Common Parameters

distcalc

Determine how spherical distances are calculated. Valid values are:

  • "g": Perform great circle distance calculations, with parameters such as distance increments or radii compared against calculated great circle distances [Default].

  • "e": Select ellipsoidal (or geodesic) mode for the highest precision but slowest calculation time.

  • "f": Select Flat Earth mode, which gives a more approximate but faster result.

Note: (1) All spherical distance calculations depend on the current ellipsoid (PROJ_ELLIPSOID), the definition of the mean radius (PROJ_MEAN_RADIUS), and the specification of the latitude type (PROJ_AUX_LATITUDE). Geodesic distance calculations are also controlled by the algorithm to use for geodesic calculations (PROJ_GEODESIC). (2) Coordinate transformations that can use ellipsoidal or spherical forms will first consult this parameter if given.

verbose

Select verbosity level, which modulates the messages written to stderr.

Choose among 7 levels of verbosity [Default is "warning"]:

  • "quiet": Quiet, not even fatal error messages are produced

  • "error": Error messages only

  • "warning": Warnings [Default]

  • "timing": Timings (report runtimes for time-intensive algorithms)

  • "info": Informational messages (same as verbose=True)

  • "compat": Compatibility warnings

  • "debug": Debugging messages