Production version 3.5-0

• Missing or unavailable (NA) spatial objects.
• Interactively identify tiles of a tessellation.
• Remove small holes from a window.
• New options for defining nearest neighbours.
• im.apply handles vector-valued functions.
• Backgrounds for plots of point patterns.
• Concatenate layered objects.
• Connected components of polygonal windows.
• Bug fixes and minor improvements.

Production version 3.4-1

• Nonlinear colour maps and symbol maps.
• Backgrounds for image plots.
• im.apply handles larger datasets.
• quadratcount.ppp supports left-closed, right-open rectangular tiles.
• Minor improvements and bug fixes.

Production version 3.3-6

• Methods for functions which are constant on each tile of a tessellation.

Production version 3.3-5

• Improvements to plotting of images, and arrays of images.
• More control over plotting of colour maps, symbol maps and texture maps.
• hyperframes handle a Surv object as a single column.
• Bug fixes and minor improvements.

Production version 3.3-4

• Tessellations can have any kind of marks.
• More control over default colours.
• Perspective plot of spatial point pattern with numerical marks.
• Improvements to rjitter.ppp

Production version 3.3-0

. spatstat.geom now depends on the new package spatstat.univar
. some functions from spatstat.geom have been moved to spatstat.univar
. improvements to plotting functions and symbol maps
. more support for diagram objects
. some code accelerated

Production version 3.2-5

• Extension of distance transform algorithm.
• Improvement to progress reports.
• Suppress annoying warnings.
• Further bug fix in quadratcount

Production version 3.2-4

• Bug fixes in quadrat counting code
• Connected component transform can now use a 4-connected grid

Production version 3.2-0

• More options for converting polygons to a binary mask.
• More options for controlling pixel size.
• Improvement to progress reports.
• Minor tweaks to package documentation.

Production version 3.1-0

• Methods for [[ and [[<- for hyperframes.
• Colour map for pH values.
• Restrict a colour map to a narrower range of values.
• Integral of a one-dimensional density estimate.