plot(x=None, y=None, data=None, sizes=None, direction=None, **kwargs)¶
Plot lines, polygons, and symbols on maps.
Used to be psxy.
Takes a matrix, (x,y) pairs, or a file name as input and plots lines, polygons, or symbols at those locations on a map.
Must provide either data or x and y.
If providing data through x and y, color (G) can be a 1d array that will be mapped to a colormap.
If a symbol is selected and no symbol size given, then psxy will interpret the third column of the input data as symbol size. Symbols whose size is <= 0 are skipped. If no symbols are specified then the symbol code (see S below) must be present as last column in the input. If S is not used, a line connecting the data points will be drawn instead. To explicitly close polygons, use L. Select a fill with G. If G is set, W will control whether the polygon outline is drawn or not. If a symbol is selected, G and W determines the fill and outline/no outline, respectively.
Full option list at http://gmt.soest.hawaii.edu/doc/latest/plot.html
- B = frame
- C = cmap
- G = color
- J = projection
- R = region
- S = style
- W = pen
- i = columns
- x, y : 1d arrays
Arrays of x and y coordinates of the data points.
- data : str or 2d array
Either a data file name or a 2d numpy array with the tabular data. Use option columns (i) to choose which columns are x, y, color, and size, respectively.
- sizes : 1d array
The sizes of the data points in units specified in style (S). Only valid if using x and y.
- direction : list of two 1d arrays
If plotting vectors (using
style='v'), then should be a list of two 1d arrays with the vector directions. These can be angle and length, azimuth and length, or x and y components, depending on the style options chosen.
- J : str
Required if this is the first plot command. Select map projection.
- R : str or list
Required if this is the first plot command.
'xmin/xmax/ymin/ymax[+r][+uunit]'. Specify the region of interest.
- A : bool or str
'[m|p|x|y]'By default, geographic line segments are drawn as great circle arcs. To draw them as straight lines, use A.
- B : str
Set map boundary frame and axes attributes.
- C : str
File name of a CPT file or
C='color1,color2[,color3,...]'to build a linear continuous CPT from those colors automatically.
- D : str
'dx/dy': Offset the plot symbol or line locations by the given amounts dx/dy.
- E : bool or str
'[x|y|X|Y][+a][+cl|f][+n][+wcap][+ppen]'. Draw symmetrical error bars.
- G : str
Select color or pattern for filling of symbols or polygons. Default is no fill.
- S : str
Plot symbols (including vectors, pie slices, fronts, decorated or quoted lines).
- W : str
Set pen attributes for lines or the outline of symbols.
- U : bool or str
Draw GMT time stamp logo on plot.