Usage from R

Install the pluotr package from GitHub.

devtools::install_github("keller-mark/pluot", subdir="bindings-r")

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Zarr data

Use Zarr data from pizzarr Store instances.

Example

library(pluotr)

camera_identity <- c(
  1, 0, 0, 0,
  0, 1, 0, 0,
  0, 0, 1, 0,
  0, 0, 0, 1
)

display_svg(
  layers = list(
    list(
      layer_type   = "PointLayer",
      layer_params = list(
        layer_id                 = "four_points",
        data_unit_mode_x         = "Pixels",
        data_unit_mode_y         = "Pixels",
        point_radius_unit_mode_x = "Pixels",
        point_radius_unit_mode_y = "Pixels",
        point_shape_mode         = "Circle",
        point_radius             = 20.0,
        bounds                   = NULL,
        position_x               = list(dtype = "Float32", values = c(60,  60, 140, 140)),
        position_y               = list(dtype = "Float32", values = c(60, 140,  60, 140)),
        labels_vec               = c(0L, 1L, 2L, 3L)
      )
    )
  ),
  width       = 200L,
  height      = 200L,
  camera_view = camera_identity,
  plot_id     = "intro_svg"
)

Zarr example

library(pluotr)
library(pizzarr)

store <- HttpStore$new(
  "https://pub-adb3658c8ed642caa534fdc612cd1c0c.r2.dev/wheat.zarr"
)
pluot_register_store("wheat_store", store)

w <- 800L
h <- 600L

camera_view <- c(
  0.15, 0.0,  0.0, 0.0,
  0.0,  0.01, 0.0, 0.0,
  0.0,  0.0,  1.0, 0.0,
  0.0,  -1.0, 0.0, 1.0
)

display_raster( # or display_svg
  layers = list(
    list(
      layer_type   = "ZarrBarPlotLayer",
      layer_params = list(
        layer_id        = "barplot_layer",
        bounds          = NULL,
        orientation     = "Vertical",
        identifier_key  = "/year",
        quantity_key    = "/wheat",
        fill_color_mode = "Categorical"
      )
    )
  ),
  width               = w,
  height              = h,
  camera_view         = camera_view,
  margin_left         = 100L,
  margin_bottom       = 100L,
  margin_top          = 10L,
  margin_right        = 10L,
  plot_id             = "wheat_barplot",
  store_name          = "wheat_store",
  wait_for_store_gets = TRUE,
  cache_enabled       = FALSE
)