Why does lla2flat() return a negative altitude?

2 次查看（过去 30 天）

Dereck 2014-9-10

回答： Geoff Hayes 2014-9-11

Example:

>> lla2flat([47.1168  -88.5394  161.5260],  [47.1167  -88.5393],  0, 0)
ans =
     11.1173   -7.5890 -161.5260

Geoff Hayes 2014-9-11

Dereck - check the Algorithms section from lla2flat: The flat Earth z-axis value is the negative altitude minus the reference height (href).

Since your reference height is zero, then the z-axis value is simply -161.5260.

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