Package pygeodesy :: Module geoids :: Class _GeoidBase |
[frames] | no frames]

# Class _GeoidBase

         object --+
                  |
       named._Named --+
                      |
    heights._HeightBase --+
                          |
                         _GeoidBase

Known Subclasses:
  - GeoidG2012B
  - , GeoidKarney
  - , GeoidPGM

(INTERNAL) Base class for `Geoid...`s.

Instance Methods
__init__(self, hs, p) (INTERNAL) Set up the grid axes, the `SciPy` interpolator and several internal geoid attributes. |
__call__(self, *llis) Interpolate the geoid height for one or several locations. |
__enter__(self) Open context. |
__exit__(self, *unused) Close context. |
__repr__(self) Default `repr(self)`. |
__str__(self) Default `str(self)`. |
center(self, LatLon=None) Return the center location and height of this geoid. |
close(self) Close the `egm*.pgm` geoid file if open (and applicable). |
height(self, lats, lons) Interpolate the geoid height for one or several lat-/longitudes. |
highest(self, LatLon=None, **unused) Return the location and largest height of this geoid. |
lowerleft(self, LatLon=None) Return the lower-left location and height of this geoid. |
loweright(self, LatLon=None) Return the lower-right location and height of this geoid. |
lowerright(self, LatLon=None) Return the lower-right location and height of this geoid. |
lowest(self, LatLon=None, **unused) Return the location and lowest height of this geoid. |
outside(self, lat, lon) Check whether a location is outside this geoid's lat-/longitude or crop range. |
toStr(self, prec=3, sep=', ') This geoid and all geoid attributes as a string. |
upperleft(self, LatLon=None) Return the upper-left location and height of this geoid. |
upperright(self, LatLon=None) Return the upper-right location and height of this geoid. |
Inherited from `named._Named`: `_DOT_`, `__imatmul__`, `__matmul__`, `__rmatmul__`, `attrs`, `classof`, `copy`, `dup`, `rename`, `toRepr`, `toStr2` Inherited from `object`: `__delattr__`, `__format__`, `__getattribute__`, `__hash__`, `__new__`, `__reduce__`, `__reduce_ex__`, `__setattr__`, `__sizeof__`, `__subclasshook__`

Properties
| closed Get the `egm*.pgm` geoid file status.
| cropped Is geoid cropped (`bool` or `None` if crop not supported).
| dtype Get the grid `scipy` dtype (`numpy.dtype`).
| endian Get the geoid endianess and dtype (`str`).
| hits Get the number of cache hits (`int` or `None`).
| kind Get the interpolator kind and order (`int`).
| knots Get the number of grid knots (`int`).
| mean Get the mean of this geoid's heights (`float`).
| name Get the name of this geoid (`str`).
| nBytes Get the grid in-memory size in bytes (`int`).
| pgm Get the PGM attributes (`_PGM` or `None` if not available/applicable).
| sizeB Get the geoid grid file size in bytes (`int`).
| smooth Get the `RectBivariateSpline` smoothing (`int`).
| stdev Get the standard deviation of this geoid's heights (`float`) or `None`.
Inherited from `heights._HeightBase`: `adjust`, `datum`, `kmin`, `numpy`, `scipy`, `scipy_interpolate`, `wrap` Inherited from `named._Named`: `classname`, `classnaming`, `named`, `named2`, `named3`, `named4` Inherited from `object`: `__class__`

Method Details

### __init__ (self, hs, p) (Constructor) |
(INTERNAL) Set up the grid axes, the `SciPy` interpolator and several internal geoid attributes. Arguments: `hs` - Grid knots with known height (`numpy 2darray`). `p` - The `slat, wlon, nlat, nlon, dlat, dlon` and other geoid parameters (`INTERNAL`). Raises: `GeoidError` - Incompatible grid `hs` shape or invalid `kind`. `LenError` - Mismatch grid `hs` axis. `SciPyError` - A `scipy.interpolate.inter2d` or `-.RectBivariateSpline` issue. `SciPyWarning` - A `scipy.interpolate.inter2d` or `-.RectBivariateSpline` warning as exception. Overrides: object.__init__

### __call__ (self, *llis) (Call operator) |
Interpolate the geoid height for one or several locations. Arguments: `llis` - The location or locations (`LatLon`, ... or `LatLon`s). Returns: A single interpolated geoid height (`float`) or a list or tuple of interpolated geoid heights (`float`s). Raises: `GeoidError` - Insufficient number of `llis`, an invalid `lli` or the `egm*.pgm` geoid file is closed. `RangeError` - An `lli` is outside this geoid's lat- or longitude range. `SciPyError` - A `scipy.interpolate.inter2d` or `-.RectBivariateSpline` issue. `SciPyWarning` - A `scipy.interpolate.inter2d` or `-.RectBivariateSpline` warning as exception. Overrides: heights._HeightBase.__call__

### __repr__ (self) (Representation operator) |
Default `repr(self)`. Overrides: object.__repr__ (inherited documentation)

### __str__ (self) (Informal representation operator) |
Default `str(self)`. Overrides: object.__str__ (inherited documentation)

### center (self, LatLon=None) |
Return the center location and height of this geoid. Arguments: `LatLon` - Optional class to return the location and height (`LatLon`) or `None`. Returns: If `LatLon` is `None`, a LatLon3Tuple`(lat, lon, height)` otherwise a `LatLon` instance with the lat-, longitude and height of the grid center location.

### height (self, lats, lons) |
Interpolate the geoid height for one or several lat-/longitudes. Arguments: `lats` - Latitude or latitudes (`degrees` or `degrees`s). `lons` - Longitude or longitudes (`degrees` or `degrees`s). Returns: A single interpolated geoid height (`float`) or a list of interpolated geoid heights (`float`s). Raises: `GeoidError` - Insufficient or non-matching number of `lats` and `lons`. `RangeError` - A `lat` or `lon` is outside this geoid's lat- or longitude range. `SciPyError` - A `scipy.interpolate.inter2d` or `-.RectBivariateSpline` issue. `SciPyWarning` - A `scipy.interpolate.inter2d` or `-.RectBivariateSpline` warning as exception.

### highest (self, LatLon=None, **unused) |
Return the location and largest height of this geoid. Arguments: `LatLon` - Optional class to return the location and height (`LatLon`) or `None`. Returns: If `LatLon` is `None`, a LatLon3Tuple`(lat, lon, height)` otherwise a `LatLon` instance with the lat-, longitude and height of the highest grid location.

### lowerleft (self, LatLon=None) |
Return the lower-left location and height of this geoid. Arguments: `LatLon` - Optional class to return the location (`LatLon`) and height or `None`. Returns: If `LatLon` is `None`, a LatLon3Tuple`(lat, lon, height)` otherwise a `LatLon` instance with the lat-, longitude and height of the lower-left, SW grid corner.

### loweright (self, LatLon=None) |
Return the lower-right location and height of this geoid. Arguments: `LatLon` - Optional class to return the location and height (`LatLon`) or `None`. Returns: If `LatLon` is `None`, a LatLon3Tuple`(lat, lon, height)` otherwise a `LatLon` instance with the lat-, longitude and height of the lower-right, SE grid corner.

### lowerright (self, LatLon=None) |
Return the lower-right location and height of this geoid. Arguments: `LatLon` - Optional class to return the location and height (`LatLon`) or `None`. Returns: If `LatLon` is `None`, a LatLon3Tuple`(lat, lon, height)` otherwise a `LatLon` instance with the lat-, longitude and height of the lower-right, SE grid corner.

### lowest (self, LatLon=None, **unused) |
Return the location and lowest height of this geoid. Arguments: `LatLon` - Optional class to return the location and height (`LatLon`) or `None`. Returns: If `LatLon` is `None`, a LatLon3Tuple`(lat, lon, height)` otherwise a `LatLon` instance with the lat-, longitude and height of the lowest grid location.

### outside (self, lat, lon) |
Check whether a location is outside this geoid's lat-/longitude or crop range. Arguments: `lat` - The latitude (`degrees`). `lon` - The longitude (`degrees`). Returns: A 1- or 2-character `str` if outside or an empty `str` if inside.

### toStr (self, prec=3, sep=', ') |
This geoid and all geoid attributes as a string. Arguments: `prec` - Optional number of decimal digits (0..9 or `None` for default). Trailing zero decimals are stripped for `prec` values of 1 and above, but kept for negative `prec` values. `sep` - Optional separator (`str`). Returns: Geoid name and attributes (`str`). Overrides: named._Named.toStr

### upperleft (self, LatLon=None) |
Return the upper-left location and height of this geoid. Arguments: `LatLon` - Optional class to return the location and height (`LatLon`) or `None`. Returns: If `LatLon` is `None`, a LatLon3Tuple`(lat, lon, height)` otherwise a `LatLon` instance with the lat-, longitude and height of the upper-left, NW grid corner.

### upperright (self, LatLon=None) |
Return the upper-right location and height of this geoid. Arguments: `LatLon` - Optional class to return the location and height (`LatLon`) or `None`. Returns: If `LatLon` is `None`, a LatLon3Tuple`(lat, lon, height)` otherwise a `LatLon` instance with the lat-, longitude and height of the upper-right, NE grid corner.

Property Details

### closed Get the `egm*.pgm` geoid file status. Get method: closed(self) - Get the `egm*.pgm` geoid file status. Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### cropped Is geoid cropped (`bool` or `None` if crop not supported). Get method: cropped(self) - Is geoid cropped (`bool` or `None` if crop not supported). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### dtype Get the grid `scipy` dtype (`numpy.dtype`). Get method: dtype(self) - Get the grid `scipy` dtype (`numpy.dtype`). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### endian Get the geoid endianess and dtype (`str`). Get method: endian(self) - Get the geoid endianess and dtype (`str`). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### hits Get the number of cache hits (`int` or `None`). Get method: hits(self) - Get the number of cache hits (`int` or `None`). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### kind Get the interpolator kind and order (`int`). Get method: kind(self) - Get the interpolator kind and order (`int`). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### knots Get the number of grid knots (`int`). Get method: knots(self) - Get the number of grid knots (`int`). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### mean Get the mean of this geoid's heights (`float`). Get method: mean(self) - Get the mean of this geoid's heights (`float`). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### name Get the name of this geoid (`str`). Get method: name(self) - Get the name of this geoid (`str`). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### nBytes Get the grid in-memory size in bytes (`int`). Get method: nBytes(self) - Get the grid in-memory size in bytes (`int`). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### pgm Get the PGM attributes (`_PGM` or `None` if not available/applicable). Get method: pgm(self) - Get the PGM attributes (`_PGM` or `None` if not available/applicable). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### sizeB Get the geoid grid file size in bytes (`int`). Get method: sizeB(self) - Get the geoid grid file size in bytes (`int`). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### smooth Get the `RectBivariateSpline` smoothing (`int`). Get method: smooth(self) - Get the `RectBivariateSpline` smoothing (`int`). Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.

### stdev Get the standard deviation of this geoid's heights (`float`) or `None`. Get method: stdev(self) - Get the standard deviation of this geoid's heights (`float`) or `None`. Set method: _fset_error(inst, val) - Throws an `AttributeError`, always. Delete Method: _fdel(inst) - Zap the cached/memoized `property` value.