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JavaScript

import { ApproximateTerrainHeights } from "../../Source/Cesium.js";
import { ArcType } from "../../Source/Cesium.js";
import { Cartesian3 } from "../../Source/Cesium.js";
import { Color } from "../../Source/Cesium.js";
import { CoplanarPolygonGeometry } from "../../Source/Cesium.js";
import { CoplanarPolygonOutlineGeometry } from "../../Source/Cesium.js";
import { Ellipsoid } from "../../Source/Cesium.js";
import { JulianDate } from "../../Source/Cesium.js";
import { Math as CesiumMath } from "../../Source/Cesium.js";
import { PolygonGeometry } from "../../Source/Cesium.js";
import { PolygonHierarchy } from "../../Source/Cesium.js";
import { PolygonOutlineGeometry } from "../../Source/Cesium.js";
import { TimeIntervalCollection } from "../../Source/Cesium.js";
import { ConstantProperty } from "../../Source/Cesium.js";
import { Entity } from "../../Source/Cesium.js";
import { PolygonGeometryUpdater } from "../../Source/Cesium.js";
import { PolygonGraphics } from "../../Source/Cesium.js";
import { PropertyArray } from "../../Source/Cesium.js";
import { SampledPositionProperty } from "../../Source/Cesium.js";
import { SampledProperty } from "../../Source/Cesium.js";
import { GroundPrimitive } from "../../Source/Cesium.js";
import { HeightReference } from "../../Source/Cesium.js";
import { PrimitiveCollection } from "../../Source/Cesium.js";
import createDynamicGeometryUpdaterSpecs from "../createDynamicGeometryUpdaterSpecs.js";
import createDynamicProperty from "../createDynamicProperty.js";
import createGeometryUpdaterGroundGeometrySpecs from "../createGeometryUpdaterGroundGeometrySpecs.js";
import createGeometryUpdaterSpecs from "../createGeometryUpdaterSpecs.js";
import createScene from "../createScene.js";
describe(
"DataSources/PolygonGeometryUpdater",
function () {
var scene;
var time;
var groundPrimitiveSupported;
beforeAll(function () {
scene = createScene();
time = JulianDate.now();
groundPrimitiveSupported = GroundPrimitive.isSupported(scene);
return ApproximateTerrainHeights.initialize();
});
afterAll(function () {
scene.destroyForSpecs();
ApproximateTerrainHeights._initPromise = undefined;
ApproximateTerrainHeights._terrainHeights = undefined;
});
function createBasicPolygon() {
var polygon = new PolygonGraphics();
polygon.hierarchy = new ConstantProperty(
new PolygonHierarchy(
Cartesian3.fromRadiansArray([-1, -1, 1, -1, 1, 1, -1, 1])
)
);
polygon.height = new ConstantProperty(0);
var entity = new Entity();
entity.polygon = polygon;
return entity;
}
function createVerticalPolygon() {
var polygon = new PolygonGraphics();
polygon.hierarchy = new ConstantProperty(
new PolygonHierarchy(
Cartesian3.fromDegreesArrayHeights([
-1.0,
1.0,
0.0,
-2.0,
1.0,
0.0,
-2.0,
1.0,
0.0,
])
)
);
polygon.perPositionHeight = true;
var entity = new Entity();
entity.polygon = polygon;
return entity;
}
function createDynamicPolygon() {
var entity = createBasicPolygon();
entity.polygon.extrudedHeight = createDynamicProperty(2);
return entity;
}
function createBasicPolygonWithoutHeight() {
var polygon = new PolygonGraphics();
polygon.hierarchy = new ConstantProperty(
new PolygonHierarchy(
Cartesian3.fromRadiansArray([0, 0, 1, 0, 1, 1, 0, 1])
)
);
var entity = new Entity();
entity.polygon = polygon;
return entity;
}
function createDynamicPolygonWithoutHeight() {
var entity = createBasicPolygonWithoutHeight();
entity.polygon.granularity = createDynamicProperty(1);
return entity;
}
it("Properly computes isClosed", function () {
var entity = createBasicPolygon();
entity.polygon.perPositionHeight = true;
var updater = new PolygonGeometryUpdater(entity, scene);
expect(updater.isClosed).toBe(false); //open because of perPositionHeights
entity.polygon.perPositionHeight = false;
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isClosed).toBe(true); //close because polygon is on the ground
entity.polygon.height = 1000;
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isClosed).toBe(false); //open because polygon is at a height
entity.polygon.extrudedHeight = 1000;
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isClosed).toBe(false); //open because height === extrudedHeight so it's not extruded
entity.polygon.extrudedHeight = 100;
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isClosed).toBe(true); //closed because polygon is extruded
entity.polygon.closeTop = false;
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isClosed).toBe(false); //open because top cap isn't included
entity.polygon.closeTop = true;
entity.polygon.closeBottom = false;
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isClosed).toBe(false); //open because bottom cap isn't included
});
it("A time-varying positions causes geometry to be dynamic", function () {
var entity = createBasicPolygon();
var updater = new PolygonGeometryUpdater(entity, scene);
var point1 = new SampledPositionProperty();
point1.addSample(time, new Cartesian3());
var point2 = new SampledPositionProperty();
point2.addSample(time, new Cartesian3());
var point3 = new SampledPositionProperty();
point3.addSample(time, new Cartesian3());
entity.polygon.hierarchy = new PropertyArray();
entity.polygon.hierarchy.setValue([point1, point2, point3]);
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isDynamic).toBe(true);
});
it("A time-varying height causes geometry to be dynamic", function () {
var entity = createBasicPolygon();
var updater = new PolygonGeometryUpdater(entity, scene);
entity.polygon.height = new SampledProperty(Number);
entity.polygon.height.addSample(time, 1);
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isDynamic).toBe(true);
});
it("A time-varying extrudedHeight causes geometry to be dynamic", function () {
var entity = createBasicPolygon();
var updater = new PolygonGeometryUpdater(entity, scene);
entity.polygon.extrudedHeight = new SampledProperty(Number);
entity.polygon.extrudedHeight.addSample(time, 1);
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isDynamic).toBe(true);
});
it("A time-varying granularity causes geometry to be dynamic", function () {
var entity = createBasicPolygon();
var updater = new PolygonGeometryUpdater(entity, scene);
entity.polygon.granularity = new SampledProperty(Number);
entity.polygon.granularity.addSample(time, 1);
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isDynamic).toBe(true);
});
it("A time-varying stRotation causes geometry to be dynamic", function () {
var entity = createBasicPolygon();
var updater = new PolygonGeometryUpdater(entity, scene);
entity.polygon.stRotation = new SampledProperty(Number);
entity.polygon.stRotation.addSample(time, 1);
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isDynamic).toBe(true);
});
it("A time-varying perPositionHeight causes geometry to be dynamic", function () {
var entity = createBasicPolygon();
var updater = new PolygonGeometryUpdater(entity, scene);
entity.polygon.perPositionHeight = new SampledProperty(Number);
entity.polygon.perPositionHeight.addSample(time, 1);
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isDynamic).toBe(true);
});
it("A time-varying arcType causes geometry to be dynamic", function () {
var entity = createBasicPolygon();
var updater = new PolygonGeometryUpdater(entity, scene);
entity.polygon.arcType = new SampledProperty(Number);
entity.polygon.arcType.addSample(time, 1);
updater._onEntityPropertyChanged(entity, "polygon");
expect(updater.isDynamic).toBe(true);
});
it("Creates geometry with expected properties", function () {
var options = {
height: 431,
extrudedHeight: 123,
granularity: 0.97,
stRotation: 12,
perPositionHeight: false,
closeTop: true,
closeBottom: false,
arcType: ArcType.GEODESIC,
};
var entity = createBasicPolygon();
var polygon = entity.polygon;
polygon.outline = true;
polygon.perPositionHeight = new ConstantProperty(
options.perPositionHeight
);
polygon.closeTop = new ConstantProperty(options.closeTop);
polygon.closeBottom = new ConstantProperty(options.closeBottom);
polygon.stRotation = new ConstantProperty(options.stRotation);
polygon.height = new ConstantProperty(options.height);
polygon.extrudedHeight = new ConstantProperty(options.extrudedHeight);
polygon.granularity = new ConstantProperty(options.granularity);
polygon.arcType = new ConstantProperty(options.arcType);
var updater = new PolygonGeometryUpdater(entity, scene);
var instance;
var geometry;
instance = updater.createFillGeometryInstance(time);
geometry = instance.geometry;
expect(geometry).toBeInstanceOf(PolygonGeometry);
expect(geometry._stRotation).toEqual(options.stRotation);
expect(geometry._height).toEqual(options.height);
expect(geometry._granularity).toEqual(options.granularity);
expect(geometry._extrudedHeight).toEqual(options.extrudedHeight);
expect(geometry._closeTop).toEqual(options.closeTop);
expect(geometry._closeBottom).toEqual(options.closeBottom);
expect(geometry._arcType).toEqual(options.arcType);
expect(geometry._offsetAttribute).toBeUndefined();
instance = updater.createOutlineGeometryInstance(time);
geometry = instance.geometry;
expect(geometry).toBeInstanceOf(PolygonOutlineGeometry);
expect(geometry._height).toEqual(options.height);
expect(geometry._granularity).toEqual(options.granularity);
expect(geometry._extrudedHeight).toEqual(options.extrudedHeight);
expect(geometry._perPositionHeight).toEqual(options.perPositionHeight);
expect(geometry._offsetAttribute).toBeUndefined();
});
it("Creates coplanar polygon", function () {
var stRotation = 12;
var entity = createVerticalPolygon();
var polygon = entity.polygon;
polygon.outline = true;
polygon.stRotation = new ConstantProperty(stRotation);
var updater = new PolygonGeometryUpdater(entity, scene);
var instance;
var geometry;
instance = updater.createFillGeometryInstance(time);
geometry = instance.geometry;
expect(geometry).toBeInstanceOf(CoplanarPolygonGeometry);
expect(geometry._stRotation).toEqual(stRotation);
instance = updater.createOutlineGeometryInstance(time);
geometry = instance.geometry;
expect(geometry).toBeInstanceOf(CoplanarPolygonOutlineGeometry);
});
it("Checks that a polygon with per position heights isn't on terrain", function () {
var entity = createBasicPolygon();
entity.polygon.height = undefined;
entity.polygon.perPositionHeight = new ConstantProperty(true);
var updater = new PolygonGeometryUpdater(entity, scene);
expect(updater.onTerrain).toBe(false);
});
it("Checks that a polygon without per position heights is on terrain", function () {
var entity = createBasicPolygon();
entity.polygon.height = undefined;
entity.polygon.perPositionHeight = new ConstantProperty(false);
var updater = new PolygonGeometryUpdater(entity, scene);
if (groundPrimitiveSupported) {
expect(updater.onTerrain).toBe(true);
} else {
expect(updater.onTerrain).toBe(false);
}
});
it("Checks that a polygon without per position heights does not use a height reference", function () {
var entity = createBasicPolygon();
var graphics = entity.polygon;
graphics.perPositionHeight = new ConstantProperty(true);
graphics.outline = true;
graphics.outlineColor = Color.BLACK;
graphics.height = undefined;
graphics.extrudedHeight = undefined;
var updater = new PolygonGeometryUpdater(entity, scene);
var instance;
graphics.heightReference = new ConstantProperty(
HeightReference.RELATIVE_TO_GROUND
);
graphics.extrudedHeightReference = new ConstantProperty(
HeightReference.RELATIVE_TO_GROUND
);
updater._onEntityPropertyChanged(entity, "polygon");
instance = updater.createFillGeometryInstance(time);
expect(instance.geometry._offsetAttribute).toBeUndefined();
instance = updater.createOutlineGeometryInstance(time);
expect(instance.geometry._offsetAttribute).toBeUndefined();
});
it("dynamic updater sets properties", function () {
var polygon = new PolygonGraphics();
polygon.hierarchy = createDynamicProperty(
new PolygonHierarchy(
Cartesian3.fromRadiansArray([0, 0, 1, 0, 1, 1, 0, 1])
)
);
polygon.height = createDynamicProperty(3);
polygon.extrudedHeight = createDynamicProperty(2);
polygon.perPositionHeight = createDynamicProperty(false);
polygon.granularity = createDynamicProperty(2);
polygon.stRotation = createDynamicProperty(1);
polygon.closeTop = createDynamicProperty(false);
polygon.closeBottom = createDynamicProperty(false);
polygon.arcType = createDynamicProperty(ArcType.RHUMB);
var entity = new Entity();
entity.polygon = polygon;
var updater = new PolygonGeometryUpdater(entity, scene);
var dynamicUpdater = updater.createDynamicUpdater(
new PrimitiveCollection(),
new PrimitiveCollection()
);
dynamicUpdater.update(time);
var options = dynamicUpdater._options;
expect(options.id).toEqual(entity);
expect(options.polygonHierarchy).toEqual(polygon.hierarchy.getValue());
expect(options.height).toEqual(polygon.height.getValue());
expect(options.extrudedHeight).toEqual(polygon.extrudedHeight.getValue());
expect(options.perPositionHeight).toEqual(
polygon.perPositionHeight.getValue()
);
expect(options.granularity).toEqual(polygon.granularity.getValue());
expect(options.stRotation).toEqual(polygon.stRotation.getValue());
expect(options.closeTop).toEqual(polygon.closeTop.getValue());
expect(options.closeBottom).toEqual(polygon.closeBottom.getValue());
expect(options.arcType).toEqual(polygon.arcType.getValue());
expect(options.offsetAttribute).toBeUndefined();
});
it("geometryChanged event is raised when expected", function () {
var entity = createBasicPolygon();
var updater = new PolygonGeometryUpdater(entity, scene);
var listener = jasmine.createSpy("listener");
updater.geometryChanged.addEventListener(listener);
entity.polygon.hierarchy = new ConstantProperty([]);
updater._onEntityPropertyChanged(entity, "polygon");
expect(listener.calls.count()).toEqual(1);
entity.polygon.height = new ConstantProperty(82);
updater._onEntityPropertyChanged(entity, "polygon");
expect(listener.calls.count()).toEqual(2);
entity.availability = new TimeIntervalCollection();
updater._onEntityPropertyChanged(entity, "availability");
expect(listener.calls.count()).toEqual(3);
entity.polygon.hierarchy = undefined;
updater._onEntityPropertyChanged(entity, "polygon");
expect(listener.calls.count()).toEqual(4);
//Since there's no valid geometry, changing another property should not raise the event.
entity.polygon.height = undefined;
updater._onEntityPropertyChanged(entity, "polygon");
//Modifying an unrelated property should not have any effect.
entity.viewFrom = new ConstantProperty(Cartesian3.UNIT_X);
updater._onEntityPropertyChanged(entity, "viewFrom");
expect(listener.calls.count()).toEqual(4);
});
it("perPositionHeight is true sets onTerrain to false", function () {
var entity = createBasicPolygonWithoutHeight();
entity.polygon.fill = true;
entity.polygon.perPositionHeight = true;
var updater = new PolygonGeometryUpdater(entity, scene);
expect(updater.onTerrain).toBe(false);
});
it("computes center", function () {
var entity = createBasicPolygon();
var updater = new PolygonGeometryUpdater(entity, scene);
var result = updater._computeCenter(time);
result = Ellipsoid.WGS84.scaleToGeodeticSurface(result, result);
expect(result).toEqualEpsilon(
Cartesian3.fromDegrees(0.0, 0.0),
CesiumMath.EPSILON10
);
});
function getScene() {
return scene;
}
createGeometryUpdaterSpecs(
PolygonGeometryUpdater,
"polygon",
createBasicPolygon,
getScene
);
createDynamicGeometryUpdaterSpecs(
PolygonGeometryUpdater,
"polygon",
createDynamicPolygon,
getScene
);
createGeometryUpdaterGroundGeometrySpecs(
PolygonGeometryUpdater,
"polygon",
createBasicPolygonWithoutHeight,
createDynamicPolygonWithoutHeight,
getScene
);
},
"WebGL"
);