function to convert 3D geographical coordinates to Cartesian?
Tom, I guess you are aware of rgdal::spTransform?
On 12/30/2012 06:40 AM, Tom Roche wrote:
Is there packaged code to convert geographical coordinates (e.g., longitude, latitude, elevation) to Cartesian coordinates in 3-space? The spherical-to-Cartesian math is straightforward enough, but there's certainly scope for error, so I'd prefer to use tested, previously-used code if available. TIA, Tom Roche <Tom_Roche at pobox.com>
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