CreateColorPaletteLegend: Creates a color palette legend for maps

Description Usage Arguments Details Value

Description

Creates a display of selected color palettes

Usage

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CreateColorPaletteLegend (color_pal, color_range, color_alpha,
  color_levels, color_increment, legend_levels, log, pos_x, pos_y, main,
  main_cex, main_col, lab_col, signif_digits, left, plot_new)

Arguments

color_pal

color palette to be used, also allowed are two extremes or one value. Default is: c("yellow","red").

color_range

two-valued vector, the minimum and maximum values.

color_alpha

two-digit rbga alpha value, "00" to "ff", default is "ff". Note: ExportKMLPOlygon() uses default "cc"

color_levels

one value, number of color levels. Ignored if color_interval not equal to NA. Default is 5.

color_increment

one value, increment value of color breakpoints, one value. Default is NA.

legend_levels

one value, increment in legend values, ignored if legend_values not equal to NA. Default is 5.

legend_values

vector of specific legend labels. Default is NA.

log

logical of whether to log transform. Default is FALSE.

pos_x

relative position of left and right edge of color bar on first axis, [0,1]. Default is c(0.5, 0.55).

pos_y

relative position on lower and upper edge of colar bar on second axis, [0,1]. Default is c(0.05, 0.9).

main

main title, written above the color bar. Default is NA.

main_cex

relative size of main title. Default is 1.

main_col

color of main title. Default is "black".

lab_col

color labels, default is "black".

signif_digits

integer, number of signifcant digits

left

logical indicating whether to put the labels on the left (TRUE) or on the right (FALSE). Default is FALSE.

plot_new

logical indicating whether to create a new plot. Default is TRUE.

Details

Used in ExportKMLPolygon, make sure code used for color range, selction, log-tranformation, and color palette creation is identical or produces same results. Color levels and legend levels use the pretty(), so the actual number of levels may not be identical to parameter values.

Value

Plot of legend with color palette


Blakemassey/gisr documentation built on Aug. 30, 2020, 12:14 a.m.