Cesium-Prequel/Specs/Core/EllipseOutlineGeometrySpec.js

import { arrayFill } from "../../Source/Cesium.js";
import { Cartesian3 } from "../../Source/Cesium.js";
import { EllipseOutlineGeometry } from "../../Source/Cesium.js";
import { Ellipsoid } from "../../Source/Cesium.js";
import { GeometryOffsetAttribute } from "../../Source/Cesium.js";
import createPackableSpecs from "../createPackableSpecs.js";

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

  it("throws without a semiMajorAxis", function () {
    expect(function () {
      return new EllipseOutlineGeometry({
        center: Cartesian3.fromDegrees(0, 0),
        semiMinorAxis: 1.0,
      });
    }).toThrowDeveloperError();
  });

  it("throws without a semiMinorAxis", function () {
    expect(function () {
      return new EllipseOutlineGeometry({
        center: Cartesian3.fromDegrees(0, 0),
        semiMajorAxis: 1.0,
      });
    }).toThrowDeveloperError();
  });

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

  it("throws when semiMajorAxis is less than the semiMajorAxis", function () {
    expect(function () {
      return new EllipseOutlineGeometry({
        center: Cartesian3.fromDegrees(0, 0),
        semiMajorAxis: 1.0,
        semiMinorAxis: 2.0,
      });
    }).toThrowDeveloperError();
  });

  it("computes positions", function () {
    var m = EllipseOutlineGeometry.createGeometry(
      new EllipseOutlineGeometry({
        ellipsoid: Ellipsoid.WGS84,
        center: Cartesian3.fromDegrees(0, 0),
        granularity: 0.1,
        semiMajorAxis: 1.0,
        semiMinorAxis: 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 = EllipseOutlineGeometry.createGeometry(
      new EllipseOutlineGeometry({
        ellipsoid: Ellipsoid.WGS84,
        center: Cartesian3.fromDegrees(0, 0),
        granularity: 0.1,
        semiMajorAxis: 1.0,
        semiMinorAxis: 1.0,
        extrudedHeight: 5.0,
      })
    );

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

  it("computes offset attribute", function () {
    var m = EllipseOutlineGeometry.createGeometry(
      new EllipseOutlineGeometry({
        ellipsoid: Ellipsoid.WGS84,
        center: Cartesian3.fromDegrees(0, 0),
        granularity: 0.1,
        semiMajorAxis: 1.0,
        semiMinorAxis: 1.0,
        offsetAttribute: GeometryOffsetAttribute.TOP,
      })
    );

    var numVertices = 8;
    expect(m.attributes.position.values.length).toEqual(numVertices * 3);

    var offset = m.attributes.applyOffset.values;
    expect(offset.length).toEqual(numVertices);
    var expected = new Array(offset.length);
    expected = arrayFill(expected, 1);
    expect(offset).toEqual(expected);
  });

  it("computes offset attribute extruded for top vertices", function () {
    var m = EllipseOutlineGeometry.createGeometry(
      new EllipseOutlineGeometry({
        ellipsoid: Ellipsoid.WGS84,
        center: Cartesian3.fromDegrees(0, 0),
        granularity: 0.1,
        semiMajorAxis: 1.0,
        semiMinorAxis: 1.0,
        extrudedHeight: 5.0,
        offsetAttribute: GeometryOffsetAttribute.TOP,
      })
    );

    var numVertices = 16;
    expect(m.attributes.position.values.length).toEqual(numVertices * 3);

    var offset = m.attributes.applyOffset.values;
    expect(offset.length).toEqual(numVertices);
    var expected = new Array(offset.length);
    expected = arrayFill(expected, 0);
    expected = arrayFill(expected, 1, 0, 8);
    expect(offset).toEqual(expected);
  });

  it("computes offset attribute extruded for all vertices", function () {
    var m = EllipseOutlineGeometry.createGeometry(
      new EllipseOutlineGeometry({
        ellipsoid: Ellipsoid.WGS84,
        center: Cartesian3.fromDegrees(0, 0),
        granularity: 0.1,
        semiMajorAxis: 1.0,
        semiMinorAxis: 1.0,
        extrudedHeight: 5.0,
        offsetAttribute: GeometryOffsetAttribute.ALL,
      })
    );

    var numVertices = 16;
    expect(m.attributes.position.values.length).toEqual(numVertices * 3);

    var offset = m.attributes.applyOffset.values;
    expect(offset.length).toEqual(numVertices);
    var expected = new Array(offset.length);
    expected = arrayFill(expected, 1);
    expect(offset).toEqual(expected);
  });

  it("computes positions extruded, no lines drawn between top and bottom", function () {
    var m = EllipseOutlineGeometry.createGeometry(
      new EllipseOutlineGeometry({
        ellipsoid: Ellipsoid.WGS84,
        center: Cartesian3.fromDegrees(0, 0),
        granularity: 0.1,
        semiMajorAxis: 1.0,
        semiMinorAxis: 1.0,
        extrudedHeight: 5.0,
        numberOfVerticalLines: 0,
      })
    );

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

  it("undefined is returned if the minor axis is equal to or less than zero", function () {
    var ellipseOutline0 = new EllipseOutlineGeometry({
      center: Cartesian3.fromDegrees(-75.59777, 40.03883),
      semiMajorAxis: 300000.0,
      semiMinorAxis: 0.0,
    });
    var ellipseOutline1 = new EllipseOutlineGeometry({
      center: Cartesian3.fromDegrees(-75.59777, 40.03883),
      semiMajorAxis: 0.0,
      semiMinorAxis: -1.0,
    });
    var ellipseOutline2 = new EllipseOutlineGeometry({
      center: Cartesian3.fromDegrees(-75.59777, 40.03883),
      semiMajorAxis: 300000.0,
      semiMinorAxis: -10.0,
    });
    var ellipseOutline3 = new EllipseOutlineGeometry({
      center: Cartesian3.fromDegrees(-75.59777, 40.03883),
      semiMajorAxis: -1.0,
      semiMinorAxis: -2.0,
    });

    var geometry0 = EllipseOutlineGeometry.createGeometry(ellipseOutline0);
    var geometry1 = EllipseOutlineGeometry.createGeometry(ellipseOutline1);
    var geometry2 = EllipseOutlineGeometry.createGeometry(ellipseOutline2);
    var geometry3 = EllipseOutlineGeometry.createGeometry(ellipseOutline3);

    expect(geometry0).toBeUndefined();
    expect(geometry1).toBeUndefined();
    expect(geometry2).toBeUndefined();
    expect(geometry3).toBeUndefined();
  });

  var center = new Cartesian3(8, 9, 10);
  var ellipsoid = new Ellipsoid(11, 12, 13);
  var packableInstance = new EllipseOutlineGeometry({
    ellipsoid: ellipsoid,
    center: center,
    granularity: 1,
    semiMinorAxis: 2,
    semiMajorAxis: 3,
    numberOfVerticalLines: 4,
    height: 5,
    rotation: 6,
    extrudedHeight: 7,
  });
  var packedInstance = [
    center.x,
    center.y,
    center.z,
    ellipsoid.radii.x,
    ellipsoid.radii.y,
    ellipsoid.radii.z,
    3,
    2,
    6,
    7,
    1,
    5,
    4,
    -1,
  ];
  createPackableSpecs(
    EllipseOutlineGeometry,
    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 EllipseOutlineGeometry({
    ellipsoid: ellipsoid,
    center: center,
    granularity: 1,
    semiMinorAxis: 2,
    semiMajorAxis: 3,
    numberOfVerticalLines: 4,
    height: 5,
    rotation: 6,
  });
  packedInstance = [
    center.x,
    center.y,
    center.z,
    ellipsoid.radii.x,
    ellipsoid.radii.y,
    ellipsoid.radii.z,
    3,
    2,
    6,
    5,
    1,
    5,
    4,
    -1,
  ];
  createPackableSpecs(
    EllipseOutlineGeometry,
    packableInstance,
    packedInstance,
    "at height"
  );
});