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spatstat.geom (version 2.4-0)

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

64,669

Version

2.4-0

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

March 29th, 2022

Functions in spatstat.geom (2.4-0)

Subset of Quadrature Scheme

Extract or Replace Subset of Point Pattern

Extract or Replace Subset of a List of Things

Extract Subset of Line Segment Pattern

Extract Subset of Window

Extract.layered

Extract or Replace Subset of a Layered Object

Extract.anylist

Extract or Replace Subset of a List of Things

Extract Subset of Image

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Extract Subset of Multidimensional Point Pattern

Minkowski Sum of Windows

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

Apply Affine Transformation To Line Segment Pattern

Apply Affine Transformation To Point Pattern

Check Whether Image Contains NA Values

Orientation Angles of Line Segments

Difference of Disc Areas

Apply Geometrical Transformation To Tessellation

Convert Data to Three-Dimensional Box

List of Objects

Apply Affine Transformation To Pixel Image

Extract or Replace Subset of Tessellation

Apply Affine Transformation To Window

Convert Pixel Image to Function of Coordinates

Combine Two Line Segment Patterns

as.data.frame.tess

Convert Tessellation to Data Frame

Extract or Change the Containing Rectangle of a Spatial Object

Reset Values in Subset of Image

Bounding Box of a Window, Image, or Point Pattern

Convert Pixel Image to Matrix or Array

Convert Pixel Image to Matrix

bounding.box.xy

Convex Hull of Points

Interactively Measure Distance

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Apply Affine Transformation

Fill Plot With Texture

Convert Data to Hyperframe

Morphological Closing

Interactively Define a Polygon

Close Triples of Points

as.data.frame.im

Convert Pixel Image to Data Frame

Test Whether Objects Are Compatible

as.data.frame.owin

Convert Window to Data Frame

Apply Function to Every Neighbourhood in a Point Pattern

Smallest Enclosing Circle

Convert List of Two-Dimensional Spatial Objects

as.function.tess

Convert a Tessellation to a Function

as.function.owin

Convert Window to Indicator Function

Distance to Boundary of Window

Convert and Compare Colours in Different Formats

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Convert Line Segment Pattern to Binary Pixel Mask

Pixel Image Approximation of a Window

Convert Data to Multi-Dimensional Box

Convert Data To Tessellation

Centroid of a window

Three-Dimensional Box

Test Whether Pixel Images Are Compatible

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

Array of Contour Plots

Apply Function to Image Broken Down by Factor

Determine A Common Spatial Domain And Pixel Resolution

Extract or Change the Window of a Spatial Object

Morphological Dilation

crossdist.default

Pairwise distances between two different sets of points

Extract Window of Spatial Object

Area of a Window

Areas of Morphological Dilations

Distance Map as a Function

Elliptical Window.

Endpoints of Line Segment Pattern

Convert Pixel Image from Numeric to Factor

Pairwise distances between two different three-dimensional point patterns

Classify Points in a Point Pattern

Distance Map of Point Pattern

edit.hyperframe

Invoke Text Editor on Hyperframe

Distance Map of Window

Diameter of a Window

Geometrical Calculations for Multi-Dimensional Box

Invoke Text Editor on Spatial Data

Convex Hull of Points

Evaluate Expression Involving Pixel Images

Morphological Erosion of Windows

Make Pixel Images Compatible

Apply a Function to a Point Pattern Broken Down by Factor

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

Interactively Add Points

Intersect Infinite Straight Lines with a Window

Connected Components of Tiles of a Tessellation

Heat Kernel for a One-Dimensional Rod

Make Windows Compatible

Histogram of Pixel Values in an Image

Difference of Disc Areas

Integral of a Pixel Image

Test Whether Points Are Inside A Window

Weil's Convexifying Operation

delaunayDistance

Distance on Delaunay Triangulation

Convert to Pixel Image

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Convert Data To Class ppp

Convert Data To Class psp

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Test Whether An Object Is A Window

Create Colour Scheme for a Range of Numbers

Multi-Dimensional Box

Contour plot of pixel image

edges2triangles

List Triangles in a Graph

Border Region of a Window

Distance Metric Defined by Convex Set

Distance Map of Line Segment Pattern

Convolution of Pixel Images

Generate a Default Pattern of Dummy Points

Extract the Domain of any Spatial Object

List Dihedral Triples in a Graph

Extract or Assign Colour Values in a Colour Map

Buffer Distance Tessellation

Cover Region with Discs

Weighted Empirical Cumulative Distribution Function

Colour Lookup Tables

Hexagonal Grid or Tessellation

Connected Components of a Point Pattern

Connected components

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Convert Data To Layered Object

Pairwise distances

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Pairwise distances between two different point patterns

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

interp.colourmap

Interpolate smoothly between specified colours

Compute Minimum or Maximum Nearest-Neighbour Distance

Convert Data To Class owin

Convert a Window to a Polygonal Window

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Safely Convert Point Pattern Window to Binary Mask

Extract Boundary Edges of a Window.

Fourier Basis Functions

Determine Duplicated Points in a Spatial Point Pattern

Distance to Boundary of Window

Distance to Boundary of Window

framedist.pixels

Distance to Bounding Frame

Add margins to rectangle

Spatial Covariance of a Pixel Image

Make Objects Compatible

Histogram of Values of a Spatial Function

Compute Areas of Tiles in Dirichlet Tessellation

Delaunay Triangulation of Point Pattern

Dirichlet Tessellation of Point Pattern

Find Largest Circle Inside Window

Test Whether Points Are Inside A Multidimensional Box

Mean of Empirical Cumulative Distribution Function

Infinite Straight Lines

Midpoints of Line Segment Pattern

Area of Part of Disc

Circular Window

Distance Metric

Subdivide a Window or Tessellation using a Set of Lines

Interactively Define a Rectangle

Areas of Morphological Erosions

First or Last Part of a Spatial Pattern

Nearest Neighbour Index Map as a Function

Morphological Erosion by a Disc

Check Whether Points Have Close Neighbours

Rectangular grid of points

Spatial Function Class

Close Pairs of Points

Hyper Data Frame

Apply Function Pixelwise to List of Images

Close Pairs of Points in 3 Dimensions

Concatenate x,y Coordinate Vectors

complement.owin

Take Complement of a Window

Class of Images

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Test Whether An Object Is A Pixel Image

Perform Geometric Task using a Specified Metric

Intensity of a Dataset or a Model

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

Empirical Intensity of Point Pattern

Intensity of a Multidimensional Space-Time Point Pattern

Identify Points in a Point Pattern

Intersection of Two Tessellations

Empirical Intensity of Line Segment Pattern

Intersection, Union or Set Subtraction of Windows

Test Whether a Window is Convex

K-th Nearest Point Map

Compute Area of Overlap

Morphological Opening

Pad the Border of a Pixel Image

Convert Window to Binary Mask under Constraints

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Determine Whether One Window is Contained In Another

Create List of Plotting Layers

Test Whether An Object Is Empty

Test Whether A Point Pattern is Marked

Corners of a rectangle

Diameter of an Object

Pairwise distances between two different line segment patterns

Crossing Points of Two Line Segment Patterns

Interpolate a Pixel Image

Geometrical Calculations for Three-Dimensional Box

Compute Quadrature Weights Based on Grid Counts

Exchange X and Y Coordinates

Farthest Distance to Boundary of Window

Intersection Of Boxes Of Arbitrary Dimension

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

Mean and Median of Pixel Values in an Image

Determine Whether an Object is Connected

Test Whether An Object Is A Point Pattern

Create a Pixel Image Object

Determine Type of Window

is.connected.ppp

Determine Whether a Point Pattern is Connected

Add margins to box in any dimension

Identify Segments in a Line Segment Pattern

Test Whether Marks Are Present

Test whether Object is Multitype

Extract Pixel Centres as Point Pattern

Convert Spatial Object to Pixel Image

Lengths of Line Segments

Merge Levels of a Factor

Level Set of a Pixel Image

Methods for three-dimensional point patterns

methods.layered

Methods for Layered Objects

Extract or Replace the Plot Arguments of a Layered Object

Generate a Row or Column Arrangement of Rectangles.

Marks of a Line Segment Pattern

Marks of a Tessellation

Nearest Neighbours Between Two Patterns in 3D

Nearest Neighbours Between Two Patterns in Any Dimensions

Image of Nearest Defined Pixel Value

Find Line Segment Nearest to Each Point

Summarise Marks in Every Neighbourhood in a Point Pattern

nearest.raster.point

Find Pixel Nearest to a Given Point

Distance for a Point Pattern Matching

multiplicity.ppp

Count Multiplicity of Duplicate Points

Methods for Multi-Dimensional Box

Methods for Three-Dimensional Box

Plot a Colour Map

Plot a List of Things

Marks of a Point Pattern

Pairwise Distances in Any Dimensions

Pairwise distances between line segments

Mark of Nearest Neighbour

Pairwise distances in Three Dimensions

Nearest neighbour

Pairwise distances

Make Periodic Copies of a Spatial Pattern

Perimeter Length of Window

plot a Spatial Point Pattern

Methods for Multidimensional Space-Time Point Patterns

plot.pppmatching

Plot a Point Matching

methods.unitname

Methods for Units

Convert Line Segment Pattern to Pixel Image

Quadrature Scheme Based on Pixel Grid

methods.distfun

Geometrical Operations for Distance Functions

Three Dimensional Point Pattern

Methods for Spatial Functions

Create a Point Pattern

Nearest Neighbours Between Two Patterns

Nearest Neighbours in Any Dimensions

Nearest neighbours in three dimensions

Draw Points or Lines on a Surface Viewed in Perspective

Perspective Plot of Pixel Image

pairdist.default

Pairwise distances

Pairwise distances

Find Nearest Point in a Region

Create a Line Segment Pattern

Nearest neighbour distances in three dimensions

Nearest neighbour distances

Count Number of Vertices

Number of Line Segments in a Line Segment Pattern

Create a Window

Quantile Tessellation

Plot a List of Spatial Objects

plot.quadratcount

Plot Quadrat Counts

Create a Point Matching

Cut margins from rectangle

pppmatching.object

Class of Point Matchings

Nearest Neighbour Distances in Any Dimensions

Cartesian Coordinates for a Pixel Raster

Generate Quasirandom Point Pattern in Given Window

Quantiles of Weighted Empirical Cumulative Distribution Function

Create a Tessellation

Rotate or Shift Infinite Lines

Rotate a Pixel Image

Plot a List of Things

Count Number of Geometrical Objects in a Spatial Dataset

Nearest neighbour distances between line segments

Plot a List of Images

Plot a Spatial Window

Plot a Three-Dimensional Point Pattern

Print Progress Reports

project2segment

Move Point To Nearest Line

Apply Scalar Dilation

Subset of Line Segment Satisfying A Condition

Number of Points in a Point Pattern

scaletointerval

Rescale Data to Lie Between Specified Limits

Plot a List of Point Patterns

Plot a Graphics Symbol Map

plot.textstring

Plot a Text String

Plot a Tessellation

plot.texturemap

Plot a Texture Map

Plot a Yardstick or Scale Bar

Divide Region into Quadrats

Quadrat counting for a point pattern

Print Brief Details of a Line Segment Pattern Dataset

plot a Spatial Line Segment Pattern

Plot a Spatial Quadrature Scheme

Print a Quadrature Scheme

Distance Map Using Rectangular Distance Metric

Reflect In Origin

Print Brief Details of an Image

Convert Line Segment Pattern to Another Unit of Length

Require a Specific Version of a Package

Convert dataset to another unit of length

Generate a Quadrature Scheme from a Point Pattern

List of Two-Dimensional Spatial Objects

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

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

Apply Vector Translation To Point Pattern

Detect Numerical Rounding

spatstat.geom-package

The spatstat.geom Package

Convert Window to Pixel Image

Convert Point Pattern to Pixel Image

Place Points Evenly Along Specified Lines

Tessellation Using Polar Coordinates

Multidimensional Space-Time Point Pattern

Estimate window from points alone

run.simplepanel

Run Point-and-Click Interface

Class of Line Segment Patterns

Class of Quadrature Schemes

Random Perturbation of a Point Pattern

Convert Point Pattern to Another Unit of Length

Subset of Point Pattern Satisfying A Condition

Simulate systematic random point pattern

Apply Vector Translation To Line Segment Pattern

summary.anylist

Summary of a List of Things

Apply Vector Translation To Pixel Image

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Summary of a Line Segment Pattern Dataset

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Extract List of Tiles in a Tessellation

spatstat.geom-internal

Internal spatstat.geom functions

Apply Vector Translation To Window

Generate N Uniform Random Points in a Rectangle

plot.hyperframe

Plot Entries in a Hyperframe

Plot a Pixel Image

Convert Pixel Image to Another Unit of Length

Generate grid of parallel lines with random displacement

Convert Window to Another Unit of Length

Graphics Symbol Map

Superimpose Several Geometric Patterns

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Stratified random point pattern

Union of Data and Dummy Points

Read Point Pattern From Data File

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

spatstat.options

Internal Options in Spatstat Package

Name for Unit of Length

Divide Image Into Sub-images

Class of Point Patterns

Summarizing a Quadrature Scheme

Distance Between Two Point Patterns

Extract the Total Computation Time

Record the Computation Time

Summarizing a Pixel Image

Print Brief Details of a Point Pattern Dataset

Print Brief Details of a Spatial Window

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Map Duplicate Entries to Unique Entries

test.crossing.psp

Check Whether Segments Cross

Cut Line Segments Where They Intersect

tweak.colourmap

Change Colour Values in a Colour Map

Spokes pattern of dummy points

Rotate a Window

Sample Quantiles of Pixel Image

update.symbolmap

Update a Graphics Symbol Map.

Tessellation Delimited by Several Sets

Summary of a List of Things

triangulate.owin

Decompose Window into Triangles

Rotate a Point Pattern

Print Names and Version Numbers of Libraries Loaded

summary.splitppp

Summary of a Split Point Pattern

Summary of a List of Spatial Objects

Set Covariance of a Window

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Quasirandom Patterns

Convert Pixel Array Between Different Conventions

summary.distfun

Summarizing a Function of Spatial Location

Apply Vector Translation

Create A Regular Polygon

Determine Which Tile Contains Each Given Point

weighted.median

Weighted Median, Quantiles or Variance

Check For Empty Tiles in a Tessellation

Plot Image or Tessellation Using Texture Fill

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Text, Arrow or Scale Bar in a Diagram

Spatial Dimension of a Dataset

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

Compute Areas of Tiles in a Tessellation

uniquemap.default

Map Duplicate Entries to Unique Entries

Weighted kernel smoother

Reorder Levels of a Factor-Valued Image or Pattern

rescue.rectangle

Convert Window Back To Rectangle

transformquantiles

Transform the Quantiles

Find Location of Maximum in a Pixel Image

Create Colour-Valued Pixel Image

Rotate a Line Segment Pattern

Apply Numerical Rounding to Spatial Coordinates

Simple Point-and-Click Interface Panels

Vertices of a Window

Approximate a Polygon by a Simpler Polygon

Add Text Labels to Spatial Pattern

Divide Point Pattern into Sub-patterns

Summary of a Spatial Window

Summary of a Point Pattern Dataset

Rounding of Pixel Values

Separate Multiple Columns of Marks

Volume of an Object

Divide Multidimensional Point Pattern into Sub-patterns

Names of Tiles in a Tessellation

Extract Unique Points from a Spatial Point Pattern

Test Which Side of Infinite Line a Point Falls On

Weighted Histogram

Unstack Each Spatial Object in a List of Objects