RectangleGeometry

new RectangleGeometry(options)

A description of a cartographic rectangle on an ellipsoid centered at the origin.
Name Type Description
options Object Object with the following properties:
Name Type Default Description
rectangle Rectangle A cartographic rectangle with north, south, east and west properties in radians.
vertexFormat VertexFormat VertexFormat.DEFAULT optional The vertex attributes to be computed.
ellipsoid Ellipsoid Ellipsoid.WGS84 optional The ellipsoid on which the rectangle lies.
granularity Number CesiumMath.RADIANS_PER_DEGREE optional The distance, in radians, between each latitude and longitude. Determines the number of positions in the buffer.
height Number 0.0 optional The height from the surface of the ellipsoid.
rotation Number 0.0 optional The rotation of the rectangle, in radians. A positive rotation is counter-clockwise.
stRotation Number 0.0 optional The rotation of the texture coordinates, in radians. A positive rotation is counter-clockwise.
extrudedHeight Number optional Height of extruded surface.
Throws:
  • DeveloperError : options.rectangle.north must be in the interval [-Pi/2, Pi/2].
  • DeveloperError : options.rectangle.south must be in the interval [-Pi/2, Pi/2].
  • DeveloperError : options.rectangle.east must be in the interval [-Pi, Pi].
  • DeveloperError : options.rectangle.west must be in the interval [-Pi, Pi].
  • DeveloperError : options.rectangle.north must be greater than options.rectangle.south.
Example:
// 1. create an rectangle
var rectangle = new Cesium.RectangleGeometry({
  ellipsoid : Cesium.Ellipsoid.WGS84,
  rectangle : Cesium.Rectangle.fromDegrees(-80.0, 39.0, -74.0, 42.0),
  height : 10000.0
});
var geometry = Cesium.RectangleGeometry.createGeometry(rectangle);

// 2. create an extruded rectangle without a top
var rectangle = new Cesium.RectangleGeometry({
  ellipsoid : Cesium.Ellipsoid.WGS84,
  rectangle : Cesium.Rectangle.fromDegrees(-80.0, 39.0, -74.0, 42.0),
  height : 10000.0,
  extrudedHieght: 300000,
  closeTop: false
});
var geometry = Cesium.RectangleGeometry.createGeometry(rectangle);
Demo:
See:
  • RectangleGeometry#createGeometry
Source: Core/RectangleGeometry.js, line 546

Members

staticRectangleGeometry.packedLength :Number

The number of elements used to pack the object into an array.
Source: Core/RectangleGeometry.js, line 589

Methods

staticRectangleGeometry.createGeometry(rectangleGeometry) → Geometry

Computes the geometric representation of an rectangle, including its vertices, indices, and a bounding sphere.
Name Type Description
rectangleGeometry RectangleGeometry A description of the rectangle.
Returns:
The computed vertices and indices.
Throws:
Source: Core/RectangleGeometry.js, line 719

staticRectangleGeometry.pack(value, array, startingIndex)

Stores the provided instance into the provided array.
Name Type Default Description
value BoundingSphere The value to pack.
array Array.<Number> The array to pack into.
startingIndex Number 0 optional The index into the array at which to start packing the elements.
Source: Core/RectangleGeometry.js, line 598

staticRectangleGeometry.unpack(array, startingIndex, result)

Retrieves an instance from a packed array.
Name Type Default Description
array Array.<Number> The packed array.
startingIndex Number 0 optional The starting index of the element to be unpacked.
result RectangleGeometry optional The object into which to store the result.
Source: Core/RectangleGeometry.js, line 653