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object --+
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named._Named --+
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heights._HeightBase --+
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heights._HeightsBase --+
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_GeoidBase --+
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GeoidPGM
Geoid height interpolator for Karney's GeographicLib Earth Gravitational Model (EGM) geoid egm*.pgm datasets but based on SciPy RectBivariateSpline or interp2d interpolation.
Use any of the egm84-, egm96- or egm2008-*.pgm datasets. However,
unless cropped, an entire egm*.pgm dataset is loaded into
the SciPy RectBivariateSpline or interp2d interpolator and converted from 2-byte
int to 8-byte dtype float64. Therefore,
internal memory usage is 4x the egm*.pgm file size and may exceed the available memory,
especially with 32-bit Python, see properties .nBytes and
.sizeB.
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| Method Details |
New GeoidPGM interpolator.
Note:
The GeographicLib egm*.pgm file sizes are based on a
2-byte See Also: Class GeoidKarney and function egmGeoidHeights. |
Interpolate the geoid height for one or several locations.
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Interpolate the geoid height for one or several lat-/longitudes.
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