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spatstat.geom (version 3.1-0)

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

3.1-0

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

March 12th, 2023

Functions in spatstat.geom (3.1-0)

Extract Subset of Line Segment Pattern

Subset of Quadrature Scheme

Extract or Replace Subset of Point Pattern

Convert Data to Three-Dimensional Box

Close Pairs of Points

Apply Affine Transformation To Pixel Image

Combine Two Line Segment Patterns

S3 Group Generic methods for images

Interactively Define a Rectangle

Distance to Boundary of Window

Minkowski Sum of Windows

Buffer Distance Tessellation

Reset Values in Subset of Image

Contour plot of pixel image

Colour Lookup Tables

Extract or Replace Subset of a List of Things

Bounding Box of a Window, Image, or Point Pattern

Empirical Intensity of Point Pattern

Apply Affine Transformation To Window

Extract or Change the Containing Rectangle of a Spatial Object

Convert Data to Multi-Dimensional Box

Convert to Colour Map

Geometrical Calculations for Three-Dimensional Box

as.data.frame.owin

Convert Window to Data Frame

Connected components

Fill Plot With Texture

Convert Data to Hyperframe

Close Triples of Points

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Distance Metric Defined by Convex Set

Convert Pixel Image to Matrix

Convert Data To Layered Object

Distance Map as a Function

List of Objects

Extract.anylist

Extract or Replace Subset of a List of Things

bounding.box.xy

Convex Hull of Points

Convert to Pixel Image

First or Last Part of a Spatial Pattern

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Nearest Neighbours Between Two Patterns in 3D

Extract or Change the Window of a Spatial Object

Apply Affine Transformation To Line Segment Pattern

Determine Duplicated Points in a Spatial Point Pattern

Orientation Angles of Line Segments

Three-Dimensional Box

as.function.owin

Convert Window to Indicator Function

Distance to Boundary of Window

Extract Subset of Multidimensional Point Pattern

Apply Affine Transformation To Point Pattern

Smallest Enclosing Circle

Convert Data To Class owin

Apply Affine Transformation

Extract or Replace Subset of Tessellation

edit.hyperframe

Invoke Text Editor on Hyperframe

Difference of Disc Areas

Extract Subset of Image

Extract the Domain of any Spatial Object

Apply Geometrical Transformation To Tessellation

Add margins to box in any dimension

Convert Data To Class psp

Morphological Closing

Pairwise distances between two different three-dimensional point patterns

Corners of a rectangle

Extract.layered

Extract or Replace Subset of a Layered Object

Extract Subset of Window

Close Pairs of Points in 3 Dimensions

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Intersect Infinite Straight Lines with a Window

Extract Window of Spatial Object

Extract or Replace Subset of a List of Spatial Objects

Extract.splitppp

Extract or Replace Sub-Patterns

Convert a Window to a Polygonal Window

Intensity of a Dataset or a Model

Convert Line Segment Pattern to Binary Pixel Mask

Integral of a Pixel Image

Concatenate x,y Coordinate Vectors

Apply Function to Every Neighbourhood in a Point Pattern

Area of a Window

S3 Group Generic methods for List of Images

Check Whether Image Contains NA Values

Apply Function to Image Broken Down by Factor

Pairwise distances

Safely Convert Point Pattern Window to Binary Mask

Convert Pixel Image to Matrix or Array

Create Colour Scheme for a Range of Numbers

Border Region of a Window

Convert List of Two-Dimensional Spatial Objects

as.function.tess

Convert a Tessellation to a Function

Crossing Points of Two Line Segment Patterns

Convert Data To Tessellation

Interactively Define a Polygon

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

as.data.frame.tess

Convert Tessellation to Data Frame

Array of Contour Plots

Evaluate Expression Involving Pixel Images

Convex Hull of Points

Interactively Measure Distance

Interpolate a Pixel Image

Identify Segments in a Line Segment Pattern

Convert Data To Class ppp

Morphological Dilation

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

as.data.frame.im

Convert Pixel Image to Data Frame

Connected Components of Tiles of a Tessellation

Test Whether Points Are Inside A Window

Pairwise distances between two different point patterns

Cover Region with Discs

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

crossdist.default

Pairwise distances between two different sets of points

Dirichlet Tessellation of Point Pattern

Nearest neighbour distances

Difference of Disc Areas

Geometrical Calculations for Multi-Dimensional Box

Test Whether Objects Are Compatible

Pixel Image Approximation of a Window

Add margins to rectangle

Pairwise distances between two different line segment patterns

Divide Point Pattern into Sub-patterns

Distance to Boundary of Window

Spatial Function Class

Apply a Function to a Point Pattern Broken Down by Factor

Convert Pixel Image to Function of Coordinates

Extract or Assign Colour Values in a Colour Map

Distance Map of Point Pattern

integral.density

Compute Integral of One-Dimensional Kernel Density Estimate.

Distance Map of Window

Nearest Neighbours Between Two Patterns

Compute Areas of Tiles in Dirichlet Tessellation

Diameter of an Object

Print Brief Details of an Image

Test Whether Points Are Inside A Multidimensional Box

Multi-Dimensional Box

Test Whether An Object Is A Point Pattern

Distance Map of Line Segment Pattern

Convert Pixel Image from Numeric to Factor

Connected Components of a Point Pattern

Convert and Compare Colours in Different Formats

Test Whether Pixel Images Are Compatible

Test Whether An Object Is A Linear Network

Marks of a Tessellation

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Subdivide a Window or Tessellation using a Set of Lines

Make Pixel Images Compatible

Area of Part of Disc

Spatial Covariance of a Pixel Image

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Determine A Common Spatial Domain And Pixel Resolution

framedist.pixels

Distance to Bounding Frame

Summarise Marks in Every Neighbourhood in a Point Pattern

Apply Function Pixelwise to List of Images

Centroid of a window

Convolution of Pixel Images

plot a Spatial Point Pattern

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Weil's Convexifying Operation

Nearest Neighbours in Any Dimensions

Pairwise distances in Three Dimensions

Areas of Morphological Erosions

Hyper Data Frame

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Farthest Distance to Boundary of Window

rescue.rectangle

Convert Window Back To Rectangle

Rectangular grid of points

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Diameter of a Window

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Histogram of Pixel Values in an Image

Compute Minimum or Maximum Nearest-Neighbour Distance

Methods for Multi-Dimensional Box

Weighted Empirical Cumulative Distribution Function

Test Whether An Object Is A Pixel Image

Test Whether An Object Is Empty

Delaunay Triangulation of Point Pattern

Histogram of Values of a Spatial Function

Interactively Add Points

List Dihedral Triples in a Graph

Plot a List of Point Patterns

Extract Boundary Edges of a Window.

Make Objects Compatible

Compute Quadrature Weights Based on Grid Counts

Infinite Straight Lines

Circular Window

interp.colourmap

Interpolate smoothly between specified colours

delaunayDistance

Distance on Delaunay Triangulation

Morphological Erosion by a Disc

Identify Points in a Point Pattern

edges2triangles

List Triangles in a Graph

Class of Images

complement.owin

Take Complement of a Window

Areas of Morphological Dilations

Nearest Neighbour Distances in Any Dimensions

Classify Points in a Point Pattern

Check Whether Points Have Close Neighbours

Invoke Text Editor on Spatial Data

Endpoints of Line Segment Pattern

Generate a Default Pattern of Dummy Points

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

Empirical Intensity of Line Segment Pattern

Morphological Erosion of Windows

Intersection of Two Tessellations

Heat Kernel for a One-Dimensional Rod

Simulate systematic random point pattern

Determine Whether an Object is Connected

nearest.raster.point

Find Pixel Nearest to a Given Point

Methods for Three-Dimensional Box

Make Windows Compatible

Elliptical Window.

Morphological Opening

Number of Line Segments in a Line Segment Pattern

Plot a List of Things

Create a Pixel Image Object

Intensity of a Multidimensional Space-Time Point Pattern

Nearest Neighbour Index Map as a Function

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Mean of Empirical Cumulative Distribution Function

Methods for three-dimensional point patterns

Midpoints of Line Segment Pattern

Perform Geometric Task using a Specified Metric

Convert Point Pattern to Pixel Image

Determine Whether One Window is Contained In Another

Create List of Plotting Layers

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Methods for Multidimensional Space-Time Point Patterns

Exchange X and Y Coordinates

Test Whether An Object Is A Window

Fourier Basis Functions

harmoniseLevels

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

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

Methods for Spatial Functions

Test Whether Marks Are Present

Marks of a Point Pattern

Pairwise distances between line segments

Quadrature Scheme Based on Pixel Grid

Marks of a Line Segment Pattern

Summarizing a Quadrature Scheme

invoke.symbolmap

Plot Data Using Graphics Symbol Map

K-th Nearest Point Map

Plot a Graphics Symbol Map

Find Nearest Point in a Region

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Make Periodic Copies of a Spatial Pattern

methods.distfun

Geometrical Operations for Distance Functions

Nearest neighbour distances between line segments

Determine Type of Window

methods.unitname

Methods for Units

is.connected.ppp

Determine Whether a Point Pattern is Connected

pairdist.default

Pairwise distances

Merge Levels of a Factor

plot.hyperframe

Plot Entries in a Hyperframe

Pairwise distances

Quantile Function

Convert Window to Pixel Image

multiplicity.ppp

Count Multiplicity of Duplicate Points

Hexagonal Grid or Tessellation

plot a Spatial Line Segment Pattern

Rotate a Line Segment Pattern

Test Whether a Window is Convex

Apply Vector Translation To Line Segment Pattern

Print a Quadrature Scheme

Generate a Row or Column Arrangement of Rectangles.

run.simplepanel

Run Point-and-Click Interface

Intersection, Union or Set Subtraction of Windows

Find Line Segment Nearest to Each Point

Intersection Of Boxes Of Arbitrary Dimension

Plot a Spatial Window

Extract or Replace the Plot Arguments of a Layered Object

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

Print Brief Details of a Spatial Window

Plot a Colour Map

Distance Metric

Nearest neighbour distances in three dimensions

Compute Area of Overlap

Test Whether A Point Pattern is Marked

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Plot a Tessellation

Find Largest Circle Inside Window

Count Number of Geometrical Objects in a Spatial Dataset

Level Set of a Pixel Image

Nearest neighbours in three dimensions

Plot a List of Images

Create a Window

Pad the Border of a Pixel Image

plot.textstring

Plot a Text String

Perimeter Length of Window

Test whether Object is Multitype

Convert Spatial Object to Pixel Image

Mean and Median of Pixel Values in an Image

Distance for a Point Pattern Matching

Extract Unique Points from a Spatial Point Pattern

plot.pppmatching

Plot a Point Matching

Distance Map Using Rectangular Distance Metric

Count Number of Vertices

Detect Numerical Rounding

Print Brief Details of a Point Pattern Dataset

Lengths of Line Segments

Convert Pixel Image to Another Unit of Length

Mark of Nearest Neighbour

plot.quadratcount

Plot Quadrat Counts

Plot a List of Spatial Objects

Pairwise distances

Convert Window to Binary Mask under Constraints

Perspective Plot of Pixel Image

Image of Nearest Defined Pixel Value

Pairwise Distances in Any Dimensions

Test Which Side of Infinite Line a Point Falls On

Create a Point Pattern

Plot a Yardstick or Scale Bar

Plot a Spatial Quadrature Scheme

Nearest neighbour

Determine Which Tile Contains Each Given Point

Class of Line Segment Patterns

Generate grid of parallel lines with random displacement

Print Brief Details of a Line Segment Pattern Dataset

Create a Line Segment Pattern

Plot a List of Things

Number of Points in a Point Pattern

Approximate a Polygon by a Simpler Polygon

Summarizing a Pixel Image

methods.layered

Methods for Layered Objects

Summary of a List of Things

Spatial Dimension of a Dataset

Convert Window to Another Unit of Length

Simple Point-and-Click Interface Panels

Convert Line Segment Pattern to Pixel Image

Quasirandom Patterns

Class of Point Patterns

Divide Region into Quadrats

plot.texturemap

Plot a Texture Map

Create Colour-Valued Pixel Image

Summary of a Line Segment Pattern Dataset

Extract List of Tiles in a Tessellation

Apply Vector Translation To Pixel Image

Print Names and Version Numbers of Libraries Loaded

Apply Scalar Dilation

Summary of a Spatial Window

Estimate window from points alone

Quantile Tessellation

Divide Multidimensional Point Pattern into Sub-patterns

Plot a Three-Dimensional Point Pattern

Divide Image Into Sub-images

Class of Quadrature Schemes

Plot a Pixel Image

Rotate a Pixel Image

project2segment

Move Point To Nearest Line

Nearest Neighbours Between Two Patterns in Any Dimensions

Check For Empty Tiles in a Tessellation

Summary of a Point Pattern Dataset

Generate Quasirandom Point Pattern in Given Window

Subset of Line Segment Satisfying A Condition

Rotate or Shift Infinite Lines

Union of Data and Dummy Points

Set Covariance of a Window

Read Point Pattern From Data File

Print Progress Reports

Cut Line Segments Where They Intersect

Convert Line Segment Pattern to Another Unit of Length

Weighted Histogram

Weighted kernel smoother

Cartesian Coordinates for a Pixel Raster

Reflect In Origin

Convert Point Pattern to Another Unit of Length

Explode a Point Pattern by Displacing Duplicated Points

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Stratified random point pattern

scaletointerval

Rescale Data to Lie Between Specified Limits

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Draw Points or Lines on a Surface Viewed in Perspective

spatstat.geom-deprecated

Deprecated spatstat.geom functions

restrict.colourmap

Restrict a Colour Map to a Subset of Values

Colour Map for pH Values

Apply Vector Translation To Window

uniquemap.default

Map Duplicate Entries to Unique Entries

Generate N Uniform Random Points in a Rectangle

Three Dimensional Point Pattern

Graphics Symbol Map

Random Perturbation of a Point Pattern

tweak.colourmap

Change Colour Values in a Colour Map

Apply Vector Translation To Point Pattern

Superimpose Several Geometric Patterns

spatstat.geom-internal

Internal spatstat.geom functions

update.symbolmap

Update a Graphics Symbol Map.

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Plot Image or Tessellation Using Texture Fill

Text, Arrow or Scale Bar in a Diagram

Separate Multiple Columns of Marks

Extract Pixel Centres as Point Pattern

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Tessellation Delimited by Several Sets

Quadrat counting for a point pattern

Create a Tessellation

Names of Tiles in a Tessellation

triangulate.owin

Decompose Window into Triangles

Quantiles of Weighted Empirical Cumulative Distribution Function

Tessellation Using Polar Coordinates

Distance Between Two Point Patterns

test.crossing.psp

Check Whether Segments Cross

Unstack Each Spatial Object in a List of Objects

Cut margins from rectangle

Place Points Evenly Along Specified Lines

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

Create a Point Matching

pppmatching.object

Class of Point Matchings

weighted.median

Weighted Median, Quantiles or Variance

Rotate a Window

Create A Regular Polygon

Generate a Quadrature Scheme from a Point Pattern

Find Location of Maximum in a Pixel Image

Multidimensional Space-Time Point Pattern

Apply Vector Translation

Reorder Levels of a Factor-Valued Image or Pattern

Rotate a Point Pattern

Apply Numerical Rounding to Spatial Coordinates

summary.splitppp

Summary of a Split Point Pattern

Require a Specific Version of a Package

summary.anylist

Summary of a List of Things

Sample Quantiles of Pixel Image

Convert dataset to another unit of length

Subset of Point Pattern Satisfying A Condition

spatstat.geom-package

The spatstat.geom Package

summary.distfun

Summarizing a Function of Spatial Location

List of Two-Dimensional Spatial Objects

Add Text Labels to Spatial Pattern

spatstat.options

Internal Options in Spatstat Package

Spokes pattern of dummy points

Vertices of a Window

transformquantiles

Transform the Quantiles

Convert Pixel Array Between Different Conventions

Summary of a List of Spatial Objects

Extract the Total Computation Time

Map Duplicate Entries to Unique Entries

Volume of an Object

Compute Areas of Tiles in a Tessellation

Rounding of Pixel Values

Record the Computation Time

Name for Unit of Length