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import BoundingSphere from "../Core/BoundingSphere.js";
import Check from "../Core/Check.js";
import Color from "../Core/Color.js";
import ColorGeometryInstanceAttribute from "../Core/ColorGeometryInstanceAttribute.js";
import defined from "../Core/defined.js";
import destroyObject from "../Core/destroyObject.js";
import DeveloperError from "../Core/DeveloperError.js";
import DistanceDisplayCondition from "../Core/DistanceDisplayCondition.js";
import DistanceDisplayConditionGeometryInstanceAttribute from "../Core/DistanceDisplayConditionGeometryInstanceAttribute.js";
import Event from "../Core/Event.js";
import GeometryInstance from "../Core/GeometryInstance.js";
import GroundPolylineGeometry from "../Core/GroundPolylineGeometry.js";
import Iso8601 from "../Core/Iso8601.js";
import oneTimeWarning from "../Core/oneTimeWarning.js";
import PolylineGeometry from "../Core/PolylineGeometry.js";
import PolylinePipeline from "../Core/PolylinePipeline.js";
import ShowGeometryInstanceAttribute from "../Core/ShowGeometryInstanceAttribute.js";
import Entity from "../DataSources/Entity.js";
import ClassificationType from "../Scene/ClassificationType.js";
import GroundPolylinePrimitive from "../Scene/GroundPolylinePrimitive.js";
import PolylineCollection from "../Scene/PolylineCollection.js";
import PolylineColorAppearance from "../Scene/PolylineColorAppearance.js";
import PolylineMaterialAppearance from "../Scene/PolylineMaterialAppearance.js";
import ShadowMode from "../Scene/ShadowMode.js";
import BoundingSphereState from "./BoundingSphereState.js";
import ColorMaterialProperty from "./ColorMaterialProperty.js";
import ConstantProperty from "./ConstantProperty.js";
import MaterialProperty from "./MaterialProperty.js";
import Property from "./Property.js";
const defaultZIndex = new ConstantProperty(0);
//We use this object to create one polyline collection per-scene.
const polylineCollections = {};
const scratchColor = new Color();
const defaultMaterial = new ColorMaterialProperty(Color.WHITE);
const defaultShow = new ConstantProperty(true);
const defaultShadows = new ConstantProperty(ShadowMode.DISABLED);
const defaultDistanceDisplayCondition = new ConstantProperty(
new DistanceDisplayCondition(),
);
const defaultClassificationType = new ConstantProperty(ClassificationType.BOTH);
function GeometryOptions() {
this.vertexFormat = undefined;
this.positions = undefined;
this.width = undefined;
this.arcType = undefined;
this.granularity = undefined;
}
function GroundGeometryOptions() {
this.positions = undefined;
this.width = undefined;
this.arcType = undefined;
this.granularity = undefined;
}
/**
* A {@link GeometryUpdater} for polylines.
* Clients do not normally create this class directly, but instead rely on {@link DataSourceDisplay}.
* @alias PolylineGeometryUpdater
* @constructor
*
* @param {Entity} entity The entity containing the geometry to be visualized.
* @param {Scene} scene The scene where visualization is taking place.
*/
function PolylineGeometryUpdater(entity, scene) {
//>>includeStart('debug', pragmas.debug);
if (!defined(entity)) {
throw new DeveloperError("entity is required");
}
if (!defined(scene)) {
throw new DeveloperError("scene is required");
}
//>>includeEnd('debug');
this._entity = entity;
this._scene = scene;
this._entitySubscription = entity.definitionChanged.addEventListener(
PolylineGeometryUpdater.prototype._onEntityPropertyChanged,
this,
);
this._fillEnabled = false;
this._dynamic = false;
this._geometryChanged = new Event();
this._showProperty = undefined;
this._materialProperty = undefined;
this._shadowsProperty = undefined;
this._distanceDisplayConditionProperty = undefined;
this._classificationTypeProperty = undefined;
this._depthFailMaterialProperty = undefined;
this._geometryOptions = new GeometryOptions();
this._groundGeometryOptions = new GroundGeometryOptions();
this._id = `polyline-${entity.id}`;
this._clampToGround = false;
this._supportsPolylinesOnTerrain = Entity.supportsPolylinesOnTerrain(scene);
this._zIndex = 0;
this._onEntityPropertyChanged(entity, "polyline", entity.polyline, undefined);
}
Object.defineProperties(PolylineGeometryUpdater.prototype, {
/**
* Gets the unique ID associated with this updater
* @memberof PolylineGeometryUpdater.prototype
* @type {string}
* @readonly
*/
id: {
get: function () {
return this._id;
},
},
/**
* Gets the entity associated with this geometry.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {Entity}
* @readonly
*/
entity: {
get: function () {
return this._entity;
},
},
/**
* Gets a value indicating if the geometry has a fill component.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {boolean}
* @readonly
*/
fillEnabled: {
get: function () {
return this._fillEnabled;
},
},
/**
* Gets a value indicating if fill visibility varies with simulation time.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {boolean}
* @readonly
*/
hasConstantFill: {
get: function () {
return (
!this._fillEnabled ||
(!defined(this._entity.availability) &&
Property.isConstant(this._showProperty))
);
},
},
/**
* Gets the material property used to fill the geometry.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {MaterialProperty}
* @readonly
*/
fillMaterialProperty: {
get: function () {
return this._materialProperty;
},
},
/**
* Gets the material property used to fill the geometry when it fails the depth test.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {MaterialProperty}
* @readonly
*/
depthFailMaterialProperty: {
get: function () {
return this._depthFailMaterialProperty;
},
},
/**
* Gets a value indicating if the geometry has an outline component.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {boolean}
* @readonly
*/
outlineEnabled: {
value: false,
},
/**
* Gets a value indicating if outline visibility varies with simulation time.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {boolean}
* @readonly
*/
hasConstantOutline: {
value: true,
},
/**
* Gets the {@link Color} property for the geometry outline.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {Property}
* @readonly
*/
outlineColorProperty: {
value: undefined,
},
/**
* Gets the property specifying whether the geometry
* casts or receives shadows from light sources.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {Property}
* @readonly
*/
shadowsProperty: {
get: function () {
return this._shadowsProperty;
},
},
/**
* Gets or sets the {@link DistanceDisplayCondition} Property specifying at what distance from the camera that this geometry will be displayed.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {Property}
* @readonly
*/
distanceDisplayConditionProperty: {
get: function () {
return this._distanceDisplayConditionProperty;
},
},
/**
* Gets or sets the {@link ClassificationType} Property specifying if this geometry will classify terrain, 3D Tiles, or both when on the ground.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {Property}
* @readonly
*/
classificationTypeProperty: {
get: function () {
return this._classificationTypeProperty;
},
},
/**
* Gets a value indicating if the geometry is time-varying.
*
* @memberof PolylineGeometryUpdater.prototype
*
* @type {boolean}
* @readonly
*/
isDynamic: {
get: function () {
return this._dynamic;
},
},
/**
* Gets a value indicating if the geometry is closed.
* This property is only valid for static geometry.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {boolean}
* @readonly
*/
isClosed: {
value: false,
},
/**
* Gets an event that is raised whenever the public properties
* of this updater change.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {boolean}
* @readonly
*/
geometryChanged: {
get: function () {
return this._geometryChanged;
},
},
/**
* Gets a value indicating if the path of the line.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {ArcType}
* @readonly
*/
arcType: {
get: function () {
return this._arcType;
},
},
/**
* Gets a value indicating if the geometry is clamped to the ground.
* Returns false if polylines on terrain is not supported.
* @memberof PolylineGeometryUpdater.prototype
*
* @type {boolean}
* @readonly
*/
clampToGround: {
get: function () {
return this._clampToGround && this._supportsPolylinesOnTerrain;
},
},
/**
* Gets the zindex
* @type {number}
* @memberof PolylineGeometryUpdater.prototype
* @readonly
*/
zIndex: {
get: function () {
return this._zIndex;
},
},
});
/**
* Checks if the geometry is outlined at the provided time.
*
* @param {JulianDate} time The time for which to retrieve visibility.
* @returns {boolean} true if geometry is outlined at the provided time, false otherwise.
*/
PolylineGeometryUpdater.prototype.isOutlineVisible = function (time) {
return false;
};
/**
* Checks if the geometry is filled at the provided time.
*
* @param {JulianDate} time The time for which to retrieve visibility.
* @returns {boolean} true if geometry is filled at the provided time, false otherwise.
*/
PolylineGeometryUpdater.prototype.isFilled = function (time) {
const entity = this._entity;
const visible =
this._fillEnabled &&
entity.isAvailable(time) &&
this._showProperty.getValue(time);
return visible ?? false;
};
/**
* Creates the geometry instance which represents the fill of the geometry.
*
* @param {JulianDate} time The time to use when retrieving initial attribute values.
* @returns {GeometryInstance} The geometry instance representing the filled portion of the geometry.
*
* @exception {DeveloperError} This instance does not represent a filled geometry.
*/
PolylineGeometryUpdater.prototype.createFillGeometryInstance = function (time) {
//>>includeStart('debug', pragmas.debug);
if (!defined(time)) {
throw new DeveloperError("time is required.");
}
if (!this._fillEnabled) {
throw new DeveloperError(
"This instance does not represent a filled geometry.",
);
}
//>>includeEnd('debug');
const entity = this._entity;
const isAvailable = entity.isAvailable(time);
const show = new ShowGeometryInstanceAttribute(
isAvailable && entity.isShowing && this._showProperty.getValue(time),
);
const distanceDisplayCondition =
this._distanceDisplayConditionProperty.getValue(time);
const distanceDisplayConditionAttribute =
DistanceDisplayConditionGeometryInstanceAttribute.fromDistanceDisplayCondition(
distanceDisplayCondition,
);
const attributes = {
show: show,
distanceDisplayCondition: distanceDisplayConditionAttribute,
};
let currentColor;
if (this._materialProperty instanceof ColorMaterialProperty) {
if (
defined(this._materialProperty.color) &&
(this._materialProperty.color.isConstant || isAvailable)
) {
currentColor = this._materialProperty.color.getValue(time, scratchColor);
}
if (!defined(currentColor)) {
currentColor = Color.WHITE;
}
attributes.color = ColorGeometryInstanceAttribute.fromColor(currentColor);
}
Iif (this.clampToGround) {
return new GeometryInstance({
id: entity,
geometry: new GroundPolylineGeometry(this._groundGeometryOptions),
attributes: attributes,
});
}
if (
defined(this._depthFailMaterialProperty) &&
this._depthFailMaterialProperty instanceof ColorMaterialProperty
) {
if (
defined(this._depthFailMaterialProperty.color) &&
(this._depthFailMaterialProperty.color.isConstant || isAvailable)
) {
currentColor = this._depthFailMaterialProperty.color.getValue(
time,
scratchColor,
);
}
if (!defined(currentColor)) {
currentColor = Color.WHITE;
}
attributes.depthFailColor =
ColorGeometryInstanceAttribute.fromColor(currentColor);
}
return new GeometryInstance({
id: entity,
geometry: new PolylineGeometry(this._geometryOptions),
attributes: attributes,
});
};
/**
* Creates the geometry instance which represents the outline of the geometry.
*
* @param {JulianDate} time The time to use when retrieving initial attribute values.
* @returns {GeometryInstance} The geometry instance representing the outline portion of the geometry.
*
* @exception {DeveloperError} This instance does not represent an outlined geometry.
*/
PolylineGeometryUpdater.prototype.createOutlineGeometryInstance = function (
time,
) {
//>>includeStart('debug', pragmas.debug);
throw new DeveloperError(
"This instance does not represent an outlined geometry.",
);
//>>includeEnd('debug');
};
/**
* Returns true if this object was destroyed; otherwise, false.
*
* @returns {boolean} True if this object was destroyed; otherwise, false.
*/
PolylineGeometryUpdater.prototype.isDestroyed = function () {
return false;
};
/**
* Destroys and resources used by the object. Once an object is destroyed, it should not be used.
*
* @exception {DeveloperError} This object was destroyed, i.e., destroy() was called.
*/
PolylineGeometryUpdater.prototype.destroy = function () {
this._entitySubscription();
destroyObject(this);
};
PolylineGeometryUpdater.prototype._onEntityPropertyChanged = function (
entity,
propertyName,
newValue,
oldValue,
) {
if (!(propertyName === "availability" || propertyName === "polyline")) {
return;
}
const polyline = this._entity.polyline;
if (!defined(polyline)) {
if (this._fillEnabled) {
this._fillEnabled = false;
this._geometryChanged.raiseEvent(this);
}
return;
}
const positionsProperty = polyline.positions;
const show = polyline.show;
if (
(defined(show) &&
show.isConstant &&
!show.getValue(Iso8601.MINIMUM_VALUE)) || //
!defined(positionsProperty)
) {
if (this._fillEnabled) {
this._fillEnabled = false;
this._geometryChanged.raiseEvent(this);
}
return;
}
const zIndex = polyline.zIndex;
const material = polyline.material ?? defaultMaterial;
const isColorMaterial = material instanceof ColorMaterialProperty;
this._materialProperty = material;
this._depthFailMaterialProperty = polyline.depthFailMaterial;
this._showProperty = show ?? defaultShow;
this._shadowsProperty = polyline.shadows ?? defaultShadows;
this._distanceDisplayConditionProperty =
polyline.distanceDisplayCondition ?? defaultDistanceDisplayCondition;
this._classificationTypeProperty =
polyline.classificationType ?? defaultClassificationType;
this._fillEnabled = true;
this._zIndex = zIndex ?? defaultZIndex;
const width = polyline.width;
const arcType = polyline.arcType;
const clampToGround = polyline.clampToGround;
const granularity = polyline.granularity;
if (
!positionsProperty.isConstant ||
!Property.isConstant(width) ||
!Property.isConstant(arcType) ||
!Property.isConstant(granularity) ||
!Property.isConstant(clampToGround) ||
!Property.isConstant(zIndex)
) {
if (!this._dynamic) {
this._dynamic = true;
this._geometryChanged.raiseEvent(this);
}
} else {
const geometryOptions = this._geometryOptions;
const positions = positionsProperty.getValue(
Iso8601.MINIMUM_VALUE,
geometryOptions.positions,
);
//Because of the way we currently handle reference properties,
//we can't automatically assume the positions are always valid.
if (!defined(positions) || positions.length < 2) {
Eif (this._fillEnabled) {
this._fillEnabled = false;
this._geometryChanged.raiseEvent(this);
}
return;
}
let vertexFormat;
if (
isColorMaterial &&
(!defined(this._depthFailMaterialProperty) ||
this._depthFailMaterialProperty instanceof ColorMaterialProperty)
) {
vertexFormat = PolylineColorAppearance.VERTEX_FORMAT;
} else {
vertexFormat = PolylineMaterialAppearance.VERTEX_FORMAT;
}
geometryOptions.vertexFormat = vertexFormat;
geometryOptions.positions = positions;
geometryOptions.width = defined(width)
? width.getValue(Iso8601.MINIMUM_VALUE)
: undefined;
geometryOptions.arcType = defined(arcType)
? arcType.getValue(Iso8601.MINIMUM_VALUE)
: undefined;
geometryOptions.granularity = defined(granularity)
? granularity.getValue(Iso8601.MINIMUM_VALUE)
: undefined;
const groundGeometryOptions = this._groundGeometryOptions;
groundGeometryOptions.positions = positions;
groundGeometryOptions.width = geometryOptions.width;
groundGeometryOptions.arcType = geometryOptions.arcType;
groundGeometryOptions.granularity = geometryOptions.granularity;
this._clampToGround = defined(clampToGround)
? clampToGround.getValue(Iso8601.MINIMUM_VALUE)
: false;
if (!this._clampToGround && defined(zIndex)) {
oneTimeWarning(
"Entity polylines must have clampToGround: true when using zIndex. zIndex will be ignored.",
);
}
this._dynamic = false;
this._geometryChanged.raiseEvent(this);
}
};
/**
* Creates the dynamic updater to be used when GeometryUpdater#isDynamic is true.
*
* @param {PrimitiveCollection} primitives The primitive collection to use.
* @param {PrimitiveCollection|OrderedGroundPrimitiveCollection} groundPrimitives The primitive collection to use for ordered ground primitives.
* @returns {DynamicGeometryUpdater} The dynamic updater used to update the geometry each frame.
*
* @exception {DeveloperError} This instance does not represent dynamic geometry.
* @private
*/
PolylineGeometryUpdater.prototype.createDynamicUpdater = function (
primitives,
groundPrimitives,
) {
//>>includeStart('debug', pragmas.debug);
Check.defined("primitives", primitives);
Check.defined("groundPrimitives", groundPrimitives);
if (!this._dynamic) {
throw new DeveloperError(
"This instance does not represent dynamic geometry.",
);
}
//>>includeEnd('debug');
return new DynamicGeometryUpdater(primitives, groundPrimitives, this);
};
/**
* @private
*/
const generateCartesianArcOptions = {
positions: undefined,
granularity: undefined,
height: undefined,
ellipsoid: undefined,
};
function DynamicGeometryUpdater(primitives, groundPrimitives, geometryUpdater) {
this._line = undefined;
this._primitives = primitives;
this._groundPrimitives = groundPrimitives;
this._groundPolylinePrimitive = undefined;
this._material = undefined;
this._geometryUpdater = geometryUpdater;
this._positions = [];
}
function getLine(dynamicGeometryUpdater) {
if (defined(dynamicGeometryUpdater._line)) {
return dynamicGeometryUpdater._line;
}
const primitives = dynamicGeometryUpdater._primitives;
const polylineCollectionId =
dynamicGeometryUpdater._geometryUpdater._scene.id + primitives._guid;
let polylineCollection = polylineCollections[polylineCollectionId];
if (!defined(polylineCollection) || polylineCollection.isDestroyed()) {
polylineCollection = new PolylineCollection();
polylineCollections[polylineCollectionId] = polylineCollection;
primitives.add(polylineCollection);
} else Eif (!primitives.contains(polylineCollection)) {
primitives.add(polylineCollection);
}
const line = polylineCollection.add();
line.id = dynamicGeometryUpdater._geometryUpdater._entity;
dynamicGeometryUpdater._line = line;
return line;
}
DynamicGeometryUpdater.prototype.update = function (time) {
const geometryUpdater = this._geometryUpdater;
const entity = geometryUpdater._entity;
const polyline = entity.polyline;
const positionsProperty = polyline.positions;
let positions = Property.getValueOrUndefined(
positionsProperty,
time,
this._positions,
);
// Synchronize with geometryUpdater for GroundPolylinePrimitive
geometryUpdater._clampToGround = Property.getValueOrDefault(
polyline._clampToGround,
time,
false,
);
geometryUpdater._groundGeometryOptions.positions = positions;
geometryUpdater._groundGeometryOptions.width = Property.getValueOrDefault(
polyline._width,
time,
1,
);
geometryUpdater._groundGeometryOptions.arcType = Property.getValueOrDefault(
polyline._arcType,
time,
ArcType.GEODESIC,
);
geometryUpdater._groundGeometryOptions.granularity =
Property.getValueOrDefault(polyline._granularity, time, 9999);
const groundPrimitives = this._groundPrimitives;
Iif (defined(this._groundPolylinePrimitive)) {
groundPrimitives.remove(this._groundPolylinePrimitive); // destroys by default
this._groundPolylinePrimitive = undefined;
}
Iif (geometryUpdater.clampToGround) {
if (
!entity.isShowing ||
!entity.isAvailable(time) ||
!Property.getValueOrDefault(polyline._show, time, true)
) {
return;
}
if (!defined(positions) || positions.length < 2) {
return;
}
const fillMaterialProperty = geometryUpdater.fillMaterialProperty;
let appearance;
if (fillMaterialProperty instanceof ColorMaterialProperty) {
appearance = new PolylineColorAppearance();
} else {
const material = MaterialProperty.getValue(
time,
fillMaterialProperty,
this._material,
);
appearance = new PolylineMaterialAppearance({
material: material,
translucent: material.isTranslucent(),
});
this._material = material;
}
this._groundPolylinePrimitive = groundPrimitives.add(
new GroundPolylinePrimitive({
geometryInstances: geometryUpdater.createFillGeometryInstance(time),
appearance: appearance,
classificationType:
geometryUpdater.classificationTypeProperty.getValue(time),
asynchronous: false,
}),
Property.getValueOrUndefined(geometryUpdater.zIndex, time),
);
// Hide the polyline in the collection, if any
if (defined(this._line)) {
this._line.show = false;
}
return;
}
const line = getLine(this);
Iif (
!entity.isShowing ||
!entity.isAvailable(time) ||
!Property.getValueOrDefault(polyline._show, time, true)
) {
line.show = false;
return;
}
Iif (!defined(positions) || positions.length < 2) {
line.show = false;
return;
}
let arcType = ArcType.GEODESIC;
arcType = Property.getValueOrDefault(polyline._arcType, time, arcType);
const globe = geometryUpdater._scene.globe;
const ellipsoid = geometryUpdater._scene.ellipsoid;
if (arcType !== ArcType.NONE && defined(globe)) {
generateCartesianArcOptions.ellipsoid = ellipsoid;
generateCartesianArcOptions.positions = positions;
generateCartesianArcOptions.granularity = Property.getValueOrUndefined(
polyline._granularity,
time,
);
generateCartesianArcOptions.height = PolylinePipeline.extractHeights(
positions,
ellipsoid,
);
if (arcType === ArcType.GEODESIC) {
positions = PolylinePipeline.generateCartesianArc(
generateCartesianArcOptions,
);
} else {
positions = PolylinePipeline.generateCartesianRhumbArc(
generateCartesianArcOptions,
);
}
}
line.show = true;
line.positions = positions.slice();
line.material = MaterialProperty.getValue(
time,
geometryUpdater.fillMaterialProperty,
line.material,
);
line.width = Property.getValueOrDefault(polyline._width, time, 1);
line.distanceDisplayCondition = Property.getValueOrUndefined(
polyline._distanceDisplayCondition,
time,
line.distanceDisplayCondition,
);
};
DynamicGeometryUpdater.prototype.getBoundingSphere = function (result) {
//>>includeStart('debug', pragmas.debug);
Check.defined("result", result);
//>>includeEnd('debug');
if (!this._geometryUpdater.clampToGround) {
const line = getLine(this);
if (line.show && line.positions.length > 0) {
BoundingSphere.fromPoints(line.positions, result);
return BoundingSphereState.DONE;
}
} else E{
const groundPolylinePrimitive = this._groundPolylinePrimitive;
if (
defined(groundPolylinePrimitive) &&
groundPolylinePrimitive.show &&
groundPolylinePrimitive.ready
) {
const attributes = groundPolylinePrimitive.getGeometryInstanceAttributes(
this._geometryUpdater._entity,
);
if (defined(attributes) && defined(attributes.boundingSphere)) {
BoundingSphere.clone(attributes.boundingSphere, result);
return BoundingSphereState.DONE;
}
}
if (defined(groundPolylinePrimitive) && !groundPolylinePrimitive.ready) {
return BoundingSphereState.PENDING;
}
return BoundingSphereState.DONE;
}
return BoundingSphereState.FAILED;
};
DynamicGeometryUpdater.prototype.isDestroyed = function () {
return false;
};
DynamicGeometryUpdater.prototype.destroy = function () {
const geometryUpdater = this._geometryUpdater;
const polylineCollectionId =
geometryUpdater._scene.id + this._primitives._guid;
const polylineCollection = polylineCollections[polylineCollectionId];
if (defined(polylineCollection)) {
polylineCollection.remove(this._line);
Eif (polylineCollection.length === 0) {
this._primitives.removeAndDestroy(polylineCollection);
delete polylineCollections[polylineCollectionId];
}
}
Iif (defined(this._groundPolylinePrimitive)) {
this._groundPrimitives.remove(this._groundPolylinePrimitive);
}
destroyObject(this);
};
export default PolylineGeometryUpdater;
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