prettymap: Plot A Pretty Map

In prettymapr: Scale Bar, North Arrow, and Pretty Margins in R

Plot A Pretty Map

Description

This function executes everything in plotexpression, then draws north arrow and scale bar using addnortharrow and addscalebar. Specify that plot is in a non lat/lon projection by passing scale.plotepsg=... or plotunit="m".

Usage

prettymap(
  plotexpression,
  oma = c(0, 0, 0, 0),
  mai = c(0, 0, 0, 0),
  drawbox = FALSE,
  box.lwd = 1,
  drawscale = TRUE,
  scale.pos = "bottomleft",
  scale.htin = 0.1,
  scale.widthhint = 0.25,
  scale.unitcategory = "metric",
  scale.style = "bar",
  scale.bar.cols = c("black", "white"),
  scale.lwd = 1,
  scale.linecol = "black",
  scale.padin = c(0.15, 0.15),
  scale.labelpadin = 0.08,
  scale.label.cex = 0.8,
  scale.label.col = "black",
  scale.plotunit = NULL,
  scale.plotepsg = NULL,
  scale.tick.cex = 0.8,
  drawarrow = FALSE,
  arrow.pos = "topright",
  arrow.scale = 1,
  arrow.padin = c(0.15, 0.15),
  arrow.lwd = 1,
  arrow.cols = c("white", "black"),
  arrow.border = "black",
  arrow.text.col = "black",
  title = NULL,
  ...
)

Arguments

plotexpression	An expression to plot the map, can be in brackets. e.g. plot(stuff); text(places, "readme!") or {plot(stuff); text(places, "readme!")}
oma	A vector of length 4 describing the outer margin area. See documentation for graphics::par.
mai	A vector of length 4 describing the margin area in inches. See documentation for graphics::par.
drawbox	TRUE if box should be drawn around map, FALSE otherwise.
box.lwd	The line width of the box
drawscale	TRUE if scalebar should be drawn, FALSE otherwise.
scale.pos	Where to align the scalebar. One of "bottomleft", "bottomright", "topleft", or "topright".
scale.htin	Height (in inches) of the desired scale bar
scale.widthhint	The fraction of the plottable width which the scale bar should (mostly) occupy.
scale.unitcategory	One of "metric" or "imperial"
scale.style	One of "bar" or "ticks".
scale.bar.cols	If style=="bar", the colors to be repeated to make the bar.
scale.lwd	The line width to use when drawing the scalebar
scale.linecol	The line color to use when drawing the scalebar
scale.padin	A vector of length 2 determining the distance in inches between the scalebar and the edge of the plottable area.
scale.labelpadin	The distance between the end of the scalebar and the label (inches)
scale.label.cex	The font size of the label
scale.label.col	The color of the label
scale.plotunit	The unit which the current plot is plotted in, one of cm, m, km, in, ft, mi. or latlon. This parameter is optional if plotepsg is passed.
scale.plotepsg	The projection of the current plot. If extents are valid lat/lons, the projection is assumed to be lat/lon (EPSG:4326), or Spherical Mercator otherwise (EPSG:3857). This is done to work seamlessly with OpenStreetMap packages.
scale.tick.cex	If style=="ticks", the height of interior ticks.
drawarrow	TRUE if north arrow should be drawn, FALSE otherwise
arrow.pos	Where to align the north arrow. One of "bottomleft", "bottomright", "topleft", or "topright".
arrow.scale	Scale the default north arrow to make it bigger or smaller
arrow.padin	A vector of length 2 determining the distance in inches between the scalebar and the edge of the plottable area.
arrow.lwd	The line width outlining the north arrow
arrow.cols	A vector of length 2 determining the two colors to be drawn for the north arrow
arrow.border	The line color outlining the north arrow
arrow.text.col	Color of the "N"
title	Plot title, or NULL if none is desired.
...	Further graphical parameters to set while executing plotting code

Examples

prettymap(plot(1:5, 1:5, asp=1), scale.plotunit="cm", drawarrow=FALSE)
#add a title
prettymap(plot(1:5, 1:5, asp=1), title="My Plot")

prettymapr documentation built on May 29, 2024, 5:38 a.m.