Specifies how the <altitude> is interpreted. Also covers the the Google extension gx
Possible values are as follows:
relativeToGround - (default) Interprets the <altitude> as a value in meters above the ground.
If the point is over water, the <altitude> will be interpreted as a value in meters above sea level.
See <gx:altitudeMode> to specify points relative to the sea floor.
clampToGround - For a camera, this setting also places the camera relativeToGround,
since putting the camera exactly at terrain height would mean that the eye would intersect
the terrain (and the view would be blocked).
absolute - Interprets the <altitude> as a value in meters above sea level.
from the gx package, relativeToSeaFloor - Interprets the altitude as a value in meters above the sea floor. If the KML feature is above land rather than sea, the altitude will be interpreted as being above the ground.
from the gx package, clampToSeaFloor - The altitude specification is ignored, and the KML feature will be positioned on the sea floor. If the KML feature is on land rather than at sea, clampToSeaFloor will instead clamp to ground.
Specifies how the <altitude> is interpreted. Also covers the the Google extension gx Possible values are as follows: