rivervis (version 0.46.0)

RiverPoint: Points on River Charts

Description

This function plots scatter points or broken lines on the river chart.

Usage

RiverPoint(site, river, distance, value, riverlayout, range = NA, type = "l", pt.col = "grey40", pt.bg = "black", pt.pch = 20, pt.cex = 1, lbl.cex = 0.7, lbl.adj = c(0.5, 2), lbl.ofs = 0.5, lbl.col = "black", lbl.srt = 0, lbl.pos = NULL, lbl.shw = FALSE, ln.lwd = 1)

Arguments

site

a vector of site IDs.

river

a vector of river names.

distance

a vector of distances from sites to the river mouth.

value

a vector of values.

riverlayout

the output list of RiverLayout or RiverMap.

range

point value range. A vector of two values indicating lower limit and upper limit.

type

type of plot. See plot for details. The default value is "l", which means "lines".

pt.col

point or point border colour.

pt.bg

point point background(fill) colour when pt.pch=21:25.

pt.pch

point style.

pt.cex

point size.

lbl.cex

label size.

lbl.adj

label adjustment. One or two values in [0,1] for x and y (optional) adjustment.

lbl.ofs

label position offset.

lbl.col

label colour.

lbl.srt

label angle.

lbl.pos

label position. 1 for below, 2 for left, 3 for above, and 4 for right. See par for details.

lbl.shw

show labels (TRUE) or not (FALSE).

ln.lwd

line width.

See Also

RiverLayout, RiverDraw, RiverMap, par.

Examples

data(Ballinderry)

riverlayout <- RiverLayout(B.river$River,B.river$Length,
                           B.river$Parent,B.river$Position,
                           B.river$Distance, direction = -1)

RiverDraw(riverlayout)

RiverPoint(B.elevation$Site, B.elevation$River, B.elevation$Distance,
           B.elevation$Elevation, riverlayout)

RiverPoint(B.sitenh4n$Site, B.sitenh4n$River, B.sitenh4n$Distance,
           B.sitenh4n$NH4N_Spring, riverlayout, type = "o",
           pt.col = "#5381FFFF", pt.pch = 21, pt.bg = "lightblue")

RiverPoint(B.sitenh4n$Site, B.sitenh4n$River, B.sitenh4n$Distance,
           B.sitenh4n$NH4N_Autumn, riverlayout, type = "o",
           pt.col = "#FF3931FF", pt.pch = 21, pt.bg = "pink",
           lbl.shw = TRUE)