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spatstat.geom (version 3.2-7)

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

3.2-7

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

October 20th, 2023

Functions in spatstat.geom (3.2-7)

Extract or Replace Subset of Point Pattern

Extract.layered

Extract or Replace Subset of a Layered Object

Extract Subset of Line Segment Pattern

Subset of Quadrature Scheme

Extract Subset of Multidimensional Point Pattern

Extract Subset of Image

Extract.anylist

Extract or Replace Subset of a List of Things

Extract Subset of Window

Extract or Replace Subset of a List of Things

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Minkowski Sum of Windows

Extract Window of Spatial Object

Extract or Change the Containing Rectangle of a Spatial Object

Extract or Replace Subset of Tessellation

Extract or Change the Window of a Spatial Object

S3 Group Generic methods for List of Images

S3 Group Generic methods for images

Extract or Replace Subset of a List of Spatial Objects

Extract.splitppp

Extract or Replace Sub-Patterns

Reset Values in Subset of Image

Apply Affine Transformation To Point Pattern

Apply Affine Transformation

Fill Plot With Texture

Apply Affine Transformation To Pixel Image

Check Whether Image Contains NA Values

List of Objects

Apply Affine Transformation To Window

Apply Geometrical Transformation To Tessellation

Orientation Angles of Line Segments

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

as.data.frame.im

Convert Pixel Image to Data Frame

Apply Affine Transformation To Line Segment Pattern

Combine Two Line Segment Patterns

Difference of Disc Areas

Convert Data to Multi-Dimensional Box

Convert Data to Three-Dimensional Box

Convert to Colour Map

Area of a Window

Difference of Disc Areas

as.data.frame.owin

Convert Window to Data Frame

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Apply Function to Every Neighbourhood in a Point Pattern

Convert Pixel Image to Function of Coordinates

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

Convert Data To Layered Object

Pixel Image Approximation of a Window

Convert to Pixel Image

as.function.tess

Convert a Tessellation to a Function

Convert Data To Class ppp

as.function.owin

Convert Window to Indicator Function

Convert Data to Hyperframe

Convert Pixel Image to Matrix or Array

Smallest Enclosing Circle

Convert Data To Class psp

Distance to Boundary of Window

Distance to Boundary of Window

Convert Pixel Image to Matrix

Convert Data To Class owin

Subdivide a Window or Tessellation using a Set of Lines

Three-Dimensional Box

as.data.frame.tess

Convert Tessellation to Data Frame

Convert a Window to a Polygonal Window

Convert List of Two-Dimensional Spatial Objects

Create Colour Scheme for a Range of Numbers

Border Region of a Window

Connected components

Interactively Measure Distance

Interactively Define a Rectangle

Connected Components of a Point Pattern

Close Pairs of Points

Multi-Dimensional Box

Convex Hull of Points

bounding.box.xy

Convex Hull of Points

Close Pairs of Points in 3 Dimensions

Interactively Define a Polygon

Weil's Convexifying Operation

Convert Data To Tessellation

Distance to Boundary of Window

Bounding Box of a Window, Image, or Point Pattern

Close Triples of Points

Apply Function to Image Broken Down by Factor

Morphological Closing

Apply a Function to a Point Pattern Broken Down by Factor

Generate a Default Pattern of Dummy Points

Delaunay Triangulation of Point Pattern

Test Whether Objects Are Compatible

Test Whether Pixel Images Are Compatible

Buffer Distance Tessellation

Colour Lookup Tables

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Extract or Assign Colour Values in a Colour Map

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Distance Map as a Function

Array of Contour Plots

Convert and Compare Colours in Different Formats

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Centroid of a window

Corners of a rectangle

Distance Metric Defined by Convex Set

Distance Map of Window

Distance Map of Point Pattern

Fourier Basis Functions

Determine A Common Spatial Domain And Pixel Resolution

framedist.pixels

Distance to Bounding Frame

Class of Images

Convolution of Pixel Images

complement.owin

Take Complement of a Window

delaunayDistance

Distance on Delaunay Triangulation

Spatial Covariance of a Pixel Image

Cover Region with Discs

edges2triangles

List Triangles in a Graph

Pairwise distances

Areas of Morphological Dilations

Convert Pixel Image from Numeric to Factor

Integral of a Pixel Image

Morphological Dilation

Interactively Add Points

Concatenate x,y Coordinate Vectors

Classify Points in a Point Pattern

Intersect Infinite Straight Lines with a Window

Diameter of an Object

Circular Window

List Dihedral Triples in a Graph

Geometrical Calculations for Three-Dimensional Box

Spatial Function Class

Distance Map of Line Segment Pattern

crossdist.default

Pairwise distances between two different sets of points

Rectangular grid of points

Pairwise distances between two different three-dimensional point patterns

Pairwise distances between two different line segment patterns

Connected Components of Tiles of a Tessellation

Contour plot of pixel image

Add margins to rectangle

Area of Part of Disc

Crossing Points of Two Line Segment Patterns

Make Objects Compatible

Dirichlet Tessellation of Point Pattern

Test Whether Points Are Inside A Multidimensional Box

Extract the Domain of any Spatial Object

Test Whether Points Are Inside A Window

Determine Duplicated Points in a Spatial Point Pattern

Compute Areas of Tiles in Dirichlet Tessellation

Extract Boundary Edges of a Window.

Intersection of Two Tessellations

Perform Geometric Task using a Specified Metric

Pairwise distances between two different point patterns

Intensity of a Dataset or a Model

Create List of Plotting Layers

Test Whether An Object Is A Linear Network

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Extract or Replace the Plot Arguments of a Layered Object

Safely Convert Point Pattern Window to Binary Mask

Areas of Morphological Erosions

Morphological Erosion by a Disc

Morphological Erosion of Windows

Evaluate Expression Involving Pixel Images

methods.unitname

Methods for Units

First or Last Part of a Spatial Pattern

Distance Metric

harmoniseLevels

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

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

Hexagonal Grid or Tessellation

Create a Pixel Image Object

Check Whether Points Have Close Neighbours

Geometrical Calculations for Multi-Dimensional Box

Apply Function Pixelwise to List of Images

edit.hyperframe

Invoke Text Editor on Hyperframe

Invoke Text Editor on Spatial Data

Weighted Empirical Cumulative Distribution Function

Diameter of a Window

Elliptical Window.

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Midpoints of Line Segment Pattern

Recognise a Multi-Dimensional Box

multiplicity.ppp

Count Multiplicity of Duplicate Points

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Heat Kernel for a One-Dimensional Rod

Hyper Data Frame

Nearest neighbour distances between line segments

Test whether Object is Multitype

Make Pixel Images Compatible

Test Whether Marks Are Present

Integral of a Function or Spatial Object

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Make Windows Compatible

integral.density

Compute Integral of One-Dimensional Kernel Density Estimate.

Test Whether A Point Pattern is Marked

Marks of a Point Pattern

Histogram of Values of a Spatial Function

Test Whether An Object Is A Window

Intersection Of Boxes Of Arbitrary Dimension

Histogram of Pixel Values in an Image

Nearest Neighbour Index Map as a Function

Marks of a Line Segment Pattern

Intersection, Union or Set Subtraction of Windows

Methods for Multi-Dimensional Box

methods.distfun

Geometrical Operations for Distance Functions

Endpoints of Line Segment Pattern

Test Whether An Object Is A Point Pattern

Farthest Distance to Boundary of Window

Mean of Empirical Cumulative Distribution Function

Mean and Median of Pixel Values in an Image

Find Largest Circle Inside Window

Test Whether An Object Is A Pixel Image

Exchange X and Y Coordinates

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

Infinite Straight Lines

Compute Quadrature Weights Based on Grid Counts

Determine Type of Window

Determine Whether One Window is Contained In Another

Find Line Segment Nearest to Each Point

interp.colourmap

Interpolate smoothly between specified colours

Interpolate a Pixel Image

Nearest Neighbours Between Two Patterns

Nearest Neighbours Between Two Patterns in 3D

Add margins to box in any dimension

Determine Whether an Object is Connected

is.connected.ppp

Determine Whether a Point Pattern is Connected

Generate a Row or Column Arrangement of Rectangles.

Distance for a Point Pattern Matching

Identify Points in a Point Pattern

Identify Segments in a Line Segment Pattern

Empirical Intensity of Point Pattern

Nearest neighbour

Compute Minimum or Maximum Nearest-Neighbour Distance

Intensity of a Multidimensional Space-Time Point Pattern

Methods for Spatial Functions

methods.layered

Methods for Layered Objects

Empirical Intensity of Line Segment Pattern

Nearest neighbours in three dimensions

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

nearest.raster.point

Find Pixel Nearest to a Given Point

Image of Nearest Defined Pixel Value

Colour Map for pH Values

Pad the Border of a Pixel Image

Pairwise distances in Three Dimensions

Nearest neighbour distances in three dimensions

Test Whether a Window is Convex

Nearest Neighbour Distances in Any Dimensions

Test Whether An Object Is Empty

K-th Nearest Point Map

Mark of Nearest Neighbour

Level Set of a Pixel Image

Pairwise distances

Compute Area of Overlap

Lengths of Line Segments

Merge Levels of a Factor

Create a Window

Perimeter Length of Window

Marks of a Tessellation

Methods for Three-Dimensional Box

Perspective Plot of Pixel Image

Draw Points or Lines on a Surface Viewed in Perspective

Make Periodic Copies of a Spatial Pattern

Convert Line Segment Pattern to Pixel Image

Summarise Marks in Every Neighbourhood in a Point Pattern

Quadrature Scheme Based on Pixel Grid

Nearest Neighbours Between Two Patterns in Any Dimensions

Nearest neighbour distances

Convert Window to Binary Mask under Constraints

Pairwise Distances in Any Dimensions

Pairwise distances between line segments

Methods for three-dimensional point patterns

Convert Window to Pixel Image

Convert Point Pattern to Pixel Image

Methods for Multidimensional Space-Time Point Patterns

Nearest Neighbours in Any Dimensions

Count Number of Geometrical Objects in a Spatial Dataset

Count Number of Vertices

Morphological Opening

Three Dimensional Point Pattern

Create a Point Pattern

plot a Spatial Line Segment Pattern

Plot a Spatial Quadrature Scheme

Class of Line Segment Patterns

Convert Line Segment Pattern to Binary Pixel Mask

plot.hyperframe

Plot Entries in a Hyperframe

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Plot a Pixel Image

Quantile Tessellation

plot a Spatial Point Pattern

plot.pppmatching

Plot a Point Matching

plot.texturemap

Plot a Texture Map

Plot a Spatial Window

Extract Pixel Centres as Point Pattern

Number of Points in a Point Pattern

Number of Line Segments in a Line Segment Pattern

Pairwise distances

Plot a Three-Dimensional Point Pattern

pairdist.default

Pairwise distances

Convert Spatial Object to Pixel Image

Place Points Evenly Along Specified Lines

Tessellation Using Polar Coordinates

Plot a Yardstick or Scale Bar

Multidimensional Space-Time Point Pattern

Plot a List of Point Patterns

Print Brief Details of an Image

Plot a Graphics Symbol Map

Create A Regular Polygon

Plot a List of Things

Plot a Tessellation

Reorder Levels of a Factor-Valued Image or Pattern

Plot a List of Things

Print Brief Details of a Spatial Window

plot.textstring

Plot a Text String

Print Brief Details of a Point Pattern Dataset

Class of Quadrature Schemes

Generate Quasirandom Point Pattern in Given Window

Quadrat counting for a point pattern

Cartesian Coordinates for a Pixel Raster

Create a Line Segment Pattern

Find Nearest Point in a Region

Plot a Colour Map

Print Progress Reports

Estimate window from points alone

project2segment

Move Point To Nearest Line

Quantile Function

Quasirandom Patterns

Plot a List of Images

Random Perturbation of a Point Pattern

Convert Pixel Image to Another Unit of Length

Explode a Point Pattern by Displacing Duplicated Points

Read Point Pattern From Data File

plot.quadratcount

Plot Quadrat Counts

Plot a List of Spatial Objects

Class of Point Patterns

Create Colour-Valued Pixel Image

Detect Numerical Rounding

Simulate systematic random point pattern

Generate grid of parallel lines with random displacement

Cut margins from rectangle

Distance Between Two Point Patterns

Rotate a Line Segment Pattern

Convert Point Pattern to Another Unit of Length

Apply Vector Translation To Point Pattern

Convert Line Segment Pattern to Another Unit of Length

Convert Window to Another Unit of Length

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Quantiles of Weighted Empirical Cumulative Distribution Function

Sample Quantiles of Pixel Image

Rotate a Pixel Image

Create a Point Matching

Text, Arrow or Scale Bar in a Diagram

Apply Numerical Rounding to Spatial Coordinates

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Require a Specific Version of a Package

pppmatching.object

Class of Point Matchings

Apply Scalar Dilation

Apply Vector Translation To Pixel Image

Convert dataset to another unit of length

scaletointerval

Rescale Data to Lie Between Specified Limits

Set Covariance of a Window

Apply Vector Translation To Window

Rotate or Shift Infinite Lines

Subset of Point Pattern Satisfying A Condition

Divide Point Pattern into Sub-patterns

spatstat.geom-internal

Internal spatstat.geom functions

Print Brief Details of a Line Segment Pattern Dataset

Determine Which Tile Contains Each Given Point

Print a Quadrature Scheme

rescue.rectangle

Convert Window Back To Rectangle

Generate N Uniform Random Points in a Rectangle

run.simplepanel

Run Point-and-Click Interface

restrict.colourmap

Restrict a Colour Map to a Subset of Values

Rotate a Window

Add Text Labels to Spatial Pattern

Cut Line Segments Where They Intersect

Apply Vector Translation

Divide Region into Quadrats

Generate a Quadrature Scheme from a Point Pattern

Rotate a Point Pattern

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

List of Two-Dimensional Spatial Objects

Summary of a List of Things

spatstat.geom-package

The spatstat.geom Package

Simple Point-and-Click Interface Panels

Reflect In Origin

Print Names and Version Numbers of Libraries Loaded

Apply Vector Translation To Line Segment Pattern

spatstat.options

Internal Options in Spatstat Package

Approximate a Polygon by a Simpler Polygon

Divide Multidimensional Point Pattern into Sub-patterns

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Plot Image or Tessellation Using Texture Fill

Subset of Line Segment Satisfying A Condition

Unstack Each Spatial Object in a List of Objects

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

uniquemap.default

Map Duplicate Entries to Unique Entries

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Distance Map Using Rectangular Distance Metric

Extract Unique Points from a Spatial Point Pattern

Create a Tessellation

Summarizing a Pixel Image

Weighted Histogram

Summary of a Line Segment Pattern Dataset

Spokes pattern of dummy points

Names of Tiles in a Tessellation

Summary of a List of Spatial Objects

Weighted kernel smoother

Superimpose Several Geometric Patterns

Stratified random point pattern

Summary of a Spatial Window

Extract the Total Computation Time

Compute Areas of Tiles in a Tessellation

Record the Computation Time

Find Location of Maximum in a Pixel Image

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

summary.splitppp

Summary of a Split Point Pattern

Extract List of Tiles in a Tessellation

Summarizing a Quadrature Scheme

test.crossing.psp

Check Whether Segments Cross

summary.distfun

Summarizing a Function of Spatial Location

Check For Empty Tiles in a Tessellation

summary.anylist

Summary of a List of Things

Summary of a Point Pattern Dataset

Union of Data and Dummy Points

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

triangulate.owin

Decompose Window into Triangles

Tessellation Delimited by Several Sets

Spatial Dimension of a Dataset

Map Duplicate Entries to Unique Entries

Divide Image Into Sub-images

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Separate Multiple Columns of Marks

Test Which Side of Infinite Line a Point Falls On

tweak.colourmap

Change Colour Values in a Colour Map

transformquantiles

Transform the Quantiles

Convert Pixel Array Between Different Conventions

update.symbolmap

Update a Graphics Symbol Map.

Name for Unit of Length

Graphics Symbol Map

weighted.median

Weighted Median, Quantiles or Variance

Vertices of a Window

Volume of an Object

Rounding of Pixel Values