View source: R/layers_great-circle-layer.R
add_great_circle_layer | R Documentation |
The GreatCircleLayer
is a variation of the ArcLayer
.
It renders flat arcs along the great circle joining pairs of source
and target points, specified as latitude/longitude coordinates.
add_great_circle_layer(
deckgl,
data = NULL,
properties = list(),
...,
id = "great-circle-layer"
)
deckgl |
A deckgl widget object. |
data |
The url to fetch data from or a data object. |
properties |
A named list of properties with names corresponding to the properties defined
in the deckgl-api-reference
for the given layer class. The |
... |
Named arguments that will be added to the |
id |
The unique id of the layer. |
https://deck.gl/#/documentation/deckgl-api-reference/layers/great-circle-layer
## @knitr great-circle-layer
data("bart_segments")
properties <- list(
pickable = TRUE,
getWidth = 12,
getSourcePosition = ~from_lng + from_lat,
getTargetPosition = ~to_lng + to_lat,
getSourceColor = JS("d => [Math.sqrt(d.inbound), 140, 0]"),
getTargetColor = JS("d => [Math.sqrt(d.outbound), 140, 0]"),
getTooltip = "{{from_name}} to {{to_name}}"
)
deck <- deckgl(zoom = 10, pitch = 35) %>%
add_great_circle_layer(data = bart_segments, properties = properties) %>%
add_control("Great Circle Layer") %>%
add_basemap()
if (interactive()) deck
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