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spatstat.geom (version 2.3-1)

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

66,163

Version

2.3-1

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

December 10th, 2021

Functions in spatstat.geom (2.3-1)

Extract Subset of Window

Extract Subset of Image

Extract.layered

Extract or Replace Subset of a Layered Object

Extract or Replace Subset of Point Pattern

Extract or Replace Subset of a List of Things

Extract Subset of Multidimensional Point Pattern

Extract.anylist

Extract or Replace Subset of a List of Things

Subset of Quadrature Scheme

Extract.hyperframe

Extract or Replace Subset of Hyperframe

Extract Subset of Line Segment Pattern

Extract or Replace Subset of a List of Spatial Objects

Extract.splitppp

Extract or Replace Sub-Patterns

Extract Window of Spatial Object

Fill Plot With Texture

Apply Affine Transformation

Extract or Change the Window of a Spatial Object

Check Whether Image Contains NA Values

List of Objects

as.data.frame.owin

Convert Window to Data Frame

as.data.frame.im

Convert Pixel Image to Data Frame

Orientation Angles of Line Segments

Convert Data to Three-Dimensional Box

S3 Group Generic methods for images

Convert Data to Multi-Dimensional Box

Apply Geometrical Transformation To Tessellation

Difference of Disc Areas

S3 Group Generic methods for List of Images

Convert Pixel Image to Function of Coordinates

as.data.frame.tess

Convert Tessellation to Data Frame

Extract or Replace Subset of Tessellation

Convert to Pixel Image

Minkowski Sum of Windows

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Extract or Change the Containing Rectangle of a Spatial Object

Apply Affine Transformation To Point Pattern

as.data.frame.hyperframe

Coerce Hyperframe to Data Frame

Apply Affine Transformation To Line Segment Pattern

Difference of Disc Areas

Convert Data to Hyperframe

Pixel Image Approximation of a Window

Area of a Window

Convert Pixel Image to Matrix or Array

as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern

Convert Data To Class owin

Apply a Function to a Point Pattern Broken Down by Factor

Apply Function to Image Broken Down by Factor

Convert Pixel Image to Matrix

Convert Data To Tessellation

Convert Data To Layered Object

Convert Line Segment Pattern to Binary Pixel Mask

Convert Data To Class ppp

Create Colour Scheme for a Range of Numbers

Border Region of a Window

Reset Values in Subset of Image

Apply Affine Transformation To Pixel Image

Convert Data To Class psp

bounding.box.xy

Convex Hull of Points

Bounding Box of a Window, Image, or Point Pattern

Convert and Compare Colours in Different Formats

Apply Affine Transformation To Window

Combine Two Line Segment Patterns

Multi-Dimensional Box

Apply Function to Every Neighbourhood in a Point Pattern

Distance to Boundary of Window

Buffer Distance Tessellation

as.function.owin

Convert Window to Indicator Function

as.function.tess

Convert a Tessellation to a Function

Convert List of Two-Dimensional Spatial Objects

Close Pairs of Points

Interactively Measure Distance

Close Pairs of Points in 3 Dimensions

Determine A Common Spatial Domain And Pixel Resolution

Interactively Define a Polygon

Close Triples of Points

Morphological Closing

Distance to Boundary of Window

Contour plot of pixel image

Connected Components of Tiles of a Tessellation

Convert a Window to a Polygonal Window

Cover Region with Discs

Distance to Boundary of Window

Centroid of a window

Smallest Enclosing Circle

cbind.hyperframe

Combine Hyperframes by Rows or by Columns

Three-Dimensional Box

delaunayDistance

Distance on Delaunay Triangulation

Pairwise distances

Interactively Add Points

complement.owin

Take Complement of a Window

Intersect Infinite Straight Lines with a Window

Diameter of an Object

Geometrical Calculations for Three-Dimensional Box

Concatenate x,y Coordinate Vectors

Connected Components of a Point Pattern

Connected components

Subdivide a Window or Tessellation using a Set of Lines

Generate a Default Pattern of Dummy Points

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern

Pairwise distances between two different three-dimensional point patterns

crossdist.default

Pairwise distances between two different sets of points

Delaunay Triangulation of Point Pattern

Pairwise distances between two different point patterns

Corners of a rectangle

dirichletVertices

Vertices and Edges of Dirichlet Tessellation

Crossing Points of Two Line Segment Patterns

Distance Map of Line Segment Pattern

Pairwise distances between two different line segment patterns

Extract or Assign Colour Values in a Colour Map

List Dihedral Triples in a Graph

Colour Lookup Tables

Extract the Domain of any Spatial Object

Interactively Define a Rectangle

edges2triangles

List Triangles in a Graph

Rectangular grid of points

Elliptical Window.

Endpoints of Line Segment Pattern

Fourier Basis Functions

Test Whether Objects Are Compatible

Distance Metric Defined by Convex Set

Test Whether Pixel Images Are Compatible

Array of Contour Plots

Convolution of Pixel Images

Areas of Morphological Dilations

Morphological Dilation

Geometrical Calculations for Multi-Dimensional Box

Safely Convert Point Pattern Window to Binary Mask

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns

Convex Hull of Points

Convert Pixel Image from Numeric to Factor

Weil's Convexifying Operation

Diameter of a Window

dirichletWeights

Compute Quadrature Weights Based on Dirichlet Tessellation

Distance Map as a Function

Make Windows Compatible

Spatial Function Class

edit.hyperframe

Invoke Text Editor on Hyperframe

Invoke Text Editor on Spatial Data

Add margins to box in any dimension

Heat Kernel for a One-Dimensional Rod

Check Whether Points Have Close Neighbours

Morphological Erosion of Windows

Classify Points in a Point Pattern

Intensity of a Multidimensional Space-Time Point Pattern

Compute Quadrature Weights Based on Grid Counts

Empirical Intensity of Point Pattern

Evaluate Expression Involving Pixel Images

Compute Areas of Tiles in Dirichlet Tessellation

Dirichlet Tessellation of Point Pattern

Circular Window

Hyper Data Frame

Class of Images

Add margins to rectangle

Distance Map of Window

Determine Duplicated Points in a Spatial Point Pattern

Farthest Distance to Boundary of Window

Extract Boundary Edges of a Window.

Exchange X and Y Coordinates

Distance Map of Point Pattern

First or Last Part of a Spatial Pattern

Intersection of Two Tessellations

Test Whether Points Are Inside A Multidimensional Box

Perform Geometric Task using a Specified Metric

Image of Nearest Defined Pixel Value

Test Whether Marks Are Present

Spatial Covariance of a Pixel Image

nearest.raster.point

Find Pixel Nearest to a Given Point

Make Objects Compatible

Test Whether A Point Pattern is Marked

Area of Part of Disc

is.connected.ppp

Determine Whether a Point Pattern is Connected

Interpolate a Pixel Image

interp.colourmap

Interpolate smoothly between specified colours

Empirical Intensity of Line Segment Pattern

Make Pixel Images Compatible

intensity.quadratcount

Intensity Estimates Using Quadrat Counts

Create a Pixel Image Object

Apply Function Pixelwise to List of Images

Test Whether Points Are Inside A Window

Find Largest Circle Inside Window

invoke.symbolmap

Plot Data Using Graphics Symbol Map

Hexagonal Grid or Tessellation

Nearest Neighbours in Any Dimensions

Count Number of Geometrical Objects in a Spatial Dataset

Areas of Morphological Erosions

Test Whether a Window is Convex

Histogram of Values of a Spatial Function

Marks of a Point Pattern

extrapolate.psp

Extrapolate Line Segments to Obtain Infinite Lines

Weighted Empirical Cumulative Distribution Function

Determine Whether an Object is Connected

Morphological Erosion by a Disc

Pairwise distances

Infinite Straight Lines

Pairwise Distances in Any Dimensions

Histogram of Pixel Values in an Image

Make Periodic Copies of a Spatial Pattern

Intersection Of Boxes Of Arbitrary Dimension

Intersection, Union or Set Subtraction of Windows

Test Whether An Object Is A Point Pattern

Test Whether An Object Is Empty

Identify Points in a Point Pattern

Test Whether An Object Is A Pixel Image

Intensity of a Dataset or a Model

Integral of a Pixel Image

Test Whether An Object Is A Window

Identify Segments in a Line Segment Pattern

Marks of a Line Segment Pattern

Determine Type of Window

Generate a Row or Column Arrangement of Rectangles.

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

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

Create List of Plotting Layers

Determine Whether One Window is Contained In Another

Extract or Replace the Plot Arguments of a Layered Object

methods.layered

Methods for Layered Objects

Methods for Spatial Functions

Lengths of Line Segments

Test whether Object is Multitype

Marks of a Tessellation

Mean and Median of Pixel Values in an Image

Mean of Empirical Cumulative Distribution Function

Distance for a Point Pattern Matching

Level Set of a Pixel Image

methods.unitname

Methods for Units

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Nearest neighbour

Compute Minimum or Maximum Nearest-Neighbour Distance

Nearest Neighbours Between Two Patterns in 3D

Nearest neighbours in three dimensions

Nearest Neighbours Between Two Patterns

Distance Metric

Summarise Marks in Every Neighbourhood in a Point Pattern

Convert Window to Pixel Image

Plot a Pixel Image

Convert Spatial Object to Pixel Image

Plot a Yardstick or Scale Bar

Plot a List of Images

Place Points Evenly Along Specified Lines

Print Brief Details of a Point Pattern Dataset

Plot a List of Things

multiplicity.ppp

Count Multiplicity of Duplicate Points

Perspective Plot of Pixel Image

Nearest neighbour distances in three dimensions

Nearest Neighbour Index Map as a Function

Nearest neighbour distances between line segments

Number of Points in a Point Pattern

Midpoints of Line Segment Pattern

Methods for Multidimensional Space-Time Point Patterns

Methods for Three-Dimensional Box

Methods for three-dimensional point patterns

Merge Levels of a Factor

Pad the Border of a Pixel Image

Pairwise distances

Number of Line Segments in a Line Segment Pattern

Quadrature Scheme Based on Pixel Grid

Methods for Multi-Dimensional Box

Nearest Neighbours Between Two Patterns in Any Dimensions

Compute Area of Overlap

Plot a List of Things

Nearest neighbour distances

methods.distfun

Geometrical Operations for Distance Functions

Find Line Segment Nearest to Each Point

Create a Window

Plot a Spatial Window

Plot a Graphics Symbol Map

Plot a Tessellation

Create a Point Pattern

Class of Point Patterns

Pairwise distances between line segments

Nearest Neighbour Distances in Any Dimensions

Perimeter Length of Window

Print a Quadrature Scheme

Draw Points or Lines on a Surface Viewed in Perspective

plot.texturemap

Plot a Texture Map

Create a Point Matching

Print Brief Details of a Line Segment Pattern Dataset

quadscheme.logi

Generate a Logistic Regression Quadrature Scheme from a Point Pattern

Distance Between Two Point Patterns

plot.textstring

Plot a Text String

Quantiles of Weighted Empirical Cumulative Distribution Function

K-th Nearest Point Map

Extract Pixel Centres as Point Pattern

Plot a Spatial Quadrature Scheme

Require a Specific Version of a Package

Print Progress Reports

Reorder Levels of a Factor-Valued Image or Pattern

Generate grid of parallel lines with random displacement

Random Perturbation of a Point Pattern

Quantile Tessellation

Rotate a Line Segment Pattern

Rotate a Point Pattern

Reflect In Origin

Print Names and Version Numbers of Libraries Loaded

Set Covariance of a Window

Mark of Nearest Neighbour

Morphological Opening

Count Number of Vertices

plot.quadratcount

Plot Quadrat Counts

Spatial Dimension of a Dataset

pairdist.default

Pairwise distances

pppmatching.object

Class of Point Matchings

project2segment

Move Point To Nearest Line

Plot a Three-Dimensional Point Pattern

Multidimensional Space-Time Point Pattern

Convert Window to Binary Mask under Constraints

Sample Quantiles of Pixel Image

Create Colour-Valued Pixel Image

Estimate window from points alone

Create A Regular Polygon

Pairwise distances in Three Dimensions

Convert Point Pattern to Pixel Image

Convert Line Segment Pattern to Pixel Image

Rotate a Pixel Image

Apply Numerical Rounding to Spatial Coordinates

plot.hyperframe

Plot Entries in a Hyperframe

Plot a Colour Map

Apply Vector Translation To Window

Detect Numerical Rounding

spatstat.geom-deprecated

Deprecated spatstat.geom functions

Apply Vector Translation To Point Pattern

Divide Image Into Sub-images

Find Nearest Point in a Region

plot a Spatial Point Pattern

plot a Spatial Line Segment Pattern

plot.pppmatching

Plot a Point Matching

Plot a List of Point Patterns

Tessellation Using Polar Coordinates

Plot a List of Spatial Objects

Stratified random point pattern

Print Brief Details of an Image

Summary of a Point Pattern Dataset

Quadrat counting for a point pattern

Extract the Total Computation Time

Check For Empty Tiles in a Tessellation

Class of Quadrature Schemes

Find Location of Maximum in a Pixel Image

Convert Window to Another Unit of Length

Summary of a Line Segment Pattern Dataset

scaletointerval

Rescale Data to Lie Between Specified Limits

Print Brief Details of a Spatial Window

Test Which Side of Infinite Line a Point Falls On

Divide Region into Quadrats

Read Point Pattern From Data File

Generate a Quadrature Scheme from a Point Pattern

spatstat.geom-internal

Internal spatstat.geom functions

spatstat.geom-package

The spatstat.geom Package

spatstat.options

Internal Options in Spatstat Package

Cartesian Coordinates for a Pixel Raster

Generate N Uniform Random Points in a Rectangle

Create a Line Segment Pattern

Three Dimensional Point Pattern

Convert Point Pattern to Another Unit of Length

Divide Point Pattern into Sub-patterns

Convert Line Segment Pattern to Another Unit of Length

split.hyperframe

Divide Hyperframe Into Subsets and Reassemble

Distance Map Using Rectangular Distance Metric

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Apply Scalar Dilation

rescue.rectangle

Convert Window Back To Rectangle

Class of Line Segment Patterns

sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window

Cut Line Segments Where They Intersect

Quasirandom Patterns

Union of Data and Dummy Points

Plot Image or Tessellation Using Texture Fill

Spokes pattern of dummy points

Simple Point-and-Click Interface Panels

Divide Multidimensional Point Pattern into Sub-patterns

Compute Areas of Tiles in a Tessellation

summary.anylist

Summary of a List of Things

Subset of Line Segment Satisfying A Condition

Convert Pixel Array Between Different Conventions

Determine Which Tile Contains Each Given Point

triangulate.owin

Decompose Window into Triangles

Generate Quasirandom Point Pattern in Given Window

Convert dataset to another unit of length

Convert Pixel Image to Another Unit of Length

Rotate or Shift Infinite Lines

Weighted kernel smoother

summary.distfun

Summarizing a Function of Spatial Location

test.crossing.psp

Check Whether Segments Cross

Summarizing a Pixel Image

Record the Computation Time

Add Text Labels to Spatial Pattern

Separate Multiple Columns of Marks

transformquantiles

Transform the Quantiles

Tessellation Delimited by Several Sets

Vertices of a Window

Extract Unique Points from a Spatial Point Pattern

Rotate a Window

Apply Vector Translation To Box Or Point Pattern In Arbitrary Dimension

Apply Vector Translation To Line Segment Pattern

Approximate a Polygon by a Simpler Polygon

Summary of a List of Things

Subset of Point Pattern Satisfying A Condition

Simulate systematic random point pattern

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

subset.hyperframe

Subset of Hyperframe Satisfying A Condition

Summary of a Spatial Window

Superimpose Several Geometric Patterns

summary.splitppp

Summary of a Split Point Pattern

Cut margins from rectangle

uniquemap.default

Map Duplicate Entries to Unique Entries

List of Two-Dimensional Spatial Objects

Apply Vector Translation

Apply Vector Translation To Pixel Image

run.simplepanel

Run Point-and-Click Interface

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

Weighted Histogram

Map Duplicate Entries to Unique Entries

Summary of a List of Spatial Objects

Summarizing a Quadrature Scheme

tweak.colourmap

Change Colour Values in a Colour Map

with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe

Graphics Symbol Map

Names of Tiles in a Tessellation

Unstack Each Spatial Object in a List of Objects

Create a Tessellation

update.symbolmap

Update a Graphics Symbol Map.

Extract List of Tiles in a Tessellation

Volume of an Object

weighted.median

Weighted Median, Quantiles or Variance

Name for Unit of Length

Text, Arrow or Scale Bar in a Diagram

Rounding of Pixel Values