pygmt.Figure.basemap

Figure.basemap(*, region=None, projection=None, zscale=None, zsize=None, frame=None, map_scale=None, box=None, rose=None, compass=None, verbose=None, panel=None, coltypes=None, perspective=None, transparency=None, **kwargs)

Plot base maps and frames for the figure.

Creates a basic or fancy basemap with axes, fill, and titles. Several map projections are available, and the user may specify separate tick-mark intervals for boundary annotation, ticking, and [optionally] gridlines. A simple map scale or directional rose may also be plotted.

At least one of the parameters frame, map_scale, rose, or compass must be specified if not in subplot mode.

Full option list at https://docs.generic-mapping-tools.org/6.5/basemap.html

Aliases:

  • B = frame

  • F = box

  • J = projection

  • JZ = zsize

  • Jz = zscale

  • L = map_scale

  • R = region

  • Td = rose

  • Tm = compass

  • V = verbose

  • c = panel

  • f = coltypes

  • p = perspective

  • t = transparency

Parameters:
  • projection (str) – projcode[projparams/]width|scale. Select map projection.

  • zscale/zsize (float or str) – Set z-axis scaling or z-axis size.

  • region (str or list) – xmin/xmax/ymin/ymax[+r][+uunit]. Specify the region of interest. Required if this is the first plot command.

  • frame (bool, str, or list) – Set map boundary frame and axes attributes.

  • map_scale (str) – [g|j|J|n|x]refpoint+wlength. Draw a simple map scale centered on the reference point specified.

  • box (bool or str) – [+cclearances][+gfill][+i[[gap/]pen]][+p[pen]][+r[radius]][+s[[dx/dy/][shade]]]. If set to True, draw a rectangular border around the map scale or rose. Alternatively, specify a different pen with +ppen. Add +gfill to fill the scale panel [Default is no fill]. Append +cclearance where clearance is either gap, xgap/ygap, or lgap/rgap/bgap/tgap where these items are uniform, separate in x- and y-direction, or individual side spacings between scale and border. Append +i to draw a secondary, inner border as well. We use a uniform gap between borders of 2p and the MAP_DEFAULTS_PEN unless other values are specified. Append +r to draw rounded rectangular borders instead, with a 6p corner radius. You can override this radius by appending another value. Finally, append +s to draw an offset background shaded region. Here, dx/dy indicates the shift relative to the foreground frame [Default is "4p/-4p"] and shade sets the fill style to use for shading [Default is "gray50"].

  • rose (str) – Draw a map directional rose on the map at the location defined by the reference and anchor points.

  • compass (str) – Draw a map magnetic rose on the map at the location defined by the reference and anchor points.

  • verbose (bool or str) –

    Select verbosity level [Default is w], which modulates the messages written to stderr. Choose among 7 levels of verbosity:

    • q - Quiet, not even fatal error messages are produced

    • e - Error messages only

    • w - Warnings [Default]

    • t - Timings (report runtimes for time-intensive algorithms)

    • i - Informational messages (same as verbose=True)

    • c - Compatibility warnings

    • d - Debugging messages

  • panel (bool, int, or list) – [row,col|index]. Select a specific subplot panel. Only allowed when in subplot mode. Use panel=True to advance to the next panel in the selected order. Instead of row,col you may also give a scalar value index which depends on the order you set via autolabel when the subplot was defined. Note: row, col, and index all start at 0.

  • coltypes (str) – [i|o]colinfo. Specify data types of input and/or output columns (time or geographical data). Full documentation is at https://docs.generic-mapping-tools.org/6.5/gmt.html#f-full.

  • perspective (list or str) – [x|y|z]azim[/elev[/zlevel]][+wlon0/lat0[/z0]][+vx0/y0]. Select perspective view and set the azimuth and elevation angle of the viewpoint [Default is [180, 90]]. Full documentation is at https://docs.generic-mapping-tools.org/6.5/gmt.html#perspective-full.

  • transparency (float) – Set transparency level, in [0-100] percent range [Default is 0, i.e., opaque]. Only visible when PDF or raster format output is selected. Only the PNG format selection adds a transparency layer in the image (for further processing).

Examples using pygmt.Figure.basemap

Choropleth map

Choropleth map

Color land and water

Color land and water

Political boundaries

Political boundaries

Shorelines

Shorelines

Connection lines

Connection lines

Decorated lines

Decorated lines

Envelope

Envelope

Generate points along great circles

Generate points along great circles

Line colors with a custom CPT

Line colors with a custom CPT

Line fronts

Line fronts

Line segment caps and joints

Line segment caps and joints

Line styles

Line styles

Quoted lines

Quoted lines

Roads

Roads

Vector heads and tails

Vector heads and tails

Wiggle along tracks

Wiggle along tracks

Basic geometric symbols

Basic geometric symbols

Bit and hachure patterns

Bit and hachure patterns

Color points by categories

Color points by categories

Custom symbols

Custom symbols

Datetime inputs

Datetime inputs

Multi-parameter symbols

Multi-parameter symbols

Points

Points

Points with varying transparency

Points with varying transparency

Scatter plots with a legend

Scatter plots with a legend

Text symbols

Text symbols

Vertical or horizontal bars

Vertical or horizontal bars

Clipping grid values

Clipping grid values

Create ‘wet-dry’ mask grid

Create 'wet-dry' mask grid

Cross-section along a transect

Cross-section along a transect

Images on figures

Images on figures

Sampling along tracks

Sampling along tracks

Double Y axes graph

Double Y axes graph

Scatter plot with histograms

Scatter plot with histograms

Colorbar

Colorbar

Inset map showing a rectangular region

Inset map showing a rectangular region

Legend

Legend

Logo

Logo

Scale bar

Scale bar

Timestamp

Timestamp

Coastlines and borders

Coastlines and borders

Frames, ticks, titles, and labels

Frames, ticks, titles, and labels

Plotting data points

Plotting data points

Plotting text

Plotting text

Configuring PyGMT defaults

Configuring PyGMT defaults

Making subplots

Making subplots

3. Figure elements

3. Figure elements

4. PyGMT I/O: Table inputs

4. PyGMT I/O: Table inputs

Polar

Polar