ursa (version 3.9.4)

display_stack: Plot multi-band heterogenous raster images in the PNG format.

Description

Raster images are forced to be interpreted as heterogenuous (having the different units). It implies creating multi-panel layout with multiple colorbars.

Usage

display_stack(obj, ...)
display_hetero(obj, ...)

Arguments

obj

Object of class ursaRaster or list of ursaRaster objects.

…

Passed to hierarchy of plotting functions:

• compose_open

  • compose_design

• compose_plot

  • compose_panel

    • panel_new

    • panel_raster

    • panel_decor

      • panel_graticule

      • panel_coastline

      • panel_scalebar

    • panel_annotation

  • compose_legend

    • legend_colorbar

• compose_close

Value

Function returns NULL value.

Details

If argument obj is object of class ursaRaster then obj is coerced to list of ursaRaster objects ('brick' is coerced to 'stack').

The plot layout is either two-columns or two-rows. Extent of coordinate grid has a form of rectangle. The layout selection depends on ratio of rectangle's sides. For single-column design use parameter layout=c(NA,1L). e.g., display_brick(a,layout=c(NA,1)), for single-row design use parameter layout=c(1,NA). The same is for forcing of two-columns (layout=c(NA,2L)) and two-rows layouts (layout=c(2L,NA)). Other layouts are not applicable for multiple colorbars.

display_hetero is a synonym to display_stack. It is introduced to emphasize the plotting of complex object with heterogeneous elements, for example, having different units.

See Also

display, display_brick, display_rgb

Examples

# NOT RUN {
session_grid(NULL)
a <- ursa_dummy(nband=3)
display_stack(a)
# }