kotlin-cesium-engine/cesium.engine/OrthographicOffCenterFrustum

OrthographicOffCenterFrustum

external class OrthographicOffCenterFrustum(source)

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.

const maxRadii = ellipsoid.maximumRadius;

const frustum = new OrthographicOffCenterFrustum();
frustum.right = maxRadii * Math.PI;
frustum.left = -c.frustum.right;
frustum.top = c.frustum.right * (canvas.clientHeight / canvas.clientWidth);
frustum.bottom = -c.frustum.top;
frustum.near = 0.01 * maxRadii;
frustum.far = 50.0 * maxRadii;
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See also

Constructors

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constructor()

Properties

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var bottom: Double?

The bottom clipping plane.

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var far: Double

The distance of the far plane.

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var left: Double?

The left clipping plane.

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var near: Double

The distance of the near plane.

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val projectionMatrix: Matrix4

Gets the orthographic projection matrix computed from the view frustum.

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var right: Double?

The right clipping plane.

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var top: Double?

The top clipping plane.

Functions

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fun clone(result: OrthographicOffCenterFrustum? = definedExternally): OrthographicOffCenterFrustum

Returns a duplicate of a OrthographicOffCenterFrustum instance.

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fun computeCullingVolume(position: Cartesian3, direction: Cartesian3, up: Cartesian3): CullingVolume

Creates a culling volume for this frustum.

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fun equalsEpsilon(other: OrthographicOffCenterFrustum, relativeEpsilon: Double, absoluteEpsilon: Double? = definedExternally): Boolean

Compares the provided OrthographicOffCenterFrustum componentwise and returns true if they pass an absolute or relative tolerance test, false otherwise.

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fun getPixelDimensions(drawingBufferWidth: Double, drawingBufferHeight: Double, distance: Double, pixelRatio: Double, result: Cartesian2): Cartesian2

Returns the pixel's width and height in meters.