scatter
scatter(cmd0::String="", arg1=nothing; kwargs...)
Reads (x,y) pairs and plot symbols at those locations on a map/figure. The input can either be a file name of a file with at least two columns (x,y), but optionally more, a GMTdatset object with also two or more columns.
This module is a subset of plot
to make it simpler to draw scatter plots. So many (fine) controlling parameters are not listed here. For a finer control, user should consult the plot
module.
Required Arguments
There are no required arguments but
Optional Arguments
B or axes or frame
Set map boundary frame and axes attributes. Default is to draw and annotate left and bottom axes. Extended at frameJ or proj : – proj=<parameters>
Select map projection. Default is linear and 14 cm width. Extended at projR or region or limits : – limits=(xmin, xmax, ymin, ymax) | limits=(BB=(xmin, xmax, ymin, ymax),) | limits=(LLUR=(xmin, xmax, ymin, ymax),units="unit") | ...more
Specify the region of interest. Default limits are computed from data extents. Extended at limitsG or markerfacecolor or MarkerFaceColor or mc or fill
Select color or pattern for filling of symbols [Default is no fill]. Note thatscatter
will search for fill and pen settings in all the segment headers (when passing a GMTdaset or file of a multi-segment dataset) and let any values thus found over-ride the command line settings (but those must be provided in the terse GMT syntax). See Setting color for extend color selection (including color map generation).S or symbol or marker or Marker or shape : – Default is
circle
with a diameter of 7 points- symbol=symbol string
A full GMT compact string. - symbol=(symb=??, size=??, unit=??)
Where symb is one Symbols like:circle
, size is symbol size in cm, unless unit is specified i.e.:points
In alternative to the
symbol keyword, user can select the symbol name with either
marker orshape and symbol size with
markersizeor
ms. The value of these keywords can be either numeric (symb meaning size in cm) or string if an unit is appended, *e.g.* markersize="5p"
This form of symbol selection allows also to specify a variable symbol size. All it's need for this is that the keyword's value be an array with the same number of elements as the number of data points.- symbol=symbol string
figname or savefig or name :: figname=
name.png
Save the figure with thefigname=name.ext
whereext
chooses the figure format
Examples
A simple scatter of ten points plotted as red circles of 7 points size
scatter(1:10,rand(10), fill=:red, show=true)
A plot where symbol's size grows linearly
sizevec = [s for s = 1:10] ./ 10;
scatter(1:10, 1:10, markersize = sizevec, marker=:square, fill=:green, show=1)
See also
The GMT man page