geoelectrics (version 0.2.2)

plotLegend: Plots Legend

Description

Plots the legend for resistivity values.

Usage

plotLegend(.Object, legend.lab = expression(paste("Resistivity [", Omega,
  " m]")), minData = 0, maxData = 999999, breaks = NULL,
  legend.line = 2.2, nlevel = 18, lab.breaks = c(), horizontal = T,
  col = colors, trafo = log, backtrafo = exp, ...)
# S4 method for ProfileSet
plotLegend(.Object, legend.lab,
  minData = .Object@minData, maxData = .Object@maxData)
# S4 method for Profile
plotLegend(.Object, legend.lab,
  minData = .Object@processedData@minData,
  maxData = .Object@processedData@maxData)

Arguments

.Object

either a single Profile or a ProfileSet.

legend.lab

label of legend (default: expression(paste("Resistivity [", Omega, "]"))).

minData

minimum value.

maxData

maximum value.

breaks

Break points in sorted order to indicate the intervals for assigning the colors. Note that if there are nlevel colors there should be (nlevel+1) breakpoints. If breaks is not specified (nlevel+1) equally spaced breaks are created where the first and last bin have their midpoints at the minimum and maximum values in z or at zlim.

legend.line

distance in units of character height (as in mtext) of the legend label from the color bar. Make this larger if the label collides with the color axis labels.

nlevel

number of color levels.

lab.breaks

number of breaks.

horizontal

If false legend will be a vertical strip on the right side. If true (default) the legend strip will be along the bottom.

col

vector of colors.

trafo

transformation to be done on data (default: log). For linear scale: function(x) x.

backtrafo

back transformation to plot correct labels (default: exp). For linear scale: function(x) x.

...

image.plot arguments.

See Also

Profile-class, ProfileSet-class, plot3d,

Examples

data(sinkhole)

plotLegend(sinkhole)

# for linear scale:
plotLegend(sinkhole@profiles[[1]],
           trafo=function(x) x,
           backtrafo=function(x) x,
           minData=100, maxData=50000)