plotOn: Geographical representation of a data frame or raster map.

In ecor/geotopmap: geotopmap

Description

Geographical representation of a data frame or raster map.

Usage

plotOn(x, map = ggmap::get_map(location = "trentino", zoom = 9),
  latlon_crs = as.character("+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"),
  layer = 1, legend = "bottomright", title = "Soil Water Content",
  label = "swc", high = "blue", low = "white", alpha = c(0.1, 0.8),
  facet_wrap = FALSE, nrow = NULL, ncol = NULL, range = NULL,
  scale = "continuous_2", scale.fill.gradient = TRUE, plot = TRUE,
  scale_colour_gradientn_scale = NULL, extent = "normal",
  method = c("bilinear", "ngb"), palette = rainbow, shape = 15,
  size = NA, ...)

Arguments

x	a Raster* class object
map	geograghical map on which x is plotted. It is an object returned by get_map or similars.
latlon_crs	string containing the utilized latitude longitude Coordinate Refarance System. See default in Usage.
layer	brick layer utilized for geographical plotting. Default is 1.
title	string title of the graphic
label	string title (label) of the legend. It is used as the name of the scale if scale.fill.gradient is TRUE, otherwise it is ignored.
high	colour for low end of gradient. See scale_fill_gradient.
low	colourf or high end of gradient. See scale_fill_gradient.
alpha	alpha coefficient. See http://en.wikipedia.org/wiki/Alpha_compositing.
facet_wrap	logical value. If TRUE it uses facet_wrap to print all plots.
nrow,ncol	number of rows and columns. See facet_wrap.
scale	alternative parameter to scale.fill.gradient, it is a term potentially added for color scale (see scale_colour_hue o similars). It is used only if it is not NULL or scale.fill.gradient is FALSE
scale.fill.gradient	logical value. If it is TRUE (Default), it uses scale.fill.gradient
plot	logical value. If TRUE (Default) the function also plots the map, otherwise returns its value without any preliminary plot.
scale_colour_gradientn_scale	color scale for scale_colour_gradientn. It is used if it is nott NULL. Default is NULL.
method	see projectRaster
palette	palette function used for scale_fill_manual .
shape,size	see geom_point
...	further arguments

Value

A "ggplot" object.

Note

Useful link: http://journal.r-project.org/archive/2013-1/kahle-wickham.pdf

See Also

geom_point,ggmap,facet_wrap

Examples

library(geotopVis)
data(soilwatercontent)

x <- plotOn(x=soilwatercontent[[1]])

##' ANOTHER EXAMPLE
library(geotopbricks)
# The data containing in the link are only for educational use
wpath <- "http://www.rendena100.eu/public/geotopbricks/simulations/idroclim_test1"
tz <-  "Etc/GMT-1"
when <- as.POSIXct("2002-03-22",tz=tz)

# a 2D map:
x_e <- "SnowDepthMapFile"
# Not Run: uncomment the following line
m <- rasterFromOutput2DMap(x_e,when=when,wpath=wpath,timestep="OutputSnowMaps",
                           tz=tz,use.read.raster.from.url=TRUE)
## NOTE: set use.read.raster.from.url=FALSE (default)
# if the "wpath" directorty is in the local file system.
# Not Run: uncomment the following line
m/10

plot(m/10,main="Snow Depth")



 location = c(10.5,45.5,12.5,46.5)
 map=get_map(location = location) ###, zoom = 9)


xmap <- plotOn(m/10,map=map,high="blue",low="white",title="Snow Depth",label="depth[cm]",plot=TRUE,alpha=c(0,0.3),extent="device")
xmap

ecor/geotopmap documentation built on May 15, 2019, 8:56 p.m.