Cesium-Prequel/Specs/Core/CircleOutlineGeometrySpec.js

import { Cartesian3 } from "../../Source/Cesium.js";
import { CircleOutlineGeometry } from "../../Source/Cesium.js";
import { Ellipsoid } from "../../Source/Cesium.js";
import createPackableSpecs from "../createPackableSpecs.js";

describe("Core/CircleOutlineGeometry", function () {
  it("throws without a center", function () {
    expect(function () {
      return new CircleOutlineGeometry({
        radius: 1.0,
      });
    }).toThrowDeveloperError();
  });

  it("throws without a radius", function () {
    expect(function () {
      return new CircleOutlineGeometry({
        center: Cartesian3.fromDegrees(0, 0),
      });
    }).toThrowDeveloperError();
  });

  it("throws with a negative granularity", function () {
    expect(function () {
      return new CircleOutlineGeometry({
        center: Cartesian3.fromDegrees(0, 0),
        radius: 1.0,
        granularity: -1.0,
      });
    }).toThrowDeveloperError();
  });

  it("computes positions", function () {
    var m = CircleOutlineGeometry.createGeometry(
      new CircleOutlineGeometry({
        ellipsoid: Ellipsoid.WGS84,
        center: Cartesian3.fromDegrees(0, 0),
        granularity: 0.1,
        radius: 1.0,
      })
    );

    expect(m.attributes.position.values.length).toEqual(8 * 3);
    expect(m.indices.length).toEqual(8 * 2);
    expect(m.boundingSphere.radius).toEqual(1);
  });

  it("computes positions extruded", function () {
    var m = CircleOutlineGeometry.createGeometry(
      new CircleOutlineGeometry({
        ellipsoid: Ellipsoid.WGS84,
        center: Cartesian3.fromDegrees(0, 0),
        granularity: 0.1,
        radius: 1.0,
        extrudedHeight: 5,
      })
    );

    expect(m.attributes.position.values.length).toEqual(16 * 3); //8 top circle + 8 bottom circle
    expect(m.indices.length).toEqual(24 * 2); //8 top + 8 bottom + 8 vertical
  });

  it("computes positions extruded, no lines between top and bottom", function () {
    var m = CircleOutlineGeometry.createGeometry(
      new CircleOutlineGeometry({
        ellipsoid: Ellipsoid.WGS84,
        center: Cartesian3.fromDegrees(0, 0),
        granularity: 0.1,
        radius: 1.0,
        extrudedHeight: 10000,
        numberOfVerticalLines: 0,
      })
    );

    expect(m.attributes.position.values.length).toEqual(16 * 3);
    expect(m.indices.length).toEqual(16 * 2);
  });

  it("undefined is returned if radius is equal to or less than zero", function () {
    var circleOutline0 = new CircleOutlineGeometry({
      center: Cartesian3.fromDegrees(-75.59777, 40.03883),
      radius: 0.0,
    });
    var circleOutline1 = new CircleOutlineGeometry({
      center: Cartesian3.fromDegrees(-75.59777, 40.03883),
      radius: -10.0,
    });

    var geometry0 = CircleOutlineGeometry.createGeometry(circleOutline0);
    var geometry1 = CircleOutlineGeometry.createGeometry(circleOutline1);

    expect(geometry0).toBeUndefined();
    expect(geometry1).toBeUndefined();
  });

  var center = new Cartesian3(8, 9, 10);
  var ellipsoid = new Ellipsoid(11, 12, 13);
  var packableInstance = new CircleOutlineGeometry({
    ellipsoid: ellipsoid,
    center: center,
    granularity: 1,
    radius: 2,
    numberOfVerticalLines: 4,
    height: 5,
    extrudedHeight: 7,
  });
  var packedInstance = [
    center.x,
    center.y,
    center.z,
    ellipsoid.radii.x,
    ellipsoid.radii.y,
    ellipsoid.radii.z,
    2,
    2,
    0,
    7,
    1,
    5,
    4,
    -1,
  ];
  createPackableSpecs(
    CircleOutlineGeometry,
    packableInstance,
    packedInstance,
    "extruded"
  );

  //Because extrudedHeight is optional and has to be taken into account when packing, we have a second test without it.
  packableInstance = new CircleOutlineGeometry({
    ellipsoid: ellipsoid,
    center: center,
    granularity: 1,
    radius: 2,
    numberOfVerticalLines: 4,
    height: 5,
  });
  packedInstance = [
    center.x,
    center.y,
    center.z,
    ellipsoid.radii.x,
    ellipsoid.radii.y,
    ellipsoid.radii.z,
    2,
    2,
    0,
    5,
    1,
    5,
    4,
    -1,
  ];
  createPackableSpecs(
    CircleOutlineGeometry,
    packableInstance,
    packedInstance,
    "at height"
  );
});