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spatstat.geom (version 3.2-1)

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

69,467

Version

3.2-1

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

May 9th, 2023

Functions in spatstat.geom (3.2-1)

Extract or Replace Subset of a List of Things

Extract Subset of Image

Extract or Replace Subset of Point Pattern

Extract.anylist

Extract or Replace Subset of a List of Things

Extract Subset of Line Segment Pattern

Extract Subset of Multidimensional Point Pattern

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Extract Subset of Window

S3 Group Generic methods for images

Extract or Replace Subset of a List of Spatial Objects

Extract.splitppp

Extract or Replace Sub-Patterns

Extract or Change the Window of a Spatial Object

S3 Group Generic methods for List of Images

as.function.tess

Convert a Tessellation to a Function

Convert Data to Hyperframe

Extract or Replace Subset of Tessellation

Extract or Change the Containing Rectangle of a Spatial Object

Subset of Quadrature Scheme

Extract.layered

Extract or Replace Subset of a Layered Object

Apply Affine Transformation To Pixel Image

Extract Window of Spatial Object

Apply Affine Transformation To Window

Apply Affine Transformation To Point Pattern

Fill Plot With Texture

Apply Affine Transformation

Convert Data to Multi-Dimensional Box

Convert to Colour Map

Apply Affine Transformation To Line Segment Pattern

Apply Geometrical Transformation To Tessellation

Difference of Disc Areas

Minkowski Sum of Windows

Orientation Angles of Line Segments

Convert Pixel Image to Matrix or Array

Combine Two Line Segment Patterns

Reset Values in Subset of Image

Check Whether Image Contains NA Values

Convert Pixel Image to Matrix

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Apply Function to Every Neighbourhood in a Point Pattern

List of Objects

Convert Data to Three-Dimensional Box

Convert Data To Tessellation

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

as.data.frame.tess

Convert Tessellation to Data Frame

Area of a Window

Distance to Boundary of Window

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Difference of Disc Areas

Convert List of Two-Dimensional Spatial Objects

as.data.frame.im

Convert Pixel Image to Data Frame

Convert Pixel Image to Function of Coordinates

Convert Data To Class ppp

Convert Data To Class psp

Convert to Pixel Image

as.function.owin

Convert Window to Indicator Function

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

as.data.frame.owin

Convert Window to Data Frame

Convert Data To Class owin

Create Colour Scheme for a Range of Numbers

Smallest Enclosing Circle

Convert a Window to a Polygonal Window

Border Region of a Window

Three-Dimensional Box

Convert Data To Layered Object

Centroid of a window

Multi-Dimensional Box

Pixel Image Approximation of a Window

Apply Function to Image Broken Down by Factor

Interactively Add Points

Apply a Function to a Point Pattern Broken Down by Factor

Convert and Compare Colours in Different Formats

Distance to Boundary of Window

Determine A Common Spatial Domain And Pixel Resolution

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

Distance to Boundary of Window

Subdivide a Window or Tessellation using a Set of Lines

complement.owin

Take Complement of a Window

Interactively Define a Rectangle

bounding.box.xy

Convex Hull of Points

Concatenate x,y Coordinate Vectors

Intersect Infinite Straight Lines with a Window

Connected Components of Tiles of a Tessellation

Bounding Box of a Window, Image, or Point Pattern

Cover Region with Discs

Pairwise distances

Close Pairs of Points

Convert Pixel Image from Numeric to Factor

Buffer Distance Tessellation

Close Pairs of Points in 3 Dimensions

Array of Contour Plots

Interactively Measure Distance

Contour plot of pixel image

Colour Lookup Tables

Convex Hull of Points

Extract or Assign Colour Values in a Colour Map

Classify Points in a Point Pattern

Interactively Define a Polygon

crossdist.default

Pairwise distances between two different sets of points

Distance Metric Defined by Convex Set

Weil's Convexifying Operation

Convolution of Pixel Images

Close Triples of Points

delaunayDistance

Distance on Delaunay Triangulation

Test Whether Objects Are Compatible

Morphological Closing

Test Whether Pixel Images Are Compatible

Connected components

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Pairwise distances between two different three-dimensional point patterns

Generate a Default Pattern of Dummy Points

Geometrical Calculations for Multi-Dimensional Box

Pairwise distances between two different point patterns

Delaunay Triangulation of Point Pattern

Dirichlet Tessellation of Point Pattern

Connected Components of a Point Pattern

edges2triangles

List Triangles in a Graph

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

List Dihedral Triples in a Graph

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Compute Areas of Tiles in Dirichlet Tessellation

Diameter of a Window

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Diameter of an Object

Geometrical Calculations for Three-Dimensional Box

Distance Map as a Function

Fourier Basis Functions

Distance Map of Line Segment Pattern

Corners of a rectangle

Extract the Domain of any Spatial Object

Distance Map of Window

Elliptical Window.

Safely Convert Point Pattern Window to Binary Mask

edit.hyperframe

Invoke Text Editor on Hyperframe

Distance Map of Point Pattern

Pairwise distances between two different line segment patterns

Determine Duplicated Points in a Spatial Point Pattern

Extract Boundary Edges of a Window.

Compute Quadrature Weights Based on Grid Counts

Crossing Points of Two Line Segment Patterns

Invoke Text Editor on Spatial Data

Spatial Function Class

Endpoints of Line Segment Pattern

Areas of Morphological Dilations

Morphological Dilation

Morphological Erosion of Windows

Evaluate Expression Involving Pixel Images

harmoniseLevels

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

framedist.pixels

Distance to Bounding Frame

Rectangular grid of points

Circular Window

First or Last Part of a Spatial Pattern

Check Whether Points Have Close Neighbours

Add margins to box in any dimension

Area of Part of Disc

Hexagonal Grid or Tessellation

Create a Pixel Image Object

Histogram of Values of a Spatial Function

Areas of Morphological Erosions

Class of Images

Morphological Erosion by a Disc

Apply Function Pixelwise to List of Images

Histogram of Pixel Values in an Image

Farthest Distance to Boundary of Window

integral.density

Compute Integral of One-Dimensional Kernel Density Estimate.

Perform Geometric Task using a Specified Metric

Find Largest Circle Inside Window

Exchange X and Y Coordinates

Infinite Straight Lines

Intersection, Union or Set Subtraction of Windows

Spatial Covariance of a Pixel Image

Intersection of Two Tessellations

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Make Pixel Images Compatible

Weighted Empirical Cumulative Distribution Function

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

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Intensity of a Dataset or a Model

Add margins to rectangle

Test Whether An Object Is A Linear Network

Make Objects Compatible

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

Integral of a Pixel Image

Test Whether Marks Are Present

Make Windows Compatible

Heat Kernel for a One-Dimensional Rod

Hyper Data Frame

Empirical Intensity of Point Pattern

Intensity of a Multidimensional Space-Time Point Pattern

Identify Points in a Point Pattern

Empirical Intensity of Line Segment Pattern

Determine Whether One Window is Contained In Another

Create List of Plotting Layers

Identify Segments in a Line Segment Pattern

Test Whether An Object Is A Point Pattern

Test Whether Points Are Inside A Multidimensional Box

Interpolate a Pixel Image

Determine Type of Window

Recognise a Multi-Dimensional Box

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Determine Whether an Object is Connected

Intersection Of Boxes Of Arbitrary Dimension

Test Whether Points Are Inside A Window

Test Whether A Point Pattern is Marked

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Test Whether An Object Is Empty

Compute Minimum or Maximum Nearest-Neighbour Distance

Mean of Empirical Cumulative Distribution Function

Test Whether An Object Is A Pixel Image

interp.colourmap

Interpolate smoothly between specified colours

Lengths of Line Segments

Level Set of a Pixel Image

Summarise Marks in Every Neighbourhood in a Point Pattern

methods.distfun

Geometrical Operations for Distance Functions

Marks of a Point Pattern

Test Whether An Object Is A Window

Test whether Object is Multitype

Distance for a Point Pattern Matching

Image of Nearest Defined Pixel Value

Find Line Segment Nearest to Each Point

Count Number of Geometrical Objects in a Spatial Dataset

Marks of a Line Segment Pattern

Number of Points in a Point Pattern

Methods for Spatial Functions

Nearest Neighbour Distances in Any Dimensions

Pad the Border of a Pixel Image

Distance Metric

Midpoints of Line Segment Pattern

Mean and Median of Pixel Values in an Image

Marks of a Tessellation

Pairwise distances

Nearest neighbour distances between line segments

Methods for Three-Dimensional Box

Methods for Multi-Dimensional Box

Pairwise distances

Nearest neighbour distances

Merge Levels of a Factor

methods.layered

Methods for Layered Objects

Nearest Neighbours Between Two Patterns

is.connected.ppp

Determine Whether a Point Pattern is Connected

Test Whether a Window is Convex

Methods for three-dimensional point patterns

Extract or Replace the Plot Arguments of a Layered Object

Generate a Row or Column Arrangement of Rectangles.

Methods for Multidimensional Space-Time Point Patterns

Nearest Neighbour Index Map as a Function

multiplicity.ppp

Count Multiplicity of Duplicate Points

nearest.raster.point

Find Pixel Nearest to a Given Point

methods.unitname

Methods for Units

Nearest Neighbours Between Two Patterns in 3D

Convert Spatial Object to Pixel Image

Colour Map for pH Values

Convert Window to Binary Mask under Constraints

K-th Nearest Point Map

Draw Points or Lines on a Surface Viewed in Perspective

Nearest neighbours in three dimensions

Convert Window to Pixel Image

Nearest Neighbours in Any Dimensions

Plot a Spatial Quadrature Scheme

Extract Pixel Centres as Point Pattern

Nearest neighbour distances in three dimensions

Number of Line Segments in a Line Segment Pattern

Count Number of Vertices

Nearest Neighbours Between Two Patterns in Any Dimensions

Make Periodic Copies of a Spatial Pattern

plot.quadratcount

Plot Quadrat Counts

Convert Point Pattern to Pixel Image

Class of Line Segment Patterns

Perspective Plot of Pixel Image

Create A Regular Polygon

Pairwise Distances in Any Dimensions

Multidimensional Space-Time Point Pattern

pppmatching.object

Class of Point Matchings

Reflect In Origin

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Quantile Tessellation

Rotate or Shift Infinite Lines

Create a Line Segment Pattern

Rotate a Window

Quantiles of Weighted Empirical Cumulative Distribution Function

Cut Line Segments Where They Intersect

Mark of Nearest Neighbour

pairdist.default

Pairwise distances

Spatial Dimension of a Dataset

Nearest neighbour

Morphological Opening

Convert Line Segment Pattern to Pixel Image

Quadrature Scheme Based on Pixel Grid

Plot a List of Things

plot.pppmatching

Plot a Point Matching

spatstat.geom-deprecated

Deprecated spatstat.geom functions

plot a Spatial Line Segment Pattern

Stratified random point pattern

Subset of Line Segment Satisfying A Condition

Plot a Graphics Symbol Map

Compute Area of Overlap

Create a Window

summary.anylist

Summary of a List of Things

test.crossing.psp

Check Whether Segments Cross

Plot a Tessellation

Add Text Labels to Spatial Pattern

Pairwise distances in Three Dimensions

Plot a Three-Dimensional Point Pattern

plot a Spatial Point Pattern

Extract List of Tiles in a Tessellation

Plot a Yardstick or Scale Bar

Names of Tiles in a Tessellation

Plot a Spatial Window

plot.textstring

Plot a Text String

Plot a Pixel Image

Pairwise distances between line segments

update.symbolmap

Update a Graphics Symbol Map.

Plot a List of Images

Place Points Evenly Along Specified Lines

Create a Point Pattern

plot.texturemap

Plot a Texture Map

Unstack Each Spatial Object in a List of Objects

Perimeter Length of Window

Plot a Colour Map

Class of Point Patterns

Plot a List of Things

Find Location of Maximum in a Pixel Image

Tessellation Using Polar Coordinates

Three Dimensional Point Pattern

plot.hyperframe

Plot Entries in a Hyperframe

Print Brief Details of an Image

Print a Quadrature Scheme

Quadrat counting for a point pattern

Test Which Side of Infinite Line a Point Falls On

Print Brief Details of a Point Pattern Dataset

Print Brief Details of a Line Segment Pattern Dataset

Divide Region into Quadrats

Convert Line Segment Pattern to Binary Pixel Mask

Class of Quadrature Schemes

Print Brief Details of a Spatial Window

Cartesian Coordinates for a Pixel Raster

Plot a List of Spatial Objects

Distance Map Using Rectangular Distance Metric

Reorder Levels of a Factor-Valued Image or Pattern

Plot a List of Point Patterns

Quasirandom Patterns

Generate Quasirandom Point Pattern in Given Window

Generate a Quadrature Scheme from a Point Pattern

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Distance Between Two Point Patterns

Print Progress Reports

Require a Specific Version of a Package

Create a Point Matching

Convert Window to Another Unit of Length

Convert Point Pattern to Another Unit of Length

Generate N Uniform Random Points in a Rectangle

Apply Scalar Dilation

restrict.colourmap

Restrict a Colour Map to a Subset of Values

project2segment

Move Point To Nearest Line

Apply Vector Translation

Create Colour-Valued Pixel Image

Convert dataset to another unit of length

Explode a Point Pattern by Displacing Duplicated Points

Apply Vector Translation To Pixel Image

Find Nearest Point in a Region

Sample Quantiles of Pixel Image

Convert Pixel Image to Another Unit of Length

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Quantile Function

Apply Numerical Rounding to Spatial Coordinates

Estimate window from points alone

Detect Numerical Rounding

Convert Line Segment Pattern to Another Unit of Length

rescue.rectangle

Convert Window Back To Rectangle

Simulate systematic random point pattern

Random Perturbation of a Point Pattern

Generate grid of parallel lines with random displacement

Simple Point-and-Click Interface Panels

scaletointerval

Rescale Data to Lie Between Specified Limits

Read Point Pattern From Data File

Divide Image Into Sub-images

Divide Point Pattern into Sub-patterns

Print Names and Version Numbers of Libraries Loaded

run.simplepanel

Run Point-and-Click Interface

Rotate a Pixel Image

spatstat.geom-internal

Internal spatstat.geom functions

Rotate a Point Pattern

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Set Covariance of a Window

Rotate a Line Segment Pattern

spatstat.geom-package

The spatstat.geom Package

List of Two-Dimensional Spatial Objects

Apply Vector Translation To Window

Apply Vector Translation To Point Pattern

summary.splitppp

Summary of a Split Point Pattern

Superimpose Several Geometric Patterns

Apply Vector Translation To Line Segment Pattern

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Check For Empty Tiles in a Tessellation

Approximate a Polygon by a Simpler Polygon

Extract the Total Computation Time

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

Subset of Point Pattern Satisfying A Condition

Divide Multidimensional Point Pattern into Sub-patterns

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

Summary of a Spatial Window

summary.distfun

Summarizing a Function of Spatial Location

spatstat.options

Internal Options in Spatstat Package

uniquemap.default

Map Duplicate Entries to Unique Entries

Summary of a List of Things

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Name for Unit of Length

Spokes pattern of dummy points

Summarizing a Quadrature Scheme

Summary of a List of Spatial Objects

Cut margins from rectangle

Summary of a Point Pattern Dataset

Compute Areas of Tiles in a Tessellation

Determine Which Tile Contains Each Given Point

Record the Computation Time

Map Duplicate Entries to Unique Entries

Text, Arrow or Scale Bar in a Diagram

Summarizing a Pixel Image

Rounding of Pixel Values

transformquantiles

Transform the Quantiles

tweak.colourmap

Change Colour Values in a Colour Map

Summary of a Line Segment Pattern Dataset

Graphics Symbol Map

Union of Data and Dummy Points

Extract Unique Points from a Spatial Point Pattern

Create a Tessellation

Convert Pixel Array Between Different Conventions

triangulate.owin

Decompose Window into Triangles

Weighted kernel smoother

Plot Image or Tessellation Using Texture Fill

Tessellation Delimited by Several Sets

Vertices of a Window

Separate Multiple Columns of Marks

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Weighted Histogram

weighted.median

Weighted Median, Quantiles or Variance

Volume of an Object