plot_rast: quick plot for a raster based on level_plot

In IREA-CNR-MI/sprawl: sprawl: Spatial Processing (in) R: Advanced Workflows Library

Description

FUNCTION_DESCRIPTION

Usage

plot_rast(in_rast, band = 1, in_poly = NULL, in_points = NULL,
  background = FALSE, limits = NULL, tails = c(0.02, 0.98),
  palette = "RdYlGn", legend_type = "standard", col_outlow = "gray10",
  col_outhigh = "gray90", maxpixels = 5e+05, title = "Raster Plot",
  plot_now = TRUE, ...)

Arguments

in_rast	Input raster object or file
band	PARAM_DESCRIPTION, Default: 1
in_poly	optional input polygon vector object or file to be overlayed on the plot, Default: NULL
in_points	optional input points vector object or file to be overlayed on the plot, Default: NULL
background	not used, Default: FALSE
limits	numeric array [2] optional limits governing the range of values to be plotted (e.g., c(0.2,0.4)), Default: NULL
tails	numeric array [2] percentiles used to "cut" the values to be plotted to allow a "good" representation. Values outside the specified percentiles will be plotted as NoData, or using the colors specified in col_outlow and col_outhigh, Default: c(0.02, 0.98) (meaning) cutting the values at the 2nd and 98th percentile)
palette	Palette to be used for colors (see RColorBrewer::brewer.pal), Default: 'RdYlGn'
legend_type	"standard" or "custom" (see examples), Default: 'standard'
col_outlow	Color used to plot the values below the lower limit/tail. Can be a string corresponding to a valid "R" color or HEX representation, Default: 'gray10'
col_outhigh	Color used to plot the values below the lower limit/tail. Can be a string corresponding to a valid "R" color or HEX representation, Default: 'gray90'
maxpixels	numeric Maximum number of pixels to be plotted, Default: 5e+05
title	character Title for the plot, Default: 'Raster Plot'
plot_now	logic If TRUE, the plot is immediately printed to screen. Otherwise, an object allowing later plotting/modifications is returned, Default: TRUE
...	Any other arguments (?)

Details

DETAILS

Value

OUTPUT_DESCRIPTION

See Also

layer stack,quantile levelplot brewer.pal

Examples

## Not run: 
 library(sprawl)

 in_rast <- system.file("extdata", "gNDVI.tif", package = "sprawl.data")
 in_vect <- create_fishnet(in_rast, pix_for_cell = 150)
 # plot only the raster
 plot_rast(in_rast)

 # plot only the raster with custom legend
 plot_rast(in_rast, legend = "custom")

 # add a polygon and change the legend, palette and maxpixels
 plot_rast(in_rast,
           in_poly   = in_vect,
           tails     = c(0.1, 0.99),
           legend    = "custom",
           palette   = "RdYlBu" ,
           title     = "RapidEye - GNDVI",
           maxpixels = 10e5)

 in_rast <- raster::stack(system.file("extdata", "sprawl_EVItest.tif",
                                      package = "sprawl.data"))[[1:4]]
 plot_rast(in_rast)
 
## End(Not run)

IREA-CNR-MI/sprawl documentation built on May 27, 2019, 1:12 p.m.