wradlib Documentation - Bitbucket

wradlib Documentation, Release 0.1.1
angle-axis label, not used at the moment, due to inconvenient placing defaults to ‘$Angle$’)#
($^{circ}$)’
saveto : string - path of the file in which the figure should be saved
if string is empty, no figure will be saved and the plot will be sent to screen
fig : matplotlib axis object
if None, a new matplotlib figure will be created, otherwise we plot on given figure
figsize : width , hight tuple in inches
defaults to (10,6)
axpos : an integer or a string
correponds to the positional argument of mpl_toolkits.axisartist.SubplotHost defaults to
‘111’ TODO: if multiple plots are used, position and size of labels have to be corrected
in source code
colormap : string
choose the colormap (“Paired” per default)
classes : sequence of numerical values
class boundaries for plotting
unit : string
the unit of the data which is plotted
extend : string
determines the behaviour of the colorbar: default value ‘neither’ produces a standard
colorbar, ‘min’ and ‘max’ produces an arrow at the minimum or maximum end, respectively,
and ‘both’ produces an arrow at both ends. If you use class boundaries for
plotting, you should typically use ‘both’.
Returns fig : figure object, just for testing and in the case of multiplot
pl : pylab object, just for testing and in the case of multiplot
3.15.3 wradlib.vis.Grid2Basemap
class wradlib.vis.Grid2Basemap(bbox, classes, unit=’‘, points={},
cmap=, shpfiles=[], **kwargs)
Plot gridded data on a background map
STILL UNDER DEVELOPMENT!!!
This class allows to plot gridded data (e.g. PPIs, CAPPIs, composites) on a background. The background map
(Basemap) can include country borders, coastlines, meridians as well as user-defined shapefiles. The plot will
appear as filled contours.
In order to plot user defined backgroud data such as points or shapefiles, these have to be provided in “geographical
projection”, i.e. in lat/lon coordinates based on WGS84. You can use any GIS for this task. Shapefiles are
then passed to the constructor by providing a list of file paths in the argument shpfiles (see Parameters).
Using Grid2Basemap(...), the background map is plotted. The actual data is plotted by using the plot method.
This procedure allows to repeatedly plot data on a map (e.g. a time series) without each time plotting the
88 Chapter 3. Library Reference