Spokes pattern of dummy points

Weighted Histogram

Print Brief Details of a Line Segment Pattern Dataset

Extract List of Tiles in a Tessellation

Generate N Uniform Random Points in a Rectangle

Class of Line Segment Patterns

Summary of a List of Things

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Apply Scalar Dilation

Summary of a Point Pattern Dataset

tweak.colourmap

Change Colour Values in a Colour Map

Determine Which Tile Contains Each Given Point

Apply Vector Translation To Point Pattern

Cut margins from rectangle

summary.distfun

Summarizing a Function of Spatial Location

Test Which Side of Infinite Line a Point Falls On

Apply Vector Translation To Line Segment Pattern

Convert Pixel Array Between Different Conventions

Create a Tessellation

Stratified random point pattern

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Simple Point-and-Click Interface Panels

Summarizing a Quadrature Scheme

Find Location of Maximum in a Pixel Image

Subset of Line Segment Satisfying A Condition

Union of Data and Dummy Points

Extract Unique Points from a Spatial Point Pattern

summary.anylist

Summary of a List of Things

Plot Image or Tessellation Using Texture Fill

Convert Pixel Image to Another Unit of Length

Name for Unit of Length

triangulate.owin

Decompose Window into Triangles

Check For Empty Tiles in a Tessellation

Subset of Point Pattern Satisfying A Condition

spatstat.geom-internal

Internal spatstat.geom functions

Superimpose Several Geometric Patterns

update.symbolmap

Update a Graphics Symbol Map.

uniquemap.default

Map Duplicate Entries to Unique Entries

spatstat.geom-package

The spatstat.geom Package

Approximate a Polygon by a Simpler Polygon

Summary of a List of Spatial Objects

Extract the Total Computation Time

Divide Image Into Sub-images

Separate Multiple Columns of Marks

Text, Arrow or Scale Bar in a Diagram

Volume of an Object

weighted.median

Weighted Median, Quantiles or Variance

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

Names of Tiles in a Tessellation

Divide Point Pattern into Sub-patterns

Summary of a Spatial Window

Vertices of a Window

Tessellation Delimited by Several Sets