plotAreaComparison: Compare area definitions

In StoXProject/RstoxFDA: Fisheries Dependent Analysis with RstoX

Compare area definitions

Description

Plots two area defintions on top of each other for comparison

Usage

plotAreaComparison(
  areaDef1,
  areaDef2,
  areaNameCol1 = "StratumName",
  areaNameCol2 = areaNameCol1,
  areaLabels1 = F,
  areaLabels2 = F,
  xlim = NULL,
  ylim = NULL,
  areaLabelSize = 2,
  title = "",
  projection = NULL,
  polygonColor1 = "blue",
  polygonColor2 = "red",
  linetype1 = "solid",
  linetype2 = "dotdash"
)

Arguments

areaDef1	A sf data.frame. The area definition to be plotted first ("behind" the other one)
areaDef2	A sf data.frame. The area definition to be plotted second ("on top of" the other one)
areaNameCol1	The column in areaDef1 that provides the names to be used for any labeling of areas
areaNameCol2	The column in areaDef2 that provides the names to be used for any labeling of areas
areaLabels1	logical, specifying whether labels should be plotted for areaDef1. These are plotted first ("behind" any labels plotted for areaDef2)
areaLabels2	logical, specifying whether labels should be plotted for areaDef2. These are second ("on top of" any labels plotted for areaDef1)
xlim	x axis limits in degrees longitude
ylim	y axis limits in degrees latitudeD
areaLabelSize	size for any area labels
title	plot title
projection	proj4string or EPSG code specifying the desired projection, see st_crs. Defaults to mercator projection.
polygonColor1	color to be used for plotting the areaDef1 polygons.
polygonColor2	color to be used for plotting the areaDef2 polygons.
linetype1	the linetype used for plotting the areaDef1 polygons.
linetype2	the linetype used for plotting the areaDef2 polygons.

Details

Map ranges to plot are specified by 'xlim' and 'ylim'. These should always be given in lon/lat. if these are not given they will be derived from the bounding box of 'areaDef'. To allow for flexible projection, some space will be added around 'xlim' and 'ylim'.

Colors can be specified as understood by ggplot2. E.g. one of those listed by colors. Linetypes can be specified as understood by ggplot2. E.g: "solid", "dashed", "dotted", "dotdash", "longdash", or "twodash".

Examples

 #illustratting the difference between to similar area coding systems:
 plotAreaComparison(RstoxFDA::mainareaFdir2017, 
                    RstoxFDA::mainareaFdir2018, 
                    xlim=c(0,12), 
                    ylim=c(54,60), 
                    areaLabels2 = TRUE, 
                    title="Comparing Fdir main area definitions, before and as of 2018")

StoXProject/RstoxFDA documentation built on Dec. 17, 2024, 10:58 a.m.