New feature

Create a new Feature object.

Usage

new_feature(
  name,
  variable,
  visible = TRUE,
  invisible = NA_real_,
  loaded = TRUE,
  hidden = FALSE,
  downloadable = TRUE,
  status = TRUE,
  current = 0,
  goal = 0.2,
  limit_goal = 0,
  id = uuid::UUIDgenerate(),
  pane = paste(uuid::UUIDgenerate(), variable$index, sep = "-")
)

Arguments

name

character Name of the feature.

variable

Variable object.

visible

logical The initial visible value. This is used to determine if the feature is displayed (or not) or not the map. Defaults to TRUE.

invisible

numeric date/time. A time stamp date given to when a loaded layer is first turned invisible. This is used to keep track of loaded invisible layers to offload once the cache threshold has been reached. Defaults to NA_real_.

loaded

logical The initial loaded value. This is used to determine if the feature has been loaded into the DOM. Defaults to FALSE.

hidden

logical The hidden value. This is used to determine if the feature can ever be displayed. Unlike visible, if this parameter is FALSE then a feature can never be viewed on the map. Defaults to FALSE.

downloadable

logical The downloadable value. This is used to determine if the feature can be download. Set downloadable to FALSE for sensitive layers that should not be avaiable for download. Defaults to TRUE.

status

logical The initial status value. This is used to display information on whether the feature is selected (or not) for subsequent analysis. Defaults to TRUE.

current

numeric current proportion of values held in existing conservation areas (e.g. 0.1 = 10%).

goal

numeric The initial goal for the feature. Note that goal values are specified as proportions, such that a value of 0.1 corresponds to 10%. Defaults to 0.3 (i.e. 30%).

limit_goal

numeric The minimum goal (inclusive) that can be selected for the feature. Note that goal values are specified as proportions, such that a value of 0.1 corresponds to 10%. Defaults to 0 (i.e. 0%).

id

character unique identifier. Defaults to a random identifier (uuid::UUIDgenerate()).

pane

character unique map pane identifier. Defaults to a random identifier (uuid::UUIDgenerate()) concatenated with layer index.

Value

A Feature object.

Examples

# find data file paths
f1 <- system.file(
  "extdata", "projects", "sim_raster", "sim_raster_spatial.tif",
  package = "wheretowork"
)
f2 <- system.file(
  "extdata",  "projects", "sim_raster", "sim_raster_attribute.csv.gz",
  package = "wheretowork"
)
f3 <- system.file(
  "extdata",  "projects", "sim_raster", "sim_raster_boundary.csv.gz",
  package = "wheretowork"
)

# create new dataset
d <- new_dataset(f1, f2, f3)

# create new variable
v <- new_variable_from_auto(dataset = d, index = 1)

# create feature using the variable
f <- new_feature(name = "Intact Alvar", variable = v)

# print object
print(f)
#> Feature
#>   id:       0fe309de-88c2-479c-af79-99bd788f0c7c
#>   name:     Intact Alvar
#>   variable: .../sim_raster_spatial.tif#Brown_necked_Parrot_Brown_necked_ [total: 483 ]
#>   pane:  f2a21be6-c976-4df7-8553-3b734fa89d59-Brown_necked_Parrot_Brown_necked_
#>   visible:  TRUE
#>   invisible:  NA
#>   loaded:  TRUE
#>   hidden:   FALSE
#>   downloadable:   TRUE
#>   status:   TRUE
#>   current:  0
#>   goal:     0.2