Man pages for spatstat.geom
Geometrical Functionality of the 'spatstat' Family
| add.texture | Fill Plot With Texture |
| affine | Apply Affine Transformation |
| affine.im | Apply Affine Transformation To Pixel Image |
| affine.owin | Apply Affine Transformation To Window |
| affine.ppp | Apply Affine Transformation To Point Pattern |
| affine.psp | Apply Affine Transformation To Line Segment Pattern |
| affine.tess | Apply Geometrical Transformation To Tessellation |
| angles.psp | Orientation Angles of Line Segments |
| anylist | List of Objects |
| anyNA.im | Check Whether Image Contains NA Values |
| append.psp | Combine Two Line Segment Patterns |
| applynbd | Apply Function to Every Neighbourhood in a Point Pattern |
| areaGain | Difference of Disc Areas |
| areaLoss | Difference of Disc Areas |
| area.owin | Area of a Window |
| as.box3 | Convert Data to Three-Dimensional Box |
| as.boxx | Convert Data to Multi-Dimensional Box |
| as.colourmap | Convert to Colour Map |
| as.data.frame.hyperframe | Coerce Hyperframe to Data Frame |
| as.data.frame.im | Convert Pixel Image to Data Frame |
| as.data.frame.owin | Convert Window to Data Frame |
| as.data.frame.ppp | Coerce Point Pattern to a Data Frame |
| as.data.frame.psp | Coerce Line Segment Pattern to a Data Frame |
| as.data.frame.tess | Convert Tessellation to Data Frame |
| as.function.im | Convert Pixel Image to Function of Coordinates |
| as.function.owin | Convert Window to Indicator Function |
| as.function.tess | Convert a Tessellation to a Function |
| as.hyperframe | Convert Data to Hyperframe |
| as.hyperframe.ppx | Extract coordinates and marks of multidimensional point... |
| as.im | Convert to Pixel Image |
| as.layered | Convert Data To Layered Object |
| as.mask | Pixel Image Approximation of a Window |
| as.matrix.im | Convert Pixel Image to Matrix or Array |
| as.matrix.owin | Convert Pixel Image to Matrix |
| as.owin | Convert Data To Class owin |
| as.polygonal | Convert a Window to a Polygonal Window |
| as.ppp | Convert Data To Class ppp |
| as.psp | Convert Data To Class psp |
| as.rectangle | Window Frame |
| as.solist | Convert List of Two-Dimensional Spatial Objects |
| as.tess | Convert Data To Tessellation |
| bdist.pixels | Distance to Boundary of Window |
| bdist.points | Distance to Boundary of Window |
| bdist.tiles | Distance to Boundary of Window |
| beachcolours | Create Colour Scheme for a Range of Numbers |
| border | Border Region of a Window |
| boundingbox | Bounding Box of a Window, Image, or Point Pattern |
| bounding.box.xy | Convex Hull of Points |
| boundingcircle | Smallest Enclosing Circle |
| box3 | Three-Dimensional Box |
| boxx | Multi-Dimensional Box |
| bufftess | Buffer Distance Tessellation |
| by.im | Apply Function to Image Broken Down by Factor |
| by.ppp | Apply a Function to a Point Pattern Broken Down by Factor |
| cbind.hyperframe | Combine Hyperframes by Rows or by Columns |
| centroid.owin | Centroid of a window |
| chop.tess | Subdivide a Window or Tessellation using a Set of Lines |
| clickbox | Interactively Define a Rectangle |
| clickdist | Interactively Measure Distance |
| clickpoly | Interactively Define a Polygon |
| clickppp | Interactively Add Points |
| clip.infline | Intersect Infinite Straight Lines with a Window |
| closepairs | Close Pairs of Points |
| closepairs.pp3 | Close Pairs of Points in 3 Dimensions |
| closetriples | Close Triples of Points |
| closing | Morphological Closing |
| colourmap | Colour Lookup Tables |
| colouroutputs | Extract or Assign Colour Values in a Colour Map |
| colourtools | Convert and Compare Colours in Different Formats |
| commonGrid | Determine A Common Spatial Domain And Pixel Resolution |
| compatible | Test Whether Objects Are Compatible |
| compatible.im | Test Whether Pixel Images Are Compatible |
| complement.owin | Take Complement of a Window |
| concatxy | Concatenate x,y Coordinate Vectors |
| connected | Connected components |
| connected.ppp | Connected Components of a Point Pattern |
| connected.tess | Connected Components of Tiles of a Tessellation |
| contour.im | Contour plot of pixel image |
| contour.imlist | Array of Contour Plots |
| convexhull | Convex Hull |
| convexhull.xy | Convex Hull of Points |
| convexify | Weil's Convexifying Operation |
| convexmetric | Distance Metric Defined by Convex Set |
| convolve.im | Convolution of Pixel Images |
| coords | Extract or Change Coordinates of a Spatial or Spatiotemporal... |
| corners | Corners of a rectangle |
| covering | Cover Region with Discs |
| crossdist | Pairwise distances |
| crossdist.default | Pairwise distances between two different sets of points |
| crossdist.pp3 | Pairwise distances between two different three-dimensional... |
| crossdist.ppp | Pairwise distances between two different point patterns |
| crossdist.ppx | Pairwise Distances Between Two Different Multi-Dimensional... |
| crossdist.psp | Pairwise distances between two different line segment... |
| crossing.psp | Crossing Points of Two Line Segment Patterns |
| cut.im | Convert Pixel Image from Numeric to Factor |
| cut.ppp | Classify Points in a Point Pattern |
| default.dummy | Generate a Default Pattern of Dummy Points |
| default.symbolmap | Default Symbol Map for Plotting a Spatial Pattern |
| default.symbolmap.ppp | Default Symbol Map for Point Pattern |
| delaunay | Delaunay Triangulation of Point Pattern |
| delaunayDistance | Distance on Delaunay Triangulation |
| deltametric | Delta Metric |
| diameter | Diameter of an Object |
| diameter.box3 | Geometrical Calculations for Three-Dimensional Box |
| diameter.boxx | Geometrical Calculations for Multi-Dimensional Box |
| diameter.owin | Diameter of a Window |
| dilated.areas | Areas of Morphological Dilations |
| dilation | Morphological Dilation |
| dirichlet | Dirichlet Tessellation of Point Pattern |
| dirichletAreas | Compute Areas of Tiles in Dirichlet Tessellation |
| dirichletVertices | Vertices and Edges of Dirichlet Tessellation |
| dirichletWeights | Compute Quadrature Weights Based on Dirichlet Tessellation |
| disc | Circular Window |
| discpartarea | Area of Part of Disc |
| discretise | Safely Convert Point Pattern Window to Binary Mask |
| discs | Union of Discs |
| distfun | Distance Map as a Function |
| distmap | Distance Map |
| distmap.owin | Distance Map of Window |
| distmap.ppp | Distance Map of Point Pattern |
| distmap.psp | Distance Map of Line Segment Pattern |
| domain | Extract the Domain of any Spatial Object |
| duplicated.ppp | Determine Duplicated Points in a Spatial Point Pattern |
| edges | Extract Boundary Edges of a Window. |
| edges2triangles | List Triangles in a Graph |
| edges2vees | List Dihedral Triples in a Graph |
| edit.hyperframe | Invoke Text Editor on Hyperframe |
| edit.ppp | Invoke Text Editor on Spatial Data |
| ellipse | Elliptical Window. |
| endpoints.psp | Endpoints of Line Segment Pattern |
| eroded.areas | Areas of Morphological Erosions |
| erosion | Morphological Erosion by a Disc |
| erosionAny | Morphological Erosion of Windows |
| eval.im | Evaluate Expression Involving Pixel Images |
| Extract.anylist | Extract or Replace Subset of a List of Things |
| Extract.hyperframe | Extract or Replace Subset of Hyperframe |
| Extract.im | Extract Subset of Image |
| Extract.layered | Extract or Replace Subset of a Layered Object |
| Extract.listof | Extract or Replace Subset of a List of Things |
| Extract.owin | Extract Subset of Window |
| Extract.ppp | Extract or Replace Subset of Point Pattern |
| Extract.ppx | Extract Subset of Multidimensional Point Pattern |
| Extract.psp | Extract Subset of Line Segment Pattern |
| Extract.quad | Subset of Quadrature Scheme |
| Extract.solist | Extract or Replace Subset of a List of Spatial Objects |
| Extract.splitppp | Extract or Replace Sub-Patterns |
| Extract.tess | Extract or Replace Subset of Tessellation |
| extrapolate.psp | Extrapolate Line Segments to Obtain Infinite Lines |
| fardist | Farthest Distance to Boundary of Window |
| flipxy | Exchange X and Y Coordinates |
| fourierbasis | Fourier Basis Functions |
| Frame | Extract or Change the Containing Rectangle of a Spatial... |
| framedist.pixels | Distance to Bounding Frame |
| funxy | Spatial Function Class |
| gridcentres | Rectangular grid of points |
| gridweights | Compute Quadrature Weights Based on Grid Counts |
| grow.boxx | Add margins to box in any dimension |
| grow.rectangle | Add margins to rectangle |
| harmonise | Make Objects Compatible |
| harmonise.im | Make Pixel Images Compatible |
| harmoniseLevels | Harmonise the levels of several factors, or factor-valued... |
| harmonise.owin | Make Windows Compatible |
| has.close | Check Whether Points Have Close Neighbours |
| headtail | First or Last Part of a Spatial Pattern |
| hextess | Hexagonal Grid or Tessellation |
| hist.funxy | Histogram of Values of a Spatial Function |
| hist.im | Histogram of Pixel Values in an Image |
| hyperframe | Hyper Data Frame |
| identify.ppp | Identify Points in a Point Pattern |
| identify.psp | Identify Segments in a Line Segment Pattern |
| im | Create a Pixel Image Object |
| im.apply | Apply Function Pixelwise to List of Images |
| imcov | Spatial Covariance of a Pixel Image |
| im.object | Class of Images |
| incircle | Find Largest Circle Inside Window |
| infline | Infinite Straight Lines |
| inside.boxx | Test Whether Points Are Inside A Multidimensional Box |
| inside.owin | Test Whether Points Are Inside A Window |
| integral.im | Integral of a Pixel Image |
| intensity | Intensity of a Dataset or a Model |
| intensity.ppp | Empirical Intensity of Point Pattern |
| intensity.ppx | Intensity of a Multidimensional Space-Time Point Pattern |
| intensity.psp | Empirical Intensity of Line Segment Pattern |
| intensity.quadratcount | Intensity Estimates Using Quadrat Counts |
| interp.colourmap | Interpolate smoothly between specified colours |
| interp.im | Interpolate a Pixel Image |
| intersect.boxx | Intersection Of Boxes Of Arbitrary Dimension |
| intersect.owin | Intersection, Union or Set Subtraction of Windows |
| intersect.tess | Intersection of Two Tessellations |
| invoke.metric | Perform Geometric Task using a Specified Metric |
| invoke.symbolmap | Plot Data Using Graphics Symbol Map |
| is.boxx | Recognise a Multi-Dimensional Box |
| is.connected | Determine Whether an Object is Connected |
| is.connected.ppp | Determine Whether a Point Pattern is Connected |
| is.convex | Test Whether a Window is Convex |
| is.empty | Test Whether An Object Is Empty |
| is.im | Test Whether An Object Is A Pixel Image |
| is.linim | Test Whether an Object is a Pixel Image on a Linear Network |
| is.linnet | Test Whether An Object Is A Linear Network |
| is.lpp | Test Whether An Object Is A Point Pattern on a Linear Network |
| is.marked | Test Whether Marks Are Present |
| is.marked.ppp | Test Whether A Point Pattern is Marked |
| is.multitype | Test whether Object is Multitype |
| is.multitype.ppp | Test Whether A Point Pattern is Multitype |
| is.owin | Test Whether An Object Is A Window |
| is.ppp | Test Whether An Object Is A Point Pattern |
| is.rectangle | Determine Type of Window |
| is.subset.owin | Determine Whether One Window is Contained In Another |
| layered | Create List of Plotting Layers |
| layerplotargs | Extract or Replace the Plot Arguments of a Layered Object |
| layout.boxes | Generate a Row or Column Arrangement of Rectangles. |
| lengths_psp | Lengths of Line Segments |
| levelset | Level Set of a Pixel Image |
| lut | Lookup Tables |
| marks | Marks of a Point Pattern |
| marks.psp | Marks of a Line Segment Pattern |
| markstat | Summarise Marks in Every Neighbourhood in a Point Pattern |
| marks.tess | Marks of a Tessellation |
| matchingdist | Distance for a Point Pattern Matching |
| Math.im | S3 Group Generic methods for images |
| Math.imlist | S3 Group Generic methods for List of Images |
| maxnndist | Compute Minimum or Maximum Nearest-Neighbour Distance |
| mean.im | Mean and Median of Pixel Values in an Image |
| mergeLevels | Merge Levels of a Factor |
| methods.box3 | Methods for Three-Dimensional Box |
| methods.boxx | Methods for Multi-Dimensional Box |
| methods.distfun | Geometrical Operations for Distance Functions |
| methods.funxy | Methods for Spatial Functions |
| methods.layered | Methods for Layered Objects |
| methods.pp3 | Methods for three-dimensional point patterns |
| methods.ppx | Methods for Multidimensional Space-Time Point Patterns |
| methods.unitname | Methods for Units |
| metric.object | Distance Metric |
| midpoints.psp | Midpoints of Line Segment Pattern |
| MinkowskiSum | Minkowski Sum of Windows |
| multiplicity.ppp | Count Multiplicity of Duplicate Points |
| nearest.raster.point | Find Pixel Nearest to a Given Point |
| nearestsegment | Find Line Segment Nearest to Each Point |
| nearestValue | Image of Nearest Defined Pixel Value |
| nestsplit | Nested Split |
| nncross | Nearest Neighbours Between Two Patterns |
| nncross.pp3 | Nearest Neighbours Between Two Patterns in 3D |
| nncross.ppx | Nearest Neighbours Between Two Patterns in Any Dimensions |
| nndist | Nearest neighbour distances |
| nndist.pp3 | Nearest neighbour distances in three dimensions |
| nndist.ppx | Nearest Neighbour Distances in Any Dimensions |
| nndist.psp | Nearest neighbour distances between line segments |
| nnfun | Nearest Neighbour Index Map as a Function |
| nnmap | K-th Nearest Point Map |
| nnmark | Mark of Nearest Neighbour |
| nnwhich | Nearest neighbour |
| nnwhich.pp3 | Nearest neighbours in three dimensions |
| nnwhich.ppx | Nearest Neighbours in Any Dimensions |
| nobjects | Count Number of Geometrical Objects in a Spatial Dataset |
| npoints | Number of Points in a Point Pattern |
| nsegments | Number of Line Segments in a Line Segment Pattern |
| nvertices | Count Number of Vertices |
| opening | Morphological Opening |
| overlap.owin | Compute Area of Overlap |
| owin | Create a Window |
| owin2mask | Convert Window to Binary Mask under Constraints |
| owin.object | Class owin |
| padimage | Pad the Border of a Pixel Image |
| pairdist | Pairwise distances |
| pairdist.default | Pairwise distances |
| pairdist.pp3 | Pairwise distances in Three Dimensions |
| pairdist.ppp | Pairwise distances |
| pairdist.ppx | Pairwise Distances in Any Dimensions |
| pairdist.psp | Pairwise distances between line segments |
| perimeter | Perimeter Length of Window |
| periodify | Make Periodic Copies of a Spatial Pattern |
| persp.im | Perspective Plot of Pixel Image |
| perspPoints | Draw Points or Lines on a Surface Viewed in Perspective |
| persp.ppp | Perspective Plot of Marked Point Pattern |
| pHcolourmap | Colour Map for pH Values |
| pixelcentres | Extract Pixel Centres as Point Pattern |
| pixellate | Convert Spatial Object to Pixel Image |
| pixellate.owin | Convert Window to Pixel Image |
| pixellate.ppp | Convert Point Pattern to Pixel Image |
| pixellate.psp | Convert Line Segment Pattern to Pixel Image |
| pixelquad | Quadrature Scheme Based on Pixel Grid |
| plot.anylist | Plot a List of Things |
| plot.colourmap | Plot a Colour Map |
| plot.hyperframe | Plot Entries in a Hyperframe |
| plot.im | Plot a Pixel Image |
| plot.imlist | Plot a List of Images |
| plot.layered | Layered Plot |
| plot.listof | Plot a List of Things |
| plot.onearrow | Plot an Arrow |
| plot.owin | Plot a Spatial Window |
| plot.pp3 | Plot a Three-Dimensional Point Pattern |
| plot.ppp | plot a Spatial Point Pattern |
| plot.pppmatching | Plot a Point Matching |
| plot.psp | plot a Spatial Line Segment Pattern |
| plot.quad | Plot a Spatial Quadrature Scheme |
| plot.quadratcount | Plot Quadrat Counts |
| plot.solist | Plot a List of Spatial Objects |
| plot.splitppp | Plot a List of Point Patterns |
| plot.symbolmap | Plot a Graphics Symbol Map |
| plot.tess | Plot a Tessellation |
| plot.textstring | Plot a Text String |
| plot.texturemap | Plot a Texture Map |
| plot.yardstick | Plot a Yardstick or Scale Bar |
| pointsOnLines | Place Points Evenly Along Specified Lines |
| polartess | Tessellation Using Polar Coordinates |
| pp3 | Three Dimensional Point Pattern |
| ppp | Create a Point Pattern |
| pppdist | Distance Between Two Point Patterns |
| pppmatching | Create a Point Matching |
| pppmatching.object | Class of Point Matchings |
| ppp.object | Class of Point Patterns |
| ppx | Multidimensional Space-Time Point Pattern |
| print.im | Print Brief Details of an Image |
| print.owin | Print Brief Details of a Spatial Window |
| print.ppp | Print Brief Details of a Point Pattern Dataset |
| print.psp | Print Brief Details of a Line Segment Pattern Dataset |
| print.quad | Print a Quadrature Scheme |
| progressreport | Print Progress Reports |
| project2segment | Move Point To Nearest Line |
| project2set | Find Nearest Point in a Region |
| psp | Create a Line Segment Pattern |
| psp2mask | Convert Line Segment Pattern to Binary Pixel Mask |
| psp.object | Class of Line Segment Patterns |
| quad.object | Class of Quadrature Schemes |
| quadratcount | Quadrat counting for a point pattern |
| quadrats | Divide Region into Quadrats |
| quadscheme | Generate a Quadrature Scheme from a Point Pattern |
| quadscheme.logi | Generate a Logistic Regression Quadrature Scheme from a Point... |
| quantess | Quantile Tessellation |
| quantilefun.im | Quantile Function for Images |
| quantile.im | Sample Quantiles of Pixel Image |
| quasirandom | Quasirandom Patterns |
| raster.x | Cartesian Coordinates for a Pixel Raster |
| rectdistmap | Distance Map Using Rectangular Distance Metric |
| reflect | Reflect In Origin |
| regularpolygon | Create A Regular Polygon |
| relevel.im | Reorder Levels of a Factor-Valued Image or Pattern |
| Replace.im | Reset Values in Subset of Image |
| requireversion | Require a Specific Version of a Package |
| rescale | Convert dataset to another unit of length |
| rescale.im | Convert Pixel Image to Another Unit of Length |
| rescale.owin | Convert Window to Another Unit of Length |
| rescale.ppp | Convert Point Pattern to Another Unit of Length |
| rescale.psp | Convert Line Segment Pattern to Another Unit of Length |
| rescue.rectangle | Convert Window Back To Rectangle |
| restrict.colourmap | Restrict a Colour Map to a Subset of Values |
| rexplode | Explode a Point Pattern by Displacing Duplicated Points |
| rgbim | Create Colour-Valued Pixel Image |
| ripras | Estimate window from points alone |
| rjitter | Random Perturbation of a Point Pattern |
| rlinegrid | Generate grid of parallel lines with random displacement |
| rotate | Rotate |
| rotate.im | Rotate a Pixel Image |
| rotate.infline | Rotate or Shift Infinite Lines |
| rotate.owin | Rotate a Window |
| rotate.ppp | Rotate a Point Pattern |
| rotate.psp | Rotate a Line Segment Pattern |
| rounding.ppp | Detect Numerical Rounding |
| round.ppp | Apply Numerical Rounding to Spatial Coordinates |
| rQuasi | Generate Quasirandom Point Pattern in Given Window |
| rsyst | Simulate systematic random point pattern |
| runifrect | Generate N Uniform Random Points in a Rectangle |
| run.simplepanel | Run Point-and-Click Interface |
| scalardilate | Apply Scalar Dilation |
| scaletointerval | Rescale Data to Lie Between Specified Limits |
| scanpp | Read Point Pattern From Data File |
| selfcrossing.psp | Crossing Points in a Line Segment Pattern |
| selfcut.psp | Cut Line Segments Where They Intersect |
| sessionLibs | Print Names and Version Numbers of Libraries Loaded |
| setcov | Set Covariance of a Window |
| shift | Apply Vector Translation |
| shift.im | Apply Vector Translation To Pixel Image |
| shift.owin | Apply Vector Translation To Window |
| shift.ppp | Apply Vector Translation To Point Pattern |
| shift.ppx | Apply Vector Translation To Box Or Point Pattern In Arbitrary... |
| shift.psp | Apply Vector Translation To Line Segment Pattern |
| sidelengths.owin | Side Lengths of Enclosing Rectangle of a Window |
| simplepanel | Simple Point-and-Click Interface Panels |
| simplify.owin | Approximate a Polygon by a Simpler Polygon |
| solapply | Apply a Function Over a List and Obtain a List of Objects |
| solist | List of Two-Dimensional Spatial Objects |
| solutionset | Evaluate Logical Expression Involving Pixel Images and Return... |
| spatdim | Spatial Dimension of a Dataset |
| spatstat.geom-deprecated | Deprecated spatstat.geom functions |
| spatstat.geom-internal | Internal spatstat.geom functions |
| spatstat.geom-package | The spatstat.geom Package |
| spatstat.options | Internal Options in Spatstat Package |
| split.hyperframe | Divide Hyperframe Into Subsets and Reassemble |
| split.im | Divide Image Into Sub-images |
| split.ppp | Divide Point Pattern into Sub-patterns |
| split.ppx | Divide Multidimensional Point Pattern into Sub-patterns |
| spokes | Spokes pattern of dummy points |
| square | Square Window |
| stratrand | Stratified random point pattern |
| subset.hyperframe | Subset of Hyperframe Satisfying A Condition |
| subset.ppp | Subset of Point Pattern Satisfying A Condition |
| subset.psp | Subset of Line Segment Satisfying A Condition |
| summary.anylist | Summary of a List of Things |
| summary.distfun | Summarizing a Function of Spatial Location |
| summary.im | Summarizing a Pixel Image |
| summary.listof | Summary of a List of Things |
| summary.owin | Summary of a Spatial Window |
| summary.ppp | Summary of a Point Pattern Dataset |
| summary.psp | Summary of a Line Segment Pattern Dataset |
| summary.quad | Summarizing a Quadrature Scheme |
| summary.solist | Summary of a List of Spatial Objects |
| summary.splitppp | Summary of a Split Point Pattern |
| superimpose | Superimpose Several Geometric Patterns |
| symbolmap | Graphics Symbol Map |
| tess | Create a Tessellation |
| test.crossing.psp | Check Whether Segments Cross |
| text.ppp | Add Text Labels to Spatial Pattern |
| texturemap | Texture Map |
| textureplot | Plot Image or Tessellation Using Texture Fill |
| tile.areas | Compute Areas of Tiles in a Tessellation |
| tileindex | Determine Which Tile Contains Each Given Point |
| tilenames | Names of Tiles in a Tessellation |
| tiles | Extract List of Tiles in a Tessellation |
| tiles.empty | Check For Empty Tiles in a Tessellation |
| timed | Record the Computation Time |
| timeTaken | Extract the Total Computation Time |
| transmat | Convert Pixel Array Between Different Conventions |
| triangulate.owin | Decompose Window into Triangles |
| trim.rectangle | Cut margins from rectangle |
| tweak.colourmap | Change Colour Values in a Colour Map |
| union.quad | Union of Data and Dummy Points |
| uniquemap.ppp | Map Duplicate Entries to Unique Entries |
| unique.ppp | Extract Unique Points from a Spatial Point Pattern |
| unitname | Name for Unit of Length |
| unmark | Remove Marks |
| unstack.ppp | Separate Multiple Columns of Marks |
| unstack.solist | Unstack Each Spatial Object in a List of Objects |
| update.symbolmap | Update a Graphics Symbol Map. |
| venn.tess | Tessellation Delimited by Several Sets |
| vertices | Vertices of a Window |
| volume | Volume of an Object |
| where.max | Find Location of Maximum in a Pixel Image |
| whichhalfplane | Test Which Side of Infinite Line a Point Falls On |
| Window | Extract or Change the Window of a Spatial Object |
| Window.tess | Extract Window of Spatial Object |
| with.hyperframe | Evaluate an Expression in Each Row of a Hyperframe |
| yardstick | Text, Arrow or Scale Bar in a Diagram |
| zapsmall.im | Rounding of Pixel Values |
