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grid.pattern_weave() adds the new units parameter that most other “geometry” pattern functions received in gridpattern v1.2.1.units parameter if set to a value different from the “snpc” default (#82).type = "18.18.3*" the size of the eighteen-sided polygons have been increased a teeny bit and this polygon tiling should look a bit cleaner.The following “placeholder” pattern updates (#83):
The following placeholder pattern names are now serviced by lucidinternets.com:
The following placeholder pattern names have been removed since their associated web service no longer works:
Fixes a regression for the “placeholderbw” name where it redirected to the “segal” name instead of “placeholder”.
type for the “placeholder” pattern is now “bear” instead of “kitten”. Explicitly set type = "kitten" to continue to use the “kitten” placeholder but note that although the “kitten” placeholder website isn’t completely down it has been buggy recently (#73).patternFill() wraps patternGrob() to return a grid::pattern() fill object (#70).fill to be pattern fills (#67).units parameter to set which grid::unit() to use for the the spacing, xoffset, and yoffset parameters (and for the “wave” pattern also the amplitude and frequency parameters) (#58). By default it will continue to be “snpc” units but can now be changed to “cm”, “in”, etc.update_alpha() updates fill colour and/or pattern transparency.
ggplot2::fill_alpha() by @teunbrand.{ggplot2} or {scales}.usethis::use_standalone("trevorld/gridpattern", "standalone-update_alpha.R") or simply copying standalone-update_alpha.R into your R directory and adding grDevices, grid, and rlang to the Imports of your DESCRIPTION file.grid.pattern_fill() which draws a simple fill pattern.For completeness there is now a grid.pattern_none() corresponding to the previously supported “none” pattern which draws nothing.
wave pattern no longer quietly and incorrectly ignores the frequency parameter. The effective wavelength of the wave pattern is now 1 / frequency instead of spacing. However frequency will continue to default to 1 / spacing.clippingPathGrob() can now more efficiently compute a rasterGrob() approximation via ragg::agg_capture() and for png_device functions that support the clipping path feature such aspng(type = "cairo")(#74).alphaMaskGrob() can now more efficiently compute a rasterGrob() approximation for png_device functions that support the alpha mask feature such aspng(type = "cairo")(#75).alphaMaskGrob() and clippingPathGrob() now switch back to the previously open graphics device if they open and close any new graphics devices.pdf() that can’t handle the playing cards Unicode glyphs (#68).reset_image_cache() resets the image cache used by grid.pattern_image() and grid.pattern_placeholder() to store images (#63).guess_has_R4.1_features() is now available as a “standalone” file. You may copy its source under the permissive MIT No Attribution (MIT-0) license into your own R package by either using usethis::use_standalone("trevorld/gridpattern", "standalone-guess_has_R4.1_features.R") or simply copying standalone-guess_has_R4.1_features.R into your R directory and adding grDevices and utils to the Imports of your DESCRIPTION file.{vdiffr} has been updated to at least v1.0.6 (released 2023-08-25) then guess_has_R4.1_features() should now always correctly guess R4.1 feature support for the svglite::svglite() and vdiffr:::svglite() graphics devices.convert_polygon_sf_to_polygon_df() will now be a bit more quiet (throw WARNINGs less often).guess_has_R4.1_features() can now also take advantage if dev.capabilities() explicitly indicates that a feature is not supported in active graphics device.{ggplot2} one may now use the parameter linewidth to set polygon/path line widths in grid.pattern_circle(), grid.pattern_crosshatch(), grid.pattern_pch(), grid.pattern_polygon_tiling(), grid.pattern_regular_polygon(), grid.pattern_stripe(), grid.pattern_rose(), grid.pattern_wave(), and grid.pattern_weave(). For backwards compatibility one may continue to use size as well. Continue to use size (or gp) to set the fontsize in grid.pattern_text(). Both pattern_linewidth and pattern_size will be available for use in custom patterns (#57).grid.pattern_image() with type = "tile" (#47). Additionally grid.pattern_image() now supports gravity argument when type = "tile".If the active graphics device has also implemented the new R 4.2 dev.capabilities() support then guess_has_R4.1_features() can now better guess R 4.1 graphic feature support when called within R 4.2.
guess_has_R4.1_features() can now better guess R 4.1 graphic feature support in the {grDevices} bitmap devices (i.e. bmp(), jpeg(), png(), tiff()) when called within R 4.2 on Windows. Previously it was not possible to easily distinguish on Windows if the device was called with type = "windows" or type = "cairo" and hence we had to conservatively guess no such support even if type = "cairo" had been specified (and within R 4.1 we must still conservatively do so).dev.capabilities() support then we should now be able to correctly guess such support within R 4.2 without needing to manually update guess_has_R4.1_features().guess_has_R4.1_features() now supports an argument features which allows one to limit the guessing of R4.1 feature support to a subset of c("clippingPaths", "gradients", "masks", "patterns"). Although all known graphic devices either implements all or none of these features this need not hold true in the future.
grid.pattern_rose() and grid.pattern_text() now “clip” their boundary using an “alpha mask” rather than a “clipping path”.use_R4.1_masks, the global option ggpattern_use_R4.1_masks, or the global option ggpattern_use_R4.1_features to toggle on/off the R 4.1 alpha mask feature instead of using the use_R4.1_clipping argument or the global option ggpattern_use_R4.1_clipping as before (the latter continue to toggle on/off the R 4.1 clipping path feature in clippingPathGrob()).alphaMaskGrob() is a function that (alpha) masks one grob by using a second grob to specify the (alpha) mask.
use_R4.1_masks is TRUE we simply use the new R 4.1 (alpha) masks feature.use_R4.1_masks is FALSE we generate a grid::rasterGrob() approximation.use_R4.1_masks is NULL try to guess an appropriate choice.use_R4.1_masks can be set by options("ggpattern_use_R4.1_masks").guess_has_R4.1_features() now returns TRUE for the ragg::agg_jpeg(), ragg::agg_ppm(), and ragg::agg_tiff() devices if packageVersion("ragg") >= '1.2.0'. It also returns TRUE for svglite::svglite() if packageVersion("svglite") >= '2.1.0'.clippingPathGrob() will now consistently - as previously documented - use ragg::agg_png() as the default png_device graphics device if it is available and use_R4.1_clipping is FALSE.grid.pattern_image() should no longer throw an inscrutable Error in magick_image_readpath… error on certain platforms such as Windows (#47).guess_has_R4.1_features() is now an exported function. It guesses whether the “active” graphic devices supports the new R 4.1 graphics features and returns TRUE or FALSE.grid.pattern_polygon_tiling() now supports the “elongated_triangular” type (#48). “geometry” patterns now support a “elongated_triangle” grid value.guess_has_R4.1_features() now returns TRUE for the ragg::agg_png() and ragg::agg_supertransparent() devices if packageVersion("ragg") >= '1.2.0'. It now also returns TRUE for the grDevices::bmp(type = "cairo"), grDevices::cairo_ps(), grDevices::jpeg(type = "cairo"), and grDevices::tiff(type = "cairo") devices if getRversion() >= '4.1.0'.The package {magick} has been downgraded from “Imports” to “Suggests” (#44). You’ll need to manually install {magick} with install.packages("magick") in order to use the following “array” patterns:
use_R4.1_gradients is FALSE)The following package option ggpattern_res can now be set by options(). It controls default “raster” image pattern resolution (pixels per inch). Defaults to 72 (pixels per inch).
grid.pattern_polygon_tiling() now supports the following additional polygon tiling type’s (#42):
"rhombille" implements a rhombille tiling of rhombi (#37)"tetrakis_square" implements a tetrakis square tiling of isosceles right triangles (#38)"2*.2**.2*.2**" implements a polygon tiling made of rhombi."2**.3**.12*" implements a polygon tiling made of rhombi, triangles, and twelve-pointed stars."3.3.3.3**" implements a polygon tiling made of triangles."3.3*.3.3**" implements a regular (star) polygon tiling made of triangles and three-pointed stars."3.3.3.12*.3.3.12*" implements a regular (star) polygon tiling made of triangles and twelve-pointed starts."3.3.8*.3.4.3.8*" implements a regular (star) polygon tiling of triangles, squares, and eight-pointed stars."3.3.8*.4**.8*" implements a regular (star) polygon tiling made of triangles, four-pointed stars, and eight-pointed stars."3.4.6.3.12*" implements a regular (star) polygon tiling made of triangles, squares, hexagons, and twelve-pointed stars."3.4.8.3.8*" implements a regular (star) polygon tiling of triangles, squares, octagons, and eight-pointed stars."3.6*.6**" implements a regular (star) polygon tiling made of triangles and six-pointed stars."4.2*.4.2**" implements a polygon tiling made of squares and rhombi."4.4*.4**" implements a regular (star) polygon tiling made of squares and four-pointed stars."4.6.4*.6" implements a regular (star) polygon tiling made of squares, hexagons, and four-pointed stars."4.6*.4.6*.4.6*" implements a regular (star) polygon of squares and six-pointed stars."4.8*.4**.8*" implements a polygon tiling of squares and eight-pointed stars."6.6*.6.6*" implements a regular (star) polygon of hexagons and six-pointed stars."8.4*.8.4*" implements a regular (star) polygon of octagons and four-pointed stars."9.3.9.3*" implements a regular (star) polygon of triangles, nonagons, and three-pointed stars."12.3*.12.3*" implements a regular (star) polygon tiling made of dodecagons and three-pointed stars."12.12.4*" implements a regular (star) polygon tiling made of dodecagons and four-pointed stars."18.18.3*" implements a regular (star) polygon tiling made of eighteen-sided polygons and three-pointed stars.grid.pattern_regular_polygon() now supports a "tetrakis_left" shape and "tetrakis_right" shape which both draw an isosceles right triangle (one oriented left and one oriented right) as well as a "rhombille_rhombus" shape which draws a rhombus. These are non-regular polygons intended to help produce tetrakis square and rhombille polygon tilings.
star_angle() and star_scale() now handle the n_vertices == 2 case (a “two-pointed star” polygon is a rhombus).grid.pattern_gradient() when use_R4.1_gradients=TRUE to better match behavior when use_R4.1_gradients=FALSE.fill (and fill2) colour strings for gridpattern_plasma() and gridpattern_gradient() (when use_R4.1_gradients=FALSE).pattern_square() for the “horizontal” and “vertical” types the value 1L is now guaranteed to be in the center of the pattern (#46).grid::nullGrob()).legend = TRUE.Supports the following new patterns:
grid.pattern_rose() (#43)grid.pattern_text() (#40)grid.pattern_wave() which supports “sine” and “triangle” type waves (#16)names_pattern is a new character vector of supported (builtin) patterns.clippingPathGrob() is a function that clips one grob according to clipping path set by a second grob.
use_R4.1_clipping is TRUE we simply use the new R 4.1 clipping path featureuse_R4.1_clipping is FALSE we generate a grid::rasterGrob() approximationuse_R4.1_clipping is NULL try to guess an appropriate choice.use_R4.1_clipping can be set by options("ggpattern_use_R4.1_clipping")grid.pattern_gradient() now supports the argument use_R4.1_gradients
TRUE use the new R 4.1 gradient featureFALSE use a rasterGrob approximation (old behaviour)NULL try to guess an appropriate choice.use_R4.1_gradients can be set by options("ggpattern_use_R4.1_gradients")The following package options can now be set by options():
ggpattern_use_R4.1_clipping If TRUE use the grid clipping path feature introduced in R v4.1.0. If FALSE do a rasterGrob approximation of the clipped pattern. Currently used by clippingPathGrob(), grid.pattern_rose(), grid.pattern_text(), and available for custom patterns.ggpattern_use_R4.1_features Set the default for all the other ggpattern_use_R4.1_* options arguments.ggpattern_use_R4.1_gradients If TRUE use the grid gradient feature introduced in R v4.1.0. If FALSE do a rasterGrob approximation of the gradient pattern. Currently used by grid.pattern_gradient() and available for custom patterns.ggpattern_use_R4.1_masks If TRUE use the grid mask feature introduced in R v4.1.0. Currently unused by this package but available for custom patterns.ggpattern_use_R4.1_patterns If TRUE use the grid pattern feature introduced in R v4.1.0. Currently unused by this package but available for custom patterns.grid.pattern() now throws an error if there is a non-unique pattern name (set by options("ggpattern_geometry_funcs") and/or options("ggpattern_array_funcs")).grid.pattern() draws a specified “pattern” to the active graphics device while patternGrob() returns a “pattern” (grid) grob.
Supports the following original patterns:
grid.pattern_pch()grid.pattern_polygon_tiling() (#13)grid.pattern_regular_polygon() (#20)grid.pattern_weave() (#12)Supports the following patterns from ggpattern:
grid.pattern_ambient()grid.pattern_circle() (#5)grid.pattern_crosshatch()(#4)grid.pattern_gradient()(#8)grid.pattern_image()(#9)grid.pattern_magick() (#6)grid::null()grid.pattern_placeholder() (#10)grid.pattern_plasma() (#7)grid.pattern_stripe() (#3)Enhancements made to the {ggpattern} patterns provided by this package:
NA_real_ (preserve existing alpha transparency) instead of 1 (set to fully opaque).grid.pattern_ambient() pattern supports all arguments of the six {ambient} “noise” functions.grid.pattern_circle() has several enhancements:
xoffset and yoffset (#22)grid, type, and subtype to customize the pattern arrangement.fill colors now produces a more attractive pattern.density greater than 1 will now sometimes give an attractive result (#17).{sf} to clip circles to boundary instead of {gridGeometry}grid.pattern_crosshatch() allows using the argument fill2 to set different fill color(s) for the “over” crosshatch lines (#14).xoffset, yoffset, and spacing are now interpreted as “snpc” units and grid.pattern_stripe() and grid.pattern_crosshatch() now allow using the argument grid to tweak placement of lines so that they now match the placement of circles from grid.pattern_circle() and polygons from grid.pattern_regular_polygon() (#24).The center point of the geometry “grid” now matches the center of the viewport.
mean_col() is a utility function that computes an “average” color (#21)star_scale() and star_angle() are utility functions for converting between regular star polygon parameterizations (#39).pattern_hex() returns an integer matrix indicating placement of multiple colors (or other graphical elements) on a hex grid. Supports types listed in hex_names.pattern_square() returns an integer matrix indicating placement of multiple colors (or other graphical elements) on a rectangular grid. Supports types listed in square_names.pattern_weave() returns a logical matrix indicating where the warp lines should “up” for a specified weave pattern type and subtype. Supports weaves listed in weave_names. In particular supports “irregular matt” and “elongated twill” family of weave patterns including “zig-zag” and “herringbone” variations.
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