layer.RasterBrick: Export a time series of images to KML

In plotKML: Visualization of Spatial and Spatio-Temporal Objects in Google Earth

Description

Writes a series of images to PNGs and uses them to create ground overlays. Works only with "RasterBrick" class objects with time dimension specified via the "@zvalue".

Usage

kml_layer.RasterBrick(obj, plot.legend = TRUE, dtime = "", tz = "GMT", 
          z.lim = c(min(minValue(obj), na.rm=TRUE), max(maxValue(obj), na.rm=TRUE)), 
          colour_scale = get("colour_scale_numeric", envir = plotKML.opts),
          home_url = get("home_url", envir = plotKML.opts),
          metadata = NULL, html.table = NULL,
          altitudeMode = "clampToGround", balloon = FALSE,
          png.width, png.height, min.png.width = 800, png.type, ...)

Arguments

obj	object of class "RasterBrick" (e.g. a time series of images)
plot.legend	logical; specify whether a map legend should be generated automatically
dtime	temporal support (point or block) expressed in seconds
tz	referent time zone
z.lim	upper and lower limits (unique for all maps in the time series); the function by default uses the absolute minimum and maximum in values
colour_scale	color palette; by default uses the color scale for numeric variables
home_url	(optional) URL directory / location of the images
metadata	(optional) the metadata object
html.table	(optional) the description block (html)
altitudeMode	character; the default altitudeMode
balloon	logical; specifies whether to display balloon for each element
png.width	(optional) width of the PNG files
png.height	(optional) height of the PNG files
min.png.width	(optional) minimum width of the PNG file
png.type	character; PNG type
...	additional arguments (see aesthetics)

Details

This method is recommended for visualization of numeric bands representing the same variable i.e. time series of images. To export a stack of images of different type see kml_layer.Raster. If the "@zvalue" slot is empty, dates will be added by subtracting days from the current day with 1–day increments.

Author(s)

Tomislav Hengl

See Also

kml-methods, kml_open, kml_layer.Raster, plotKML-method

plotKML documentation built on April 27, 2021, 3:01 p.m.