Package pygeodesy :: Module rhumbx :: Class Rhumb |
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# Class Rhumb

      object --+
               |
    named._Named --+
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    named._NamedBase --+
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        karney._CapsBase --+
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         rhumbBase.RhumbBase --+
                               |
                              Rhumb

Class to solve the direct and inverse rhumb problems, based on elliptic functions or Krüger series expansion.

See Also: The Detailed Description of Karney's C++ `Rhumb Class`.

Instance Methods
__init__(self, a_earth=Ellipsoid(name='WGS84', a=6378137, b=6356752.31424518, f_=298.`...`, f=None, exact=True, name='', **RA_TMorder) New `rhumbx.Rhumb`. |
Direct7(self, lat1, lon1, azi12, s12, outmask=16768) DEPRECATED, use method Rhumb.Direct8. |
Inverse7(self, lat1, lon1, azi12, s12, outmask=17920) DEPRECATED, use method Rhumb.Inverse8. |
orders(self, RAorder=None, TMorder=None) DEPRECATED, use properties `RAorder` and/or `TMorder`. |
toStr(self, prec=6, sep=', ', **unused) Return this `Rhumb` as string. |
Inherited from `rhumbBase.RhumbBase`: `ArcDirect`, `Direct`, `Direct8`, `DirectLine`, `Inverse`, `Inverse8`, `InverseLine`, `Line` Inherited from `karney._CapsBase`: `caps_` Inherited from `named._NamedBase`: `__repr__`, `__str__`, `others`, `toRepr` Inherited from `named._Named`: `__imatmul__`, `__matmul__`, `__rmatmul__`, `attrs`, `classof`, `copy`, `dup`, `methodname`, `rename`, `toStr2` Inherited from `object`: `__delattr__`, `__format__`, `__getattribute__`, `__hash__`, `__new__`, `__reduce__`, `__reduce_ex__`, `__setattr__`, `__sizeof__`, `__subclasshook__`

Class Variables
Inherited from `karney._CapsBase`: `ALL`, `AREA`, `AZIMUTH`, `DISTANCE`, `DISTANCE_IN`, `EMPTY`, `GEODESICSCALE`, `LATITUDE`, `LINE_OFF`, `LONGITUDE`, `LONG_UNROLL`, `REDUCEDLENGTH`, `STANDARD`

Properties
| RAorder Get the Rhumb Area order (`int`, 4, 5, 6, 7 or 8).
Inherited from `rhumbBase.RhumbBase`: `TMorder`, `a`, `b`, `ellipsoid`, `equatoradius`, `exact`, `f`, `f_max`, `flattening`, `polaradius` Inherited from `karney._CapsBase`: `caps`, `debug` Inherited from `named._Named`: `classname`, `classnaming`, `iteration`, `name`, `named`, `named2`, `named3`, `named4`, `sizeof` Inherited from `object`: `__class__`

Method Details

### __init__ (self, a_earth=Ellipsoid(name='WGS84', a=6378137, b=6356752.31424518, f_=298.`...`, f=None, exact=True, name='', **RA_TMorder) (Constructor) |
New `rhumbx.Rhumb`. Arguments: `a_earth` - This rhumb's earth model (Ellipsoid, Ellipsoid2, a_f2Tuple, Datum, 2-tuple `(a, f)`) or the (equatorial) radius (`scalar`). `f` - The ellipsoid's flattening (`scalar`), iff `a_earth` is a `scalar`, ignored otherwise. `exact` - If `True`, use an addition theorem for elliptic integrals to compute Divided differences, otherwise use the Krüger series expansion (`bool` or `None`), see also properties `exact` and `TMorder`. `name` - Optional name (`str`). `RA_TMorder` - Optional keyword arguments `RAorder` and `TMorder` to set the respective `order`, see properties `RAorder` and `TMorder` and method `orders`. Raises: `RhumbError` - Invalid `a_earth`, `f` or `RA_TMorder`. Overrides: object.__init__

### Direct7 (self, lat1, lon1, azi12, s12, outmask=16768) |
DEPRECATED, use method Rhumb.Direct8. Returns: A DEPRECATED Rhumb7Tuple. Decorators: `@deprecated_method`

### Inverse7 (self, lat1, lon1, azi12, s12, outmask=17920) |
DEPRECATED, use method Rhumb.Inverse8. Returns: A DEPRECATED Rhumb7Tuple. Decorators: `@deprecated_method`

### orders (self, RAorder=None, TMorder=None) |
DEPRECATED, use properties `RAorder` and/or `TMorder`. Get and set the RAorder and/or TMorder. Arguments: `RAorder` - Rhumb Area order (`int`, 4, 5, 6, 7 or 8). `TMorder` - Transverse Mercator order (`int`, 4, 5, 6, 7 or 8). Returns: RhumbOrder2Tuple`(RAorder, TMorder)` with the previous `RAorder` and `TMorder` setting. Decorators: `@deprecated_method`

### toStr (self, prec=6, sep=', ', **unused) |
Return this `Rhumb` as string. Arguments: `prec` - The `float` precision, number of decimal digits (0..9). Trailing zero decimals are stripped for `prec` values of 1 and above, but kept for negative `prec` values. `sep` - Separator to join (`str`). Returns: Tuple items (`str`). Overrides: named._Named.toStr

Property Details

### RAorder Get the Rhumb Area order (`int`, 4, 5, 6, 7 or 8). Get method: RAorder(self) - Get the Rhumb Area order (`int`, 4, 5, 6, 7 or 8). Set method: RAorder(self, order) - Set the Rhumb Area order (`int`, 4, 5, 6, 7 or 8). Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.