add_gps_to_rayshader: Adds a GPS trace to a 'rayshader' scene

In geoviz: Elevation and GPS Data Visualisation

Description

Adds a GPS trace to a 'rayshader' scene

Usage

add_gps_to_rayshader(
  raster_input,
  lat,
  long,
  alt,
  zscale,
  line_width = 1,
  colour = "red",
  alpha = 0.8,
  lightsaber = TRUE,
  clamp_to_ground = FALSE,
  raise_agl = 0,
  ground_shadow = FALSE,
  as_line = TRUE,
  point_size = 20
)

Arguments

raster_input	a raster
lat	vector of decimal latitude points
long	vector of decimal longitude points
alt	vector of altitudes
zscale	ratio of raster cells to altitude
line_width	line width of the gps trace
colour	colour of the gps trace
alpha	alpha of the gps trace (has no effect if lightsaber = TRUE)
lightsaber	(default = TRUE) gives the GPS trace an inner glow affect
clamp_to_ground	(default = FALSE) clamps the gps trace to ground level + raise_agl
raise_agl	(default = 0) raises a clamped to ground track by the specified amount. Useful if gps track occasionally disappears into the ground.
ground_shadow	(default = FALSE) adds a ground shadow to a flight gps trace
as_line	(default = TRUE) Set to FALSE to render single points instead of a trace line (which then ignores line_width & lightsaber)
point_size	size of points when as_line = TRUE

Value

Adds GPS trace to the current 'rayshader' scene

Examples

flight <- example_igc()
add_gps_to_rayshader(example_raster(),
  flight$lat,
  flight$long,
  flight$altitude,
  zscale = 25)

geoviz documentation built on March 26, 2020, 9:15 p.m.