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// Automatically generated - do not modify!
@file:Suppress(
"NON_EXTERNAL_DECLARATION_IN_INAPPROPRIATE_FILE",
)
package cesium
/**
* The viewing frustum is defined by 6 planes.
* Each plane is represented by a [Cartesian4] object, where the x, y, and z components
* define the unit vector normal to the plane, and the w component is the distance of the
* plane from the origin/camera position.
* ```
* var frustum = new PerspectiveOffCenterFrustum({
* left : -1.0,
* right : 1.0,
* top : 1.0,
* bottom : -1.0,
* near : 1.0,
* far : 100.0
* });
* ```
* @see Online Documentation
*/
@JsName("\$cesium__PerspectiveOffCenterFrustum")
external class PerspectiveOffCenterFrustum {
/**
* Defines the left clipping plane.
* @see Online Documentation
*/
var left: Double
/**
* Defines the right clipping plane.
* @see Online Documentation
*/
var right: Double
/**
* Defines the top clipping plane.
* @see Online Documentation
*/
var top: Double
/**
* Defines the bottom clipping plane.
* @see Online Documentation
*/
var bottom: Double
/**
* The distance of the near plane.
* @see Online Documentation
*/
var near: Double
/**
* The distance of the far plane.
* @see Online Documentation
*/
var far: Double
/**
* Gets the perspective projection matrix computed from the view frustum.
* @see Online Documentation
*/
val projectionMatrix: Matrix4
/**
* Gets the perspective projection matrix computed from the view frustum with an infinite far plane.
* @see Online Documentation
*/
val infiniteProjectionMatrix: Matrix4
/**
* Creates a culling volume for this frustum.
* ```
* // Check if a bounding volume intersects the frustum.
* var cullingVolume = frustum.computeCullingVolume(cameraPosition, cameraDirection, cameraUp);
* var intersect = cullingVolume.computeVisibility(boundingVolume);
* ```
* @param [position] The eye position.
* @param [direction] The view direction.
* @param [up] The up direction.
* @return A culling volume at the given position and orientation.
* @see Online Documentation
*/
fun computeCullingVolume(
position: Cartesian3,
direction: Cartesian3,
up: Cartesian3,
): CullingVolume
/**
* Returns the pixel's width and height in meters.
* ```
* // Example 1
* // Get the width and height of a pixel.
* var pixelSize = camera.frustum.getPixelDimensions(scene.drawingBufferWidth, scene.drawingBufferHeight, 1.0, scene.pixelRatio, new Cartesian2());
* ```
* ```
* // Example 2
* // Get the width and height of a pixel if the near plane was set to 'distance'.
* // For example, get the size of a pixel of an image on a billboard.
* var position = camera.position;
* var direction = camera.direction;
* var toCenter = Cartesian3.subtract(primitive.boundingVolume.center, position, new Cartesian3()); // vector from camera to a primitive
* var toCenterProj = Cartesian3.multiplyByScalar(direction, Cartesian3.dot(direction, toCenter), new Cartesian3()); // project vector onto camera direction vector
* var distance = Cartesian3.magnitude(toCenterProj);
* var pixelSize = camera.frustum.getPixelDimensions(scene.drawingBufferWidth, scene.drawingBufferHeight, distance, scene.pixelRatio, new Cartesian2());
* ```
* @param [drawingBufferWidth] The width of the drawing buffer.
* @param [drawingBufferHeight] The height of the drawing buffer.
* @param [distance] The distance to the near plane in meters.
* @param [pixelRatio] The scaling factor from pixel space to coordinate space.
* @param [result] The object onto which to store the result.
* @return The modified result parameter or a new instance of [Cartesian2] with the pixel's width and height in the x and y properties, respectively.
* @see Online Documentation
*/
fun getPixelDimensions(
drawingBufferWidth: Double,
drawingBufferHeight: Double,
distance: Double,
pixelRatio: Double,
result: Cartesian2,
): Cartesian2
/**
* Returns a duplicate of a PerspectiveOffCenterFrustum instance.
* @param [result] The object onto which to store the result.
* @return The modified result parameter or a new PerspectiveFrustum instance if one was not provided.
* @see Online Documentation
*/
fun clone(result: PerspectiveOffCenterFrustum? = definedExternally): PerspectiveOffCenterFrustum
/**
* Compares the provided PerspectiveOffCenterFrustum componentwise and returns
* `true` if they pass an absolute or relative tolerance test,
* `false` otherwise.
* @param [other] The right hand side PerspectiveOffCenterFrustum.
* @param [relativeEpsilon] The relative epsilon tolerance to use for equality testing.
* @param [absoluteEpsilon] The absolute epsilon tolerance to use for equality testing.
* Default value - [relativeEpsilon]
* @return `true` if this and other are within the provided epsilon, `false` otherwise.
* @see Online Documentation
*/
fun equalsEpsilon(
other: PerspectiveOffCenterFrustum,
relativeEpsilon: Double,
absoluteEpsilon: Double? = definedExternally,
): Boolean
}
