Export a time series of images to KML
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".
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, ...)obj |
object of class |
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 |
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.
Tomislav Hengl
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.