CameraView

CameraView

new CameraView()

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Holds a camera view parameters, expressed as a rectangular extent and/or as a camera position, direction, and up vector.

Methods

(static) fromJson(json) → {CameraView}

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Constructs a CameraView from json. All angles must be specified in degrees. If neither json.lookAt nor json.positionHeadingPitchRoll is present, then json should have the keys position, direction, up, west, south, east, north.

Parameters:
Name Type Description
json Object

The JSON description. The JSON should be in the form of an object literal, not a string.

Properties
Name Type Attributes Description
lookAt Object <optional>

If present, must include keys targetLongitude, targetLatitude, targetHeight, heading, pitch, range.
positionHeadingPitchRoll Object <optional>

If present, must include keys cameraLongitude, cameraLatitude, cameraHeight, heading, pitch, roll.
Returns:

The camera view.

Type
CameraView

(static) fromLookAt(targetPosition, headingPitchRange) → {CameraView}

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Constructs a CameraView from a "look at" description.

Parameters:
Name Type Description
targetPosition Cartographic

The position to look at.
headingPitchRange HeadingPitchRange

The offset of the camera from the target position.
Returns:

The camera view.

Type
CameraView

(static) fromPositionHeadingPitchRoll(cameraPosition, heading, pitch, roll)

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Constructs a CameraView from a camera position and heading, pitch, and roll angles for the camera.

Parameters:
Name Type Description
cameraPosition Cartographic

The position of the camera.
heading Number

The heading of the camera in radians measured from North toward East.
pitch Number

The pitch of the camera in radians measured from the local horizontal. Positive angles look up, negative angles look down.
roll Number

The roll of the camera in radians counterclockwise.